• Jana Figurová, Ingrid Dravecká, Martin Javorský, Jana Petríková, and Ivica Lazúrová.
• 1st Department of Internal medicine, Medical faculty of P.J.Šafarik University Košice, Trieda SNP 1, 040 11, Košice, Slovakia. jana.angelovicova@gmail.com.
• Wien. Klin. Wochenschr. 2016 Sep 1; 128 (17-18): 641-8.

ObjectiveTo investigate prevalence of vitamin D deficiency and its relation to clinical, anthropometrical, and biochemical findings in polycystic ovary syndrome (PCOS) and controls.DesignCase-control prospective observational study.SettingsDepartment of Internal medicine, L.P. University hospital.Patient(S)99 PCOS women and 66 controls.Main Outcome Measure(S)25-hydroxyvitamin D level (25(OH)D), anthropometric, endocrine, and metabolic parameters in both groups.ResultsThere was no significant difference in 25(OH)D levels between PCOS women and controls (24.79 ± 10.77 vs 25.07 ± 10.14 ng/ml, p = 0.868) and also in the prevalence of 25(OH)D deficiency in both groups (80 vs 70 %; p = 0.138). Vitamin D-deficient PCOS patients had significantly higher body mass index (BMI), fasting insulin, and homeostasis model assessment-insulin resistance (median [quartiles]: 2.24 [1.38; 3.51] vs 1.23 [0.79; 1.66]; p< 0.05, age-and BMI-adjusted p = 0.036) and borderline higher glycemia (4.7 ± 0.5 vs 4.5 ± 0.4 mmol/l; p = 0.05; p_adj = 0.95) compared with vitamin D-deficient controls. PCOS women with metabolic syndrome (MS) had lower serum 25(OH)D compared with those without MS (20.6 ± 8.3 vs 25.9 ± 11.3 ng/ml, p = 0.049). 25(OH)D correlated positively with high-density lipoprotein cholesterol in all subjects (r = 0.159, p = 0.043) and negatively with luteinizing hormone/follicle-stimulating hormone ratio (r = - 0.211, p = 0.037).ConclusionInsulin resistance and other metabolic abnormalities in PCOS women seem to be related to PCOS rather than to vitamin D deficiency.

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