Table 1 Demographics and clinical history of patients.

Case	Age, sex	Rutherford/WIfI	ABI	SPP	HT	DM	Dyslipidemia	CAD	Af	CVD	COPD	ESRD	Currently smoking	Malignancy	PREVENT-III	Ambulatory status before bypass	Ambulatory status after bypass	GNRI
1	67, male	5/4	0.70	9	yes	no	no	yes	no	yes	no	yes	no	yes kidney	8	ambulatory	wheelchair	87.5
2	82, male	5/4	0	11	yes	yes	no	yes	no	no	yes	yes	yes	no	10	ambulatory	ambulatory	89.0
3	72, male	6/4	0.44	27	yes	yes	no	yes	no	no	no	yes	yes	yes stomach	8	ambulatory	ambulatory	80.2
4	93, female	4/2	0	2	no	yes	no	yes	no	no	yes	yes	no	no	6	ambulatory	ambulatory	83.1
5	79, female	5/3	0.60	17	yes	no	no	no	no	no	no	yes	no	no	7	wheelchair	wheelchair	89.8
6	70, female	4/2	1.12	40	no	no	no	no	no	no	no	yes	no	no	5	ambulatory	ambulatory	89.6
7	88, male	6/4	0	25	no	no	yes	yes	no	yes	?	yes	no	yes mesothelioma	8	ambulatory	-	77.7

WIfI: risk stratification based on Wound, Infection, and foot Infection; ABI: ankle-brachial pressure index; SPP: skin perfusion pressure; HT: hypertension; DM: diabetes mellitus; CAD: coronary artery disease; Af: atrial fibrillation; CVD: cerebrovascular disease; COPD: chronic obstructive pulmonary disease; ESRD: end-stage renal disease; GNRI: geriatric nutritional risk index; PREVENT-III: the Project of Ex-vivo Vein Graft Engineering via Transfection III score