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Measurement Properties of the Duke Activity Status Index in Arab Patients with Cardiovascular Disease
Ali Albarrati1, Abeer H Abdulghani1, Monira I Aldhahi2
1Rehabilitation Sciences Department, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia.
Insights
The Arabic Duke Activity Status Index (DASI) accurately measures functional capacity in cardiovascular disease (CVD) patients. This reliable and valid tool can aid in clinical screening for functional capacity in Arabic-speaking populations.
Area of Science:
- Cardiology
- Rehabilitation Medicine
- Health Measurement
Background:
- Cardiovascular disease (CVD) poses a significant global health burden.
- Assessing functional capacity is crucial for managing CVD patients.
- Validated instruments are needed for diverse linguistic populations, including Arabic speakers.
Purpose of the Study:
- To evaluate the measurement properties of the Arabic version of the Duke Activity Status Index (DASI).
- To determine the reliability and validity of the Arabic DASI in patients with cardiovascular disease (CVD).
Main Methods:
- 100 Arab patients with CVD completed the Arabic DASI and underwent an exercise stress test (EST).
- Measurements included metabolic equivalent (MET) and peak oxygen consumption (VO2).
- Reliability (internal consistency, test-retest) and construct validity were assessed.
Main Results:
- The Arabic DASI demonstrated high internal consistency (Cronbach's alpha = 0.87) and excellent test-retest reliability (ICC = 0.93).
- Significant correlations were found between DASI-estimated MET/peak VO2 and EST-derived values (r = 0.58, r = 0.56; p < 0.001).
Conclusions:
- The Arabic DASI is a reliable and valid tool for assessing functional capacity in Arabic-speaking CVD patients.
- The DASI can be utilized as a simple, quick screening tool in clinical settings for functional capacity assessment.
Abstract:
The aim of the study was to examine the measurement properties of the Arabic version of the Duke Activity Status Index (DASI) in patients with cardiovascular disease (CVD). A sample of 100 Arab patients with CVD completed the Arabic version of the DASI and underwent an exercise stress test (EST) on the first visit, and the metabolic equivalent (MET) was obtained from each outcome measure. On the second visit, patients with CVD completed the Arabic version of the DASI along with the global rating of change scale (GRC). Reliability, including the internal consistency, test-retest reliability, and construct validity, were examined. Patients with CVD (86 males), mean (SD) age 54.98 (10.2) years, completed the study. The Cronbach's alpha was 0.87, and the intraclass correlation coefficient (ICC2,1) was 0.93. The estimated MET and peak VO2 obtained from the DASI were correlated with the estimated MET and peak VO2 obtained from the EST (r = 0.58, r = 0.56, all p-values < 0.001). The Arabic version of the DASI is a simple, quick, reliable, and valid measure of functional capacity in Arabic-speaking patients with CVD. The DASI may serve as a screening tool for functional capacity in patients with CVD in clinical settings.
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