Cardiovascular Risk in Reproductive-aged Women With Polycystic Ovary Syndrome According to Body Mass Index: a Systematic Review and Meta-analysis
Abstract Background: To evaluate the association between cardiovascular risk and reproductive-aged women with polycystic ovary syndrome (PCOS) according to body mass index (BMI) categories.Methods: A literature search was conducted in MEDLINE, EMBASE, Cochrane Library and PubMed. Blood pressure (BP) [including systolic BP (SBP), diastolic BP (DBP) and hypertension prevalence] and plasma lipids [triglyceride, high-density lipoprotein (HDL)-cholesterol, nonHDL-cholesterol and low-density lipoprotein (LDL)-cholesterol] were calculated at different BMI levels.Results: SBP [MD (95% CI): 2.96 mmHg (1.62, 4.30), P < 0.001] and DBP [MD (95% CI): 1.64 mmHg (0.03, 3.24), P = 0.046] increased in reproductive-aged women with PCOS, however, hypertension prevalence had no difference [OR (95% CI): 1.56 (0.76, 3.06), P = 0.198]. HDL-cholesterol were [SMD (95% CI): -0.24 (-0.39, -0.09), P = 0.002] lower and triglyceride [SMD (95% CI): 0.37 (0.26, 0.48), P < 0.001] higher in reproductive PCOS women. Besides, LDL-cholesterol [SMD (95% CI): 0.25 (0.17, 0.34), P < 0.001] and nonHDL-cholesterol [SMD (95% CI): 0.38 (0.29, 0.47), P < 0.001] were higher in reproductive-aged PCOS. In the subgroup analysis, SBP and LDL-cholesterol were increased in BMI of < 25 kg/m2 and BMI of ≥ 30 kg/m2, but had no difference in BMI of 25-< 30 kg/m2. Triglyceride and nonHDL-cholesterol increased in all BMI categories. However, DBP and hypertension prevalence had no difference in all BMI categories.Conclusion: High baseline BP and dyslipidemia is represented in reproductive PCOS. Besides, reproductive PCOS women are significantly associated with increased cardiovascular risk independent of BMI categories.