Short birth intervals don't kill women: evidence from Matlab, Bangladesh.

No previously published study has provided evidence to support the frequently made assertion that closely spaced births increase the risk of maternal death. This study reviews the literature for evidence supporting an association between short birth intervals and maternal mortality and presents empirical evidence to address the question of whether short birth-to-conception intervals alter the risk of maternal death. In this nested case-controls study selected from a cohort of women under demographic surveillance in Matlab, Bangladesh, the length of the preceding birth-to-conception interval is found not to affect the risk of maternal mortality. These results do not support the claim that births that are too close increase the risk of maternal death.