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Fig. 5 | BMC Medicine

Fig. 5

From: Investigating causal relations between sleep duration and risks of adverse pregnancy and perinatal outcomes: linear and nonlinear Mendelian randomization analyses

Fig. 5

Two-sample MR estimates for linear effects of sleep duration on partum-, pregnancy- and offspring-related outcomes, meta-analysing all cohorts. aP-values for Cochran’s Q-statistic testing statistical evidence for between-cohort heterogeneity, in inverse variance weighted, weighted median and MR-Egger, respectively. bResults are ORs for binary outcomes (mean difference in birthweight) per lifetime genetic tendency to 1 h longer during the 24-h duration, with numeric estimates listed in Additional file 1: Table S8. Abbreviations: CI, confidence interval; HDP, hypertensive disorders of pregnancy; MR, Mendelian randomization; OR, odds ratio

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