Abstract
BackgroundObesity is associated with type 2 diabetes mellitus (T2DM). However, the obesity index that is most closely related to type 2 diabetes remains controversial. Therefore, the aim of this study was to compare the associations of five anthropometric indices (body mass index [BMI], body adiposity index, waist circumference [WC], waist-to-hip ratio, and waist-to-height ratio [WHtR]) with T2DM among Chinese adults divided into four groups according to sex and age.MethodsA total of 4007 adult participants (1669 men and 2338 women) were included in the study. Odds ratios (ORs) and 95% confidence intervals were used with binary logistic regression models to estimate the risk of T2DM for each obesity index. Furthermore, we compared the area under the receiver operating characteristic curve (AUC) of each obesity index for the criterion of T2DM under the influence of risk factors.ResultsWC had the highest OR (3.211 and 1.452) and AUC (0.783 and 0.614) in both age groups of men. However, WHtR (OR = 2.366, AUC = 0.771) and BMI (OR = 1.596, AUC = 0.647) were the optimal criteria for predicting T2DM among females in the 18–59 and ≥ 60 years age groups, respectively.ConclusionsThis study suggests that there is a positive association between obesity-related anthropometric indices and T2DM in different sex and age groups. WC appears to be the optimal anthropometric index for predicting T2DM in men. The optimal obesity indices related to T2DM were WHtR and BMI for women aged 18–59 and ≥ 60 years, respectively.
Highlights
Obesity is associated with type 2 diabetes mellitus (T2DM)
This study aimed to compare the associations of five anthropometric indices (BMI, body adiposity index (BAI), waist circumference (WC), waist-to-hip ratio (WHR), and waist-to-height ratio (WHtR)) with T2DM among Chinese adults divided into four groups according to sex and age and to supplement similar studies in different regions of China
In this study, we compared the associations of five anthropometric indices with T2DM among Chinese adults divided into four groups according to sex and age
Summary
Obesity is associated with type 2 diabetes mellitus (T2DM). the obesity index that is most closely related to type 2 diabetes remains controversial. The aim of this study was to compare the associations of five anthropometric indices (body mass index [BMI], body adiposity index, waist circumference [WC], waist-tohip ratio, and waist-to-height ratio [WHtR]) with T2DM among Chinese adults divided into four groups according to sex and age. A cross-sectional study in the population of northern Iran showed that while WHR (area under the curve [AUC] = 0.7303 in men, AUC = 0.7529 in women) had an appropriate discriminatory capability for T2DM, BAI and BMI did not [11]. A study of people aged > 50 years in Jinan showed that the optimal indicator of the relationship between obesity and T2DM is WHtR (OR = 2.572) and BMI (OR = 2.764) for men and women, respectively [13].
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