body mass index;
dual energy x-ray absorptiometry;
fat;
obesity;
sensitivity;
spectrum bias;
D O I:
10.1016/S0895-4356(97)00063-2
中图分类号:
R19 [保健组织与事业(卫生事业管理)];
学科分类号:
摘要:
The objective of this study was to evaluate the accuracy of body mass index (BMI) in the diagnosis of obesity. The relationship of this weight-for-height index to body composition was determined using dual-energy x-ray absorptiometry (DEXA) in 226 Caucasian subjects. BMI-obesity was defined as a BMI greater than 27.8 kg/m(2) in males and greater than 21.3 kg/m(2) in females. BMI-obesity was weakly sensitive (males: 12.5%, females 13.6%) compared with diagnosis by DEXA, defined as percent body fat mass (%BF) greater than 20% in males and greater than 25% in females Conversely, the specificity of BMI-obesity was high (males and females: 100%). When analyzing subgroups of subjects according to weight, sensitivity was higher among heavier subjects than among lighter ones. In both sexes and in all subgroups, the specificity was 100%. The clinical implication of this spectrum bias is that, in men or women weighing less than 80 kg, measures of obesity other than BMI, such as bioelectrical impedance, should be preferred. (C) 1997 Elsevier Science Inc.
机构:
DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710
HLATKY, MA
PRYOR, DB
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h-index: 0
机构:
DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710
PRYOR, DB
HARRELL, FE
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h-index: 0
机构:
DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710
HARRELL, FE
CALIFF, RM
论文数: 0引用数: 0
h-index: 0
机构:
DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710
CALIFF, RM
MARK, DB
论文数: 0引用数: 0
h-index: 0
机构:
DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710
MARK, DB
ROSATI, RA
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h-index: 0
机构:
DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710
机构:
DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710
HLATKY, MA
PRYOR, DB
论文数: 0引用数: 0
h-index: 0
机构:
DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710
PRYOR, DB
HARRELL, FE
论文数: 0引用数: 0
h-index: 0
机构:
DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710
HARRELL, FE
CALIFF, RM
论文数: 0引用数: 0
h-index: 0
机构:
DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710
CALIFF, RM
MARK, DB
论文数: 0引用数: 0
h-index: 0
机构:
DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710
MARK, DB
ROSATI, RA
论文数: 0引用数: 0
h-index: 0
机构:
DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710DUKE UNIV,MED CTR,DEPT COMMUNITY & FAMILY MED,DIV BIOMETRY,DURHAM,NC 27710