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Objective: Body mass index (BMI) has been controversially reported to be positively, inversely, or not associated with vasomotor symptoms (VMS) in postmenopausal women. This study analysed the association between BMI and moderate-to-severe VMS in Thai population.
Methods: A cross-sectional study was conducted among 178 Thai postmenopausal women aged 30-60 years. They were categorized into two groups by BMI. The two groups (normal BMI <25.0 kg/m2 and high BMI ≥25.0 kg/m2) were compared. Modified menopausal rating scale (MRS) was used to assess the severity of VMS. The association between BMI, types and duration of menopause, and VMS were analyzed by chi-square test and t-test analysis. Multiple logistic regression analysis was used to evaluate the associations between BMI, other variables, and severity of VMS.
Results: Each group comprised 89 consecutive postmenopausal women. The percentage of women with moderate-to-severe VMS was significantly higher in the normal BMI group than in the high BMI group (60.9% vs 39.1%, respectively; p= 0.007). The association between normal BMI and moderate-to-severe VMS was statistically signiﬁcant after adjustment for other confounding variables that included age, medical illness, duration or type of menopause and current medications (adjusted odd ratios [OR]: 2.378; 95% confidence interval [CI]: 1.273, 4.447).
Conclusion: Interestingly, Thai postmenopausal women with a normal BMI experience a higher rate of moderate-to-severe VMS than those with a high BMI. The finding indicates that BMI is a risk factor for VMS among Thai postmenopausal women. Healthcare providers should focus on normal BMI Thai postmenopausal women when assessing for and treating VMS.
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