Table 2.
Descriptive Characteristics of Nap and Sleep Outcomes by Self-Reported Napping Status.
| All participants (n=414) | No reported nap (n=189) | Reported naps (n=225) | p-value* | |
|---|---|---|---|---|
| Self-reported nap outcome | ||||
| Nap Duration (minute) (mean, SD) | 29.9 (40.9) | –– | 55.0 (41.2) | <.001 |
| Self-reported sleep outcomes | ||||
| Nighttime sleep (hour) (mean, SD) | 6.9 (1.4) | 7.0 (1.4) | 6.8 (1.4) | .304 |
| Total 24 h sleep, (hour) (mean, SD) | 7.4 (1.6) | 7.0 (1.4) | 7.7 (1.6) | <.001 |
| Sleep efficiency (%) (mean SD) | 83.4 (14.3) | 82.7 (14.8) | 83.9 (13.8) | .506 |
| < 85% (n, %) | 197 (47.6) | 93 (49.2) | 104 (46.2) | .545 |
| ≥ 85% (n, %) | 217 (52.4) | 96 (50.8) | 121 (53.8) | |
| Sleep onset latency (minute) (mean, SD) | 21.7 (24.0) | 23.3 (27.1) | 20.3 (21.0) | .156 |
| ≤ 30 min (n, %) | 361 (87.2) | 160 (84.7) | 201 (89.3) | |
| > 30 min (n, %) | 53 (12.8) | 29 (15.3) | 24 (10.7) |
*
Tests for difference by napping status.