Abstract
Polycystic ovary syndrome (PCOS) is associated with obesity and low grade inflammation and the risk for cardiovascular disease (CVD) could be increased in PCOS. National register-based study including women with PCOS and no previous diagnosis of CVD, hypertension, or dyslipidemia. PCOS Denmark (N = 18,112) included women with PCOS in the Danish National Patient Register. PCOS Odense University Hospital (OUH, N = 1165) was an embedded cohort including premenopausal women with PCOS and clinical and biochemical examination. Three age-matched controls were included per patient in PCOS Denmark (N = 52,769). The main study outcome was CVD events including hypertension and dyslipidemia defined according to nationwide in- and outpatient hospital contact diagnosis codes and/or inferred from filled medicine prescriptions. The age at inclusion was median (quartiles) 29 (23–35) years and follow up was 11.1 (6.9–16.0) years. The Hazard ratio (95% CI) for development of CVD in PCOS Denmark was 1.7 (1.7; 1.8) (P < 0.001) and the total event rate of CVD was 22.6 per 1000 patient years in PCOS Denmark vs. 13.2 per 1000 patient years in controls (P < 0.001). The median age at diagnosis of CVD was 35 (28–42) years in PCOS Denmark vs. 36 (30–43) years in controls (P < 0.001). Obesity, diabetes, and infertility, and previous use of oral contraceptives were associated with increased risk of development of CVD in PCOS Denmark (P < 0.001). Women in PCOS OUH resembled women in PCOS Denmark regarding risk of CVD. Age, BMI, blood pressure, lipid status, and glycemic status predicted development of CVD in PCOS OUH. The event rate of CVD including hypertension and dyslipidemia was higher in PCOS compared to controls. The risk of developing CVD must be considered even in young women with PCOS.
Highlights
The definition of polycystic ovary syndrome (PCOS) includes irregular ovulation, hyperandrogenism, and/ or polycystic ovaries when other etiologies are excluded [1]
Diabetes, and infertility, and previous use of oral contraceptives were associated with increased risk of development of cardiovascular disease (CVD) in Polycystic ovary syndrome (PCOS) Denmark (P < 0.001)
The event rate of CVD including hypertension and dyslipidemia was higher in PCOS compared to controls
Summary
The definition of polycystic ovary syndrome (PCOS) includes irregular ovulation, hyperandrogenism, and/ or polycystic ovaries when other etiologies are excluded [1]. The pathogenesis of PCOS includes insulin resistance and low grade inflammation [2], and women with PCOS have increased risk of metabolic syndrome [3, 4]. Insulin resistance and low grade inflammation in PCOS. Glintborg et al Cardiovasc Diabetol (2018) 17:37 age-matched controls [4, 10], and the risk for developing CVD in lean women with PCOS needs to be determined. The importance of individual risk markers such as high blood pressure (BP), dyslipidemia, and elevated blood glucose for future development of CVD in PCOS remains to be established. Polycystic ovary syndrome (PCOS) is associated with obesity and low grade inflammation and the risk for cardiovascular disease (CVD) could be increased in PCOS
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