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. Author manuscript; available in PMC: 2020 Mar 24.
Published in final edited form as: Eur J Clin Invest. 2014 May;44(5):493–500. doi: 10.1111/eci.12263

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.