Table 2 Comparison between both groups regarding total sleep time, sleep latency, sleep efficiency, and arousal index
| Ā | Group I COPD patients with good sleep quality (nā=ā20) | Group II COPD patients with poor sleep quality (nā=ā40) | Test of significance |
|---|---|---|---|
Total sleep time (min) (mean Ā± SD) | 370.50 Ā± 39.6 | 269.32 Ā± 26.56 | t = 11.75a Pā=ā0.00 |
Sleep latency (min) (mean Ā± SD) | 27.35 Ā± 2.8 | 32.92 Ā± 16.89 | z = 3.02b Pā=ā0.004 |
Sleep efficiency (%) (mean Ā± SD) | 89.55 Ā± 2.58 | 61.6 Ā± 6.76 | t = 17.77a Pā=ā0.00 |
Arousal index (No/h) (mean Ā± SD) | 4.385 Ā± 2.1 | 18.73 Ā± 6.15 | z = ā 9.7b Pā=ā0.00 |