International Study of Asthma and Allergies in Childhood (ISAAC) written questionnaire: validation of the asthma component among Brazilian children.

摘要: Written questionnaires have been widely used in epidemiological studies of asthma. However, when translated to another language, they must be validated. The International Study Asthma and Allergies Childhood (ISAAC) written questionnaire had previously validated by a comprehensive study, but this not done Brazil. Our objective was validate the asthma component ISAAC self-applicable following its translation Portuguese. A group 10 pediatricians pediatric allergists graded questions from 0 2, established maximum score for each question. answered parents or guardians asthmatic children, aged 6 7 years old (n = 26) nonasthmatic control children same age 26); 33) adolescents, 13 14 years. Half these individuals responded after 2 4 weeks. This second response allowed evaluation reproducibility questionnaire. global possible 14, cut-off levels 5 were found groups year olds, respectively. There significant agreement between adolescents' responses those their (74.3%); however, discordance observed individual including "wheezing with exercise." In both periods significantly reproducible (Kappa test) (6 olds Kw 1; 0.89). conclusion, proven reproducible, adequate able differentiate asthmatics controls. Adolescents appropriately, however results suggest that underestimate symptoms which interfere little adolescent's daily activities.