In this paper, we focus on the second aspect of causes
of mortality decline. The aim is to examine the extent to
which under-five mortality estimates are reliable using 2003
and 2008/9 KDHS datasets. The analysis is focused on the
bias due to reporting and survey errors such as displacement
of births, omission or nonreporting, and the dates to which
these apply by region and place of residence. The study
determines the extent of variability in under-five mortality
estimates calculated based on 0–4 and 5–9 and 10–14 periods
in the DHS data.