Asian Adolescents with Excess Weight are at Higher Risk for Insulin Resistance than Non-Asian Peers
2017
Objective
The purpose of this study was to evaluate whether Asian American adolescents have higher metabolic risk from excess weight than non-Asians.
Methods
Seven hundred thirty-three students, aged 14 to 19 years old, completed a school-based health screening. The 427 Asian and 306 non-Asian students were overall equivalent on age, sex, and family income. Height, weight, waist circumference, percent body fat, and blood pressure were measured. Fasting triglycerides, high- and low-density lipoproteins, glucose, and insulin levels were measured. Asian and non-Asians in lean or overweight/obesity groups were contrasted on the five factors that make up the metabolic syndrome.
Results
Asian adolescents carrying excess weight had significantly higher insulin resistance (IR), triglyceride levels, and waist-height ratios (W/H), despite a significantly lower overall BMI than corresponding non-Asians. Similarly, Asians had a stronger relationship between W/H and the degree of IR than non-Asian counterparts; 35% and 18% of the variances were explained (R2 = 0.35, R2 = 0.18) respectively, resulting in a significant W/H by racial group interaction (Fchange[1,236] = 11.56, P < 0.01).
Conclusions
Despite lower overall BMI, Asians have higher IR and triglyceride levels from excess weight than their non-Asian counterparts. One-size-fits-all public health policies targeting youth should be reconsidered and attention paid to Asian adolescents, including those with mild degrees of excess weight.
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