J Korean Med Sci.  2008 Aug;23(4):621-627. 10.3346/jkms.2008.23.4.621.

Correlation between the Korean Version of Asthma Control Test and Health-Related Quality of Life in Adult Asthmatics

• Kwon HS
• Lee SH
• Yang MS
• Lee SM
• Kim SH
• Kim DI
• Sohn SW
• Park CH
• Park HW
• Kim SS
• Cho SH
• Min KU
• Kim YY
• Chang YS

• KMID: 1785820
• DOI: http://doi.org/10.3346/jkms.2008.23.4.621

Abstract

The Asthma Control Test (ACT) is a patient-completed questionnaire developed to assess asthma control. Health-related quality of life (HRQL) in asthmatics has shown relatively low correlations with parameters of asthma control and the relationship between the ACT and HRQL in asthmatics is yet unclear. Because revalidations of translated versions of questionnaires are critical for its utilization, we first sought to validate the Korean version of ACT and then to evaluate the relationship between the ACT and HRQL. Patients (n=117) completed the ACT and asthma-related quality of life questionnaire (AQLQ) at 3 physician visits. Pulmonary function was measured and an asthma specialist rated asthma control. The Korean version of ACT was found to be reliable, valid, and responsive to changes in asthma control over time up to three consecutive visits. ACT scores correlated significantly (p=0.001) with symptoms domain (r=0.72), activity domain (r=0.65), emotional domain (r=0.69), and environmental domain (r=0.67) of AQLQ. In conclusion, the Korean version of the ACT was found to be a reliable and valid tool for measuring asthma control, and to correlate well with AQLQ scores. Moreover, the ACT was responsive to changes in AQLQ scores over time.

Keyword

Asthma; Quality of Life; Questionnaires; Validation Studies; Longitudinal Studies

MeSH Terms

Adolescent
Adult
Aged
Aged, 80 and over
Asthma/*psychology/*therapy
Female
Humans
Longitudinal Studies
Male
Middle Aged
*Quality of Life
Questionnaires

Figure

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  Fig. 1 Test-retest reliability of the Asthma Control Test in 19 patients with the same control rating levels at 3 consecutive visits. Intraclass correlation coefficients (ICC) were evaluated between baseline and second visits, second and third visits, and between baseline and third visits.

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