Prolonged resuscitation of metabolic acidosis after trauma is associated with more complications

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
Independent variable	Regression coefficient (B)	Wald statistic	Significance	Odds ratio	Lower	Upper
Female gender	−0.848^a	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	−0.806^b	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

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