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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