Brazilian version of the Clinical COPD Questionnaire, administered by interview: reliability and validity measurement properties
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...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Pneumologia e Tisiologia
2021-05-01
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| Series: | Jornal Brasileiro de Pneumologia |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-37132021000300201&tlng=pt |
| _version_ | 1818951001816694784 |
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| author | Alexânia de Rê Fernanda Rodrigues Fonseca Ana Paula Queiroz Cardine Martins dos Reis Marina Mônica Bahl Janwillem Kocks Thys van der Molen Rosemeri Maurici |
| author_facet | Alexânia de Rê Fernanda Rodrigues Fonseca Ana Paula Queiroz Cardine Martins dos Reis Marina Mônica Bahl Janwillem Kocks Thys van der Molen Rosemeri Maurici |
| author_sort | Alexânia de Rê |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-20T09:27:33Z |
| format | Article |
| id | doaj.art-082d5bb3cae24c889e9a7eac8f827968 |
| institution | Directory Open Access Journal |
| issn | 1806-3756 |
| language | English |
| last_indexed | 2024-12-20T09:27:33Z |
| publishDate | 2021-05-01 |
| publisher | Sociedade Brasileira de Pneumologia e Tisiologia |
| record_format | Article |
| series | Jornal Brasileiro de Pneumologia |
| spelling | doaj.art-082d5bb3cae24c889e9a7eac8f8279682022-12-21T19:45:09ZengSociedade Brasileira de Pneumologia e TisiologiaJornal Brasileiro de Pneumologia1806-37562021-05-0147310.36416/1806-3756/e20200371Brazilian version of the Clinical COPD Questionnaire, administered by interview: reliability and validity measurement propertiesAlexânia de Rêhttps://orcid.org/0000-0002-8143-1173Fernanda Rodrigues Fonsecahttps://orcid.org/0000-0003-4620-9064Ana Paula Queirozhttps://orcid.org/0000-0002-9118-5674Cardine Martins dos Reishttps://orcid.org/0000-0003-3992-924XMarina Mônica Bahlhttps://orcid.org/0000-0003-1550-9638Janwillem Kockshttps://orcid.org/0000-0002-2760-0693Thys van der Molenhttps://orcid.org/0000-0002-6606-8804Rosemeri Mauricihttps://orcid.org/0000-0001-9627-2112ABSTRACT 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-37132021000300201&tlng=ptPulmonary disease, chronic obstructiveHealth statusPatient reported outcome measuresValidation study |
| spellingShingle | Alexânia de Rê Fernanda Rodrigues Fonseca Ana Paula Queiroz Cardine Martins dos Reis Marina Mônica Bahl Janwillem Kocks Thys van der Molen Rosemeri Maurici Brazilian version of the Clinical COPD Questionnaire, administered by interview: reliability and validity measurement properties Jornal Brasileiro de Pneumologia Pulmonary disease, chronic obstructive Health status Patient reported outcome measures Validation study |
| title | Brazilian version of the Clinical COPD Questionnaire, administered by interview: reliability and validity measurement properties |
| title_full | Brazilian version of the Clinical COPD Questionnaire, administered by interview: reliability and validity measurement properties |
| title_fullStr | Brazilian version of the Clinical COPD Questionnaire, administered by interview: reliability and validity measurement properties |
| title_full_unstemmed | Brazilian version of the Clinical COPD Questionnaire, administered by interview: reliability and validity measurement properties |
| title_short | Brazilian version of the Clinical COPD Questionnaire, administered by interview: reliability and validity measurement properties |
| title_sort | brazilian version of the clinical copd questionnaire administered by interview reliability and validity measurement properties |
| topic | Pulmonary disease, chronic obstructive Health status Patient reported outcome measures Validation study |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-37132021000300201&tlng=pt |
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