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    •
    Professor Athula Sumathipala

    Professor Athula Sumathipala

    Title
    Professor of Psychiatry
    Location
    DJW 1.79
    Contact me
    E-mail
    Phone
    +44 (0) 1782 734724
    Email
    a.sumathipala@keele.ac.uk

    Biography

    Following an undergraduate medical degree (Faculty of Medicine, University of Colombo, Sri Lanka), Professor Sumathipala obtained a Diploma In Family Medicine and a  Doctorate in Family Medicine (Post Graduate Institute of Medicine (University of Colombo, Sri Lanka). He migrated to the UK in 1992 and was re-trained as a psychiatrist at the Maudesley and Bethlem Royal Hospitals and obtained the MRCPsych and completed the specialist training as a Liaison psychiatrist.

    He was a Research Associate (Section of Epidemiology) at the Institute of Psychiatry, Kings College, London from 1999 to 2004 and completed a PhD from University of London in 2004. He also worked as a Senior Lecturer at the Institute of Psychiatry, Kings College from 2008 to 2009.

    In 1997 he founded the Institute for Research and Development in Sri Lanka (IRD -  www.ird.lk). He moved to Sri Lanka to serve as the Director of the IRD while remaining as a Hon Senior Lecturer, IoP, Kings College, London   from 2009 to 2014. Following the Tsunami he also worked as the coordinator (Psychosocial Affairs), Centre for National Operations on Tsunami in Sri Lanka.

    He was awarded the HB Williams Traveling Professorship of the Royal Australian and New Zealand College of Psychiatrists in 2007. He was elected as an honorary Fellow of the Sri Lankan College of General Practitioners in 2008. He was awarded the Fellowship of the Royal College of Psychiatrist, UK in 2018.

    The Institute for Research and Development he founded in Sri Lanka received a merit award for ‘excellence in multidisciplinary international collaborations’ and Professor Sumathipala received ‘outstanding leadership, from National Science Foundation in 2018.

    Professor Sumathipala is also an Honorary Consultant Psychiatrist, Midlands Partnership NHS Foundation Trust, Emeritus Professor of Global Mental Health, Kings College London, Hon. Director, Institute for Research and Development, Sri Lanka and a Visiting Professor in Psychiatry and Biomedical Research at the Faculty of Medicine, Kotelawala Defence University, Sri Lanka.

    Research and scholarship

    Professor Sumathipala started the research career with an interest in medically unexplained symptoms (MUS) when he was a GP in Sri Lanka. His first research project which formed the basis of his Doctorate in Medicine: an epidemiological study of MUS. His work extended from observational epidemiology to intervention studies. He has conducted two clinical trials of CBT for the treatment of MUS in Sri Lanka.

    His interests started with MUS grounded through real life experience when he was working in primary care in Sri Lanka and extended from observational epidemiology to intervention studies. I have conducted two clinical trials of CBT for the treatment of MUS in Sri Lanka. These were identified in the Lancet Series on Global Mental Health (2007) as among a handful of such complex intervention trials of mental disorders from low and middle income countries. His first intervention study formed the basis of his PhD, the second study built on the first to investigate the efficacy of CBT for MUS delivered by primary care doctors. This work is now replicated in Vietnam in collaboration with colleagues from Australia. This CBT intervention was used as a model for a subsequent RCT using CBT as an outreach approach for patients with suicidal ideations in Sri Lanka by a PhD student at King’s College London, whom he co-supervised.
    The originality of the CBT intervention developed is that it is an intervention simple enough to be implemented by non-mental health professionals, but which conforms to CBT principles. The approach is efficient as it reduces the duration and frequency of sessions required 3-6 sessions of 30 minutes duration. The treatment package was designed by using metaphor as an effective clinical tool to get the principles of CBT across to patients and clinicians more easily. To develop an appealing and effective metaphor, he first undertook extensive qualitative research on patients’ explanatory models.

    His work particularly on MUS has had an influence policy and practice in the field. MUS are an important public health issue following disasters. Therefore after the tsunami, the WHO sponsored training of a critical mass of doctors (400). A manual and a poster were developed (www.ird.lk). The Inter-Agency Standing Committee (IASC - headed by the WHO) guidelines on mental health and psycho social support in emergency settings, has incorporated this work and have recommended it as an important front line post-disaster intervention. It is also incorporated in WHO mhGAP Intervention Guide for mental, neurological and substance use disorders in non-specialized health settings. After the earthquake in Pakistan and Sichuan province in China, I trained 40 psychiatrists using these resources.

    He also founded the Sri Lankan Twin Registry (1997), which is a unique resource; one of the few large scale functioning population based registries for twin and genetic research in a low- and middle-income country (LMIC). It comprises of a volunteer cohort of 14,120 twins and a population-based cohort of 19,040 twins. Several studies have been conducted using this registry, which have explored the prevalence and heritability of a range of psychiatric disorders including depression, somatisation, PTSD, alcohol abuse.

    Current work is extending into the interface between mental and physical health to new horizons, extending collaborations with the wider global twin research community. A follow-up study of the same cohort was completed, looking at the prevalence and interrelationship of a number of key cardiovascular and metabolic risk markers; diabetes, heart disease, and depression.

    He has also built a successful programme of research into ethical aspects of research in Sri Lanka, mainly funded by the Wellcome Trust. This work includes training and capacity building to improve research ethics and the governance of research in Sri Lanka and South Asia. This was extended to disaster related research and ethics. I have given leadership to establish the Working Group on Disaster Research and Ethics (WGDRE) in South Asia publishing ethical guidelines for disaster related research. This group has now extended to include colleagues from Australia, Brazil, Israel, Japan, China, US and EU countries.

    His work has brought him an international reputation. This is reflected through the travelling professorship I was awarded by the Royal Australian and New Zealand College of Psychiatrists (RANZCP) in 2007 and Honorary Fellowship awarded by the Sri Lankan College of General Practitioners in 2008. I have also been an invited speaker at major international conferences including the invitation by the American Psychiatric Association (APA), the World Health Organization WHO, and the National Institutes of Health (NIH) in (Beijing 2006), World Psychiatric Association & WONCA Thematic Conference (Grenada 2008), and at the 11th International congress on behavioural medicine, Washington DC (2010) and key note speech at RANZAP annual conference in New Zealand (2007).
    He has served as a member of the WHO Working Group on Somatic Distress and Dissociative Disorders, Revision of ICD-10 (2011) and WHO Guidelines Development Group (GDG) for problems and disorders specifically related to stress (SPE-STRESS) – (2011)

    However, being a researcher from a developing country, where the infrastructure for research is not well established, demanded I think beyond his personal career. He considers his greatest contribution throughout his academic and research career is the establishment of Institute for Research & Development (IRD) in Sri Lanka (www.ird.lk) and the Sri Lankan Twin Registry. Working with senior colleagues at the IoP/KCL and Sri Lanka, the resource has been extended to establish a state-of-the-art genetic laboratory and a bio-bank.
    He also realised that there was a gap in the ethical framework, which is essential for high quality research. Extension of this work earned him an additional international reputation in bioethics that resulted in the UNECSO validating him as an expert in bioethics.

    He founded and continued to provide the strategic leadership to the IRD which is now a sustainable research organization independent of government, industry and universities. The IRD has been a vehicle for developing series of large-scale local and international research projects. IRD was commissioned by the Ministry of Health Sri Lank, to carry out the first ever island wide mental health survey (2007) and also the survey on left behind families by spouse migration (2011) which contributed to the national migration policy. In 2007, the WHO Colombo office commissioned the IRD to develop and evaluate a training programme for primary care doctors in Eastern province of Sri Lanka on identification, treatment and referral of epilepsy, psychosis, severe depression, MUC and heavy alcohol use.

    This infrastructure now complements his efforts by promoting capacity building through a cadre of high-calibre junior academics.

