Comparisons of cox semi-parametric and parametric shared frailty models: application for under-five children survival in sub-Saharan Africa
The exponential shared frailty hazard model with lognormal frailty distribution demonstrated better performance compared to the Cox semiparametric model for identifying risk factors for under-five children across sSA countries. Place of residence, wealth index, media exposure, birth order, birth interval, access to improved water, and use of clean fuels for cooking were the significant risk factors on time to death of under-five children in sSA.
Authors
- Haile Mekonnen Fenta (ORCID: https://orcid.org/0000-0002-3919-2762)
- Ding‐Geng Chen (ORCID: https://orcid.org/0000-0002-3199-8665)
- Temesgen T. Zewotir (ORCID: https://orcid.org/0000-0003-1503-8055)
- Seyifemickael Amare Yilema (ORCID: https://orcid.org/0000-0002-9445-6038)
- Najmeh Nakhaei Rad (ORCID: https://orcid.org/0000-0002-7831-5614)
- Deneke Bitew Belay
Institutions
- Debre Tabor University (ET)
- Arizona State University (US)
- Bahir Dar University (ET)
- University of Pretoria (ZA)
- University of KwaZulu-Natal (ZA)
- University of Oulu (FI)
Publication Details
- Journal
- BMC Public Health
- Published
- 2025-08-22
- DOI
- https://doi.org/10.1186/s12889-025-24186-x
- Citations
- 1
- Primary Topic
- Global Health Care Issues
- Type
- article
- Field-Weighted Citation Impact
- 2.82
Funders
- National Research Foundation
- South African Medical Research Council
- Medical Research Council