Assessment of Health-Related Quality of Life after TBI: Comparison of a Disease-Specific (QOLIBRI) with a Generic (SF-36) Instrument

Table 2

Psychometric characteristics of the QOLIBRI and SF-36 subscales and summary scores.

Descriptive statistics	Mean	(SD)	Floor [%]	Ceiling [%]	Skew	Kurtosis	Cronbach's α
QOLIBRI
Physical Problems	67.91	(23.47)	1.4	15.2	.09	.02	.76
Emotions	71.71	(24.69)	2.9	24.5	−.87	.02	.84
Social Relationships	63.65	(22.64)	1.4	14.3	−.41	−.43	.82
Daily Life/Autonomy	66.41	(22.38)	1.3	14.5	−.61	−.11	.87
Self	60.03	(21.96)	2.1	6.2	−.42	−.31	.89
Cognition	61.26	(21.77)	1.0	7.2	−.42	−.34	.89
QOLIBRI Total	64.58	(18.24)	0.4	6.8	−.48	−.04	.82
SF-36
Role Physical	55.13	(38.84)	26.3	35.7	−.21	−1.42	.84
Physical Functioning	76.39	(23.75)	2.3	36.8	−1.15	.71	.93
Bodily Pain	71.28	(26.92)	2.5	36.4	−.61	−.58	.87
Role Emotional	61.01	(39.46)	24.4	46.2	−.46	−1.31	.82
Mental Health	63.90	(20.00)	1.1	8.8	−.46	−.08	.84
Social Functioning	68.01	(25.12)	2.2	22.4	−.59	−.15	.76
Vitality	54.63	(21.51)	4.4	6.5	−.27	−.16	.82
General Heath	63.60	(20.75)	1.1	11.7	−.35	−.33	.76
PCS	46.70	(10.13)	0	0	−.44	−.54	.91
MCS	43.91	(11.94)	0	0	−.40	−.59	.91