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. Author manuscript; available in PMC: 2015 Mar 1.

Published in final edited form as: Spine J. 2014 Sep 28;15(3):435–442. doi: 10.1016/j.spinee.2014.09.015

Table 4.

Odds ratios and 95% CIs for patient and hospital characteristics in the multivariate analyses predictive of in-patient mortality

Characteristic		Inpatient Mortality
Characteristic		OR	CI	p
Age	0–49^*	-	-	-
	50–64	4.4	1.2–16.3	< 0.05
	65–79	13.6	2.7–67.7	< 0.01
	≥80	20.4	4.0–104.2	< 0.01

Income Quartile	Q1^*	-	-	-
	Q2	3.4	1.8–6.6	< 0.01
	Q3	1.9	0.9–3.8	0.1
	Q4	1.7	0.8–3.7	0.2

Location, Hospital	Rural^*	-	-	-
Location, Hospital	Urban	0.5	0.2–0.8	< 0.01

Congestive Heart Failure		2.9	1.3–6.7	< 0.01
Coagulation Deficiency		2.9	1.1–7.6	< 0.05
Diabetes Mellitus, uncomp.		2.0	1.3–4.6	< 0.05
Weight Loss		3.4	1.6–7.2	< 0.01

^*

Reference group for comparison