Table 4.
Sleep Questionnaires, Actigraphy, and PSG Data (n=33-36)
| N | Range | Mean | SD | |
|---|---|---|---|---|
|
| ||||
| Sleep Questionnaires: | ||||
| Pittsburgh Sleep Quality Index | 33 | 2-18 | 8.76 | 4.03 |
| Insomnia Severity Index | 35 | 3-26 | 12.57 | 5.57 |
| Epworth Sleepiness Scale | 34 | 0-19 | 9.59 | 4.57 |
|
| ||||
| Actigraphy: | ||||
| Total Sleep Time (TST) | 33 | 105-479 | 343.08 | 80.98 |
| Sleep Latency (SL) | 33 | 14-156 | 46.30 | 32.16 |
| Sleep Efficiency (SE) | 33 | 20-83 | 66.71 | 12.71 |
| Wake After Sleep Onset | 33 | 40-216 | 88.87 | 39.38 |
|
| ||||
| Polysomnography: | ||||
| Total Time in Bed (TIB) | 36 | 417-608 | 493.49 | 41.24 |
| Total Sleep Time | 36 | 238-526 | 406.49 | 63.61 |
| Sleep Latency | 36 | 0-46 | 9.42 | 9.64 |
| Sleep Efficiency | 36 | 55-96 | 82.10 | 8.89 |
| Wake After Sleep Onset | 36 | 17-192 | 77.58 | 40.03 |
| REM Latency (REM L) | 36 | 0-276 | 89.49 | 65.28 |
Notes: Epworth Sleepiness Index evening before PSG; PSG age matched normal values: TST 389-407; SL 8-12; SE 90-92; TIB 422-451; REM L 71-84