Application of cox proportional hazard model to study the influence of determinants on under five mortality in Odisha, India
Year: 2025
Type: article
Abstract: This study investigates under-five mortality (U5M) dynamics in Odisha using National Family Health Survey (NFHS) data through five models incorporating socio-economic, environmental, demographic, nutritional, and media variables. Employing the Cox Proportional Hazard model facilitates time-to-event analysis, accommodating censored observations and handling multiple covariates. The model's assumption of proportional hazard ratios over time suits the study of U5M, a time-dependent event. Table 1 presents hazard ratios from NFHS-4 to NFHS-5, revealing evolving trends in U5M risk factors. Significant contributors include maternal education, with hazard ratios decreasing across education levels, indicating improved associations with U5M in NFHS-5. Rural areas exhibit consistently higher hazard ratios, while wealthier households show potential rises in U5M risk. Varied impacts on U5M risk emerge for birth-related factors. These findings underscore the changing landscape of U5M risk factors in Odisha, offering a foundation for evidence-based policymaking to address evolving socio-demographic dynamics impacting child survival in the region.
DOI: 10.14419/qbe28963
Authors: Srinibasa Sahoo, Ranjan Kumar Sahoo
Institutions: Utkal University, Central University of Haryana
Language: English
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4409602064