Mortality, particularly at younger ages, is a key measure of population health. Avoiding premature mortality from any cause is a crucial goal for every health system, and targets for mortality reduction are central in the development agenda for improving health.1, 2 In the era of the Millennium Development Goals (MDGs), reducing mortality rates among children was one of eight overall goals.3 In the current era of Sustainable Development Goals (SDGs), reducing neonatal and under-5 mortality remains a priority, accompanied by attention to reducing premature deaths among adults from non-communicable causes, road injuries, natural disasters, and other causes.4 As the global health agenda broadens, the need for up-to-date and accurate measurement…..  continued to read