    Teaching

    I have extensive experience in the field of teaching. I have lectured and taught seminars on a range of topics related to mental health at post-graduate level, and in international courses in research methods including qualitative methods, and ethics.

    Further information

    I consider my greatest contribution throughout my academic and research career is the establishment of Institute for Research & Development (IRD) in Sri Lanka (www.ird.lk) and the Sri Lankan Twin Registry which is a unique resource; one of the few large scale functioning population based registries for twin and genetic research in a low- and middle-income country (LMIC). I also have an international reputation in bioethics.

    Selected Publications

    • Abhayasinghe K, Weerasinghe N, Dissanayake L, Jayasinghe K, Guruge D, Sumathipala A. Examining the psychological and behavioural patterns of students in Sri Lanka during COVID-19: A qualitative study. International Health Trends and Perspectives, 15-25, vol. 2(1). doi> link> full text>
    • Triantafyllou P, Nas Z, Zavos HMS, Sumathipala A, Jayaweera K, Siribaddana SH, Hotopf M, Ritchie SJ, Rijsdijk FV. 2022. The aetiological relationship between depressive symptoms and health-related quality of life: A population-based twin study in Sri Lanka. PLoS One, e0265421, vol. 17(3). link> doi> full text>
    • Zavos HMS, Zunszain PA, Jayaweera K, Powell TR, Chatzivasileiadou M, Harber-Aschan L, Adikari A, Pannala G, Siribaddana S, Badini I, Pariante CM, Hotopf M, Sumathipala A, Rijsdijk F. 2022. Relationship between CRP and depression: A genetically sensitive study in Sri Lanka. J Affect Disord, 112-117, vol. 297. link> doi>
    • Prior JA, Crawford-Manning F, Whittle R, Abdul-Sultan A, Chew-Graham CA, Muller S, Shepherd TA, Sumathipala A, Mallen CD, Paskins Z. 2021. Vertebral fracture as a risk factor for self-harm: a retrospective cohort study. BMC Musculoskelet Disord, 757, vol. 22(1). link> doi> full text>
    • Prior JA, Crawford-Manning F, Whittle R, Abdul-Sultan A, Chew-Graham CA, Muller S, Shepherd TA, Sumathipala A, Mallen CD, Paskins Z. 2021. Vertebral fracture as a risk factor for self-harm: A retrospective cohort study. BMC Musculoskeletal Disorders, 1-7, vol. 22. link> doi> link> full text>

    Full Publications Listshow

    Books

    • Sumathipala A, Siribaddana S, Samaraweera S. 2009. Psychosis, Severe Depression, Medically Unexplained Symptoms (MUS), Epilepsy and Heavy Alcohol Use Identification, treatment and referral.
    • Sumathipala A. 2004. 'On the shoulders of giants' Biographical notes for the MRCPsych part II and I.
    • Sumathipala A and Siribaddana S. 2003. Research Ethics from a developing world perspective.
    • Sumathipala A, Siribaddana S, Mangava S, De Silva P. Cognitive behavioural therapy for medically unexplained symptoms.

