Polycystic ovary syndrome (PCOS) is associated with an increased risk of type 2 diabetes mellitus (T2DM) but its association with prediabetes and T2DM is unknown in Qatar. A cross sectional analysis of 3,017 Qatari subjects from the Qatar Biobank, identified 749 women aged 18–40 years, 720 of whom were assessed by the National Institute for Health (NIH) Guidelines for PCOS. Prediabetes (HbA1c 5.7–6.4% and/or impaired fasting glucose (IFG): fasting plasma glucose (FPG) 100–125 mg/dL (5.6–6.9 mmol/L)), and T2DM (fasting plasma glucose > 125 mg/dL (≥7 mmol/L), and/or HbA1c ≥ 6.5%) were determined. The prevalence of prediabetes was 10.6% and the prevalence of undiagnosed diabetes was found to be 4.0% in the total population. Overall, 12.1% of 720 women had PCOS, of whom FPG and HbA1c were available in 62 women with PCOS: 19.4% had prediabetes and 9.7% had diabetes. An adverse cardiovascular risk profile for IFG women compared to normal women was found. Women with PCOS alone had a similar adverse cardiovascular profile as those with IFG alone and T2DM. Thus, the risk of prediabetes and diabetes is increased in Qatari women with PCOS, with an adverse cardiovascular risk profile similar to that seen in prediabetes and T2DM.
Objective To determine if vitamin D deficiency (25-hydroxyvitamin D3 (25(OH)D3)), exacerbated the cardiovascular and metabolic characteristics in women with polycystic ovary syndrome (PCOS).Design Comparative cross-sectional analysis.Methods Demographic and metabolic data from women aged 18-40 years from the Qatar Biobank (QBB) (78 diagnosed with PCOS, 641 controls).Results Vitamin D deficiency (median (range)) was seen in both normal 14.0 (124) ng/ml and the PCOS cohorts 14.0 (62) ng/ml and did not differ between them. Whilst PCOS subjects were heavier with a more metabolic profile (greater systolic and diastolic blood pressure, higher levels of C-reactive protein, androgens, insulin and glycosylated hemoglobin (HbA1c) and decreased high density lipoprotein (HDL) levels, with endothelial dysfunction as determined by pulse wave velocity, there was no correlation (Pearson coefficient) of any these parameters with vitamin D for either the control or PCOS population.Conclusion Vitamin D deficiency was equally prevalent in women with and without PCOS and was not correlated to insulin resistance, metabolic or cardiovascular parameters, suggesting that vitamin D deficiency is not associated with the PCOS phenotype.
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