Table 4 Cross-classification analyses for parent-reported (measured versus estimated) and accurately measured (by school nurse) BMI-categories*
| Reported versus measured BMI | |||||
|---|---|---|---|---|---|
| Parental report |
Same category (%) |
Adjacent category (%) |
Extreme category (%) |
Weighted kappa (95% CI) | |
| Weight and height estimated | 55 | 42 | 3 | 0.25 | (0.07 to 0.43) |
| Weight and height measured at home | 72 | 25 | 2 | 0.39 | (0.22 to 0.57) |