BMI as a predictor of high fasting blood glucose among people living with HIV in the Asia-Pacific region
HIV medicine(2023)
Abstract
Background Non-Asian body mass index (BMI) classifications are commonly used as a risk factor for high fasting blood glucose (FBG). We investigated the incidence and factors associated with high FBG among people living with HIV in the Asia-Pacific region, using a World Health Organization BMI classification specific to Asian populations. Methods This study included people living with HIV enrolled in a longitudinal cohort study from 2003 to 2019, receiving antiretroviral therapy (ART), and without prior tuberculosis. BMI at ART initiation was categorized using Asian BMI classifications: underweight (<18.5 kg/m(2)), normal (18.5-22.9 kg/m(2)), overweight (23-24.9 kg/m(2)), and obese (>= 25 kg/m(2)). High FBG was defined as a single post-ART FBG measurement >= 126 mg/dL. Factors associated with high FBG were analyzed using Cox regression models stratified by site. Results A total of 3939 people living with HIV (63% male) were included. In total, 50% had a BMI in the normal weight range, 23% were underweight, 13% were overweight, and 14% were obese. Median age at ART initiation was 34 years (interquartile range 29-41). Overall, 8% had a high FBG, with an incidence rate of 1.14 per 100 person-years. Factors associated with an increased hazard of high FBG included being obese (>= 25 kg/m(2)) compared with normal weight (hazard ratio [HR] = 1.79; 95% confidence interval [CI] 1.31-2.44; p < 0.001) and older age compared with those aged <= 30 years (31-40 years: HR = 1.47; 95% CI 1.08-2.01; 41-50 years: HR = 2.03; 95% CI 1.42-2.90; >= 51 years: HR = 3.19; 95% CI 2.17-4.69; p < 0.001). Conclusion People living with HIV with BMI >25 kg/m(2) were at increased risk of high FBG. This indicates that regular assessments should be performed in those with high BMI, irrespective of the classification used.
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Key words
Asia-Pacific,BMI,high fasting blood glucose,HIV
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