Biography

Ram joined the Research Institute for Primary Care and Health Sciences in January 2019, and has an active research and teaching role within the university. Prior to this position, he worked at the Centre for Population Health Sciences, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.

Ram has a BSc in Statistics and Mathematics from the University of Lucknow and an MSc in Health Statistics (or Medical Statistics) from the Banaras Hindu University. He later completed his PhD (Medical Statistics) at the National Institute of Medical Statistics, Guru Gobind Singh Indraprastha University, New Delhi, India in survival estimation of HIV/AIDS on antiretroviral therapy and predictive performance survival models for censored data. He continues to work in the field of cross-domain applications of the statistical and epidemiological methodologies with a particular interest in designing and evaluation of case-control/ cohort studies, evidence synthesis methods, Bayesian methods, and risk prediction modelling.

Research and scholarship

My research interests are broad and cover

  • Prognostic research
  • Survival analytic methods
  • Quantitative epidemiology
  • Bayesian methods in meta-analysis
  • Statistical methodologies in evidence synthesis
  • Statistical modelling
  • Complex data analysis
  • Research designs in epidemiological studies

Teaching

He enjoys teaching/ discussing statistics and epidemiological methods to undergraduate and graduate students.

Previously, he was teaching biostatistical methods and basic epidemiology modules to graduate students at Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore. He has also served as an Assistant Professor of Biostatistics at the Department of Community Medicine in Army College of Medical Sciences, New Delhi, India where he was involved in teaching statistical methods to undergraduate medical students.

Further information

  • Fellow of the Royal Statistical Society (RSS)
  • Life member of the International Epidemiological Association (IEA) 
  • Academic editor PLoS One 
  • Associate editor BMC Rheumatology
  • Statistical editor to Cochrane Colorectal Cancer Group (CCCG)
  • Member of the Cochrane Statistical Methodology Group (SMG) 
  • Life-member of the Indian Society of Medical Statistics (ISMS)
  • Life-member of the Indian Bayesian Society (IBS)
  • Life-member of the Indian Public Health Association (IPHA)
  • Statistical reviewer to many International Journals

Selected Publications

  • Singh RK, Bajpai R, Kaswan P. 2021. COVID-19 pandemic and psychological wellbeing among health care workers and general population: A systematic-review and meta-analysis of the current evidence from India. Clinical Epidemiology and Global Health, 1-9, vol. 11. doi> link> full text>
  • Navarro CLA, Damen J, Takada T, Dhiman P, Collins GS, Ma J, Bajpai R, Riley RD, Hooft L, Moons KG. 2021. Why are Machine Learning-based prediction models still unpopular in clinical practice?. Diagnostic and Prognostic Research. doi> link> full text>
  • Bajpai R and Chaturvedi HK. 2021. Toward a More Nuanced Interpretation of Statistical Significance in Biomedical Research. Asian Journal of Oncology. doi> link> full text>
  • Bajpai R, Muller S, Mallen C, Watson L, Richette P, Hider SL, Roddy E. 2021. Onset of comorbidities and flare patterns within pre-existing morbidity clusters in people with gout: 5-year primary care cohort study. Rheumatology (Oxford). link> doi> full text>
  • Nazeha N, Sathish T, Soljak M, Dunleavy G, Visvalingam N, Divakar U, Bajpai RC, Soh CK, Christopoulos G, Car J. 2021. A Comparative Study of International and Asian Criteria for Overweight or Obesity at Workplaces in Singapore. Asia Pac J Public Health, 1010539521998855. link> doi>

