Table 5

Predictors of 30 month outcome

Predictor variables		GOS	VABS	FSIQ	FFD	PIC/RBRI	Family function	FBI
FBII, Family Burden of Injury Interview; FFS, Family Functioning Scales; GCS, Glasgow Coma Scale score; GOS, Glasgow Outcome Scale; NS, not significant; PIC, Personality Inventory for Children; RBRI, Rowe Behavioural Rating Inventory; SES, socioeconomic status; VABS, Vineland Adaptive Behaviour Scale.
Injury age	β		−0.35			−0.21		0.38
	t Value	NS	−2.65	NS	NS	−1.95	NS	3.29
	p Value		0.011			0.057		0.002
Injury severity (GCS)	β
	t Value	NS	NS	NS	NS	NS	NS	NS
	p Value
Physical impairment (GOS) (acute score)	β		0.29	0.24				−0.31
	t Value	−	1.93	1.85	NS	NS	NS	−1.94
	p Value		0.059	0.070				0.05
SES	β			−0.23	−0.21
	t Value	NS	NS	−2.22	−1.74	NS	NS	NS
	p Value			0.030	0.087
VABS (preinjury score)	β					−0.28	0.24	0.22
	t Value	NS	−	NS	NS	−2.41	1.70	1.74
	p Value					0.020	0.095	0.088
Family function (FFS) (preinjury score)	β					−0.22
	t Value	NS	NS	NS	−	−1.71	−	NS
	p Value					0.094
Family burden (FBII) (acute score)	β					0.32
	t Value	NS	NS	NS	NS	2.54	NS	−
	p Value					0.014
Behaviour (PIC/RBRI) (preinjury score)	β		−0.24				0.45	0.42
	t Value	NS	−1.77	NS	NS	−	3.43	3.74
	p Value		0.080				0.001	0.000
IQ score (acute score)	β	0.54			0.37
	t Value	3.19	NS	−	2.23	NS	NS	NS
	p Value	0.02			0.030
Freedom from Distractibility (acute score)	β		NS	0.40
	t Value	NS		3.39	−	NS	NS	NS
	p Value			0.001
	R ²	0.32	0.44	0.47	0.30	0.41	0.29	0.31