Translation into Portuguese and validation of the Rhinitis Control Assessment Test (RCAT) questionnaire.
BACKGROUND
The Rhinitis Control Assessment Test (RCAT) is a simple self-administered questionnaire developed to assess control of rhinitis.


OBJECTIVE
Translate into Brazilian Portuguese and validate the RCAT.


METHODS
The RCAT was translated into Portuguese by two translators and subsequently back-translated into English. It was then applied to 141 adolescents with allergic rhinitis.


RESULTS
The internal consistency of the RCAT was 0.73. The questionnaire scores showed significant correlation with total nasal and extra-nasal symptom scores and nasal peak inspiratory flow (r: -0.73, -0.58 and 0.52, respectively; p<0.001) and were significantly different when divided by physician global assessment and total nasal symptom score severity. Cutoff points between 22 and 24 had the higher areas under the ROC curve to identify patients with rhinitis control. Total nasal and extra-nasal symptom scores were significantly different when a cutoff point of 22 was used (median: 4.0 vs. 8.0 and 2.0 vs. 5.0; p<0.001).


CONCLUSIONS
The Brazilian Portuguese version of the RCAT was shown to be a valid and discriminant tool to identify patients with controlled and uncontrolled allergic rhinitis.
Universidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina, Departamento de Pediatria, Disciplina de Alergia, São Paulo, SP, Brazil.
Pedro Henrique
PH
Fernandes
Universidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina, Departamento de Pediatria, Disciplina de Alergia, São Paulo, SP, Brazil.
Fausto
F
Matsumoto
Universidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina, Departamento de Pediatria, Disciplina de Alergia, São Paulo, SP, Brazil.
Dirceu
D
Solé
Universidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina, Departamento de Pediatria, Disciplina de Alergia, São Paulo, SP, Brazil. Electronic address: gfwandalsen@uol.com.br.
Gustavo Falbo
GF
Wandalsen
D000293:Adolescent; D001938:Brazil; D002648:Child; D002908:Chronic Disease; D003430:Cross-Sectional Studies; D003466:Cultural Characteristics; D005260:Female; D006801:Humans; D008297:Male; D015203:Reproducibility of Results; D065631:Rhinitis, Allergic / Q000175:diagnosis*; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D014177:Translations
Allergic rhinitis; Control; Controle; Estudos de validação; Questionnaires; Questionários; Rinite alérgica; Validation studies