https://orcid.org/0000-0002-6271-7803
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Larisa Suturina, Daria Lizneva, Ludmila Lazareva, Irina Danusevich, Iana Nadeliaeva, Lilia Belenkaya, Alina Atalyan, Alexey Belskikh, Tatyana Bairova, Leonid Sholokhov, Maria Rashidova, Olga Krusko, Zorikto Darzhaev, Marina Rinchindorzhieva, Ayuna Malanova, Lilia Alekseeva, Eldar Sharifulin, Mikhail Kuzmin, Ilia Igumnov, Natalia Babaeva, Daria Tyumentseva, Ludmila Grebenkina, Nadezhda Kurashova, Marina Darenskaya, Elena Belyaeva, Natalia Belkova, Irina Egorova, Madinabonu Salimova, Ludmila Damdinova, Alexandra Sambyalova, Elena Radnaeva, Olesya Dyachenko, Karina Antsupova, Tatyana Trofimova, Anastasia Khomyakova, Kseniia Ievleva, Frank Z Stanczyk, Richard S Legro, Bulent O Yildiz, Ricardo Azziz, Ethnicity and the Prevalence of Polycystic Ovary Syndrome: The Eastern Siberia PCOS Epidemiology and Phenotype Study, The Journal of Clinical Endocrinology & Metabolism, Volume 110, Issue 1, January 2025, Pages e32–e43, https://doi.org/10.1210/clinem/dgae424
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Abstract
Previous studies have shown that the prevalence of polycystic ovary syndrome (PCOS) may vary according to race/ethnicity, although a few studies have assessed women of different ethnicities who live in similar geographic and socioeconomic conditions.
To determine the prevalence of PCOS in an unselected multiethnic population of premenopausal women.
A multicenter prospective cross-sectional study.
The main regional employers of Irkutsk Region and the Buryat Republic, Russia.
During 2016-2019, 1398 premenopausal women underwent a history and physical exam, pelvic ultrasound, and testing during a mandatory annual employment-related health assessment.
PCOS prevalence, overall and by ethnicity in a large medically unbiased population, including Caucasian (White), Mongolic or Asian (Buryat), and mixed ethnicity individuals living in similar geographic and socioeconomic conditions for centuries.
PCOS was diagnosed in 165/1134 (14.5%) women who had a complete evaluation for PCOS. Based on the probabilities for PCOS by clinical presentation observed in the cohort of women who had a complete evaluation, we also estimated the weight-adjusted prevalence of PCOS in 264 women with an incomplete evaluation: 46.2 or 17.5%. Consequently, the total prevalence of PCOS in the population was 15.1%, higher among Caucasians and women of mixed ethnicity compared to Asians (16.0% and 21.8% vs 10.8%, Pz < .05).
We observed a 15.1% prevalence of PCOS in our medically unbiased population of premenopausal women. In this population of Siberian premenopausal women of Caucasian, Asian, and mixed ethnicity living in similar geographic and socioeconomic conditions, the prevalence was higher in Caucasian or mixed than Asian women. These data highlight the need to assess carefully ethnic-dependent differences in the frequency and clinical manifestation of PCOS.
