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Table 1 Intraclass correlation coefficients between baseline and follow-up as an assessment of the test-retest reliability of the 45 consecutive patients with COPD enrolled in the study (mean ± standard deviation, and range)

From: The reliability of an arabic version of the self-administered standardized chronic respiratory disease questionnaire (CRQ-SAS)

Domain Test Score
Mean ± standard deviation
(range)
Re-test Score
Mean ± standard deviation
(range)
Intraclass correlation
Dyspnea 4.9 ± 1.3
(2.4 - 7.0)
5.0 ± 1.3
(2.4 - 6.8)
0.97
Fatigue 4.6 ± 1.1
(2.5 - 6.9)
4.7 ± 1.1
(2.6 - 7.0)
0.97
Emotions 5.0 ± 1.0
(3.2 - 7.0)
5.1 ± 1.0
(3.3 - 7.0)
0.97
Mystery 5.2 ± 1.1
(2.8 - 7.0)
5.3 ± 1.0
(3.0 - 6.9)
0.97