Table 4.

Validity and concordance of weight classification estimated from self-reported and measured values

BMI categories	SR	Measured	Number misclassified
Underweight	1 (0.7 %)	1 (0.7 %)	0
Normal	84 (60.0 %)	79 (56.4 %)	5 (3.5 %)
Overweight	39 (27.9 %)	43 (30.7 %)	4 (2.9 %)
Obese	16 (11.4 %)	17 (12.1 %)	1 (0.7 %)
κ a	0.939 (0.891–0.988)

Data represent count (and %) for measured and self-reported (SR) values

^aA weighted κ value and its corresponding 95 % CI were estimated to measure the level of concordance between both methods