Table 2.
Characteristics of the subgroups based on parent-reported insomnia symptoms and objective sleep duration
Controls with normal sleep duration |
Controls with short sleep duration |
Insomnia symptoms with normal sleep duration |
Insomnia symptoms with short sleep duration |
|
---|---|---|---|---|
n | 137 | 110 | 38 | 42 |
Males (%) | 50·0 | 48·0 | 34·0* | 33·0* |
Age (months) | 107·3 ± 20·8 | 113·8 ± 18·3** | 103·5 ± 24·1 | 111·9 ± 21·3** |
Minority (%) | 23·0 | 21·0 | 20·0 | 16·0 |
BMI (%) | 56·7 ± 29·7 | 65·1 ± 30·1*** | 63·3 ± 31·2 | 58·3 ± 35·2 |
Waist (cm) | 63·3 ± 8·8 | 66·0 ± 10·4*** | 64·7 ± 9·9 | 66·9 ± 13·5† |
TST (min) | 493·3 ± 18·3 | 419·8 ± 43·9 | 490·4 ± 18·7 | 426·6 ± 33·4 |
AHI | 0·6 ± 0·9 | 0·6 ± 0·8 | 0·5 ± 0·6 | 1·1 ± 1·5‡ |
Anx/Dep (T) | 50·8 ± 11·9 | 49·9 ± 11·9 | 58·5 ± 14·0* | 58·7 ± 15·1* |
Values are mean ± SD unless otherwise stated.
TST, total sleep time; AHI, apnea hypopnea index; Anx/Dep, anxiety and depression cluster T score.
P < 0·05 between insomnia symptoms with normal or short sleep duration and controls with normal or short sleep duration.
P < 0·05 between insomnia symptoms or controls with short sleep duration and insomnia symptoms or controls with normal sleep duration.
P < 0·05 between controls with normal sleep duration and controls with short sleep duration.
P < 0·05 between insomnia symptoms with short sleep duration and controls with normal sleep duration.
P < 0·05 between insomnia symptoms with short sleep duration and insomnia symptoms with normal sleep duration and controls.