    Journal Articles

    • Abhayasinghe K, Weerasinghe N, Dissanayake L, Jayasinghe K, Guruge D, Sumathipala A. Examining the psychological and behavioural patterns of students in Sri Lanka during COVID-19: A qualitative study. International Health Trends and Perspectives, 15-25, vol. 2(1). doi> link> full text>
    • Triantafyllou P, Nas Z, Zavos HMS, Sumathipala A, Jayaweera K, Siribaddana SH, Hotopf M, Ritchie SJ, Rijsdijk FV. 2022. The aetiological relationship between depressive symptoms and health-related quality of life: A population-based twin study in Sri Lanka. PLoS One, e0265421, vol. 17(3). link> doi> full text>
    • Zavos HMS, Zunszain PA, Jayaweera K, Powell TR, Chatzivasileiadou M, Harber-Aschan L, Adikari A, Pannala G, Siribaddana S, Badini I, Pariante CM, Hotopf M, Sumathipala A, Rijsdijk F. 2022. Relationship between CRP and depression: A genetically sensitive study in Sri Lanka. J Affect Disord, 112-117, vol. 297. link> doi>
    • Prior JA, Crawford-Manning F, Whittle R, Abdul-Sultan A, Chew-Graham CA, Muller S, Shepherd TA, Sumathipala A, Mallen CD, Paskins Z. 2021. Vertebral fracture as a risk factor for self-harm: a retrospective cohort study. BMC Musculoskelet Disord, 757, vol. 22(1). link> doi> full text>
    • Prior JA, Crawford-Manning F, Whittle R, Abdul-Sultan A, Chew-Graham CA, Muller S, Shepherd TA, Sumathipala A, Mallen CD, Paskins Z. 2021. Vertebral fracture as a risk factor for self-harm: A retrospective cohort study. BMC Musculoskeletal Disorders, 1-7, vol. 22. link> doi> link> full text>
    • Silventoinen K, Bogl LH, Jelenkovic A, Vuoksimaa E, Latvala A, Li W, Tan Q, Zhang D, Pang Z, Ordoñana JR, Sánchez-Romera JF, Colodro-Conde L, Willemsen G, Bartels M, van Beijsterveldt CEM, Rebato E, Corley RP, Huibregtse BM, Hopper JL, Tyler J, Duncan GE, Buchwald D, Silberg JL, Maes HH, Kandler C, Cozen W, Hwang AE, Mack TM, Nelson TL, Whitfield KE, Medda E, Nisticò L, Toccaceli V, Krueger RF, McGue M, Pahlen S, Martin NG, Medland SE, Montgomery GW, Heikkilä K, Derom CA, Vlietinck RF, Loos RJF, Magnusson PKE, Pedersen NL, Dahl Aslan AK, Hotopf M, Sumathipala A, Rijsdijk F, Siribaddana SH, Rose RJ, Sørensen TIA, Boomsma DI, Kaprio J. 2021. Educational attainment of same-sex and opposite-sex dizygotic twins: An individual-level pooled study of 19 twin cohorts. Horm Behav, 105054, vol. 136. link> doi> full text>
    • Nas Z, Zavos HMS, Sumathipala A, Jayaweera K, Siribaddana S, Hotopf M, Rijsdijk FV. 2021. Associations Between Anxiety Symptoms and Health-Related Quality of Life: A Population-Based Twin Study in Sri Lanka. Behav Genet, 394-404, vol. 51(4). link> doi> full text>
    • Abhayasinghe K, Dissanayake L, Saunders B, Campbell P, Sumathipala A. 2020. Dementia Research Activity in Sri Lanka: A Review. Journal of Neurodegenerative Disorders, vol. 3(1). doi> link> full text>
    • Oh S, Chew-Graham CA, Silverwood V, Shaheen SA, Walsh-House J, Sumathipala A, Kingstone T. 2020. Exploring women's experiences of identifying, negotiating and managing perinatal anxiety: a qualitative study. BMJ Open, e040731, vol. 10(12). link> doi> full text>
    • Rathod-Mistry T, Marshall M, Campbell P, Bailey J, Chew-Graham CA, Croft P, Frisher M, Hayward R, Negi R, Robinson L, Singh S, Sumathipala A, Thein N, Walters K, Weich S, Jordan KP. 2021. Indicators of dementia disease progression in primary care: An electronic health record cohort study. Eur J Neurol, 1499-1510, vol. 28(5). link> doi> full text>
    • Ponnamperuma T, Sumathipala A, Siribaddana S. 2020. Posttraumatic stress and co-occurrence of mental health problems in Sri Lankan adolescents. Asian J Psychiatr, 102444, vol. 54. link> doi>
    • Jayaweera K, Warnakula L, Dissanayake L, Adikari A, Siribaddana S, Zavos HMS, Rijsdijk F, Zunszain PA, Pariante CM, Glozier N, Hotopf M, Sumathipala A. 2020. The Sri Lankan twin registry biobank: South Asia's first twin biobank. Glob Health Epidemiol Genom, e5, vol. 5. link> doi> full text>
    • Ranasinghe AWIP, Fernando B, Sumathipala A, Gunathunga W. 2020. Medical ethics: knowledge, attitude and practice among doctors in three teaching hospitals in Sri Lanka. BMC Medical Ethics, Article 69, vol. 21(1). link> doi> link> full text>
    • Silventoinen K, Jelenkovic A, Sund R, Latvala A, Honda C, Inui F, Tomizawa R, Watanabe M, Sakai N, Rebato E, Busjahn A, Tyler J, Hopper JL, Ordoñana JR, Sánchez-Romera JF, Colodro-Conde L, Calais-Ferreira L, Oliveira VC, Ferreira PH, Medda E, Nisticò L, Toccaceli V, Derom CA, Vlietinck RF, Loos RJF, Siribaddana SH, Hotopf M, Sumathipala A, Rijsdijk F, Duncan GE, Buchwald D, Tynelius P, Rasmussen F, Tan Q, Zhang D, Pang Z, Magnusson PKE, Pedersen NL, Dahl Aslan AK, Hwang AE, Mack TM, Krueger RF, McGue M, Pahlen S, Brandt I, Nilsen TS, Harris JR, Martin NG, Medland SE, Montgomery GW, Willemsen G, Bartels M, van Beijsterveldt CEM, Franz CE, Kremen WS, Lyons MJ, Silberg JL, Maes HH, Kandler C, Nelson TL, Whitfield KE, Corley RP, Huibregtse BM, Gatz M, Butler DA, Tarnoki AD, Tarnoki DL, Park HA, Lee J, Lee SJ, Sung J, Yokoyama Y, Sørensen TIA, Boomsma DI, Kaprio J. 2020. Genetic and environmental variation in educational attainment: an individual-based analysis of 28 twin cohorts. Scientific Reports, 12681, vol. 10(1). link> doi> link> full text>
    • Campbell P, Rathod-Mistry T, Marshall M, Bailey J, Chew-Graham CA, Croft P, Frisher M, Hayward R, Negi R, Singh S, Tantalo-Baker S, Tarafdar S, Babatunde OO, Robinson L, Sumathipala A, Thein N, Walters K, Weich S, Jordan KP. 2021. Markers of dementia-related health in primary care electronic health records. Aging Ment Health, 1452-1462, vol. 25(8). link> doi> full text>
    • Prior JA, Paskins Z, Whittle R, Abdul-Sultan A, Chew-Graham CA, Muller S, Bajpai R, Shepherd TA, Sumathipala A, Mallen CD. 2021. Rheumatic Conditions as Risk Factors for Self-Harm: A Retrospective Cohort Study. Arthritis Care Res (Hoboken), 130-137, vol. 73(1). link> doi> full text>
    • Gill A, Ranasinghe A, Sumathipala A, Fernando KA. 2020. Prevalence of mental health conditions amongst people living with human immunodeficiency virus in one of the most deprived localities in England. Int J STD AIDS, 619-626, vol. 31(7). link> doi> full text>
    • Sumathipala A. 2020. Ethics, a critical friend of research. Ceylon Journal of Science, 1, vol. 49(1). doi> link> full text>
    • Chen Y, Farooq S, Edwards J, Chew-Graham CA, Shiers D, Frisher M, Hayward R, Sumathipala A, Jordan KP. 2019. Patterns of symptoms before a diagnosis of first episode psychosis: a latent class analysis of UK primary care electronic health records. BMC Med, 227, vol. 17(1). link> doi> full text>
    • Harber-Aschan L, Bakolis I, Glozier N, Ismail K, Jayaweera K, Pannala G, Pariante C, Rijsdijk F, Siribaddana S, Sumathipala A, Zavos H, Zunszain P, Hotopf M. 2019. Does the metabolic syndrome exist? The identification of cardio-metabolic profiles in a South Asian population study. link> doi>
    • Kan C, Jayaweera K, Adikari A, Siribaddana S, Zavos HMS, Aschan L, Sumathipala A, Hotopf M, Ismail K, Rijsdijk F. 2019. Genetic overlap between type 2 diabetes and depression in a Sri Lankan population twin sample. Psychosomatic Medicine. link> doi> full text>
    • Fernando B, King M, Sumathipala A. 2019. Advancing good governance in data sharing and biobanking - international aspects. doi>
    • Fernando B, King M, Sumathipala A. 2019. Advancing good governance in data sharing and biobanking - international aspects. Wellcome Open Res, 184, vol. 4. link> doi> full text>
