Table 3.

Results of the Multivariate Regression. Odds Ratios, 95% Confidence Intervals, and P-values are provided.

	Odds Ratio	2.5% Lower Bound	97.5% Upper Bound	P-Value
Obesity	.71	.54	.93	.01
Diabetes	.80	.59	1.08	.10
Elevated op. time	2.44	1.71	3.48	<.001
Smoke	1.40	1.04	1.89	.03
Old age	2.53	1.90	3.36	<.001
Male	1.71	1.30	2.24	.00
Caucasian	.90	.66	1.24	.52
CHF	2.15	.63	7.34	.22
COPD	2.08	1.42	3.04	<.001
Dialysis	4.84	1.86	12.62	<.001
ASA >2	2.32	1.68	3.20	<.001
Steroid use	1.17	.66	2.07	.60
Disseminated cancer	5.36	1.82	15.76	.002
Weight loss	4.68	1.57	14.00	.005
Bleed disorder	1.91	.96	3.78	.06
Hypertension	1.30	.96	1.76	.09
Levels fused	1.22	1.10	1.37	.0004

Key: CHF, congestive heart failure; COPD, chronic obstructive pulmonary disorder; ASA, American Society of Anesthesiologists Class.