Relationship of subclinical hypothyroidism and obesity in polycystic ovarian syndrome patients

Objectives: To determine the prevalence of obesity and its relationship with subclinical hypothyroidism in women with polycystic ovarian syndrome (PCOS). To compare the clinico-biochemical parameters of obese and lean PCOS patients. Materials and Methods: A total of 287 women with PCOS were included in this study after consent. The demographic, anthropometry, clinical, and hormonal (thyroid-stimulating hormone [TSH] and total testosterone) parameters were recorded along with pelvic ultrasonography (USG) for all PCOS subjects. They were divided into lean (body mass index [BMI] between 18.5 and 22.9) and overweight (BMI >/=23), and the number of subclinical hypothyroid patients were calculated in each group. The clinico-biochemical parameters of both groups were compared. Results: The majority (61%) of our patients were overweight. There was no significant difference in the prevalence of subclinical hypothyroidism between overweight and lean PCOS patients. The obese PCOS patients were older than lean PCOS patients, and they had higher serum testosterone with elevated systolic and diastolic blood pressure (BP). Conclusion: The majority of our patients were found to be overweight and there was no association between obesity and subclinical hypothyroidism among PCOS patients.