Annals of Thoracic Medicine Official publication of the Saudi Thoracic Society, affiliated to King Saud University
 
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ORIGINAL ARTICLE
Year : 2008  |  Volume : 3  |  Issue : 2  |  Page : 44-47

Validation of the Arabic version of the asthma control test


1 Department of Critical Care, King Fahad Medical City, Riyadh, Saudi Arabia
2 Department of Internal Medicine, Makassed General Hospital, Beirut, Lebanon

Correspondence Address:
H Lababidi
Department of Critical Care, King Fahad Medical City, Riyadh
Saudi Arabia
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DOI: 10.4103/1817-1737.39635

PMID: 19561904

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Purpose: Asthma control test (ACT) has been devised to assess the degree of asthma control in out-patients setting. The aim of this study is to validate the Arabic version of ACT. Materials and Methods: Patients completed the Arabic version of ACT during regular visit to one of two asthma specialists. Spirometry was obtained. The asthma specialist rated asthma control using a 5-point scale and indicated modification in management as step up, same or step down of asthma treatment. Results: 40 patients completed the study, the mean age was 32.6 + 14.0 years, mean FEV1 was 2.7 + 1.0 L (89.2% + 23.6% of predicted). The mean ACT score was 15.9 + 5.8; mean of specialist asthma control rating was 3.4 + 1.0. The internal consistency reliability of the 5-item ACT survey was alpha = 0.92. The correlation was moderate between ACT and specialists rating ( r = 0.482, P = 0.002) and between ACT and treatment modification ( r = -0.350, P = 0.027). The correlation between FEV1 and ACT was low ( r = 0.185, P = 0.259). ACT distinguished between patients with different specialist rating ( F = 3.37, P = 0.02) and the need to change therapy ( F = 3.62, P = 0.037). The areas under the curve (ROC) for ACT, FEV1, and ACT and FEV1 as independent variables were 0.720, 0.721, and 0.766 respectively. All results were comparable to the initial work for development of ACT. Conclusion: The Arabic version of the ACT is a valid tool to assess asthma control. ACT correlates better with asthma specialist rating of asthma control than with FEV1.


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