    • Jayaweera K, Craig JM, Zavos HMS, Abeysinghe N, De Alwis S, Andras A, Dissanayake L, Dziedzic K, Fernando B, Glozier N, Hewamalage A, Ives J, Jordan KP, Kodituwakku G, Mallen C, Rahman O, Zafar S, Saxena A, Rijsdijk F, Saffery R, Simonoff E, Yusuf R, Sumathipala A, We would like to acknowledge the other members of the SEARCH Group. 2019. Protocol for establishing a child and adolescent twin register for mental health research and capacity building in Sri Lanka and other low and middle-income countries in South Asia. BMJ Open, e029332, vol. 9(10). link> doi> full text>
    • Silverwood V, Nash A, Chew-Graham CA, Walsh-House J, Sumathipala A, Bartlam B, Kingstone T. 2019. Healthcare professionals' perspectives on identifying and managing perinatal anxiety: a qualitative study. Br J Gen Pract, e768-e776, vol. 69(688). link> doi> full text>
    • Zavos HMS, Dalton B, Jayaweera K, Harber-Aschan L, Pannala G, Adikari A, Hatch SL, Siribaddana S, Sumathipala A, Hotopf M, Rijsdijk FV. 2020. The relationship between independent and dependent life events and depression symptoms in Sri Lanka: a twin and singleton study. Soc Psychiatry Psychiatr Epidemiol, 237-249, vol. 55(2). link> doi> full text>
    • Silventoinen K, Jelenkovic A, Yokoyama Y, Sund R, Sugawara M, Tanaka M, Matsumoto S, Bogl LH, Freitas DL, Maia JA, Hjelmborg JVB, Aaltonen S, Piirtola M, Latvala A, Calais-Ferreira L, Oliveira VC, Ferreira PH, Ji F, Ning F, Pang Z, Ordoñana JR, Sánchez-Romera JF, Colodro-Conde L, Burt SA, Klump KL, Martin NG, Medland SE, Montgomery GW, Kandler C, McAdams TA, Eley TC, Gregory AM, Saudino KJ, Dubois L, Boivin M, Brendgen M, Dionne G, Vitaro F, Tarnoki AD, Tarnoki DL, Haworth CMA, Plomin R, Öncel SY, Aliev F, Medda E, Nisticò L, Toccaceli V, Craig JM, Saffery R, Siribaddana SH, Hotopf M, Sumathipala A, Rijsdijk F, Jeong H-U, Spector T, Mangino M, Lachance G, Gatz M, Butler DA, Gao W, Yu C, Li L, Bayasgalan G, Narandalai D, Harden KP, Tucker-Drob EM, Christensen K, Skytthe A, Kyvik KO, Derom CA, Vlietinck RF, Loos RJF, Cozen W, Hwang AE, Mack TM, He M, Ding X, Silberg JL, Maes HH, Cutler TL, Hopper JL, Magnusson PKE, Pedersen NL, Dahl Aslan AK, Baker LA, Tuvblad C, Bjerregaard-Andersen M, Beck-Nielsen H, Sodemann M, Ullemar V, Almqvist C, Tan Q, Zhang D, Swan GE, Krasnow R, Jang KL, Knafo-Noam A, Mankuta D, Abramson L, Lichtenstein P, Krueger RF, McGue M, Pahlen S, Tynelius P, Rasmussen F, Duncan GE, Buchwald D, Corley RP, Huibregtse BM, Nelson TL, Whitfield KE, Franz CE, Kremen WS, Lyons MJ, Ooki S, Brandt I, Nilsen TS, Harris JR, Sung J, Park HA, Lee J, Lee SJ, Willemsen G, Bartels M, van Beijsterveldt CEM, Llewellyn CH, Fisher A, Rebato E, Busjahn A, Tomizawa R, Inui F, Watanabe M, Honda C, Sakai N, Hur Y-M, Sørensen TIA, Boomsma DI, Kaprio J. 2019. The CODATwins Project: The Current Status and Recent Findings of COllaborative Project of Development of Anthropometrical Measures in Twins. Twin Res Hum Genet, 800-808, vol. 22(6). link> doi> full text>
    • Herle M, Kan C, Jayaweera K, Asikari A, Siribaddana S, Zavos H, Sumathipala A, Ismail K, Hotopf M, Treasure J, Rijsdijk F. 2019. The association between emotional eating and depressive symptoms: a population-based twin study in Sri Lanka. Global Health, Epidemiology and Genomics, 699, vol. 4(e4). link> doi> link> full text>
    • Dorrington S, Zavos H, Ball H, McGuffin P, Sumathipala A, Siribaddana S, Rijsdijk F, Hatch SL, Hotopf M. 2019. Family functioning, trauma exposure and PTSD: A cross sectional study. J Affect Disord, 645-652, vol. 245. link> doi> full text>
    • Schokman A, Bin YS, Simonelli G, Pye J, Morris R, Sumathipala A, Siribaddana SH, Hotopf M, Rijsdijk F, Jayaweera K, Glozier N. 2018. Agreement between subjective and objective measures of sleep duration in a low-middle income country setting. Sleep Health, 543-550, vol. 4(6). link> doi> full text>
    • Jayaweera K, Aschan L, Pannala G, Adikari A, Glozier N, Ismail K, Pariante CM, Rijsdijk F, Siribaddana S, Zavos HMS, Zunszain PA, Sumathipala A, Hotopf M. 2018. The Colombo Twin and Singleton Follow-up Study: a population based twin study of psychiatric disorders and metabolic syndrome in Sri Lanka. BMC Public Health, 145, vol. 18(1). link> doi> full text>
    • Ball HA, Sumathipala A, Siribaddana SH, Kovas Y, Glozier N, McGuffin P, Hotopf M. 2010. Aetiology of fatigue in Sri Lanka and its overlap with depression. Br J Psychiatry, 106-113, vol. 197(2). link> doi>
    • Sumathipala A, Siribaddana S, Samaraweera S, Dayaratne DARK. 2003. Capacity building through multi-disciplinary research: a report from Sri Lanka. Br J Psychiatry, 457-458, vol. 183. link> doi>
    • Sumathipala A, Siribaddana S, Abeysingha MRN, De Silva P, Dewey M, Prince M, Mann AH. 2008. Cognitive-behavioural therapy v. structured care for medically unexplained symptoms: randomised controlled trial. Br J Psychiatry, 51-59, vol. 193(1). link> doi>
    • Sumathipala A, Siribaddana SH, Bhugra D. 2004. Culture-bound syndromes: the story of dhat syndrome. Br J Psychiatry, 200-209, vol. 184. link> doi>
    • Ball HA, Sumathipala A, Siribaddana SH, Kovas Y, Glozier N, McGuffin P, Hotopf M. 2009. Genetic and environmental contributions to depression in Sri Lanka. Br J Psychiatry, 504-509, vol. 195(6). link> doi>
    • Patel V and Sumathipala A. 2001. International representation in psychiatric literature: survey of six leading journals. Br J Psychiatry, 406-409, vol. 178. link> doi>
    • Sumathipala A, Nadkarni A, Siriwardhana C. 2015. Reflections on research and clinical collaborations between South Asia and the UK. BJPsych Int, 8-10, vol. 12(1). link> doi>
    • Sumathipala A, Siribaddana SH, Bhugra D. 2004. The continuing story of dhat syndrome - Reply. BRITISH JOURNAL OF PSYCHIATRY, 261-262, vol. 185. link> doi>
    • Tomenson B, Essau C, Jacobi F, Ladwig KH, Leiknes KA, Lieb R, Meinlschmidt G, McBeth J, Rosmalen J, Rief W, Sumathipala A, Creed F, EURASMUS Population Based Study Group. 2013. Total somatic symptom score as a predictor of health outcome in somatic symptom disorders. Br J Psychiatry, 373-380, vol. 203(5). link> doi>
    • Sumathipala A, Yelland L, Green D, Shepherd T, Jayaweera K, Ferreira P, Craig JM. 2018. Twins as Participants in Randomized Controlled Trials: A Review of Published Literature. Twin Res Hum Genet, 51-56, vol. 21(1). link> doi> full text>
    • Silventoinen K, Jelenkovic A, Latvala A, Sund R, Yokoyama Y, Ullemar V, Almqvist C, Derom CA, Vlietinck RF, Loos RJF, Kandler C, Honda C, Inui F, Iwatani Y, Watanabe M, Rebato E, Stazi MA, Fagnani C, Brescianini S, Hur Y-M, Jeong H-U, Cutler TL, Hopper JL, Busjahn A, Saudino KJ, Ji F, Ning F, Pang Z, Rose RJ, Koskenvuo M, Heikkilä K, Cozen W, Hwang AE, Mack TM, Siribaddana SH, Hotopf M, Sumathipala A, Rijsdijk F, Sung J, Kim J, Lee J, Lee S, Nelson TL, Whitfield KE, Tan Q, Zhang D, Llewellyn CH, Fisher A, Burt SA, Klump KL, Knafo-Noam A, Mankuta D, Abramson L, Medland SE, Martin NG, Montgomery GW, Magnusson PKE, Pedersen NL, Dahl Aslan AK, Corley RP, Huibregtse BM, Öncel SY, Aliev F, Krueger RF, McGue M, Pahlen S, Willemsen G, Bartels M, van Beijsterveldt CEM, Silberg JL, Eaves LJ, Maes HH, Harris JR, Brandt I, Nilsen TS, Rasmussen F, Tynelius P, Baker LA, Tuvblad C, Ordoñana JR, Sánchez-Romera JF, Colodro-Conde L, Gatz M, Butler DA, Lichtenstein P, Goldberg JH, Harden KP, Tucker-Drob EM, Duncan GE, Buchwald D, Tarnoki AD, Tarnoki DL, Franz CE, Kremen WS, Lyons MJ, Maia JA, Freitas DL, Turkheimer E, Sørensen TIA, Boomsma DI, Kaprio J. 2017. Education in Twins and Their Parents Across Birth Cohorts Over 100 years: An Individual-Level Pooled Analysis of 42-Twin Cohorts. Twin Res Hum Genet, 395-405, vol. 20(5). link> doi> full text>
