Tuberc Respir Dis.  2010 Sep;69(3):171-176.

Validation of the Korean Version of Chronic Obstructive Pulmonary Disease Assessment Test (CAT) and Dyspnea-12 Questionnaire

• Lee S
• Lee JS
• Song JW
• Choi CM
• Shim TS
• Kim TB
• Cho YS
• Moon HB
• Lee SD
• Oh YM

Abstract

BACKGROUND
The object of this study was to assess the validity and reliability of the Korean versions of chronic obstructive pulmonary disease assessment test (CAT) and Dyspnea-12 Questionnaire for patients with chronic pulmonary obstructive disease (COPD).
METHODS
For the 127 COPD patients, we obtained the Korean versions of the 3 questionnaires being tested: St George's Respiratory Questionnaire (SGRQ), CAT, and Dyspnea-12 with spirometric measurements. To assess the validity of CAT and Dyspnea-12, their correlation with SGRQ was evaluated. To assess the reliability of CAT and Dyspnea-12, Cronbach's alpha coefficient was evaluated.
RESULTS
The mean age of patient participants was 68.6+/-7.5 years; 97.6% were male. The SGRQ score was correlated with the scores of the Korean version of CAT (r=0.71, p<0.0001) and Dyspnea-12 (r=0.73, p<0.0001). The Cronbach's alpha coefficient for the CAT and Dyspnea-12 were 0.77 and 0.78, respectively.
CONCLUSION
The Korean versions of CAT and Dyspnea-12 were shown to be valid and reliable for the Korean COPD patients.

Keyword

Pulmonary Disease, Chronic Obstructive; Validation Studies; Questionnaires; CAT; Dyspnea-12

MeSH Terms

Animals
Cats
Humans
Male
Pulmonary Disease, Chronic Obstructive
Surveys and Questionnaires
Reproducibility of Results

Figure

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  Figure 1 Correlation between COPD assessment test (CAT) score and St. George's Respiratory Questionnaire (SGRQ) score (r=0.71, p<0.0001; 127 patients).

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  Figure 2 Correlation between Dyspnea-12 and St. George's Respiratory Questionnaire (SGRQ) (r=0.73, p<0.0001; 127 patients).

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  Figure 3 Cumulative frequency distribution of COPD assessment test (CAT) score in 127 patients.

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  Figure 4 Cumulative frequency distribution of Dyspnea-12 score in 127 patients.

Reference

1. Kim DS, Kim YS, Jung KS, Chang JH, Lim CM, Lee JH, et al. Prevalence of chronic obstructive pulmonary disease in Korea: a population-based spirometry survey. Am J Respir Crit Care Med. 2005. 172:842–847.

2. Korean Statistical Information Service [Internet]. Korea National Statistical Office. c1996-. cited 2008 Mar 20. Daejeon: Korea National Statistical Office;Available from: http://www.kostat.go.kr.

3. Celli BR, Cote CG, Marin JM, Casanova C, Montes de Oca M, Mendez RA, et al. The body-mass index, airflow obstruction, dyspnea, and exercise capacity index in chronic obstructive pulmonary disease. N Engl J Med. 2004. 350:1005–1012.

4. Jones PW, Bosh TK. Quality of life changes in COPD patients treated with salmeterol. Am J Respir Crit Care Med. 1997. 155:1283–1289.

5. Jones PW, Harding G, Berry P, Wiklund I, Chen WH, Kline Leidy N. Development and first validation of the COPD Assessment Test. Eur Respir J. 2009. 34:648–654.

6. Stoller JK, Ferranti R, Feinstein AR. Further specification and evaluation of a new clinical index for dyspnea. Am Rev Respir Dis. 1986. 134:1129–1134.

7. Yorke J, Moosavi SH, Shuldham C, Jones PW. Quantification of dyspnoea using descriptors: development and initial testing of the Dyspnoea-12. Thorax. 2010. 65:21–26.

8. Jones PW, Quirk FH, Baveystock CM. The St George's Respiratory Questionnaire. Respir Med. 1991. 85:Suppl B. 25–31.

9. Kim YS, Byun MK, Jung WY, Jeong JH, Choi SB, Kang SM, et al. Validation of the Korean version of the St. George's Respiratory Questionnaire for patients with chronic respiratory disease. Tuberc Respir Dis. 2006. 61:121–128.

10. Choi JK, Paek D, Lee JO. Normal predictive values of spirometry in Korean population. Tuberc Respir Dis. 2005. 58:230–242.

11. Tu SP, McDonell MB, Spertus JA, Steele BG, Fihn SD. A new self-administered questionnaire to monitor health-related quality of life in patients with COPD. Ambulatory Care Quality Improvement Project (ACQUIP) Investigators. Chest. 1997. 112:614–622.

12. Ferrer M, Alonso J, Prieto L, Plaza V, Monsó E, Marrades R, et al. Validity and reliability of the St George's Respiratory Questionnaire after adaptation to a different language and culture: the Spanish example. Eur Respir J. 1996. 9:1160–1166.