Abstract
Background: Every year millions of under-five children die due to different causes and some of those death could be prevented by proper awareness or taking steps. Though under-five child mortality rate has reduced by a remarkable rate for last decade in Bangladesh, the rate is still high to reach the expected level of Sustainable Development Goals (SDGs). Methods: The main aim of this study was to find out the socioeconomic and demographic determinants of under-five child mortality in Bangladesh. Nationally representative cross-sectional secondary data from the Multiple Indicator Cluster Survey (MICS) 2019, Bangladesh had been used in this study. Outcome variable was under-five child survival status (alive or dead). Kaplan–Meier log-rank test and Cox Proportional Hazard (PH) model with 95% confidence interval (CI) were fitted to identify associated risk factors for under-five child mortality. This analysis was performed by using STATA version 16.Results: The study showed that among 5112 under-five children, 170 (3.3%) were dead. Cox proportional hazard model revealed that mother’s education [secondary (HR: 0.53, 95%CI: (0.30, 0.94), p=0.03), higher (HR: 0.41, 95% CI: (0.21, 0.81), p=0.01)], higher birth order [HR: 1.43, 95% CI: (1.13, 1.89), p=0.007], size of child at birth [HR: 2.28, 95% CI: (1.22, 4.26), p=0.009], taking antenatal care [HR: 0.77, 95% CI: (0.52, 1.15), p= 0.091] had a significant effect on child mortality. Under-five child mortality rate was varied among division and highest mortality rate was found in Sylhet [HR: 2.13, 95% CI: (0.99, 4.55), p=0.054]. Conclusions: This study identified potential risk factors for under-five child mortality, which would help the policy makers to take proper steps as community-based educational programs for mother’s and public health interventions focused on birth to reduce under-five child mortality rate in Bangladesh.