Brazilian version of the Clinical COPD Questionnaire, administered by interview: reliability and validity measurement properties.
J Bras Pneumol
; 47(3): e20200371, 2021.
Article
em En, Pt
| MEDLINE
| ID: mdl-34076173
ABSTRACT
OBJECTIVE:
To test the reliability, validity, and interpretability of the Brazilian version of the Clinical COPD Questionnaire (CCQ) in patients with COPD.METHODS:
Fifty patients with COPD completed the CCQ by interview on two occasions. At the first visit, the CCQ was administered twice, by two different raters, approximately 10 min apart; the patients also underwent spirometry and were administered the COPD Assessment Test, the modified Medical Research Council scale, and Saint George's Respiratory Questionnaire (SGRQ). At the second visit (1-2 weeks later), the CCQ was readministered. We tested the hypothesis that the CCQ total score would correlate positively with the total and domain SGRQ scores (r ≥ 0.5).RESULTS:
Of the 50 patients, 30 (60%) were male. The mean age was 66 ± 8 years, and the mean FEV1 was 44.7 ± 17.9% of the predicted value. For all CCQ items, Cronbach's alpha coefficient (95% CI) was 0.93 (0.91-0.96). To analyze the interrater reliability and test-retest reliability of the CCQ, we calculated the two-way mixed effects model/single measure type intraclass correlation coefficient (0.97 [95% CI 0.95-0.98] and 0.92 [95% CI 0.86-0.95], respectively); the agreement standard error of measurement (0.65 for both); the smallest detectable change at the individual level (1.81 and 1.80, respectively) and group level (0.26 and 0.25, respectively); and the limits of agreement (-0.58 to 0.82 and -1.14 to 1.33, respectively). The CCQ total score correlated positively with all SGRQ scores (r ≥ 0.70 for all).CONCLUSIONS:
The Brazilian version of the CCQ showed an indeterminate measurement error, as well as satisfactory interrater/test-retest reliability and construct validity.
Texto completo:
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doença Pulmonar Obstrutiva Crônica
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
/
Qualitative_research
Aspecto:
Patient_preference
Limite:
Aged
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
/
Pt
Revista:
J Bras Pneumol
Ano de publicação:
2021
Tipo de documento:
Article