Related Experiment Video
Updated: Mar 1, 2026

MEDUSA for Identifying Death Regulatory Genes in Chemo-genetic Profiling Data
Published on: February 7, 2025
CASTE DIFFERENTIALS IN DEATH CLUSTERING IN CENTRAL AND EASTERN INDIAN STATES
Mukesh Ranjan1, Laxmi Kant Dwivedi1, Rahul Mishra1
1International Institute for Population Sciences,Deonar,Mumbai,India.
Infant deaths cluster within families, with previous sibling deaths significantly increasing subsequent infant mortality risk across Indian states. This "scarring" effect, alongside unobserved maternal factors, highlights critical areas for targeted maternal and child health interventions.
Area of Science:
- Public Health
- Demography
- Sociology
Background:
- Infant mortality remains a significant public health challenge in India.
- Caste differentials and family-level factors influence infant survival.
- Understanding unobserved heterogeneity and sibling survival linkages is crucial.
Purpose of the Study:
- To assess caste differentials in family-level infant death clustering.
- To examine the impact of sibling survival prospects (scarring) and mother-level unobserved heterogeneity on infant mortality risk.
- To identify high-risk groups for targeted maternal and child health policies in central and eastern India.
Main Methods:
- Bivariate analysis to examine infant death clustering.
- Random effects logit model to capture sibling survival linkages and mother-level heterogeneity.
- Utilized micro-data from the National Family Health Survey-III (2005-06) for Jharkhand, Madhya Pradesh, Odisha, and Chhattisgarh.
Main Results:
- Significant infant death clustering observed across all caste groups and states, highest in Scheduled Castes of Jharkhand.
- Previous infant death (scarring effect) significantly increased subsequent sibling infant mortality risk, controlling for other factors.
- Caste-specific variations in the influence of scarring versus mother-level unobserved factors were identified across states.
Conclusions:
- Previous infant deaths are a critical predictor of subsequent infant mortality, indicating a 'scarring' effect.
- Both 'scarring' and unobserved maternal factors play significant roles, varying by caste and state.
- Findings inform targeted interventions for high-risk maternal and child populations to improve health indicators.
Related Concept Videos
Bias in Epidemiological Studies
Life Tables
Comparing the Survival Analysis of Two or More Groups
Confounding in Epidemiological Studies
Cancer Survival Analysis
Applications of Life Tables