Full Publications Listshow

Journal Articles

  • Singh RK, Bajpai R, Kaswan P. 2021. COVID-19 pandemic and psychological wellbeing among health care workers and general population: A systematic-review and meta-analysis of the current evidence from India. Clinical Epidemiology and Global Health, 1-9, vol. 11. doi> link> full text>
  • Bajpai R and Chaturvedi HK. 2021. Toward a More Nuanced Interpretation of Statistical Significance in Biomedical Research. Asian Journal of Oncology. doi> link> full text>
  • Bajpai R, Muller S, Mallen C, Watson L, Richette P, Hider SL, Roddy E. 2021. Onset of comorbidities and flare patterns within pre-existing morbidity clusters in people with gout: 5-year primary care cohort study. Rheumatology (Oxford). link> doi> full text>
  • Nazeha N, Sathish T, Soljak M, Dunleavy G, Visvalingam N, Divakar U, Bajpai RC, Soh CK, Christopoulos G, Car J. 2021. A Comparative Study of International and Asian Criteria for Overweight or Obesity at Workplaces in Singapore. Asia Pac J Public Health, 1010539521998855. link> doi>
  • Crocker TF, Clegg A, Riley RD, Lam N, Bajpai R, Jordão M, Patetsini E, Ramiz R, Ensor J, Forster A, Gladman JRF. 2021. Community-based complex interventions to sustain independence in older people, stratified by frailty: a protocol for a systematic review and network meta-analysis. BMJ Open, e045637, vol. 11(2). link> doi> full text>
  • Harpaz D, Bajpai R, Ng GJL, Soljak M, Marks RS, Cheung C, Arumugam TV, Quek AML, Tok AIY, Seet RCS. 2021. Blood biomarkers to detect new-onset atrial fibrillation and cardioembolism in ischemic stroke patients. Heart Rhythm. link> doi>
  • Mishra P, Parveen R, Bajpai R, Samim M, Agarwal NB. 2021. Impact of cardiovascular diseases on severity of COVID-19 patients: A systematic review. Ann Acad Med Singap, 52-60, vol. 50(1). link> doi> full text>
  • Ahmad I, Chufal KS, Bhatt CP, Miller AA, Bajpai R, Chowdhary RL, Pahuja AK, Chhabra A, Gairola M. 2020. Can the Choice of Radiotherapy Delivery Technique Influence Which Target Delineation Protocol to Use? A Plan-Quality-Based Analysis in Left Breast Cancer. Asian Journal of Oncology. doi>
  • Posadzki P, Pieper D, Bajpai R, Makaruk H, Könsgen N, Neuhaus AL, Semwal M. 2020. Exercise/physical activity and health outcomes: an overview of Cochrane systematic reviews. BMC Public Health, 1724, vol. 20(1). link> doi> full text>
  • Andaur Navarro CL, Damen JAAG, Takada T, Nijman SWJ, Dhiman P, Ma J, Collins GS, Bajpai R, Riley RD, Moons KG, Hooft L. 2020. Protocol for a systematic review on the methodological and reporting quality of prediction model studies using machine learning techniques. BMJ Open, e038832, vol. 10(11). link> doi> full text>
  • Ahmad I, Chufal KS, Bhatt CP, Miller AA, Bajpai R, Chhabra A, Chowdhary RL, Pahuja AK, Gairola M. 2020. Plan quality assessment of modern radiotherapy delivery techniques in left-sided breast cancer: an analysis stratified by target delineation guidelines. BJR|Open, 20200007, vol. 2(1). doi> full text>
  • Tay E and Bajpai R. 2021. Visual recovery after small incision lenticule extraction (SMILE) in relation to pre-operative spherical equivalent. Graefes Arch Clin Exp Ophthalmol, 1053-1060, vol. 259(4). link> doi> full text>
  • Luis E, Pan HM, Bastola AK, Bajpai R, Sing SL, Song J, Yeong WY. 2020. 3D Printed Silicone Meniscus Implants: Influence of the 3D Printing Process on Properties of Silicone Implants. Polymers (Basel), vol. 12(9). link> doi> full text>
  • Ahmad I, Chufal KS, Bajpai R, Miller AA, Chowdhary RL, Pahuja AK, Chhabra A, Gairola M. Malignant esophagorespiratory fistulas: a comparative effectiveness survival analysis. BMJ Supportive and Palliative Care. doi> link>
