Table 3 Statistical agreement between measured and self-reported BMI (kg/m2) (N = 2605)
Measured BMI | |||||
|---|---|---|---|---|---|
Self-reported BMI | Underweight | Normal | Overweight | Obese | |
Underweight | 20 (41.7 %) | 32 (2.4 %) | 0 (0.0 %) | 1 (0.3 %) | Overall observed agreement =74.5 %; Weighted kappa statistic = 0.73 |
Normal | 27 (56.3 %) | 1,175 (89.9 %) | 343 (36.0 %) | 10 (3.4 %) | |
Overweight | 1 (2.0 %) | 99 (7.6 %) | 553 (58.0 %) | 101 (34.0 %) | |
Obese | 0 (0.0 %) | 1 (0.1 %) | 57 (6.0 %) | 185 (62.3 % | |
Total | 48 (100 %) | 1307 (100 %) | 953 (100 %) | 297 (100 %) | |