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Overview

Anatomy

Biostatistics

INTRODUCTION:
Biostatistics has been an integral part of St. John’s Research Institute from its inception and in 2016 the Department of Biostatistics was formed in St John’s Medical College. The department plays a pivotal role in the research activities of the St. John’s National Academy of Health Sciences. Apart from research, the department is also involved in the teaching of undergraduate and postgraduate students of the academy.

The Mission
The mission of the Department of Biostatistics is to serve as a continuous source of expertise in research design and quantitative methods for public health and clinical research & training and to promote the application of most suitable, relevant and advanced statistical techniques in health science research. The department provides a conducive environment for developing newer advanced techniques in study design and data analysis in collaboration with multiple health disciplines.

Research:
* Longitudinal data analysis and analysis of serial cross-sectional surveys.
* Semi-parametric time series models for air pollution and health research

Our Team

Unit Head

Most Rev. Prakash Mallavarapu
Professor

Dr. Tinku Thomas is a Biostatistician with expertise in quantitative nutrition, survey data analysis, and advanced st...

Core Staff

Most Rev. Prakash Mallavarapu
Associate Professor

Dr. Santu Ghosh is an Associate Professor of Biostatistics at St John’s Medical College, Bengaluru, with over 18 year...

Most Rev. Prakash Mallavarapu
Associate Professor

Sumithra Selvam is a public health researcher and biostatistician at St. John’s Research Institute, Bengaluru, specia...

Most Rev. Prakash Mallavarapu
Senior Resident

John Michael Raj is an Experienced Biostatistician with over 8 years in clinical trials and observational research, c...

Services

Publications

A comparison of blood pressure reference values and the prevalence of high blood pressure in Indian adolescents aged 10–16 years using American and Indian reference standards.

Groups and Associations Aswathi Saji,Tinku Thomas,Harshpal Singh Sachdev,Anura V Kurpad and Anil Vasudevan
Clinical Hypertension 2026
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Adjusting for truncated study duration in recurrent event analysis: A weighting approach for clinical trials

Groups and Associations Michael Raj A J, Thomas T, Dwarkanath P
PLoS One 2025
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Contrasting Patterns in Ambient PM2.5 Exposure Disparity Across Population Subgroups in Urban and Rural India

Groups and Associations Debajit Sarkar, Alok Kumar, Fahad Imam, Santu Ghosh, Julian D. Marshall, Joshua Apte, Luke D. Knibs, Pallavi Pant, Yang Liu, Sagnik Dey
GeoHealth 2025
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Estimation of habitual intake of infrequently consumed nutrients using the mixture distribution method

Groups and Associations Smitha Joseph, Santu Ghosh, Sumathi Swaminathan, Tinku Thomas
Frontiers in Nutrition 2025
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Limited pelvic radiotherapy in post-operative uterine carcinoma

Groups and Associations Hadrian Noel Alexander, Avinash H Udayashankara, Silpa Johnson, Nirmala Srikantia, John Michael Raj
Reports of Practical Oncology and Radiotherapy 2025
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Trends in radiation therapy administration at a pediatric cancer center in South India

Groups and Associations Sakshi Garg, Sandeep Muzumder, F Hadrian Noel Alexander, Avinash H Udayashankara, Nirmala Srikantia, John Michael Raj
Pediatric Hematology Oncology Journal 2025
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Comparison of the cut-off for sarcopenia diagnosis among elderly Indians using reference data of young healthy Indians and the Asian working group on sarcopenia (AWGS) definition

Groups and Associations Shinjini Bhattacharya, Sumithra Selvam, Tony DS Raj, Arvind Kasthuri, Sucharita Sambashivaiah
Indian Journal of Physiology and Pharmacology 2026
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Associations of bone health biomarkers and bone mineral density with dietary intakes in vitamin D deficient women: a cross-sectional study

Groups and Associations Chandni Halcyon Peris, Sumithra Selvam, Sumathi Swaminathan, Ravi Rangarajan, Tony Raj, Prashanth Thankachan
Scientific Reports 2025
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Speciality Clinics

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