Table 1 Sample characteristics (n = 1350), mean ± SD unless otherwise noted
n | mean ± SD | |
|---|---|---|
Age (years) | 1350 | 2.2 ± 0.3 |
Sex n (%) | ||
Boys | 701 (52) | |
Girls | 648 (48) | |
Parental education, n (%) | ||
Less than year 12 | 36 (2.6) | |
Year 12, trade, certificate, apprenticeship, or diploma | 352 (26.1) | |
Tertiary education | 963 (71.3) | |
Accelerometer-derived physical activity (hours/day) | ||
TPA | 755 | 4.2 ± 0.7 |
MVPA | 755 | 1.0 ± 0.8 |
Parent-reported physical activity (hours/day) | ||
TPA | 1345 | 5.2 ± 2.5 |
MVPA | 1332 | 1.6 ± 1.6 |
Parent-reported sleep duration (hours/day) | ||
Total sleep duration | 1345 | 12.1 ± 1.2 |
Night-time sleep duration | 1345 | 10.6 ± 1.1 |
Nap duration | 1329 | 1.5 ± 0.7 |
CSHQ subscales | ||
Bedtime resistance score | 1271 | 9.9 ± 3.4 |
Night-time awakening score | 1259 | 5.0 ± 1.7 |
Sleep onset delay score | 1332 | 1.7 ± 0.7 |
Sleep duration score | 1256 | 3.9 ± 1.3 |
BISQ-R subscale | ||
Bedtime routine score | 1350 | 4.4 ± 0.8 |
Emotional self-regulation score | 1350 | 2.6 ± 0.4 |