    • Silventoinen K, Jelenkovic A, Sund R, Yokoyama Y, Hur Y-M, Cozen W, Hwang AE, Mack TM, Honda C, Inui F, Iwatani Y, Watanabe M, Tomizawa R, Pietiläinen KH, Rissanen A, Siribaddana SH, Hotopf M, Sumathipala A, Rijsdijk F, Tan Q, Zhang D, Pang Z, Piirtola M, Aaltonen S, Öncel SY, Aliev F, Rebato E, Hjelmborg JB, Christensen K, Skytthe A, Kyvik KO, Silberg JL, Eaves LJ, Cutler TL, Ordoñana JR, Sánchez-Romera JF, Colodro-Conde L, Song Y-M, Yang S, Lee K, Franz CE, Kremen WS, Lyons MJ, Busjahn A, Nelson TL, Whitfield KE, Kandler C, Jang KL, Gatz M, Butler DA, Stazi MA, Fagnani C, D'Ippolito C, Duncan GE, Buchwald D, Martin NG, Medland SE, Montgomery GW, Jeong H-U, Swan GE, Krasnow R, Magnusson PK, Pedersen NL, Dahl Aslan AK, McAdams TA, Eley TC, Gregory AM, Tynelius P, Baker LA, Tuvblad C, Bayasgalan G, Narandalai D, Spector TD, Mangino M, Lachance G, Burt SA, Klump KL, Harris JR, Brandt I, Nilsen TS, Krueger RF, McGue M, Pahlen S, Corley RP, Huibregtse BM, Bartels M, van Beijsterveldt CE, Willemsen G, Goldberg JH, Rasmussen F, Tarnoki AD, Tarnoki DL, Derom CA, Vlietinck RF, Loos RJ, Hopper JL, Sung J, Maes HH, Turkheimer E, Boomsma DI, Sørensen TI, Kaprio J. 2017. Differences in genetic and environmental variation in adult BMI by sex, age, time period, and region: an individual-based pooled analysis of 40 twin cohorts. The American Journal of Clinical Nutrition, 457-466, vol. 106(2). link> doi> full text>
    • Dutta R, Ball HA, Siribaddana SH, Sumathipala A, Samaraweera S, McGuffin P, Hotopf M. 2017. Genetic and other risk factors for suicidal ideation and the relationship with depression. Psychol Med, 2438-2449, vol. 47(14). link> doi> full text>
    • Bogl LH, Jelenkovic A, Vuoksimaa E, Ahrenfeldt L, Pietiläinen KH, Stazi MA, Fagnani C, D'Ippolito C, Hur Y-M, Jeong H-U, Silberg JL, Eaves LJ, Maes HH, Bayasgalan G, Narandalai D, Cutler TL, Kandler C, Jang KL, Christensen K, Skytthe A, Kyvik KO, Cozen W, Hwang AE, Mack TM, Derom CA, Vlietinck RF, Nelson TL, Whitfield KE, Corley RP, Huibregtse BM, McAdams TA, Eley TC, Gregory AM, Krueger RF, McGue M, Pahlen S, Willemsen G, Bartels M, van Beijsterveldt TCEM, Pang Z, Tan Q, Zhang D, Martin NG, Medland SE, Montgomery GW, Hjelmborg JVB, Rebato E, Swan GE, Krasnow R, Busjahn A, Lichtenstein P, Öncel SY, Aliev F, Baker LA, Tuvblad C, Siribaddana SH, Hotopf M, Sumathipala A, Rijsdijk F, Magnusson PKE, Pedersen NL, Aslan AKD, Ordoñana JR, Sánchez-Romera JF, Colodro-Conde L, Duncan GE, Buchwald D, Tarnoki AD, Tarnoki DL, Yokoyama Y, Hopper JL, Loos RJF, Boomsma DI, Sørensen TIA, Silventoinen K, Kaprio J. 2017. Does the sex of one's co-twin affect height and BMI in adulthood? A study of dizygotic adult twins from 31 cohorts. Biology of Sex Differences, 14, vol. 8. link> doi> full text>
    • Chew-Graham CA, Heyland S, Kingstone T, Shepherd T, Buszewicz M, Burroughs H, Sumathipala A. 2017. Medically unexplained symptoms: continuing challenges for primary care. Br J Gen Pract, 106-107, vol. 67(656). link> doi>
    • Sumathipala A. 2016. Genetic and environmental influences on adult human height across birth cohorts from 1886 to 1994. eLife. doi> link> full text>
    • Farooq S, Burns J, Sumathipala A, Naeem F. 2016. A global mental health fund for serious mental illness in low-income and middle-income countries. Lancet Psychiatry, 495-497, vol. 3(6). link> doi> full text>
    • Siriwardhana C, Adikari A, Jayaweera K, Abeyrathna B, Sumathipala A. 2016. Integrating mental health into primary care for post-conflict populations: a pilot study. Int J Ment Health Syst, 12, vol. 10. link> doi> full text>
    • Siriwardhana C, Adikari A, Pannala G, Roberts B, Siribaddana S, Abas M, Sumathipala A, Stewart R. 2015. Changes in mental disorder prevalence among conflict-affected populations: a prospective study in Sri Lanka (COMRAID-R). BMC Psychiatry, 424, vol. 15(1). link> doi> full text>
    • Wickramage K, Siriwardhana C, Vidanapathirana P, Weerawarna S, Jayasekara B, Pannala G, Adikari A, Jayaweera K, Peiris S, Siribaddana S, Sumathipala A. 2015. Risk of mental health and nutritional problems for left-behind children of international labor migrants. BMC Psychiatry, 412, vol. 15(1). link> doi> full text>
    • Craig JM, Segal NL, Umstad MP, Cutler TL, Keogh LA, Hopper JL, Rankin M, Denton J, Derom CA, Sumathipala A, Harris JR, International Society for Twin Studies (ISTS) and International Council of Multiple Birth Organisations (ICOMBO). 2015. Zygosity testing should be encouraged for all same-sex twins: FOR: A genetic test is essential to determine zygosity. BJOG, 1641, vol. 122(12). link> doi>
    • Jelenkovic A, Yokoyama Y, Sund R, Honda C, Bogl LH, Aaltonen S, Ji F, Ning F, Pang Z, Ordoñana JR, Sánchez-Romera JF, Colodro-Conde L, Burt SA, Klump KL, Medland SE, Montgomery GW, Kandler C, McAdams TA, Eley TC, Gregory AM, Saudino KJ, Dubois L, Boivin M, Tarnoki AD, Tarnoki DL, Haworth CMA, Plomin R, Öncel SY, Aliev F, Stazi MA, Fagnani C, D'Ippolito C, Craig JM, Saffery R, Siribaddana SH, Hotopf M, Sumathipala A, Rijsdijk F, Spector T, Mangino M, Lachance G, Gatz M, Butler DA, Bayasgalan G, Narandalai D, Freitas DL, Maia JA, Harden KP, Tucker-Drob EM, Kim B, Chong Y, Hong C, Shin HJ, Christensen K, Skytthe A, Kyvik KO, Derom CA, Vlietinck RF, Loos RJF, Cozen W, Hwang AE, Mack TM, He M, Ding X, Chang B, Silberg JL, Eaves LJ, Maes HH, Cutler TL, Hopper JL, Aujard K, Magnusson PKE, Pedersen NL, Aslan AKD, Song Y-M, Yang S, Lee K, Baker LA, Tuvblad C, Bjerregaard-Andersen M, Beck-Nielsen H, Sodemann M, Heikkilä K, Tan Q, Zhang D, Swan GE, Krasnow R, Jang KL, Knafo-Noam A, Mankuta D, Abramson L, Lichtenstein P, Krueger RF, McGue M, Pahlen S, Tynelius P, Duncan GE, Buchwald D, Corley RP, Huibregtse BM, Nelson TL, Whitfield KE, Franz CE, Kremen WS, Lyons MJ, Ooki S, Brandt I, Nilsen TS, Inui F, Watanabe M, Bartels M, van Beijsterveldt TCEM, Wardle J, Llewellyn CH, Fisher A, Rebato E, Martin NG, Iwatani Y, Hayakawa K, Sung J, Harris JR, Willemsen G, Busjahn A, Goldberg JH, Rasmussen F, Hur Y-M, Boomsma DI, Sørensen TIA, Kaprio J, Silventoinen K. 2015. Zygosity Differences in Height and Body Mass Index of Twins From Infancy to Old Age: A Study of the CODATwins Project. Twin Res Hum Genet, 557-570, vol. 18(5). link> doi>
    • Green DJ, Hofberg K, Carr C, Fanneran T, Sumathipala A. 2015. A 10-year history of perinatal care at the Brockington Mother and Baby Unit Stafford. Archives of women's mental health, 507-513, vol. 19(3). doi> link>
    • Silventoinen K, Jelenkovic A, Sund R, Honda C, Aaltonen S, Yokoyama Y, Tarnoki AD, Tarnoki DL, Ning F, Ji F, Pang Z, Ordoñana JR, Sánchez-Romera JF, Colodro-Conde L, Burt SA, Klump KL, Medland SE, Montgomery GW, Kandler C, McAdams TA, Eley TC, Gregory AM, Saudino KJ, Dubois L, Boivin M, Haworth CMA, Plomin R, Öncel SY, Aliev F, Stazi MA, Fagnani C, D'Ippolito C, Craig JM, Saffery R, Siribaddana SH, Hotopf M, Sumathipala A, Spector T, Mangino M, Lachance G, Gatz M, Butler DA, Bayasgalan G, Narandalai D, Freitas DL, Maia JA, Harden KP, Tucker-Drob EM, Christensen K, Skytthe A, Kyvik KO, Hong C, Chong Y, Derom CA, Vlietinck RF, Loos RJF, Cozen W, Hwang AE, Mack TM, He M, Ding X, Chang B, Silberg JL, Eaves LJ, Maes HH, Cutler TL, Hopper JL, Aujard K, Magnusson PKE, Pedersen NL, Aslan AKD, Song Y-M, Yang S, Lee K, Baker LA, Tuvblad C, Bjerregaard-Andersen M, Beck-Nielsen H, Sodemann M, Heikkilä K, Tan Q, Zhang D, Swan GE, Krasnow R, Jang KL, Knafo-Noam A, Mankuta D, Abramson L, Lichtenstein P, Krueger RF, McGue M, Pahlen S, Tynelius P, Duncan GE, Buchwald D, Corley RP, Huibregtse BM, Nelson TL, Whitfield KE, Franz CE, Kremen WS, Lyons MJ, Ooki S, Brandt I, Nilsen TS, Inui F, Watanabe M, Bartels M, van Beijsterveldt TCEM, Wardle J, Llewellyn CH, Fisher A, Rebato E, Martin NG, Iwatani Y, Hayakawa K, Rasmussen F, Sung J, Harris JR, Willemsen G, Busjahn A, Goldberg JH, Boomsma DI, Hur Y-M, Sørensen TIA, Kaprio J. 2015. The CODATwins Project: The Cohort Description of Collaborative Project of Development of Anthropometrical Measures in Twins to Study Macro-Environmental Variation in Genetic and Environmental Effects on Anthropometric Traits. Twin Res Hum Genet, 348-360, vol. 18(4). link> doi>
