Table 2.
Sleep Duration of the Participants.
| Age Group | Time (Hours/Night) * | |||
|---|---|---|---|---|
| <8 h | ≥8 h | Mean ± SD | Median (Interquartile Range) | |
| 12–13 (n = 130) | 53 (40.8) | 77 (59.2) | 8.23 ± 2.50 | 8.23 (7.0–9.0) |
| 14–15 (n = 254) | 137 (53.9) | 117 (46.1) | 7.80 ± 1.61 | 7.86 (7.0–8.4) |
| 16–17 (n = 275) | 176 (64.0) | 99 (36.0) | 7.54 ± 1.31 | 7.57 (6.9–8.2) |
| ≥18 (n = 72) | 39 (54.2) | 33 (45.8) | 7.83 ± 1.18 | 7.82 (7.0–8.6) |
| All (n = 745) | 414 (55.6) | 331 (44.4) | 7.74 ± 1.46 | 7.82 (7.0–8.5) |
Note: * According to the National Sleep Foundation [52], sleep duration for adolescents of less than 8 h per day reflects insufficient sleep.