Elevated Prevalence of Polycystic Ovary Syndrome and Cardiometabolic Disease in South Asian Infertility Patients.

South Asians (SA) develop cardiometabolic disease at elevated rates. We investigate whether reproductive-aged SA women are at higher risk for a precursor condition, polycystic ovary syndrome (PCOS), as compared to Caucasian controls. 52 SA and 52 Caucasian infertility patients from a single institution were included in a cross-sectional analysis. Outcomes were compared using Student's t, Mann-Whitney U, Pearson's Chi-squared and Fisher's exact tests. SA women were younger, with six-fold greater odds of PCOS. SA women were not obese, with similar body mass indices to controls. However, when screened, they demonstrated abundant metabolic disease, including insulin resistance, diabetes and dyslipidemia, and endometrial disease, including hyperplasia and polyps. The SA population was younger with more PCOS and high rates of metabolic and endometrial pathology. These findings, in the context of ethnicity-specific elevations in cardiometabolic risk, highlight the need for comprehensive screening and counseling in this patient population.

Racial comparisons of thyroid function and autoimmunity during pregnancy and the postpartum period.

OBJECTIVE: To evaluate thyroid function and the prevalence of thyroid peroxidase (TPO) antibody and autoimmunity in African-American and white women during pregnancy and the postpartum period. METHODS: Five hundred eighty-nine women were evaluated prospectively. Serum thyroid-stimulating hormone (TSH), free thyroxine (T4), and TPO, Ro, and La antibodies were obtained during pregnancy, at delivery, and postpartum. Levels of hCG were determined during pregnancy. Urinary iodine levels were evaluated in the third trimester in another group of women. All TPO antibody-positive patients were to be followed up at 3 and 6 months postpartum. RESULTS: African-American women had lower TSH values than white women at all times. Thyroid-stimulating hormone increased, and free T4 decreased from the first to third trimester of pregnancy for both groups. African Americans had higher hCG levels than whites in the first trimester but not in the third trimester. There was no difference in urine iodine excretion between African-American and white women. Finally, there was no difference in TPO antibody seropositivity between African-American and white women. Overall, 5 patients (0.8%) were diagnosed with subclinical hypothyroidism during pregnancy. CONCLUSION: Fluctuations in TSH and free T4 during pregnancy parallel reported obstetric values. African Americans demonstrated consistently lower TSH levels than whites. These differences were unexplained by racial differences in either TPO antibody seropositivity, iodine status, or chorionic gonadotropin levels.