    • Zavos HMS, Siribaddana S, Ball HA, Lynskey MT, Sumathipala A, Rijsdijk FV, Hotopf M. 2015. The prevalence and correlates of alcohol use and alcohol use disorders: a population based study in Colombo, Sri Lanka. BMC Psychiatry, 158, vol. 15. link> doi> full text>
    • Siriwardhana C, Wickramage K, Siribaddana S, Vidanapathirana P, Jayasekara B, Weerawarna S, Pannala G, Adikari A, Jayaweera K, Pieris S, Sumathipala A. 2015. Common mental disorders among adult members of 'left-behind' international migrant worker families in Sri Lanka. BMC Public Health, 299, vol. 15. link> doi> full text>
    • Siriwardhana C, Adikari A, Pannala G, Roberts B, Siribaddana S, Abas M, Sumathipala A, Stewart R. 2015. Changes in mental disorder prevalence among conflict-affected populations: a prospective study in Sri Lanka (COMRAID-R). BMC Psychiatry, 41, vol. 15. link> doi> full text>
    • Wickramage K, Siriwardhana C, Vidanapathirana P, Weerawarna S, Jayasekara B, Pannala G, Adikari A, Jayaweera K, Peiris S, Siribaddana S, Sumathipala A. 2015. Risk of mental health and nutritional problems for left-behind children of international labor migrants. BMC Psychiatry, 39, vol. 15. link> doi> full text>
    • Keraite A, Sumathipala A, Siriwardhana C, Morgan C, Reininghaus U. 2016. Exposure to conflict and disaster: A national survey on the prevalence of psychotic experiences in Sri Lanka. Schizophr Res, 79-85, vol. 171(1-3). link> doi>
    • Siriwardhana C, Abas M, Siribaddana S, Sumathipala A, Stewart R. 2015. Dynamics of resilience in forced migration: a 1-year follow-up study of longitudinal associations with mental health in a conflict-affected, ethnic Muslim population. BMJ Open, e006000, vol. 5(2). link> doi> full text>
    • Tol WA, Barbui C, Bisson J, Cohen J, Hijazi Z, Jones L, de Jong JTVM, Magrini N, Omigbodun O, Seedat S, Silove D, Souza R, Sumathipala A, Vijayakumar L, Weissbecker I, Zatzick D, van Ommeren M. 2014. World Health organization guidelines for management of acute stress, PTSD, and bereavement: key challenges on the road ahead. PLoS Med, e1001769, vol. 11(12). link> doi> full text>
    • Buchwald D, Kaprio J, Hopper JL, Sung J, Goldberg J, Fortier I, Busjhan A, Sumathipala A, Cozen W, Mack T, Craig JM, Harris JR. 2014. International Network of Twin Registries (INTR): Building a Platform for International Collaboration. Twin research and human genetics : the official journal of the International Society for Twin Studies, 574-577, vol. 17(6). doi>
    • Dorrington S, Zavos H, Ball H, McGuffin P, Rijsdijk F, Siribaddana S, Sumathipala A, Hotopf M. 2014. Trauma, post-traumatic stress disorder and psychiatric disorders in a middle-income setting: prevalence and comorbidity. Br J Psychiatry, 383-389, vol. 205(5). link> doi>
    • Sumathipala A. 2014. Development of metaphors to explain cognitive behavioural principles for patients with medically unexplained symptoms in Sri Lanka. International Journal of Social Psychiatry, 117-124, vol. 60(2). link> doi> link>
    • Siriwardhana C, Adikari A, Van Bortel T, McCrone P, Sumathipala A. 2013. An intervention to improve mental health care for conflict-affected forced migrants in low-resource primary care settings: a WHO MhGAP-based pilot study in Sri Lanka (COM-GAP study). Trials, 423, vol. 14. link> doi>
    • Siriwardhana C, Wickramage K, Jayaweera K, Adikari A, Weerawarna S, Van Bortel T, Siribaddana S, Sumathipala A. 2015. Impact of economic labour migration: a qualitative exploration of left-behind family member perspectives in Sri Lanka. J Immigr Minor Health, 885-894, vol. 17(3). link> doi>
    • Siriwardhana C, Pannala G, Siribaddana S, Sumathipala A, Stewart R. 2013. Impact of exposure to conflict, tsunami and mental disorders on school absenteeism: findings from a national sample of Sri Lankan children aged 12-17 years. BMC Public Health, 560, vol. 13. link> doi>
    • Siriwardhana C, Adikari A, Pannala G, Siribaddana S, Abas M, Sumathipala A, Stewart R. 2013. Prolonged internal displacement and common mental disorders in Sri Lanka: the COMRAID study. PLoS One, e64742, vol. 8(5). link> doi>
    • Siriwardhana C, Adikari A, Jayaweera K, Sumathipala A. 2013. Ethical challenges in mental health research among internally displaced people: ethical theory and research implementation. BMC Med Ethics, 13, vol. 14. link> doi>
    • Ekanayake S, Prince M, Sumathipala A, Siribaddana S, Morgan C. 2013. "We lost all we had in a second": coping with grief and loss after a natural disaster. World Psychiatry, 69-75, vol. 12(1). link> doi>
    • Shidhaye R, Mendenhall E, Sumathipala K, Sumathipala A, Patel V. 2013. Association of somatoform disorders with anxiety and depression in women in low and middle income countries: a systematic review. Int Rev Psychiatry, 65-76, vol. 25(1). link> doi>
    • Sumathipala A, Siribaddana S, Hotopf M, McGuffin P, Glozier N, Ball H, Kovas Y, Rijsdijk F, Yatawara L, Pariante C, Zavos H, Siriwardhana C, Pannala G, Jayaweera K, Adikari A, Gunewardane D. 2013. The Sri Lankan Twin Registry: 2012 update. Twin Res Hum Genet, 307-312, vol. 16(1). link> doi>
    • Lasalvia A, Zoppei S, Van Bortel T, Bonetto C, Cristofalo D, Wahlbeck K, Vassuer Bascel S, Van Audenhove C, van Weeghel J, Reneses B, Germanavicius A, Economou M, Lanfredi M, Ando S, Sartorius N, Lopez-Ibor JJ, Thornicroft G, Sumathipala A. 2012. Global pattern of experienced and anticipated discrimination reported by people with major depressive disorder: a cross-sectional survey. doi>
    • Allden K, Jones L, Weissbecker I, Wessells M, Bolton P, Betancourt TS, Hijazi Z, Galappatti A, Yamout R, Patel P, Sumathipala A. 2009. Mental health and psychosocial support in crisis and conflict: report of the Mental Health Working Group. Prehosp Disaster Med, s217-s227, vol. 24 Suppl 2. link> doi>
    • Zavos HMS, Kovas Y, Ball HA, Ball D, Siribaddana SH, Glozier N, Sumathipala A, McGuffin P, Hotopf M, Rijsdijk FV. 2012. Genetic and environmental etiology of nicotine use in Sri Lankan male twins. Behav Genet, 798-807, vol. 42(5). link> doi>
    • Sumathipala A, De Silva N, Siribaddana SH, Abeysingha MR, Fernando DJ. 2000. Cross-cultural adaptation and preliminary validation of a zygosity determination questionnaire for twins in Sri Lanka. Twin Res, 205-212, vol. 3(4). link> doi>
    • Ball HA, Siribaddana SH, Sumathipala A, Kovas Y, Glozier N, Rijsdijk F, McGuffin P, Hotopf M. 2011. Genetic and environmental contributions to the overlap between psychological, fatigue and somatic symptoms: a twin study in Sri Lanka. Twin Res Hum Genet, 53-63, vol. 14(1). link> doi>
    • Siribaddana SH, Siriwardane WD, Hewage SN, Athukorale ADMD, Sumathipala A, Hotopf M. 2006. Update from Sri Lankan Twin Registry: establishment of a population-based twin register and ongoing project on common mental disorders, alcohol abuse and suicidal ideations. Twin Res Hum Genet, 868-874, vol. 9(6). link> doi>
    • Blignault I, Manicavasagar V, Parker G, Wijeratne C, Sumathipala A. 2012. Building capacity in identification and management of mood disorders: an Australia-Sri Lanka collaboration. Australas Psychiatry, 53-56, vol. 20(1). link> doi>
    • Sumathipala A and Jafarey A. 2012. Ethics of disaster management, clinical care and research. Asian Bioethics Review, 105-107, vol. 2(2).
    • Sumathipala A and Siribaddana S. 2002. Psychological distress among university students. Ceylon Med J, 74-75, vol. 47(2). link> doi>
    • Sumathipala A, Siribaddana S, De Silva N. 2003. Qualitative research. Ceylon Med J, 136-139, vol. 48(4). link> doi>
    • Siriwardhana C, Sumathipala A, Siribaddana S, Samaraweera S, Abeysinghe N, Prince M, Hotopf M. 2011. Reducing the scarcity in mental health research from low and middle income countries: a success story from Sri Lanka. Int Rev Psychiatry, 77-83, vol. 23(1). link> doi>