  • Parveen R, Sehar N, Bajpai R, Agarwal NB. 2020. Association of diabetes and hypertension with disease severity in covid-19 patients: A systematic literature review and exploratory meta-analysis. Diabetes Res Clin Pract, 108295, vol. 166. link> doi> full text>
  • Kumar M, Bajpai R, Shaik AR, Srivastava S, Vohora D. 2020. Alliance between selective serotonin reuptake inhibitors and fracture risk: an updated systematic review and meta-analysis. Eur J Clin Pharmacol, 1373-1392, vol. 76(10). 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. 2020. Rheumatological conditions as risk factors for self‐harm: A retrospective cohort study. Arthritis Care & Research, Article acr.24345. doi> link> full text>
  • Chong J, Bajpai R, Teoh OH, Pugalenthi A, Allen JC, Cheng ZR, Tan SG, Lim M, Tan J, Goh A, Tan YH, Thomas B. 2020. Predictive equation for optimal continuous positive airway pressure in children with obstructive sleep apnoea. ERJ Open Research, 00312-2019, vol. 6(2). doi> link> full text>
  • Xu X, Olsson M, Bajpai R, Aan MK, Yew YW, Wong S, Foong A, Thng S, Järbrink K, Car J. 2020. Concordance Between Physician-rated and Caregiver-perceived Disease Severity in Children with Atopic Dermatitis: A Cross-sectional Study. Acta Derm Venereol, adv00308, vol. 100(18). link> doi>
  • Luis E, Pan HM, Sing SL, Bajpai R, Song J, Yeong WY. 2020. 3D Direct Printing of Silicone Meniscus Implant Using a Novel Heat-Cured Extrusion-Based Printer. Polymers (Basel), vol. 12(5). link> doi> full text>
  • Chaturvedi HK, Bajpai RC, Tiwari P. 2020. Determination of cut-off and correlates of delay in treatment-seeking of febrile illness: a retrospective analysis. BMC Public Health, 572, vol. 20(1). link> doi> full text>
  • Bajpai R, Chaturvedi HK, Car J. 2020. How varying CD4 criteria for treatment initiation was associated with mortality of HIV-patients? A retrospective analysis of electronic health records from Andhra Pradesh, India. J Glob Health, 010408, vol. 10(1). link> doi> full text>
  • Xu X, van Galen L, Bajpai R, Koh M, Thng S, Yew Y, Järbrink K, Car J. 2020. Factors Influencing Family Burden of Paediatric Patients with Atopic Dermatitis: A Cross-sectional Study. Acta Dermato Venereologica, 0. doi> link> full text>
  • Dunleavy G, Bajpai R, Tonon AC, Cheung KL, Thach T-Q, Rykov Y, Soh C-K, de Vries H, Car J, Christopoulos G. 2020. Prevalence of psychological distress and its association with perceived indoor environmental quality and workplace factors in under and aboveground workplaces. BUILDING AND ENVIRONMENT, Article ARTN 106799, vol. 175. link> doi> full text>
  • Clarson LE, Bajpai R, Whittle R, Belcher J, Abdul Sultan A, Kwok CS, Welsh V, Mamas M, Mallen CD. 2020. Interstitial lung disease is a risk factor for ischaemic heart disease and myocardial infarction. Heart, 916-922, vol. 106(12). doi> full text>
  • Divakar U, Sathish T, Soljak M, Bajpai R, Dunleavy G, Visvalingam N, Nazeha N, Soh CK, Christopoulos G, Car J. 2019. Prevalence of Vitamin D Deficiency and Its Associated Work-Related Factors among Indoor Workers in a Multi-Ethnic Southeast Asian Country. Int J Environ Res Public Health, vol. 17(1). link> doi> full text>
  • Olsson M, Bajpai R, Yew YW, Koh MJA, Thng S, Car J, Järbrink K. 2020. Associations between health-related quality of life and health care costs among children with atopic dermatitis and their caregivers: A cross-sectional study. Pediatr Dermatol, 284-293, vol. 37(2). link> doi>
  • Luis E, Pan HM, Sing SL, Bastola AK, Goh GD, Goh GL, Tan HKJ, Bajpai R, Song J, Yeong WY. 2019. Silicone 3D Printing: Process Optimization, Product Biocompatibility, and Reliability of Silicone Meniscus Implants. 3D PRINTING AND ADDITIVE MANUFACTURING, 319-332, vol. 6(6). link> doi> full text>
