Cardiometabolic Risks in Men With Sisters Diagnosed With PCOS

Overview

Men with sisters diagnosed with polycystic ovary syndrome (PCOS) have an increased risk of obesity, type 2 diabetes, and hypertension. These risks are evident already in early adulthood, highlighting a familial cardiometabolic impact of PCOS.

Background

Cardiometabolic diseases such as obesity, diabetes, and hypertension are major causes of morbidity and mortality globally. PCOS is a common endocrine disorder in women associated with increased cardiometabolic risk factors. Previous smaller studies suggested that brothers of women with PCOS might also have metabolic abnormalities, but findings were inconsistent. This large population-based study investigates cardiometabolic risks in men with sisters diagnosed with PCOS to clarify these associations.

Data Highlights

In a subcohort of men aged 18-20 years (n=147,802), having a sister with PCOS (n=2,970) was associated with increased odds of being overweight (adjusted odds ratio [aOR]: 1.33; 95% CI: 1.19-1.49) and obese (aOR: 1.78; 95% CI: 1.47-2.15), but not with elevated blood pressure.

Key Findings

• Men with a sister diagnosed with PCOS had double the risk of clinical obesity compared to men with unaffected sisters (aHR 2.02).
• Risk of type 2 diabetes was increased by 62% in men with sisters with PCOS (aHR 1.62).
• Hypertension risk was modestly elevated in these men (aHR 1.24).
• In early adulthood (ages 18-20), these men were more likely to be overweight or obese but did not show increased blood pressure.
• Findings support a familial pattern of cardiometabolic risk associated with PCOS beyond affected women.

Clinical Implications

Men with sisters diagnosed with PCOS represent a high-risk group for early cardiometabolic disorders including obesity and type 2 diabetes. Early screening and preventive interventions targeting weight management and metabolic health in these men may reduce future cardiovascular risk. Awareness of familial PCOS impact should inform clinical risk assessments.

Conclusion

This large population-based study demonstrates that having a sister with PCOS is associated with increased cardiometabolic risks in men, evident from early adulthood. These findings underscore the importance of considering familial PCOS effects in clinical practice for early detection and prevention.

References

1. Clinical Research Article -- Cardiometabolic Risks in Males With Sisters Diagnosed With Polycystic Ovary Syndrome