Effects of interpregnancy interval and outcome of the preceding pregnancy on pregnancy outcomes in Matlab, Bangladesh

Objective To estimate the effects on pregnancy outcomes of the duration of the preceding interpregnancy interval (IPI) and type of pregnancy outcome that began the interval. Design Observational population‐based study. Setting The Maternal Child Health–Family Planning (MCH–FP) area of Matlab, Bangladesh. Population A total of 66 759 pregnancy outcomes that occurred between 1982 and 2002. Methods Bivariate tabulations and multinomial logistic regression analysis. Main outcome measures Pregnancy outcomes (live birth, stillbirth, miscarriage [spontaneous fetal loss prior to 28 weeks], and induced abortion). Results When socio‐economic and demographic covariates are controlled, of the IPIs that began with a live birth, those