  • Visvalingam N, Sathish T, Soljak M, Ping CA, Dunleavy G, Divakar U, Nazeha N, Bajpai R, Soh CK, Woon KK, Christopoulos G, Car J. 2019. Prevalence of and factors associated with poor sleep quality and short sleep in a working population in Singapore. Sleep Health. doi>
  • Pahuja AK, Chufal KS, Ahmad I, Bajpai R, Singh R, Chowdhary RL, Sharma M. 2019. Identifying Prognostic Groups Using Machine Learning Tools in Patients Undergoing Chemoradiation for Inoperable Locally Advanced Nonsmall Cell Lung Carcinoma. Asian Journal of Oncology. doi> full text>
  • Ahmad I, Chufal K, Chowdhary R, Bajpai R, Pahuja A, Singh R, Gairola M. 2019. PO-155: Malignant Esophago-Respiratory Fistulas: An institutional audit of treatment outcomes. Radiotherapy and Oncology, S67-S68, vol. 141. doi>
  • Tay E and Bajpai R. 2019. Small incision lenticule extraction (SMILE) lenticule thickness readout compared to change in axial length measurements with the IOLMaster. Graefe's Archive for Clinical and Experimental Ophthalmology. doi>
  • Ho AHY, Ma SHX, Ho M-HR, Pang JSM, Ortega E, Bajpai R. 2019. Arts for ageing well: a propensity score matching analysis of the effects of arts engagements on holistic well-being among older Asian adults above 50 years of age. BMJ Open, e029555, vol. 9(11). doi>
  • Dunleavy G, Bajpai R, Tonon AC, Chua AP, Cheung KL, Soh C-K, Christopoulos G, Vries HD, Car J. 2019. Examining the Factor Structure of the Pittsburgh Sleep Quality Index in a Multi-Ethnic Working Population in Singapore. Int J Environ Res Public Health, vol. 16(23). link> doi>
  • Sathish T, Dunleavy G, Soljak M, Visvalingam N, Nazeha N, Divakar U, Bajpai R, Thach T-Q, Cheung KL, Vries HD, Soh C-K, Christopoulos G, Car J. 2019. Risk Factors for Non-Communicable Diseases at Baseline and Their Short-Term Changes in a Workplace Cohort in Singapore. International Journal of Environmental Research and Public Health, 4551, vol. 16(22). doi> full text>
  • Xu X, van Galen LS, Koh MJA, Bajpai R, Thng S, Yew YW, Ho VPY, Alagappan U, Järbrink KSA, Car J. 2019. Factors influencing quality of life in children with atopic dermatitis and their caregivers: a cross-sectional study. Sci Rep, 15990, vol. 9(1). link> doi>
  • Olsson M, Bajpai R, Wee LWY, Yew YW, Koh MJA, Thng S, Car J, Järbrink K. 2019. The cost of childhood atopic dermatitis in a multi‐ethnic Asian population: a cost‐of‐illness study. British Journal of Dermatology, Article bjd.18442. doi> full text>
  • Dunleavy G, Sathish T, Nazeha N, Soljak M, Visvalingam N, Bajpai R, Yap HS, Roberts AC, Quoc TT, Tonon AC, Christopoulos G, Soh C-K, Cheung KL, de Vries H, Car J. 2019. Health Effects of Underground Workspaces cohort: study design and baseline characteristics. Epidemiology and Health, e2019025, vol. 41. doi> full text>
  • Divakar U, Nazeha N, Posadzki P, Jarbrink K, Bajpai R, Ho AHY, Campbell J, Feder G, Car J. 2019. Digital Education of Health Professionals on the Management of Domestic Violence: Systematic Review and Meta-Analysis by the Digital Health Education Collaboration. Journal of Medical Internet Research, e13868, vol. 21(5). doi> full text>
  • Tan WS, Bajpai R, Low CK, Ho AHY, Wu HY, Car J. 2019. Individual, clinical and system factors associated with the place of death: A linked national database study. PLoS One, e0215566, vol. 14(4). link> doi> full text>
  • Chaturvedi HK, Bajpai RC, Tiwari P. 2019. Association of religion and cultural tradition with alcohol use among some tribal communities of Arunachal Pradesh, India. Journal of Ethnicity in Substance Abuse, 296-308, vol. 18(2). link> doi> link>
  • Patnaik U, Nilakantan A, Bajpai R, Addya K. 2019. Comprehensive assessment in cosmetic rhinoplasty: The use of the Derriford Appearance Scale for evaluation of patients. Med J Armed Forces India, 184-189, vol. 75(2). link> doi>
