Table 3.

Multivariate analysis, binomial logistic regression results, independent predictors of complications

Independent variable	Regression coefficient (B)	Wald statistic	Significance	Odds ratio	95 % CI for odds ratio
					Lower	Upper
Female gender	−0.848a	4.896	0.027†	0.428	0.202	0.908
ISS	0.084	43.957	<0.0005†	1.087	1.061	1.115
Time to resuscitation	0.031	4.180	0.041†	1.032	1.001	1.063
Presence of femur fracture	−0.806b	6.150	0.013†	0.447	0.236	0.845
Constant	−2.696	19.090	<0.0005	0.067

A 2.7-h increase in time to resuscitation had equivalent odds for sustaining a complication as a 1-unit increase on the ISS

ISS Injury Severity Score

†p < 0.05

^aA negative value for gender suggests females suffer fewer complications than males

^bA negative value for femur fracture suggests that patients with a femur fracture suffer fewer complications than those without