Variables | n | % | Variables | n | % |
---|---|---|---|---|---|
Bedtime | Â | Â | Subjective Sleep quality | ||
 Before 11:00 pm | 550 | 24.8 | Very good | 527 | 23.8 |
 11:00 pm-12:00 am | 622 | 28.1 | Good | 1226 | 55.3 |
 12:00 am-1:00 am | 589 | 26.6 | Bad | 411 | 18.6 |
 After 1:00 am | 454 | 20.5 | Very Bad | 51 | 2.3 |
Sleep latency | Â | Â | Use of sleeping medication | ||
  ≤ 15 mins | 855 | 38.6 | None | 2026 | 91.5 |
 16–30 min | 851 | 38.4 | < 1 /per week | 90 | 4.1 |
 31–60 min | 284 | 12.8 | 1–2 /per week | 81 | 3.7 |
  ≥ 60 mins | 225 | 10.2 | ≥3 / per week | 18 | 0.8 |
Sleep duration | Â | Â | Daytime dysfunction | ||
  < 5 h | 58 | 2.6 | None | 1108 | 50.0 |
 5–6 h | 187 | 8.4 | < 1 /per week | 515 | 23.3 |
 6–7 h | 426 | 19.2 | 1–2 /per week | 347 | 15.7 |
  ≥ 7 h | 1544 | 69.7 | ≥3 / per week | 245 | 11.1 |