  • Srivastava R, Singh RK, Bajpai RC, Dutta PK. 2019. Study of risk factors causing coronary heart disease among army personnel of the rank non-commissioned officers and below in the age group of 20-50 years and its association with prehypertension. International Journal of Medical Science and Public Health, 360-364, vol. 8(5). doi> link> full text>
  • Bajpai S, Semwal M, Bajpai R, Car J, Ho AHY. 2019. Health Professions' Digital Education: Review of Learning Theories in Randomized Controlled Trials by the Digital Health Education Collaboration. J Med Internet Res, e12912, vol. 21(3). link> doi> full text>
  • Semwal M, Whiting P, Bajpai R, Bajpai S, Kyaw BM, Tudor Car L. 2019. Digital Education for Health Professions on Smoking Cessation Management: Systematic Review by the Digital Health Education Collaboration. J Med Internet Res, e13000, vol. 21(3). link> doi> full text>
  • Huang Z, Semwal M, Lee SY, Tee M, Ong W, Tan WS, Bajpai R, Tudor Car L. 2019. Digital Health Professions Education on Diabetes Management: Systematic Review by the Digital Health Education Collaboration. J Med Internet Res, e12997, vol. 21(2). link> doi> full text>
  • Car J, Carlstedt-Duke J, Tudor Car L, Posadzki P, Whiting P, Zary N, Atun R, Majeed A, Campbell J, Digital Health Education Collaboration. 2019. Digital Education in Health Professions: The Need for Overarching Evidence Synthesis. J Med Internet Res, e12913, vol. 21(2). link> doi> full text>
  • Tan WS, Bajpai R, Ho AHY, Low CK, Car J. 2019. Retrospective cohort analysis of real-life decisions about end-of-life care preferences in a Southeast Asian country. BMJ Open, e024662, vol. 9(2). link> doi> full text>
  • Martinengo L, Olsson M, Bajpai R, Soljak M, Upton Z, Schmidtchen A, Car J, Jarbrink K. 2019. Prevalence of chronic wounds in the general population: systematic review and meta-analysis of observational studies. Annals of Epidemiology, 8-15, vol. 29. link> doi>
  • Tan WS, Bajpai R, Low CK, Ho AHY, Car J. 2018. Using Routinely Collected Data to Ascertain Concordance With Advance Care Planning Preferences. Journal of Pain and Symptom Management, 659-+, vol. 56(5). link> doi> link>
  • Olsson M, Järbrink K, Divakar U, Bajpai R, Upton Z, Schmidtchen A, Car J. 2019. The humanistic and economic burden of chronic wounds: A systematic review. Wound Repair Regen, 114-125, vol. 27(1). link> doi>
  • Narang I, Sardana K, Bajpai R, Garg VK. 2019. Seasonal aggravation of acne in summers and the effect of temperature and humidity in a study in a tropical setting. J Cosmet Dermatol, 1098-1104, vol. 18(4). link> doi>
  • Ahmad I, Chufal KS, Bashir I, Bhatt CP, Bajpai R, Sharma L, Rathour S. 2018. Early Clinical Outcomes, Patterns of Failure, and Acute Haematologic Toxicity of Image-Guided Volumetric Modulated Arc Therapy (IG-VMAT) in the Definitive Treatment of Locally Advanced Carcinoma Cervix. Clin Med Insights Oncol, 1179554918783990, vol. 12. link> doi> full text>
  • Posadzki PP, Bajpai R, Kyaw BM, Roberts NJ, Brzezinski A, Christopoulos GI, Divakar U, Bajpai S, Soljak M, Dunleavy G, Jarbrink K, Nang EEK, Soh CK, Car J. 2018. Melatonin and health: an umbrella review of health outcomes and biological mechanisms of action. BMC Medicine, Article ARTN 18, vol. 16. link> doi> link> full text>
  • Chaudhuri S, Dey S, Awasthi A, Bajpai RC. 2017. Does tobacco addiction relate to oral mucosal changes? An epidemiological study from North India. Journal of Public Health, 257-266, vol. 25(3). doi>
  • Jain S, Jain S, Kapoor G, Virmani A, Bajpai R. 2017. No impact of disease and its treatment on bone mineral density in survivors of childhood acute lymphoblastic leukemia. Pediatric Blood and Cancer, Article UNSP e26271, vol. 64(4). link> doi> link>
