Abstract
This study was performed to assess insulin resistance (IR) in lean women with polycystic ovary syndrome (PCOS). Retrospective analysis of 100 consecutive lean (body mass index <25 kg/m2) PCOS subjects was performed. Subjects were divided into two groups according to homeostasis model assessment IR index (HOMA-IR), as IR + and IR−. A HOMA-IR value >2.5 was used to indicate IR. A total of 100 lean PCOS subjects were enrolled in the study, of which 47% were insulin resistant. Comparison of group means showed significantly higher values for waist-to-hip ratio (WHR), diastolic blood pressure and Ferriman–Gallwey score (FGS) in IR + group. HOMA-IR values were found to be positively correlated with WHR (r = 0.500, p < 0.01), systolic blood pressure (r = 0.265, p < 0.01), diastolic blood pressure (r = 0.273, p < 0.01), estradiol levels (r = 0.218, p < 0.05), FGS (r = 0.456, p < 0.01) and total testosterone levels (r = 0.291, p < 0.01). When evaluating PCOS subjects, the insulin resistant group should be separated as unique and IR should also be evaluated in lean women with PCOS.
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