Country-specific and pooled estimates presented as ORs and 95% CIs (mean 1.96 s.e.m.) obtained from conditional logistic regression models showing the association of an increase in temperature (from the 75th to the 99th percentile) the week before birth (lag 06 d) on antepartum stillbirths (n = 2,152). In the casecrossover design, each case serves as its own control. Control days were defined as the same day of the week within the same month as childbirth. Data were obtained from 16 hospitals in four different countries, including Benin (four hospitals), Malawi (four hospitals), Tanzania (four hospitals) and Uganda (four hospitals). The vertical dashed line represents the value of the OR obtained from the meta-analyses, and the size of the square corresponds to the weight contribution to the meta-analyses. Estimates with smaller CIs had larger squares and contributed with more weight to the meta-analyses.
