Table 7.

Differences in Maladaptive Behavior Severity Based on Sleep Duration Subgroups. (A) Results Comparing Scores for Child Behavior Checklist (CBCL) T Scores across Children with Sleep Duration Reported in the (1) Lower 5th Percentile, (2) between the 5th and 95th Percentile, and (3) Upper 95th Percentile of the Distribution. (B) Analysis of Covariance and Age-Adjusted Mean CBCL T Scores between Children with Sleep Duration Reported in the (1) Lower 5th Percentile, and (2) Upper 95th Percentile of the Distribution. Score Ranges are Included in Parentheses Next to the Variable Description

Child Behavior Checklist T scores	n1	n2	n3	Chi2 (df = 2)	P-value	eta2
A
Activities (0–65)*	149	1,744	150	6.79	3.4 × 10−2	0.0033
ADD/ADHD (50–80)	179	2,224	301	20.46	<1.0 × 10−4	0.0076
Affective Problems (50–95)	179	2,224	301	71.10	<1.0 × 10−4	0.0263
Aggressive Behavior (50–100)	179	2,224	301	9.30	9.6 × 10−3	0.0034
Anxiety Problems (50–95)	179	2,225	301	27.30	<1.0 × 10−4	0.0101
Anxious/Depressed (50–98)	179	2,226	301	25.35	<1.0 × 10−4	0.0094
Attention Problems (50–100)	179	2,227	301	18.68	<1.0 × 10−4	0.0069
Conduct Problems (50–93)*	150	1,754	153	14.85	6.0 × 10−4	0.0072
Emotionally Reactive (50–93)**	29	471	148	3.92	1.4 × 10−1	0.0061
Externalizing Problems (32–97)	179	2,227	301	10.43	5.4 × 10−3	0.0039
Internalizing Problems (33–90)	179	2,227	301	11.70	2.9 × 10−3	0.0043
Oppositional Defiant (50–80)	179	2,225	301	6.62	3.7 × 10−2	0.0024
Pervasive Developmental (50–95)**	29	471	148	9.72	7.8 × 10−3	0.0150
Rule Breaking (50–84)*	150	1,756	153	8.44	1.5 × 10−2	0.0041
School Problems (0–99)*	133	1,635	137	2.23	3.3 × 10−1	0.0012
Sleep Problems (50–100)**	29	468	148	35.89	<1.0 × 10−4	0.0557
Social Problems (50–91)*	150	1,755	153	8.48	1.4 × 10−2	0.0041
Somatic Complaints (50–94)	179	2,227	301	4.48	1.1 × 10−1	0.0017
Somatic Problems (50–93)*	150	1,753	153	7.09	2.9 × 10−2	0.0035
Thought Problems (50–91)*	150	1,756	152	58.16	<1.0 × 10−4	0.0283
Withdrawn (50–100)	179	2,227	301	10.56	5.1 × 10−3	0.0039
Total Competence (0–66)*	129	1,602	131	2.95	2.3 × 10−1	0.0016
Total Problems (27–92)	179	2,227	301	30.55	<1.0 × 10−4	0.0113
Child Behavior Checklist T scores	F (df)		P-value	eta2	Mean 5th %ile	Mean 95th %ile
B
Activities (0–65)*	158 (298)		9.1 × 10−1	0.07	38.11	40.28
ADD/ADHD (50–80)	2.59 (479)		1.0 × 10−3	0.08	63.82	60.98
Affective Problems (50–95)	5.58 × (479)		<1.0 × 10−5	0.15	66.82	59.59
Aggressive Behavior (50–100)	1.49 (479)		1.1 × 10−1	0.05	61.66	58.64
Anxiety Problems (50–95)	2.62 (479)		8.0 × 10−4	0.08	62.65	59.60
Anxious/Depressed (50–98)	2.93 (479)		2.0 × 10−4	0.09	60.31	57.69
Attention Problems (50–100)	4.32 (479)		<1.0 × 10−5	0.12	68.78	65.01
Conduct Problems (50–93)*	1.22 (302)		2.6 × 10−1	0.05	59.29	56.66
Emotionally Reactive (50–93)**	2.46 (176)		6.4 × 10−2	0.04	64.84	59.67
Externalizing Problems (32–97)	1.52 (479)		9.2 × 10−2	0.05	59.11	55.54
Internalizing Problems (33–90)	1.73 (479)		4.2 × 10−2	0.05	62.73	59.21
Oppositional Defiant (50–80)	1.33 (479)		1.8 × 10−1	0.04	60.22	58.06
Pervasive Developmental (50–95)**	4.91 (176)		2.7 × 10−3	0.08	76.56	70.18
Rule Breaking (50–84)*	0.74 (302)		7.3 × 10−1	0.03	56.70	55.12
School Problems (0–99)*	2.32 (269)		6.2 × 10−3	0.11	34.31	36.06
Sleep Problems (50–100)**	13.53 (176)		<1.0 × 10−5	0.19	66.13	54.72
Social Problems (50–91)*	1.46 (302)		1.3 × 10−1	0.06	65.16	63.49
Somatic Complaints (50–94)	0.84 (479)		6.4 × 10−1	0.03	58.31	56.76
Somatic Problems (50–93)*	0.68 (302)		7.8 × 10−1	0.03	56.92	55.16
Thought Problems (50–91)*	5.55 (301)		<1.0 × 10−5	0.20	72.11	65.67
Withdrawn (50–100)	4.98 (479)		<1.0 × 10−5	0.14	67.12	62.29
Total Competence (0–66)*	0.74 (259)		7.3 × 10−1	0.04	30.92	33.16
Total Problems (27–92)	2.91 (479)		2.0 × 10−4	0.09	65.91	61.06

^*Indicates the variable was only available for children evaluated using the CBCL for ages 6-18.

^**Indicates the variable was only available for children evaluated using the CBCL for ages 2-5.

df, degrees of freedom.