Table 1 General and sleep characteristics of 415 children
From: Mental health and sleep habits/problems in children aged 3–4 years: a population study
Mean ± SD | Range (min–max ) | |
|---|---|---|
Age (months) | 42.2 ± 1.2 | |
Gender (boy/girl) | 211/204 | |
Ways to spend time (n) | ||
Attending kindergarten | 144 | |
Attending nursery school | 209 | |
Staying at home | 62 | |
Total sleep time (minutes) | ||
Weekdays | 634 ± 64 | 480–780 |
Weekends | 636 ± 66 | 420–780 |
Bedtime (hours: minutes) | ||
Weekdays | 21:01 ± 0:39 | 19:00–23:00 |
Weekends | 21:16 ± 0:44 | 19:00–24:00 |
Wake time (hours: minutes) | ||
Weekdays | 6:59 ± 0:35 | 3:40–9:00 |
Weekends | 7:32 ± 0:46 | 5:30–11:30 |
Naps | ||
Frequency (days/week) | 4.3 ± 2.4 | 0–7 |
Duration (minutes) | 76.7 ± 34.4 | 0–180 |