Birth Spacing and Child Survival: A Cautionary Note Regarding the Evidence from the WFS

Abstract In this paper results recently published in this journal concerning the influence of birthspacing on child survival are reviewed, and two reasons are suggested why the statistical associations observed in the data collected in the World Fertility Survey may be, at least in part, spurious. Where reporting is poor, it is argued that errors may often be responsible for a substantial portion of the association between interval length and mortality, and also for the apparent influence of the death of one child on the survival prospects of a younger sibling. Where the reported dates of birth and death are reliable but contraceptive prevalence is high, there is the problem that contraceptive practice is apt to be closely associated with other behaviour likely to have a direct effect on mortality.