Table 2.

Behavioral profiles of the sample stratified by insomnia symptoms and objective sleep duration subgroups.

	1. Controls >7 h	2. Controls ≤7 h	3. Insomnia >7 h	4. Insomnia ≤7 h	p
	(n = 188)	(n = 61)	(n = 113)	(n = 35)	1 vs. 2	1 vs. 3	1 vs. 4	3 vs. 4
Internalizing problems
Anxious depressed
T-score, total	53.7 ± 0.4	53.8 ± 0.8	54.3 ± 0.6	54.6 ± 1.0	0.892	0.369	0.401	0.796
Clinically elevated, %	14.9	17.2	20.7	18.4	0.675	0.207	0.621	0.759
Withdrawn depressed
T-score, total	54.8 ± 0.5	54.1 ± 0.9	55.6 ± 0.8	58.4 ± 1.2	0.553	0.318	0.008	0.049
Clinically elevated, %	20.4	20.3	24.3	37.7	0.990	0.445	0.034	0.110
Somatic complaints
T-score, total	54.9 ± 0.5	54.1 ± 0.9	56.7 ± 0.6	57.9 ± 1.2	0.392	0.035	0.020	0.342
Clinically elevated, %	18.4	19.3	24.1	30.5	0.881	0.251	0.122	0.427
Externalizing problems
Thought problems
T-score, total	54.1 ± 0.5	53.6 ± 1.0	56.8 ± 0.6	56.8 ± 1.1	0.607	<0.01	0.019	0.981
Clinically elevated, %	13.9	15.3	30.5	29.8	0.809	<0.01	0.032	0.934
Attention problems
T-score, total	55.2 ± 0.5	55.1 ± 0.9	56.1 ± 0.7	56.3 ± 1.2	0.975	0.281	0.410	0.896
Clinically elevated, %	18.8	16.0	23.3	25.6	0.650	0.353	0.367	0.764
Rule-breaking behaviors
T-score, total	53.4 ± 0.9	53.1 ± 0.7	55.6 ± 0.5	53.5 ± 0.3	0.727	<0.01	0.883	0.051
Clinically elevated, %	12.8	10.0	23.2	19.7	0.598	0.018	0.314	0.621
Aggressive behaviors
T-score, total	52.7 ± 0.4	53.6 ± 0.7	54.9 ± 0.5	55.4 ± 1.0	0.195	<0.01	0.010	0.604
Clinically elevated, %	9.5	17.5	19.1	26.1	0.123	0.024	0.013	0.302

Data are means ± standard errors of total T-scores and clinically elevated T-scores adjusted for sex, age, race, socioeconomic status, body mass index percentile, morning-eveningness questionnaire score, apnea/hypopnea index and periodic limb movement index.