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. 2016 Aug 5;125(1):8–14. doi: 10.1289/EHP171

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Association between maximum weekly temperature 2–8 weeks postconception and congenital heart defects, Quebec, April through September, 1988–2012. Note: Prevalence ratio (bold central line) and 95% confidence interval (light outer bands) for maximum temperature during each week postconception, relative to 20°C, adjusted for maternal age, comorbidity, parity, multiple birth, socioeconomic area deprivation, month and period of conception, and humidity. Associations at weeks 3, 5, and 7 are not shown to conserve space, but reflect the same trend.