Relationships between BMI, waist circumference, hypertension and fasting glucose: Rethinking risk factors in Indigenous diabetes
作者： Hilary Jane Bambrick
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摘要: Objective To determine whether the body mass index (BMI) threshold defined for obesity (30kg/m2) adequately reflects risk in an Aboriginal community with a high rate of Type 2 diabetes. Methods Data about five diabetes factors (age, BMI, waist circumference (WC), hypertension and family history) fasting glucose (FG) were obtained from random sample 117 adults (62 women 55 men) never diagnosed Linear regression between WC FG, sensitivity specificity analyses predicting elevated FG conducted. Results BMI≥30kg/m2 central assessed by (women≥88cm; men≥102cm) strongly positively associated. Among women, was near universal, occurring at BMIs below ‘healthy’ range 20-25. linearly associated other factors. WC≥88cm more sensitive but less specific than BMI≥30 among while BMI≥25 men tended to be both WC≥102cm. Conclusions In is better predictor CVD BMI≥30, which not reliable indicator. good men. Implications: BMI useful clinical tool identify individuals risk, relevant guidelines defining may need reduced population. For could reflect current 88cm remains appropriate. men, reduction ≥25 90cm risk.
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