Table 5.

Multivariate analysis of complications following primary posterior lumbar spine fusion surgery

Multivariate regression: risk factors for in-hospital mortality
Category	Variable	Odds ratio	95 % Confidence intervals		P value
Complications (reference: absence of complication)	Cerebrovascular infarction	19.14	9.92	36.91	<0.0001
	Sepsis	19.81	12.76	30.76	<0.0001
	Myocardial infarction	7.54	4.45	12.76	<0.0001
	Cardiac complications	3.46	2.43	4.94	<0.0001
	Pneumonia	3.04	1.91	4.83	<0.0001
	Pulmonary embolism	10.10	5.39	18.92	<0.0001
	Shock	150.96	92.37	246.71	<0.0001