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. 2016 Aug 31;125(3):453–459. doi: 10.1289/EHP97

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Adjusted relative risk of early delivery associated with average whole-pregnancy cold (A) and hot (B) by week of delivery. Whole-pregnancy exposure of deliveries during each week was compared with whole-pregnancy exposure truncated up to that week for ongoing pregnancies. Models were adjusted for all covariates in Table 1, humidity, and study site. *Statistical significance at alpha < 0.05.