    • Samaraweera S, Sumathipala A, Siribaddana S, Sivayogan S, Bhugra D. 2008. Completed suicide among Sinhalese in Sri Lanka: a psychological autopsy study. Suicide Life Threat Behav, 221-228, vol. 38(2). link> doi>
    • Ball HA, Siribaddana SH, Kovas Y, Glozier N, McGuffin P, Sumathipala A, Hotopf M. 2010. Epidemiology and symptomatology of depression in Sri Lanka: a cross-sectional population-based survey in Colombo District. J Affect Disord, 188-196, vol. 123(1-3). link> doi>
    • Sumathipala A, Jafarey A, De Castro L, Ahmed A, Marcer D, Srinivasan S, Kumar N, Siribaddana S, Sautareo S, Bhan A, Waidyaratne D, Beneragama S, Jayasekera C, Edirisungha S, Siriwardena C. 2010. Ethical issues in a post-disaster clinical interventions and research: a developing world perspective. Key findings from a drafting and consensus generation meeting of the working group on disaster research and ethics. Asian Bioethics Review, 224-242, vol. 2(2).
    • Sumathipala A, Siribaddana S, Hewage S, Lekamwattage M, Athukorale M, Siriwardhana C, Munasinghe K, Sumathipala K, Murray J, Prince M. 2010. Understanding of research: a Sri Lankan perspective. BMC Med Ethics, 7, vol. 11. link> doi>
    • Ball HA, Siribaddana SH, Sumathipala A, Kovas Y, Glozier N, McGuffin P, Hotopf M. 2010. Environmental exposures and their genetic or environmental contribution to depression and fatigue: a twin study in Sri Lanka. BMC Psychiatry, 13, vol. 10. link> doi>
    • Samaraweera S, Sumathipala A, Siribaddana S, Sivayogan S, Bhugra D. 2010. Prevalence of suicidal ideation in Sri Lanka. Crisis, 30-35, vol. 31(1). link> doi>
    • Sumathipala A, Siribaddana S, Perera C. 2006. Management of dead bodies as a component of psychosocial interventions after the tsunami: a view from Sri Lanka. Int Rev Psychiatry, 249-257, vol. 18(3). link> doi>
    • Sumathipala A, Siribaddana S, Hewege S, Sumathipala K, Prince M, Mann A. 2008. Understanding the explanatory model of the patient on their medically unexplained symptoms and its implication on treatment development research: a Sri Lanka Study. BMC Psychiatry, 54, vol. 8. link> doi>
    • Siribaddana SH, Ball HA, Hewage SN, Glozier N, Kovas Y, Dayaratne D, Sumathipala A, McGuffin P, Hotopf M. 2008. Colombo Twin and Singleton Study (CoTASS): a description of a population based twin study of mental disorders in Sri Lanka. BMC Psychiatry, 49, vol. 8. link> doi>
    • Sumathipala A, Siribaddana S, Hewage S, Lekamwattage M, Athukorale M, Siriwardhana C, Murray J, Prince M. 2008. Informed consent in Sri Lanka: a survey among ethics committee members. BMC Med Ethics, 10, vol. 9. link> doi>
    • Sumathipala A, Siribaddana S, Hewege S, Lekamwattage M, Athukorale M, Siriwardhana C, Murray J, Prince M. 2008. Ethics Review Committee approval and informed consent: an analysis of biomedical publications originating from Sri Lanka. BMC Med Ethics, 3, vol. 9. link> doi>
    • Sumathipala A, Siribaddana S, Hewege S, Lekemwattage M, Athukorale M, Sisirawadena C, Murray JA, Prince M. 2008. Ethical approval and informed consent: analysis of biomedical publications originating from Sri Lanka. BMC Medical Ethics, vol. 3(9). doi>
    • Sumathipala A, Siribaddana S, Prince M, Mann AH. 2008. Understanding the cognitive representation of medically unexplained symptoms and its implication on treatment development research: A Sri Lanka study. BMC Psychiatry, vol. 54(8).
    • Sumathipala A. 2007. What is the evidence for the efficacy of treatments for somatoform disorders? A critical review of previous intervention studies. Psychosom Med, 889-900, vol. 69(9). link> doi>
    • Samaraweera S, Sivayogan S, Sumathipala A, Bhugra D, Siribaddana S. 2007. RCT of cognitive behaviour therapy in active suicidal ideation-as feasibility study in Sri Lanka. EUROPEAN JOURNAL OF PSYCHIATRY, 175-178, vol. 21(3). link>
    • Sumathipala A. 2006. Bioethics in Sri Lanka. East Mediterr Health J, S73-S79, vol. 12 Suppl 1. link>
    • Sumathipala A, Siribaddana S, Perera C. 2006. Identification and management of dead bodies as a component of psychosocial interventions after the Tsunami; a view from Sri Lanka. International Review in Psychiatry, 249-257, vol. 18(3).
    • Patel V and Sumathipala A. 2006. Psychological approaches to somatisation in developing countries. Advances in Psychiatric Treatment, 54-62, vol. 12.
    • Sumathipala A and Siribaddana S. 2005. Research and clinical ethics after the tsunami: Sri Lanka. Lancet, 1418-1420, vol. 366(9495). link> doi>
    • Sumathipala A, Siribaddana S, Patel V. 2004. Under-representation of developing countries in the research literature: ethical issues arising from a survey of five leading medical journals. BMC Med Ethics, E5, vol. 5. link> doi>
    • Sumathipala A, Siribaddana S, Samaraweera SD. 2004. Do patients volunteer their life weariness and suicidal ideations? A Sri Lankan study. Crisis, 103-107, vol. 25(3). link> doi>
    • Sumathipala A and Siribaddana S. 2004. Revisiting "freely given informed consent" in relation to the developing world: role of an ombudsman. Am J Bioeth, W1-W7, vol. 4(3). link> doi>
    • Sumathipala A, Siribaddana SH, Abeysingha NMR, De Silva N, Fernando DJS, Dayaratne DARK, De Silva D, Warnasuriya ND, Hotopf M. 2003. Challenges in recruiting older twins for the Sri Lankan Twin Registry. TWIN RESEARCH, 67-71, vol. 6(1). link> doi>
    • Sumathipala A, Siribaddana SH, Abeysingha NMR, De Silva N, Fernando DJS, Dayaratne DARK, De Silva D, Warnasuriya ND, Hotopf M. 2003. Challenges in recruiting older twins for the Sri Lankan twin registry. Twin Res, 67-71, vol. 6(1). link> doi>
    • Sumathipala A, Siribaddana S, De Silva N. 2003. Qualitative research, a review. 136-139, vol. 48(4).
    • Sumathipala A, Siribaddana S, De Silva N, Fernando D, Abeysingha N, Dayaratne R, De Silva D, Warnasuriya N, Hotopf M. 2002. Sri Lankan Twin Registry. Twin Res, 424-426, vol. 5(5). link> doi>
    • Sumathipala A, Siribaddana SH, De Silva N, Abeysingha NM, Sivayogam S, Fernando DJ. 2001. Feasibility of using different approaches for recruiting younger twins to establish a population based twin register in Sri Lanka. Twin Res, 459-463, vol. 4(6). link> doi>
    • Sumathipala A, Hewege S, Hanwella R, Mann AH. 2001. Cognitive behavioural therapy reduced distress and doctor visits in patients with medically unexplained symptoms. Evidence based Mental Health, 22, vol. 4(1).
    • Sumathipala A, Fernando DJ, Siribaddana SH, Abeysingha MR, Jayasekare RW, Dissanayake VH, De Silva N. 2000. Establishing a twin register in Sri Lanka. Twin Res, 202-204, vol. 3(4). link> doi>
    • Sumathipala A, Hewege S, Hanwella R, Mann AH. 2000. Randomized controlled trial of cognitive behaviour therapy for repeated consultations for medically unexplained complaints: a feasibility study in Sri Lanka. Psychol Med, 747-757, vol. 30(4). link> doi>
    • Sumathipala A. 2000. New approach to translating instruments for cross-cultural research: a combined qualitative and quantitative approach for translation and consensus generation. International Journal of Methods in Psychiatric Research, 87-95, vol. 9(2).
    • Sumathipala A, Hewege S, Hanwella R, Mann AH. 2000. Randomised controlled trial of cognitive behaviour therapy for repeated consultations for medically unexplained complaints: a feasibility study in Sri Lanka. Psychological Medicine, 747-757, vol. 30.
    • Patel V and Sumathipala A. 1999. Methods used for suicide vary between regions in the developing world. BMJ, 259, vol. 318(7178). link> doi>
    • Sumathipala A. 1997. Textbook of psychiatry. BEHAVIOUR RESEARCH AND THERAPY, 1056, vol. 35(11). link> doi>
    • Sumathipala A and Hanwella R. 1996. Evolution of psychiatric care - a spiral model. Psychiatric Bulletin, 561-563, vol. 20.

