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Table 3 Odds ratios from regressions for BMI category and selected health conditions for females, controlling for age (N = 942)

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

 

Measured BMI

Self-reported BMI

BMI correction

Weight-only correction

Weight-only correction (simple)

Health condition

OR

95% CI

OR

95% CI

OR

95% CI

OR

95% CI

OR

95% CI

Arthritis

          

Normal weight

1.00

 

1.00

 

1.00

 

1.00

 

1.00

 

Overweight

1.08

0.61 to 1.90

1.04

0.61 to 1.77

1.21

0.69 to 2.11

1.22

0.70 to 2.13

1.02

0.58 to 1.77

Obese (Class I)

1.24

0.66 to 2.34

2.72*

1.56 to 4.74

1.67

0.94 to 2.97

1.70*

0.96 to 3.00

1.54

0.87 to 2.74

Obese (Class II+)

4.97*

2.45 to 10.08

4.29*

1.85 to 9.97

5.04*

2.45 to 10.37

4.92*

2.41 to 10.04

4.36*

2.16 to 8.79

Heart disease

          

Normal weight

1.00

 

1.00

 

1.00

 

1.00

 

1.00

 

Overweight

0.47

0.10 to 2.23

2.50

0.69 to 8.96

1.78

0.48 to 6.65

1.90

0.51 to 7.09

1.97

0.53 to 7.33

Obese (Class I)

1.45

0.34 to 6.16

2.64

0.96 to 7.22

1.63

0.55 to 4.84

1.64

0.54 to 4.95

1.69

0.56 to 5.10

Obese (Class II+)

2.04

0.39 to 10.64

4.54

0.83 to 24.67

3.29

0.82 to 13.14

3.44

0.88 to 13.55

3.43

0.87 to 13.47

Diabetes

          

Normal weight

1.00

 

1.00

 

1.00

 

1.00

 

1.00

 

Overweight

0.71

0.21 to 2.46

1.43

0.41 to 4.94

6.28*

1.67 to 23.56

4.30*

1.25 to 14.77

4.45*

1.29 to 15.32

Obese (Class I)

0.90

0.24 to 3.33

1.85

0.65 to 5.26

3.51*

1.01 to 12.13

2.53

0.83 to 7.71

2.42

0.87 to 7.51

Obese (Class II+)

3.13

0.78 to 12.44

5.26*

1.23 to 22.36

14.56*

3.79 to 55.93

10.29*

3.01 to 35.25

10.55*

3.12 to 35.60

High blood pressure

          

Normal weight

1.00

 

1.00

 

1.00

 

1.00

 

1.00

 

Overweight

1.45

0.70 to 3.01

2.12*

1.12 to 4.00

1.84

0.92 to 3.67

1.94

0.97 to 3.85

2.00*

1.01 to 3.99

Obese (Class I)

2.26*

1.09 to 4.69

3.70*

1.99 to 6.89

3.19*

1.65 to 6.13

3.27*

1.70 to 6.28

3.38*

1.75 to 6.50

Obese (Class II+)

5.28*

2.20 to 12.68

7.15*

2.57 to 19.90

5.50*

2.27 to 13.27

5.54*

2.32 to 13.26

5.55*

2.35 to 13.09

Self-reported health (fair or poor)

          

Normal weight

1.00

 

1.00

 

1.00

 

1.00

 

1.00

 

Overweight

0.70

0.34 to 1.44

1.05

0.51 to 2.17

0.95

0.46 to 1.95

0.98

0.47 to 2.01

1.02

0.49 to 2.10

Obese (Class I)

1.19

0.54 to 2.62

2.25*

1.12 to 4.53

1.31

0.63 to 2.69

1.34

0.65 to 2.75

1.18

0.59 to 2.37

Obese (Class II+)

2.29

0.84 to 6.22

2.55

0.69 to 9.30

2.37

0.86 to 6.50

2.37

0.87 to 6.46

2.70*

1.03 to 7.12

Activity limitation (often or sometimes)

          

Normal weight

1.00

 

1.00

 

1.00

 

1.00

 

1.00

 

Overweight

1.23

0.75 to 2.02

1.31

0.79 to 2.19

0.96

0.58 to 1.57

0.97

0.59 to 1.58

0.90

0.55 to 1.47

Obese (Class I)

1.81

0.96 to 3.43

2.03*

1.15 to 3.57

1.74

0.93 to 3.23

1.74

0.94 to 3.24

1.57

0.84 to 2.94

Obese (Class II+)

3.80*

1.90 to 7.62

3.70*

1.50 to 9.13

3.20*

1.49 to 6.91

3.19*

1.50 to 6.82

3.30*

1.56 to 6.98

  1. *statistically significantly different from Normal Weight Odds Ratio (p < 0.05).
  2. Models control for age. There were so few observations in the underweight category that those individuals are excluded from this analysis. Regression performed only using individuals age 40 or higher.
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