Table III.

Risk scores for 30-day post-discharge surgical site infection derived from the multivariate logistic regression final model. The scores were generated as described in the methods.

Variables	Points
Lower extremity revascularization	12
Aortoiliac procedure	9
Obese	9
Operative time >6 hours	5
Female gender	4
Overweight	3
Operative time 4–6 hours	3
Insulin dependent DM	3
Non-insulin dependent DM	2
Smoker	2
Hypertension	2
Critical Limb Ischemia	2
Dyspnea with moderate exertion	2
Groin anastomosis	2
ASA class IV or V	2
COPD	1
Coronary Artery Disease	1
Neurological Disease	1
Age ≥ 65 years	−1
Black race	−2
Sepsis complication	−4
Renal complication	−6
Totally dependent functional status	−6
Prolonged LOS (≥14-days)	−9

DM, Diabetes Mellitus; COPD, Chronic Obstructive Pulmonary Disorder; ASA, American Society of Anesthesiologists; LOS, Length of Stay.