Table 2.

Multivariable logistic regression analysis of mortality factors

	Adjusted odds ratio	P
Heart rate	1·00 (0·20, 5·07)	0·976
Intubation	4·76 (0·17, 131·91)	0·357
Loss of consciousness	1·18 (0·16, 9·49)	0·841
Mean arterial pressure	16·81 (2·64, 106·36)	0·012
Oxygen saturation	0·13 (0·01, 1·83)	0·133
Referral	8·56 (1·99, 36·82)	0·001
Respiratory rate	11·53 (1·07, 123·10)	0·040
Severity of head injury	10·30 (1·94, 54·69)	0·011
Pupil size	0·34 (0·03, 3·43)	0·353
Pupil reactivity	65·49 (2·67, 1606·59)	0·011
Treatment	0·11 (0·02, 10·81)	0·142

Values in parentheses are 95 per cent confidence intervals.