Table 3.

Questions with higher index of concordance proposed for the evaluation of validity.

Questions	Kappa value	Interpretation of Kappa value
(A) Do you think your child may have a health problem (reaction) related to food (or drink)?	0.64	Substantial agreement
(B) Which food or drink do you think your child has any reaction to?	0.70	Substantial agreement
(F) What reaction did the child have after eating this particular food (in order of higher frequency of each food)?	0.71	Substantial agreement
(G) Has your child had any reaction when this food only touched her skin?	1.00	Perfect agreement
(H) Was there any need to seek medical care in a hospital?	0.67	Substantial agreement
(L) Did your child eat the same food again?	0.65	Substantial agreement
(M) Did your child have the same reaction upon eating the same food again?	0.76	Substantial agreement
(P) Did your child stop eating the suspect food?	0.60	Moderate agreement
(Q) Has your child had any reaction upon eating any fruit or raw vegetable?	1.00	Perfect agreement