Fig. 1From: Test-retest repeatability of child’s respiratory symptoms and perceived indoor air quality – comparing self- and parent-administered questionnairesTest-retest repeatability of reported symptoms from self- and parent-administered questionnaires in primary school age children assessed with Cohen’s kappa coefficients and intra-class correlation (ICC). *Asked with two questions in parent administered questionnaire: stuffy nose (0.51 ICC; 0.41 k) and runny nose (0.38 ICC; 0.36 k). ** Asked with two questions in parent administered questionnaire: itchy eyes (0.54 ICC; 0.52 k) and watery eyes (0.41 ICC; 0.40 k)Back to article page