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Table 4 Cross-classification analyses for parent-reported (measured versus estimated) and accurately measured (by school nurse) BMI-categories*

From: Validity of parent-reported weight and height of preschool children measured at home or estimated without home measurement: a validation study

  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)
  1. * The IOTF cut-off values for determining underweight, normal weight, overweight, and obesity in the 266 children