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. 2012 Jun;72(6):467-74.
doi: 10.4046/trd.2012.72.6.467. Epub 2012 Jun 29.

Validity and Reliability of CAT and Dyspnea-12 in Bronchiectasis and Tuberculous Destroyed Lung

Bo Young Lee  1 , Seohyun Lee, Jae Seung Lee, Jin Woo Song, Sang-Do Lee, Seung Hun Jang, Ki-Suck Jung, Yong Il Hwang, Yeon-Mok Oh
Affiliations

Validity and Reliability of CAT and Dyspnea-12 in Bronchiectasis and Tuberculous Destroyed Lung

Bo Young Lee et al. Tuberc Respir Dis (Seoul). 2012 Jun.

Abstract

Background: The objective of this study was to assess the validity and reliability of the Korean version of chronic obstructive pulmonary disease assessment test (CAT) and Dyspnea-12 Questionnaire for patients with bronchiectasis or tuberculous destroyed lung.

Methods: For 62 bronchiectasis patients and 37 tuberculous destroyed lung patients, 3 questionnaires including St. George's Respiratory Questionnaires (SGRQ), CAT, and Dyspnea-12 were obtained, in addition to spirometric measurements. To assess the validity of CAT and Dyspnea-12, correlation with SGRQ was evaluated. To assess the reliability of CAT and Dyspnea-12, Cronbach's α coefficient was calculated.

Results: The mean ages of the patients were 60.7±8.3 years in bronchiectasis and 64.4±9.3 years in tuberculous destroyed lung. 46.8% and 54.1% were male, respectively. The SGRQ score was correlated with the score of the Korean version of CAT (r=0.72, p<0.0001) and Dyspnea-12 (r=0.67, p<0.0001) in bronchiectasis patients. The SGRQ score was correlated with the score of CAT (r=0.86, p<0.0001) and Dyspnea-12 (r=0.80, p<0.0001) in tuberculous destroyed lung patients. The Cronbach's α coefficient for the CAT and Dyspnea-12 were 0.84 and 0.90 in bronchiectasis, and 0.88 and 0.94 in tuberculous destroyed lung, respectively.

Conclusion: We found that Korean version of CAT and Dyspnea-12 are valid and reliable in patients with tuberculous destroyed lung and bronchiectasis.

Keywords: Bronchiectasis; Dyspnea; Questionnaires; Severity of Illness Index; Tuberculosis; Validation Studies.

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Figures

Figure 1
Figure 1
Correlation between chronic obstructive pulmonary disease assessment test (CAT) score and St. George's Respiratory Questionnaire (SGRQ) total score in bronchiectasis patients (r=0.72, p<0.0001; 62 patients).
Figure 2
Figure 2
Correlation between Dyspnea-12 score and St. George's Respiratory Questionnaire (SGRQ) total score in bronchiectasis patients (r=0.67, p<0.0001; 62 patients).
Figure 3
Figure 3
Cumulative frequency distribution of chronic obstructive pulmonary disease assessment test (CAT) score in 62 bronchiectasis patients.
Figure 4
Figure 4
Cumulative frequency distribution of Dyspnea-12 score in 62 bronchiectasis patients.
Figure 5
Figure 5
Correlation between chronic obstructive pulmonary disease assessment test (CAT) score and St. George's Respiratory Questionnaire (SGRQ) total score in tuberculous destroyed lung patients (r=0.86, p<0.0001; 37 patients).
Figure 6
Figure 6
Correlation between Dyspnea-12 score and St. George's Respiratory Questionnaire (SGRQ) total score in tuberculous destroyed lung patients (r=0.80, p<0.0001; 37 patients).
Figure 7
Figure 7
Cumulative frequency distribution of chronic obstructive pulmonary disease assessment test (CAT) score in 37 tuberculous destroyed lung patients.
Figure 8
Figure 8
Cumulative frequency distribution of dyspnea-12 score in 37 tuberculous destroyed lung patients.
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