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Validation of the Brazilian version of the childhood asthma control test (c‐ACT)
Author(s) -
Oliveira Suelen G.,
Sarria Edgar E.,
Roncada Cristian,
Stein Renato T.,
Pitrez Paulo M.,
Mattiello Rita
Publication year - 2016
Publication title -
pediatric pulmonology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.866
H-Index - 106
eISSN - 1099-0496
pISSN - 8755-6863
DOI - 10.1002/ppul.23318
Subject(s) - medicine , asthma , spirometry , exhaled nitric oxide , pulmonology , physical therapy , pediatrics
Summary Background Children's perception of their symptoms has proved reliable and relevant to disease management and should be considered when assessing their asthma control. The aim of the study is to validate the Brazilian Portuguese version of the Childhood Asthma Control Test (c‐ACT) in children aged 4–11 years. Methods This is a cross‐sectional study in children diagnosed with asthma undergoing treatment in a pediatric pulmonology outpatient clinic in Porto Alegre, Brazil. The translation and linguistic adaptation of the instrument were performed in accordance with international recommendations for questionnaire validation. Results A total of 105 participants were included, aged 4–11 years. Validity: all correlations between the total score and items on the questionnaire were significant and obtained values of r ≥ 0.3, and c‐ACT means showed statistically significant differences between the GINA categories ( P < 0.01). The controlled asthma group showed significantly higher c‐ACT scores than those of uncontrolled asthma group (controlled 22.0 ± 2.9 vs. uncontrolled 16.3 ± 5.3 P < 0.01); and partially controlled asthma group showed significantly higher c‐ACT scores than those of uncontrolled asthma group (partially controlled 20.0 ± 4.0 vs. uncontrolled 16.3 ± 5.3 P = 0.03). Correlations between the c‐ACT total score and spirometry and nitric oxide were poor (r = 0.020; P = 0.866 and r = 0.035; P = 0.753, respectively). Reliability: the α–C coefficient for the c‐ACT total score was 0.677 (95%CI 0.573–0763). Sensitivity to change had an effect size of 0.8 and an intraclass correlation coefficient of 0.598. No floor or ceiling effects were observed. Conclusion The Brazilian version of the Childhood Asthma Control Test proved to be valid and reliable in children aged 4–11 years. Pediatr Pulmonol. 2016;51:358–363 . © 2015 Wiley Periodicals, Inc.