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Table 2 Odds ratios from regressions for BMI category and selected health conditions for males, controlling for age (N = 821)

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 0.92 0.35 to 2.46 1.81 0.90 to 3.64 1.78 0.82 to 3.86 1.98 0.93 to 4.23 1.98 0.93 to 4.23
Obese (Class I) 0.98 0.34 to 2.81 2.00 0.86 to 4.67 1.61 0.69 to 3.80 2.07 0.90 to 4.76 2.03 0.87 to 4.74
Obese (Class II+) 1.52 0.43 to 5.33 3.79* 1.40 to 10.28 2.54* 1.00 to 6.41 2.83* 1.09 to 7.33 2.88* 1.15 to 7.23
Heart disease           
Normal weight 1.00   1.00   1.00   1.00   1.00  
Overweight 0.84 0.30 to 2.37 1.23 0.46 to 3.35 1.45 0.47 to 4.51 0.97 0.34 to 2.72 0.97 0.34 to 2.72
Obese (Class I) 1.36 0.41 to 4.53 1.42 0.48 to 4.22 1.21 0.35 to 4.17 0.92 0.28 to 3.02 0.96 0.29 to 3.14
Obese (Class II+) 0.79 0.19 to 3.27 1.82 0.40 to 8.20 2.21 0.62 to 7.95 2.02 0.61 to 6.64 1.82 0.56 to 5.94
Diabetes           
Normal weight 1.00   1.00   1.00   1.00   1.00  
Overweight 0.99 0.33 to 2.95 0.75 0.29 to 1.93 1.30 0.45 to 3.74 1.32 0.47 to 3.70 1.32 0.47 to 3.70
Obese (Class I) 2.90* 1.02 to 8.22 2.05 0.71 to 5.92 2.28 0.76 to 6.82 2.68 0.93 to 7.71 2.78 0.97 to 8.05
Obese (Class II+) 4.81* 1.48 to 15.64 5.89* 2.04 to 17.01 5.40* 1.76 to 16.52 6.95* 2.34 to 20.67 6.07* 2.06 to 17.88
High blood pressure           
Normal Weight 1.00   1.00   1.00   1.00   1.00  
Overweight 1.01 0.50 to 2.04 1.56 0.85 to 2.87 1.28 0.63 to 2.60 1.02 0.53 to 1.96 1.02 0.53 to 1.96
Obese (Class I) 2.98* 1.38 to 6.44 3.46* 1.64 to 7.32 3.30* 1.51 to 7.22 3.40* 1.66 to 6.97 3.47* 1.68 to 7.15
Obese (Class II+) 4.56* 1.81 to 11.50 5.33* 2.04 to 13.95 3.00* 1.19 to 7.54 2.98* 1.21 to 7.39 2.85* 1.18 to 6.88
Self-reported health (fair or poor)           
Normal weight 1.00   1.00   1.00   1.00   1.00  
Overweight 0.75 0.35 to 1.63 0.84 0.42 to 1.66 0.61 0.28 to 1.29 0.58 0.28 to 1.23 0.58 0.28 to 1.23
Obese (Class I) 1.26 0.59 to 2.71 1.65 0.79 to 3.47 1.32 0.61 to 2.88 1.54 0.73 to 3.24 1.61 0.76 to 3.39
Obese (Class II+) 1.33 0.48 to 3.71 1.50 0.57 to 3.96 1.55 0.62 to 3.88 1.93 0.79 to 4.74 1.70 0.70 to 4.16
Activity limitation (often or sometimes)           
Normal weight 1.00   1.00   1.00   1.00   1.00  
Overweight 1.13 0.66 to 1.93 1.08 0.65 to 1.78 0.95 0.55 to 1.64 0.92 0.54 to 1.56 0.92 0.54 to 1.56
Obese (Class I) 1.53 0.79 to 2.96 1.70 0.90 to 3.24 1.18 0.62 to 2.26 1.35 0.72 to 2.56 1.43 0.75 to 2.70
Obese (Class II+) 2.55* 1.15 to 5.65 3.53* 1.51 to 8.25 1.88 0.83 to 4.25 2.38* 1.03 to 5.54 2.01 0.89 to 4.53
  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.