Quality of life of asthmatic children and adolescents: Portuguese translation, adaptation, and validation of the questionnaire "Pediatric Quality of Life (PedsQL) Asthma Module".
OBJECTIVE
The objectives of the study were to translate, validate, and verify the psychometric properties of the Portuguese version of the instrument "Pediatric Quality of Life Asthma Module" (PedsQL Asthma) culturally adapted for the Brazilian culture.


METHODS
After being translated to Portuguese and being culturally adapted, the questionnaire was answered by 200 asthmatic children and adolescents (aged 2-18) as well as the adults responsible for them. Validation required the use of the following instruments: PedsQL Asthma Children (applied to children and adolescents), PedsQL Asthma Parents (applied to adults responsible for children and adolescents), Pediatric Asthma Quality of Life (PAQLQ), Asthma Control Test (ACT) or Childhood Asthma Control Test (C-ACT), as well as socioeconomic and personal information questionnaires. A group of 45 clinically stable children repeated the questionnaires 15-60 days after answering the first questionnaire.


RESULTS
Correlations between the scores of PedsQL Children and PedsQL Parents (r  =  0.67), PedsQL Children and PAQLQ (r  =  0.66), and PedsQL Parents and PAQLQ (r  =  0.64) were moderate and significant. Correlations were higher for men (r  =  0.72) when analyzing the children's and parents' answers to PedsQL according to gender. The 5- to 7-year-old age group had the strongest correlations with PAQLQ (r  =  0.79). Cronbach's alpha coefficient for PedsQL Children and Parents had values of 0.85 and 0.87, respectively. A high concordance was observed in both tests at different times, with kappa values of 0.89 and 0.87 for PedsQL Children and Parents, respectively.


CONCLUSION
The instrument used in this study was considered valid, consistent, and reproducible and has acceptable psychometric properties for the Brazilian population.
['Monteiro|Fernanda Pereira|FP|', 'Solé|Dirceu|D|', 'Wandalsen|Gustavo|G|']
D000293:Adolescent D001249:Asthma D001938:Brazil D002648:Child D003466:Cultural Characteristics D005260:Female D006801:Humans D008297:Male D011594:Psychometrics D011788:Quality of Life D057566:Self Report D014177:Translations
quality of life Adolescent questionnaires asthma child validation studies