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Table 1 Sensitivity and specificity estimates using self reported BMI and the three correction equations

From: The usefulness of “corrected” body mass index vs. self-reported body mass index: comparing the population distributions, sensitivity, specificity, and predictive utility of three correction equations using Canadian population-based data

MALES – Selected BMI indicators versus measured BMI

 

Normal weight

Overweight

Obese

 

Sens

Spec

Sens

Spec

Sens

Spec

Self-reported

91.03

83.31

73.03

79.84

60.59

98.52

(86.21 to 95.85)

(80.16 to 86.45)

(68.29 to 77.78)

(75.40 to 84.28)

(52.91 to 68.27)

(97.56 to 99.48)

BMI Correction

77.11

92.85

82.18

80.02

79.72

94.87

(70.59 to 83.63)

(90.70 to 95.00)

(77.97 to 86.39)

(75.60 to 84.44)

(73.63 to 85.60)

(92.97 to 96.77)

Weight-only Correction

81.07

89.86

80.15

80.94

75.6

96.82

(74.62 to 87.52)

(87.20 to 92.51)

(75.82 to 84.48)

(76.40 to 85.49)

(68.79 to 82.42)

(95.48 to 98.16)

Weight-only Corr. (Simple)

81.22

89.86

80.15

80.94

75.6

96.82

 

(74.77 to 87.67)

(87.20 to 92.51)

(75.82 to 84.48)

(76.40 to 85.49)

(68.79 to 82.42)

(95.48 to 98.16)

FEMALES – Selected BMI indicators versus measured BMI

 

Normal weight

Overweight

Obese

 

Sens

Spec

Sens

Spec

Sens

Spec

Self-reported

91.57

78.66

63.01

88.97

66.44

99.07

(88.44 to 94.70)

(74.95 to 82.34)

(56.87 to 69.14)

(86.03 to 91.90)

(59.11 to 73.77)

(98.51 to 99.63)

BMI Correction

86.08

87.71

76.88

87.92

81.4

96.55

(81.83 to 90.34)

(84.88 to 90.55)

(71.62 to 82.15)

(84.88 to 90.97)

(75.65 to 87.15)

(95.12 to 97.98)

Weight-only Correction

86.17

88.96

75.31

89

81.62

96.42

(82.13 to 90.21)

(86.28 to 91.63)

(69.96 to 80.66)

(86.13 to 91.87)

(75.87 to 87.36)

(94.98 to 97.86)

Weight-only Corr. (Simple)

86.64

88.21

74.13

89.33

81.7

96.42

 

(82.66 to 90.62)

(85.46 to 90.96)

(68.69 to 79.56)

(86.50 to 92.16)

(75.96 to 87.44)

(94.98 to 97.86)

  1. 95% confidence intervals in parentheses.