Table 1.

Comparison of CSHQ scale scores between ADHD and control groups

	ADHD	Controls
	Mean ± SD(n)	Mean ± SD(n)	t	p
CSHQ subscales
Bedtime resistance	11.9 ± 3.0(41)	9.4 ± 2.2(62)	4.906	<0.001
Sleep-onset delay*	1.8 ± 0.7(40)	1.7 ± 0.8(61)	0.294	0.769
Sleep duration*	5.2 ± 1.7(41)	4.6 ± 1.7(61)	1.933	0.056
Sleep anxiety	8.0 ± 2.4(41)	6.1 ± 2.0(62)	4.413	<0.001
Night wakings*	5.1 ± 1.9(40)	5.1 ± 1.5(62)	0.085	0.932
Parasomnias	11.9 ± 2.9(41)	9.6 ± 3.3(62)	3.567	0.001
Sleep-disordered breathing*	4.6 ± 1.9(40)	3.9 ± 1.5(62)	2.021	0.046
Daytime sleepiness	15.9 ± 3.5(41)	14.2 ± 3.3(62)	2.402	0.018
Total score	60.0 ± 10.4(41)	51.5 ± 9.2(62)	4.400	<0.001

*Numbers of subjects do not add up to total N because of missing data.