A prospective analysis of recreational physical activity and preeclampsia risk.

摘要: Purpose: Although literature suggests that physical activity may reduce preeclampsia risk, most prior studies have relied on retrospective exposure assessment. We aimed to assess prospectively the relation between recreational before and during pregnancy risk of preeclampsia. Methods: used data from a 1996-2003 cohort study 2241 pregnant western Washington State residents. During structured interviews conducted at 15 wk gestation, average, women reported activities year previous 7 d. Preeclampsia diagnosis was established for 111 using medical record standard guidelines. Results: Recreational in nonstatistically significantly associated with reduced (adjusted odds ratio [OR] any vs none 0.55, 95% confidence interval [CI] 0.30-1.02). Any early not strongly OR = 1.07, CI 0.67-1.69). Compared who no or pregnancy, nonsignificantly lower among those were active only (OR 0.73, 0.30-1.77) both periods 0.76, 0.34-1.73). Those had increased 2.03, 0.71-5.81). Conclusion: These results corroborate case-control suggesting prepregnancy reduces risk. The absence an association early-pregnancy this be due misclassification usual