Table 8.

Mean QOLIBRI-KID/ADO scores for groups of participants stratified by sociodemographic and clinical characteristics.

	QOLIBRI-KID/ADO
Group	M	SD	t	df	p	d
Children	76.85	10.71	3.34	291.16	<0.001 *	0.39
Adolescents	72.55	11.46
Female	72.83	11.85	2.52	234.98	0.006 *	0.31
Male	76.21	10.52
TBI within the last four years	72.76	11.70	3.03	288.18	0.003 *	0.35
TBI more than four years ago	76.69	10.57
Low Functional Recovery 1	86.65	1.64	2.39	37.18	0.012 *	0.45
Full Functional Recovery 1	73.87	11.51
Physical, Sensory, and Cognitive problems 2	70.58	11.67	4.04	151.84	<0.001 *	0.54
No Physical, Sensory, and Cognitive problems 2	76.48	10.65
Mild to Severe Anxiety3	69.93	11.34	4.26	152.79	<0.001 *	0.56
No Anxiety 3	75.21	11.03
Mild to Severe Depression 4	68.83	11.22	5.35	211.40	<0.001 *	0.66
No Depression 4	76.03	10.76
Post-Concussion Symptoms 5	59.85	10.10	9.40	42.64	<0.001 *	1.80
No Post-Concussion Symptoms 5	77.22	9.55
Low Learning Rate 6	75.01	11.77	0.65	296.26	0.516	0.07
Higher Learning Rate 6	74.16	10.68

Note. M = mean, SD = standard deviation, df = degrees of freedom, t = t-value, p = p-value (* = p < 0.05), d = Cohen’s d. ¹ KOSCHI (low = 3a/b, 4a/b, high = 5a/5b; ² based on parent-report; ³ GAD-7 (mild to severe ≥ 5, no < 5); ⁴ PHQ-9 (mild to severe ≥ 5, no < 5); ⁵ PCSI-SR8/-SR13 (symptoms = impaired: M + 1SD, not impaired = M and M − 1SD); ⁶ RAVLT (low learning rate = M − 1SD, not impaired: M and M + 1SD).