Background
Physiologic adaptations occurring across successive pregnancies may increase the risk of adverse cardiovascular health outcomes in later life.
Methods and Results
The association between parity and metabolic syndrome (MetS) was examined among 7,467 Hispanic/Latina women of diverse backgrounds, aged 18–74 years, who participated in the Hispanic Community Health Study/Study of Latinos (HCHS/SOL) from 2008–2011. MetS components were defined according to AHA/NHLBI criteria and included abdominal obesity, elevated triglycerides, low HDL cholesterol, high blood pressure, and elevated fasting glucose. Logistic regression models estimated odds ratios adjusting for socio-demographic, behavioral, and reproductive characteristics. At HCHS/SOL baseline, women reported none (21.1%), one (19.9%), two (25.7%), three (18.6%), four (8.8%), and five or more (5.9%) live births. Compared to women with one birth, those with four births had the highest odds of abdominal obesity (OR=2.0, 95%CI 1.5, 2.8) and overall MetS (OR=1.4, 95%CI 1.0, 2.0) and those with five or more births had the highest odds of low HDL cholesterol (OR=1.5, 95%CI 1.2, 2.0) and elevated fasting glucose (OR=1.6, 95%CI 1.1, 2.4), after adjusting for age, background, education, marital status, income, nativity, smoking, physical activity, menopause, oral contraceptive use, hormone therapy, and field center. Further adjustment for percent body fat attenuated these associations. No associations were observed between parity and elevated triglycerides or high blood pressure.
Conclusions
Higher parity is associated with an increased prevalence of selected components of the MetS among Hispanic/Latina women in the U.S. High parity among Hispanics/Latinas with a high prevalence of abdominal obesity suggests high risk for metabolic dysregulation.