Information about how the risk of death varies with age within the 0-5 age range represents critical evidence for guiding health policy. The goal of this paper is to propose a new model for summarizing regularities about how under-5 mortality is distributed by detailed age in human populations. This model is based on a newly-compiled database on under-five mortality by detailed age in countries with high-quality vital registration systems, covering a wide array of mortality levels and patterns. This model uses a log-quadratic approach, predicting a full mortality schedule between age 0 and 5 on the basis of only 1 or 2 parameters. We present applications of this model for evaluating and correcting under-5 mortality information by detailed age in countries with deficient vital registration.
Presented in Session 182. Age Patterns of Mortality