Changing speed of reduction in under-5 mortality rates over the 20th century
Background Declines from high levels of under-5 mortality rate (U5MR) first occurred in Western Europe. Knowledge and technologies gained from early mortality reductions could accelerate the U5MR decline for countries that followed. We explored whether average annual reduction (AAR) in U5MR increased between countries over time in the 20th century.Methods We used U5MR time series from the Human Mo
