Skip to main content

Table 3 Cutoff estimation and AUC comparison between classifiers in adult men

From: Accuracy of body fat percent and adiposity indicators cut off values to detect metabolic risk factors in a sample of Mexican adults

 

Body fat %

BMI (kg/m2)

Waist (cm)

 

Estimated

Reference I

Reference II

Estimated

Overweight

Obesity

Estimated

Reference

NCEP/ATP III

Glucose ≥ 100 mg/dL; n = 1,439

Cutoff

30.5 (30.1, 30.9)

20

25

27.0 (26.7, 27.2)

25

30

94.0 (93.0, 95.0)

90

102

Sensitivity

58.3 (55.8, 61.1)

95.1 (92.8, 97.1)

87.0 (83.6, 90.3)

60.9 (57.3, 63.4)

80.6 (76.5, 84.4)

27.4 (22.8, 31.7)

60.6 (57.0, 64.2)

76.0 (71.9, 80.3)

28.9 (24.6, 33.6)

Specificity

58.4 (55.7, 61.0)

10.2 (8.5, 12.2)

25.3 (22.7, 28.2)

60.9 (57.3, 63.5)

37.9 (34.8, 40.9)

85.1 (83.0, 87.3)

59.9 (57.0, 64.4)

43.1 (40.2, 46.1)

85.2 (82.9, 87.5)

AUC

0.611 (0.579, 0.644)

0.639 (0.607, 0.670)

0.647b (0.616, 0.678)

Triglycerides ≥ 150 mg/dL; n = 1,439

Cutoff

29.6 (29.2, 30.0)

20

25

26.3 (26.1, 26.6)

25

30

92.0 (92.0, 93.0)

90

102

Sensitivity

58.7 (55.5, 61.4)

96.6 (95.3, 97.7)

86.5 (84.2, 88.9)

62.3 (59.7, 65.3)

77.5 (74.7, 80.1)

21.8 (19.1, 24.6)

63.0 (57.1, 65.2)

71.3 (68.5, 74.2)

22.1 (19.5, 24.6)

Specificity

58.8 (55.5, 61.4)

17.1 (14.3, 20.4)

35.2 (30.9, 39.6)

62.3 (59.8, 65.4)

49.1 (45.0, 53.2)

87.3 (84.5, 90.0)

60.0 (57.7, 64.6)

52.5 (48.2, 56.6)

86.8 (83.9, 89.5)

AUC

0.635 (0.605, 0.665)

0.674a (0.645, 0.703)

0.656b (0.627, 0.686)

HDL < 40 mg/dL; n = 1,422

Cutoff

29.6 (29.2, 30.1)

20

25

26.5 (26.2, 26.7)

25

30

92.0 (92.0, 93.0)

90

102

Sensitivity

55.7 (52.9, 58.2)

93.3 (91.6, 95.0)

82.0 (79.4, 84.6)

56.0 (53.6, 58.8)

72.2 (69.0, 75.1)

21.4 (18.6, 24.1)

59.5 (53.2, 61.6)

68.0 (64.7, 71.1)

22.9 (20.2, 25.5)

Specificity

55.7 (52.9, 58.3)

12.5 (9.9, 15.3)

28.9 (25.1, 32.8)

56.1 (53.5, 58.8)

41.2 (36.9, 45.6)

86.6 (83.8, 89.4)

55.5 (53.6, 60.8)

48.2 (44.3, 52.5)

88.5 (85.8, 91.1)

AUC

0.583 (0.553, 0.614)

0.587 (0.556, 0.617)

0.607b,c (0.577, 0.637)

SBP > 140 or DBP > 90 mmHg; n = 1,439

Cutoff

30.4 (29.9, 30.8)

20

25

27.2 (27.0, 27.5)

25

30

94.0 (94.0, 95.0)

90

102

Sensitivity

55.7 (52.9, 58.6)

94.8 (92.2, 97.1)

84.1 (80.3, 87.7)

63.4 (60.2, 66.0)

85.4 (81.6, 89.3)

31.7 (25.6, 37.5)

63.8 (57.6, 65.4)

77.3 (72.5, 81.9)

31.1 (26.2, 35.9)

Specificity

55.7 (53.0, 58.6)

9.8 (8.1, 11.6)

24.1 (21.5, 26.5)

63.3 (60.3, 66.1)

38.3 (35.8, 41.2)

85.4 (83.3, 87.3)

59.6 (57.6, 64.8)

42.6 (39.7, 45.3)

84.7 (82.6, 86.6)

AUC

0.578 (0.540, 0.604)

0.680a (0.635, 0.695)

0.650b, c (0.602, 0.664)

  1. Sensitivity and Specificity expressed as percentages. Bootstrap percentile 95% confidence intervals in parentheses for optimized cutoff, sensitivity and specificity. Asymptotic normal 95% confidence intervals in parenthesis for the AUC. ap<0.05 BMI vs Body fat AUC bp<0.05 Waist vs Body fat AUC cp<0.05 Waist vs BMI AUC. DBP = Diastolic Blood Pressure; SBP = Systolic Blood Pressure.
Back to article page

BMC Public Health

ISSN: 1471-2458

Contact us