컴퓨터 단층촬영을 통한 복부 내장지방량과 단순 비만지표와의 상관관계

초록

Background : A predominant accumulation of adipose tissue in abdominal region confers increased risk of cardiovascular disease. The best technology available for measurement of regional fat distribution is computed tomography. However, computed tomography is limited its use for clinical purposes by cost. The aim of this study is to identify the best simple anthropometric index of abdominal visceral fat accumulation. Methods : To quantify the relationship between anthropometric indices of abdominal obesity (waist circumference, waist-to-hip ratio, waist-to-height ratio, body mass index, abdominal sagittal diameter) and abdominal(total, visceral, subcutaneous) fat areas measured by computed tomography, correlation and multiple regression analyses have been conducted. Results : No significant difference for waist circumference, body mass index and sagittal diameter between men and women have been found. Mean value of waist-to-hip ratio is larger in women, but waist-to-height ratio is larger in men. The mean abdominal total fat area and mean subcutaneous fat area are higher in women. Interestingly, men, despite lower total fat area, have higher mean abdominal visceral area. Thus, the mean visceral fat-to-subcutaneous fat ratio is much higher in men. Abdominal sagittal diameter shows the highest correlation(men: 0.69), women: 0.76) with abdominal visceral fat area in both genders. stepwise analyses have been performed to determine the best simple anthropometric index of abdominal visceral fat accumulation. In men, the significant indices are abdominal sagittal diameter, body mass index, and waist-to-height ratio. In women, abdominal diameter is the only significant index. Conclusion : Abdominal sagittal diameter, in comparison with the waist circumference, waist-to-hip ratio, waist-to-height ratio and body mass index, is the best predictor of the amount of abdominal visceral fat.

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