Table 2.

Agreement (kappa coefficient and Standard Error) between the ISPED, WHO and IOTF references for the classification of participants according to the overweight or obesity thresholds

	Overweight	Obesity
ISPED vs WHO	0.906 (0.007)	0.692 (0.010)
ISPED vs IOTF	0.974 (0.004)	0.873 (0.006)
IOTF vs WHO	0.925 (0.006)	0.731 (0.009)

Standard error in brackets

All kappa coefficients were significant (P < 0.0001)

ISPED Italian Society for Pediatric Endocrinology and Diabetology, WHO World Health Organization, IOTF International Obesity Task Force