  • Järbrink K, Ni G, Sönnergren H, Schmidtchen A, Pang C, Bajpai R, Car J. 2017. The humanistic and economic burden of chronic wounds: a protocol for a systematic review. Syst Rev, 15, vol. 6(1). link> doi> full text>
  • Hibare K, Goyal R, Nemani C, Avinash R, Bajpai R, Ullas B. 2017. Radial endobronchial ultrasound for the diagnosis of bronchoscopically invisible lesions: First case series from India. Lung India, 43, vol. 34(1). doi>
  • Bajpai R, Chaturvedi H, Jayaseelan L, Harvey P, Seguy N, Chavan L, Raj P, Pandey A. 2016. Effects of Antiretroviral Therapy on the Survival of Human Immunodeficiency Virus-positive Adult Patients in Andhra Pradesh, India: A Retrospective Cohort Study, 2007-2013. J Prev Med Public Health, 394-405, vol. 49(6). link> doi> full text>
  • Järbrink K, Ni G, Sönnergren H, Schmidtchen A, Pang C, Bajpai R, Car J. 2016. Prevalence and incidence of chronic wounds and related complications: a protocol for a systematic review. Syst Rev, 152, vol. 5(1). link> doi> full text>
  • Chaudhuri S, Dey S, Bajpai RC. 2016. Prevalence of oral ulcers and its association with addictions in rural population of western Uttar Pradesh and eastern Rajasthan. Journal of Oral Biology and Craniofacial Research, 179-186, vol. 6(3). link> doi> link>
  • Bajpai R, Chaturvedi H, Kumar S, Pandey A. 2016. Estimation of life-time survival and predictors of mortality among the people living with HIV/AIDS: a case study in Andhra Pradesh, India. International Journal of Community Medicine and Public Health, 845-851. doi>
  • Bajpai R, Chaturvedi HK, Bhatnagar N, Jha UM. 2016. Correlates of Change in CD4 Count among the HIV Patients at Antiretroviral Treatment Centres in India: Cross Sectional Analysis of Secondary Data. National Journal of Community Medicine, 71-77, vol. 7(2).
  • Jain S, Kapoor G, Bajpai R. 2016. ABVD-Based Therapy for Hodgkin Lymphoma in Children and Adolescents: Lessons Learnt in a Tertiary Care Oncology Center in a Developing Country. Pediatric Blood and Cancer, 1024-1030, vol. 63(6). link> doi> link>
  • Chaturvedi HK, Bajpai RC, Pandey A. Predictors of Substance Use in the Tribal Population of Northeast India: Retrospective Analysis of a Cross-Sectional Survey. Journal of Addiction Research & Therapy, vol. 7(5). doi>
  • Gupta A, Kapoor G, Jain S, Bajpai R. 2015. Absolute Lymphocyte Count Recovery Independently Predicts Outcome in Childhood Acute Lymphoblastic Leukemia: Experience From a Tertiary Care Cancer Center of a Developing Country. J Pediatr Hematol Oncol, e143-e149, vol. 37(3). link> doi>
  • Bajpai S, Bajpai R, Chaturvedi HK. 2015. Evaluation of Inter-Rater Agreement and Inter-Rater Reliability for Observational Data: An Overview of Concepts and Methods. Journal of the Indian Academy of Applied Psychology, 20-27, vol. 41(3).
  • Bajpai S, Bajpai R, Singh AR. 2015. The Rorschach Factor Structure and Personality Assessment of Normal Indian Adults. Journal of the Indian Academy of Applied Psychology, 142-150, vol. 41(1).
  • Chaturvedi HK, Mahanta J, Bajpai RC, Pandey A. 2014. Risk of malaria among febrile patients: retrospective analysis of a hospital-based study in an endemic area of northeast India. Int Health, 144-151, vol. 6(2). link> doi>
  • Bajpai S and Bajpai R. 2014. Goodness of Measurement: Reliability and Validity. International Journal of Medical Science and Public Health, 112, vol. 3(2). doi>
  • Bajpai R, Raj PY, Jha UM, Chaturvedi HK, Pandey A. 2014. Demographic Correlates of Survival in Adult HIV Patients Registered at ART Centers in Andhra Pradesh, India: A Retrospective Cohort Study. Public Health Research, 31-38, vol. 4(1). doi>
  • Bajpai R, Chaturvedi HK, Pandey A. 2014. Relative Survival: A Useful Tool in Population Based Health Studies. American Journal of Mathematics and Statistics, 38-45, vol. 4(1). doi>
