Table 2.

Patient Comorbidities With Bivariate Analyses Examining Relationship to 30-Day Reoperation Rate.

Variable	Patients	Percentage	Reoperation Rate (%)	P
Diabetes				.0002
None	18 252	82.4	3.1
Yes, non-insulin therapy	2656	12.0	4.2
Yes, insulin therapy	1243	5.6	4.9
Smoking				.2431
None	17 563	79.3	3.3
Yes	4588	20.7	3.6
Dyspnea				.7216
None	20 694	93.4	3.4
With moderate exertion	1405	6.3	3.6
At rest	52	0.2	1.9
Ventilator dependent				1.0000
None	22 146	100.0	3.4
Yes	5	0.0	0.0
COPD				.2014
None	21 063	95.1	3.3
Yes	1088	4.9	4.0
Ascites				1.0000
None	22 149	100.0	3.4
Yes	2	0.0	0.0
Congestive heart failure				.0674
None	22 086	99.7	3.4
Yes	65	0.3	7.7
Hypertension requiring medication				.0582
None	9369	42.3	3.1
Yes	12 782	57.7	3.6
Acute renal failure				1.0000
None	22 139	100.0	3.4
Yes	12	0.1	0.0
Dialysis				1.0000
None	22 122	99.9	3.4
Yes	29	0.1	3.5
Disseminated cancer				.0141
None	22 092	99.7	3.4
Yes	59	0.3	10.2
Open/infected wound				.4301
None	22 097	99.8	3.36
Yes	54	0.2	5.56
Chronic steroid use				.0302
None	21 295	96.1	3.31
Yes	856	3.9	4.67
Weight loss >10%				.0557
None	22 108	99.8	3.35
Yes	43	0.2	9.3
Bleeding disorder				.0005
None	21 829	98.6	3.31
Yes	322	1.5	6.83
Preoperative blood transfusion				1.0000
None	22 134	99.9	3.37
Yes	17	0.1	0
Systemic sepsis				.9666
None	22 105	99.8	3.37
SIRS	42	0.2	2.38
Sepsis	3	0.0	0
Septic shock	1	0.0	0

Abbreviations: COPD, chronic obstructive pulmonary disease; SIRS, systemic inflammatory response syndrome.