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The dose-response relationship between pre-pregnancy physical activity and risk of preeclampsia. The results indicate a 28% lower risk of preeclampsia for each 1 hour/day increment in activity, compared with no activity (OR=0.72; 95% CI: 0.53 to 0.99). Adapted with permission. [Aune D, Saugstad OD, Henriksen T, Tonstad S. Physical activity and the risk of preeclampsia: a systematic review and meta-analysis. Epidemiology. 2014;25(3):331-343.]
