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Test-retest reliability of COPD-PS™ scores
| Time 1 Mean (SD) | Time 2 Mean (SD) | Pearson's Test-Retest Reliability | Intraclass Coefficient Reliability | |
|---|---|---|---|---|
| Total Sample (N = 57) | 5.42 (2.5) | 5.42 (2.4) | 0.91 | 0.91 |
| No AO (N = 36) | 4.36 (2.2) | 4.56 (2.4) | 0.89 | 0.88 |
| AO (N = 21) | 7.24 (1.8) | 6.90 (1.8) | 0.88 | 0.86 |
COPD-PS: COPD Population Screener; SD: standard deviation; COPD: chronic obstructive pulmonary disease; AO: fixed airflow obstruction.
