Table 1.

Sex Differences in Sleep Functioning among Children with ADHD

	Females (n = 56)		Males (n = 125)		Sex Differences
Variable	M	SD	M	SD	t	d
Bedtime Resistance	9.04	3.53	7.76	2.61	2.42*	0.41
Sleep Anxiety	6.39	2.58	5.30	1.73	2.90**	0.50
Sleep Onset Delay	1.71	0.87	1.64	0.75	0.56	0.09
Sleep Duration	4.45	1.89	3.78	1.48	2.33*	0.39
Night Wakings	4.14	1.58	3.68	1.37	2.01*	0.31
Parasomnias	9.46	2.35	8.58	1.72	2.52*	0.43
Sleep Disordered Breathing	3.43	1.20	3.17	0.42	1.58	0.29
Daytime Sleepiness	13.71	3.77	12.09	3.23	2.97**	0.46
Total Sleep Disturbance	49.23	11.68	43.37	8.13	3.41**	0.58

Note. ADHD = attention-deficit/hyperactivity disorder.

^*p < .05.

^**p < .01.