Table 4.

Differences in sleep diary ratings and actigraphy-assessed sleep between adolescents with and without ADHD

	ADHD	Comparison	Group Differences
	M±SD	M±SD	t	p	d
Diary School nighta
School night bedtime	10:14pm±47min	10:22pm±50min	1.32	.19	.16
School day wake time	6:41am±33min	6:53am±36min	2.91	.004	.35
School night SOL (min)	21.93±17.71	17.86±13.30	2.20	.03	.26
School night sleep duration (hr)	7.76±1.00	8.06±0.86	2.61	.01	.31
School night sleep quality	2.34±0.72	2.22±0.62	1.45	.15	.17
School night number wakings	0.56±0.64	0.48±0.65	1.10	.27	.12
School night WASO (min)	6.21±10.09	4.37±7.45	1.75	.08	.21
Diary Weekenda
Weekend bedtime	11:15pm±72min	11:21pm±60min	0.80	.43	.10
Weekend wake time	8:37am±81min	8:45am±68min	0.86	.39	.10
Weekend SOL (min)	20.58±21.90	18.58±21.19	0.77	.44	.09
Weekend sleep duration (hr)	8.55±1.41	8.80±1.08	1.62	.11	.20
Weekend sleep quality	2.05±0.70	2.05±0.63	0.01	.99	.001
Weekend number wakings	0.53±0.68	0.53±0.72	0.08	.94	.01
Weekend WASO (min)	5.21±10.90	6.78±17.70	0.89	.38	.11
Actigraphy School nightb
Sleep onset time	11:04pm±52min	11:00pm±50min	0.61	.54	.07
Sleep offset time	6:45am±31min	6:53am±37min	2.07	.04	.25
TIB (hr)	7.74±0.72	7.93±0.67	2.25	.03	.27
Sleep efficiency	80.73±5.43	81.28±5.23	0.87	.39	.10
WASO (min)	86.09±26.79	87.12±28.20	0.31	.75	.04
Actigraphy Weekendb
Sleep onset time	12:03am±78min	11:58pm±65min	0.55	.58	.07
Sleep offset time	8:38am±73min	8:40am±66min	0.24	.81	.03
TIB (hr)	8.65±1.08	8.75±0.82	0.85	.40	.11
Sleep efficiency	80.26±6.19	80.89±5.27	0.86	.39	.11
WASO (min)	99.01±36.59	97.12±27.10	0.47	.64	.06

Note. ADHD=attention-deficit/hyperactivity disorder. SOL=sleep onset latency. TIB=time in bed. WASO=wake after sleep onset.

^aN=284 for school night daily diary (≥5 nights of data); N=276 for weekend daily diary (≥3 nights of data).

^bN=281 for school night actigraphy (≥5 nights of data); N=249 for weekend actigraphy (≥3 nights of data).