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| PSQI Factor | N | M (SD) |
|---|---|---|
| Sleep Efficiency | 9,248 | 1.5 (1.8) |
| Perceived Sleep Quality | 9,893 | 3.2 (2.0) |
| Daily Disturbances | 9,556 | 2.4 (1.0) |
| Total PSQI Score | 9,907 | 7.0 (3.6) |
Note. Possible ranges for factor scores are 0 to 6 for Sleep Efficiency and Daily Disturbances, and 0 to 9 for Perceived Sleep Quality. For all factors, higher scores indicate more severe sleep disturbance.