    Chapters

    • Sumathipala A and Fernando B. 2014. Ethical issues in global mental health trials. In Global Mental Health Trials. Oxford University Press.
    • Sumathipala A. 2014. Research Infrastructure. In Essentials of Global Mental Health. Cambridge University Press.
    • Sumathipala A. 2013. When relief comes from a different culture. In Ethical issues in providing healthcare during disasters. Springer.
    • Sumathipala A. 2012. Psychiatric emergencies in disaster situations. In Emergencies in Psychiatry in low and middle income countries. Baywood Books.
    • Sumathipala A, Creed F, Lee S. 2011. Cultural aspect of medically unexplained symptoms. In A textbook on improving the management of patients with medically unexplained symptoms. EACLPP.
    • Sumathipala A. 2008. What is the evidence for efficacy of treatment for somatoform disorders? Somatic presentation of mental disorders. In Monograph. American Psychiatric Association.
    • Sumathipala A, Bughra D, Siribaddana S. 2007. Culture Bound Syndromes: a re-evaluation. In Textbook of cultural psychiatry. Cambridge University Press.
    • Sumathipala A, Patel V, Khan M. 2006. Mental Health in South Asia. In Textbook of culture and mental health disorder. A comprehensive text book. Hodder Arnold.
    • Sumathipala A. 2005. Concepts of medically unexplained symptoms in relation to mind body dualism. Chapter 1: Somatization and Conversion Disorders. In Somatoform Disorders, WPA Series Evidence and Experience in Psychiatry Volume 9. Wiley.

    Other

    • Prior J, Whittle R, Abdul-Sultan A, Chew-Graham C, Sumathipala A, Sheperd T, Mallen C, Paskins Z. 2018. INCREASED RISK OF SELF-HARM IN PATIENTS WITH OSTEOPOROSIS: A UK POPULATION STUDY. OSTEOPOROSIS INTERNATIONAL (pp. 625-626, vol. 29). link>
    • Thomas A, Papoutsidakis N, Sumathipala A, Hu X, Fangyong L, Spatz E, Jacoby D. 2018. Medical Insurance Type and Team-Based Expert Care Affect All-Cause Mortality in Hypertrophic Cardiomyopathy Patients. CIRCULATION (vol. 138). link>
    • Kan C, Herle M, Jayaweera K, Asikari A, Rajarata SS, Zavos H, Sumathipala A, Ismail K, Hotopf M, Treasure J, Rijsdijk F. 2017. Sex differences in cognitive restraint and body mass index: the COTASS-2 study. BEHAVIOR GENETICS (p. 716, vol. 47). link>
    • Dorrington S, Zavos H, Ball H, McGuffin P, Sumathipala A, Siribaddana S, Rijsdijk F, Hatch SL, Hotopf M. 2017. Family functioning, trauma exposure and PTSD in a middle-income community sample. EUROPEAN PSYCHIATRY (p. S157, vol. 41). link> doi>
    • Ball H, Dutta R, Sumathipala A, Siribaddana S, Hotopf M, McGuffin P. 2012. GENETIC AND ENVIRONMENTAL CONTRIBUTIONS TO SUICIDAL IDEATION, AND RELATIONSHIP WITH DEPRESSION: A TWIN STUDY IN SRI LANKA. JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY (vol. 83). link> doi>
    • Ball HA, Siribaddana S, Sumathipala A, Hotopf M, McGuffin P. 2007. The heritability of depressive tendency in a Sri Lankan twin sample, using an age-dependent categorical phenotype. BEHAVIOR GENETICS (p. 736, vol. 37). link>

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