  • Bajpai S, Sengar KS, Bajpai R, Singh AR. 2013. Rorschach culture and popular responses. Eastern Journal of Psychiatry, 36-40, vol. 16(1 & 2).
  • Sharma SK and Bajpai R. 2013. Cases of "drowning" not backed by autopsy & diatoms test (drowning mess a result of lack of vision). International Journal of Medical Toxicology and Legal Medicine, 45-51, vol. 16(1 & 2).
  • Arora P, Bajpai R, Shrivastava R. 2013. Emergency contraception: a study to assess knowledge, attitude and practice among female college students in Delhi. National Journal of Community Medicine, 282-285, vol. 4(2).
  • Chaturvedi HK, Mahanta J, Bajpai RC, Pandey A. 2013. Correlates of opium use: retrospective analysis of a survey of tribal communities in Arunachal Pradesh, India. BMC Public Health, 325, vol. 13. link> doi>
  • Bajpai S, Bajpai R, Singh A, Sengar KS, Singh AR. 2012. A Correlational Study of Rorschach Indices with Intellectual Endowment in Normal Indian Adults. Indian journal of clinical psychology, 61-66, vol. 39(1).
  • Bajpai R, Bajpai S, Arora P, Singh GP. 2012. Assessment of Utilization of Antenatal Care Services and Their Associated Factors in Slums Of Varanasi. Indian Journal of Maternal and Child Health, 1-8, vol. 14(1).
  • Srivastava R, Matta S, Bajpai R, Dutta PK. 2012. Monitoring of Domestic Breeding of Dengue Fever Vector Along Side Intensified Pulse Polio Immunization Programme Phases in Delhi Cantonment: A Rewarding Experience. Indian Journal of Preventive and Social Medicine, 107-112, vol. 43(1).
  • Upadhyay S, Sen MR, Bhattacharjee A, Prakash P, Bajpai RC, Anupurba S. 2011. Diagnostic utility of combination of inducer and inhibitor based assay in detection of Pseudomonas aeruginosa producing AmpC β-lactamase. J Microbiol Methods, 116-118, vol. 87(1). link> doi>
  • Arora P, Dhuria M, Srivastava R, Bajpai R. 2011. Perceptions and practices regarding menstruation among adolescent girls in a semi-urban area of Delhi. Indian Journal of Maternal and Child health, vol. 13(3).
  • Bajpai S, Bajpai R, Singh AR, Sengar KS. 2011. Associational Contents of Rorschach and its Relationship with Verbal Intelligence in adults. SIS J. Proj. Psy. & Ment. Health, 193-199, vol. 18(2).
  • Bajpai S, Bajpai R, Sengar KS, Singh AR, Desai NG. 2010. Rorschach Profile of Indian Adults. SIS. J. Proj. Psy. & Mental health, 180-186, vol. 17(2).
  • Chatterjee A, Bajpai R, Khatiwada P. Analyzing the Impact of Healthy Behavior on Weight Change with a Provable Mathematical Model (Preprint). Journal of Medical Internet Research. doi> link> full text>
  • Semwal M, Whiting P, Bajpai R, Bajpai S, Kyaw BM, Tudor Car L. Digital Education for Health Professions on Smoking Cessation Management: Systematic Review by the Digital Health Education Collaboration (Preprint). doi>
  • Divakar U, Nazeha N, Posadzki P, Jarbrink K, Bajpai R, Ho AHY, Campbell J, Feder G, Car J. Digital Education of Health Professionals on the Management of Domestic Violence: Systematic Review and Meta-Analysis by the Digital Health Education Collaboration (Preprint). doi>
  • Huang Z, Semwal M, Lee SY, Tee M, Ong W, Tan WS, Bajpai R, Tudor Car L. Digital Health Professions Education on Diabetes Management: Systematic Review by the Digital Health Education Collaboration (Preprint). doi>
  • Bajpai S, Semwal M, Bajpai R, Car J, Ho AHY. Health Professions’ Digital Education: Review of Learning Theories in Randomized Controlled Trials by the Digital Health Education Collaboration (Preprint). doi>
  • Mittal HC, Bajpai R, Singh RK, Mohanty U. Prevalence and incidence of dental fluorosis in India: protocol for a systematic review and Meta-analysis. Systematic Reviews. doi> link> full text>

