Table 3.

Demographics of the study patients (n = 112)

Demographics of the study patients	n	%	Cumulative %
Gender
Male	61	54.5	54.5
Female	51	45.5	100.0
Type of admission
Elective	64	57.1
Emergency	47	42.0	99.1
Transfer from another hospital	1	0.9	100.0
ASA classification
1-2 (normal healthy patient or a patient with mild systemic disease)	1	0.9
3 (a patient with severe systemic disease or a patient over 65 years)	56	50.0	50.9
4-5 (a patient with severe systemic disease that is a constant threat to life or a moribund patient who is not expected to survive without the operation)	30	26.8	77.7
Missing	25	22.3	100.0
Number of co-morbidies
0-1	15	13.4
2-3	42	37.5	50.9
4-5	42	37.5	88.4
6-7	13	11.6	100.0
BMI
Under normal (<18,5)	4	3.6
Normal weight (18.5-25)	44	39.3	42.9
Slightly overweight (25.1-30)	37	33.0	75.9
Overweight (30.1-35)	17	15.2	91.1
Difficult overweight (35.1-40)	3	2.7	93.8
Morbid obesity (>40)	1	0.9	94.6
Missing	6	5.4	100.0
Wound classification
Clean	88	78.6
Clean contaminated	5	4.5	83.1
Contaminated	13	11.6	94.7
Dirty	4	3.6	98.3
Missing	2	1.7	100.0
Top three main diagnosis
Atherosclerosis of arteries of extremities (I70.2)	67	59.8
Abdominal aortic aneurysm without rupture (I71.4)	17	15.2	75.0
Embolism and thrombosis of arteries of the lower extremities (I74.3)	6	5.4	80.4
Other	22	19.6	100.0
Top three main procedures
Angiography to lower limb arteries	23	20.5
Stent-graft replacement to abdominal aortic aneurysm (PDQ05)	16	14.3	34.8
Femoro-popliteal by-pass (PEH56/ PEH57)	14	12.5	47.3
Other	59	52.7	100.0

ASA American Society of Anesthesiologists Physical Status classification, BMI Body Mass Index