Chapters

  • Chaturvedi HK, Bajpai R, Pandey A. Correlates and Gender Differentials of Opium Use Among Tribal Communities. In Neuropathology of Drug Addictions and Substance Misuse. Academic Press, Elsevier, London. doi>

Other

  • Navarro CLA, Damen J, Takada T, Dhiman P, Collins GS, Ma J, Bajpai R, Riley RD, Hooft L, Moons KG. 2021. Why are Machine Learning-based prediction models still unpopular in clinical practice?. Diagnostic and Prognostic Research. doi> link> full text>
  • Ahmed I, Chufal KS, Bajpai R, Miller A, Chowdhary RL, Umesh P, Dobriyal K, Gairola M. 2020. Clinical Outcomes Of Patients With Pathologic Residual Nodal Disease After Neo-Adjuvant Chemoradiation For Esophageal Carcinoma. doi> link>
  • Chufal KS, Ahmad I, Bajpai R, Miller A, Chowdhary RL, Gairola M. 2020. Pathological Response Prediction To Neo-Adjuvant Chemoradiation In Esophageal Carcinoma Using Artificial Intelligence And Radiomics: An Exploratory Analysis. doi> link>
  • Ahmed I, Chufal KS, Bhatt CP, Bajpai R, Miller A, Chowdhary RL, Pahuja AK, Gairola M. 2020. Plan Quality of Modern Radiotherapy Delivery Techniques in Left-Sided Breast Cancer: An Analysis Stratified by Consensus Target Delineation Guidelines. doi> link>
  • Scott IC, Bajpai R, Hider SL, Helliwell T, Muller S, Mallen CD. 2020. THE RELATIONSHIP BETWEEN OBESITY AND OUTCOMES IN PATIENTS WITH POLYMYALGIA RHEUMATICA. RHEUMATOLOGY (p. 18, vol. 59). link> doi>
  • Scott IC, Bajpai R, Hider SL, Helliwell T, Muller S, Mallen C. 2020. The relationship between obesity and outcomes in patients with polymyalgia rheumatica. Rheumatology. link> doi>
  • Ahmad I, Chufal K, Chowdhary R, Bajpai R, Pahuja A, Singh R, Gairola M. 2019. Malignant Esophago-Respiratory Fistulas: An institutional audit of treatment outcomes. RADIOTHERAPY AND ONCOLOGY (pp. S67-S68, vol. 141). link>
  • Chong HZJ, Pugalenthi A, Bajpai R, Teoh OH, Cheng ZR, Tan SG, Lim M, Tan J, Goh A, Tan YH, Thomas B. 2019. Predictive equation for optimal Continuous Positive Airway Pressure (CPAP) in children with Obstructive Sleep Apnoea (OSA). EUROPEAN RESPIRATORY JOURNAL (vol. 54). link> doi>
  • Bajpai R and Chaturvedi H. How varying CD4 criteria for treatment initiation was associated with survivability of HIV-patients?: retrospective analysis of health records from India.
  • Bajpai R and Car J. Reporting of planned power and statistical design in published digital education intervention studies for health professionals: a cross-sectional analysis.
  • Gern JE. 2019. Young Investigator's Oral Communications. PEDIATRIC PULMONOLOGY (pp. S8-S10, vol. 54). link> doi>
  • Xu X, van Galen L, Koh MJA, Bajpai R, Jarbrink K, Car J. 2019. HEALTH-RELATED QUALITY OF LIFE AMONG PEDIATRIC PATIENTS WITH ATOPIC DERMATITIS AND THEIR CAREGIVERS IN SINGAPORE. link>
  • Xu X, Louise VG, Koh MJA, Bajpai R, Jarbrink K, Car J. 2019. THE FAMILY IMPACT OF CHILDHOOD ATOPIC DERMATITIS IN SINGAPORE. link>
  • Bajpai R, Posadzki P, Soljak M, Car J. 2018. Managing overlap in overviews of reviews: a cross-sectional survey of the published literature between 2015-2017. Cochrane Database of Systematic Reviews 2018 (pp. 207-208, vol. 9). colloquium2018.cochrane.org. doi> link>
  • Bajpai R and Car J. Bayesian meta-analysis in medical evidence synthesis: a systematic review of design of methodology and its reporting.
  • Nazeha N, Sathish T, Visvalingam N, Dunleavy G, Divakar U, Soljak M, Bajpai R, Soh CK, Kwok K-W, Christopoulos G, Car J. 2018. Obesity prevalence in aboveground and underground workplaces among employees in singapore: a cross-sectional study. link>
  • Olsson M, Bajpai R, Upton Z, Jarbrink K. 2018. The humanistic and economic burden of wounds in Singapore: a multi-ethnic sample.
  • Kyaw BM, Posadzki P, Dunleavy G, Semwal M, Bajpai R, Divakar U, Car LT, Car J. 2017. Effectiveness of Problem-Based-eLearning (e-PBL) for pre- and post-registration health professional education. Cochrane Database of Systematic Reviews. doi> link>
  • Bajpai R and Car J. Innovative research strategies for studying the effectiveness of eHealth interventions: a methodological review.
  • Bajpai R and Car J. 2017. Could adaptive research designs be useful in designing an effective ehealth intervention? A methodological analysis. TRIALS (vol. 18). link> doi>
  • Chaturvedi HK, Bajpai R, Pandey A. 2012. Delay in Reporting Febrile Illness in the Endemic Areas: Some Possible Correlates.
  • Bajpai R and Chaturvedi HK. 2010. Geographic Information System (GIS) in Public Health : Issues and Challenges.