Negative Pressure Incision Management System in the Prevention of Groin Wound Infection in Vascular Surgery Patients

Table 2

Patient characteristics.

	Non-NPIMS	NPIMS	value
Number of patients	50	40
Gender
Male^1	34 (68.0%)	30 (75.0%)	.493^3
Female^1	16 (32.0%)	10 (25.0%)	.493^3
Age^2	71.5 ± 11.0	68.1 ± 8.6	.070^4
BMI^2	25.9 ± 5.8	27.4 ± 5.2	.130^4
Smoking^1	18 (36.0%)	23 (57.5%)	.056^3
Diabetes mellitus^1	15 (30.0%)	16 (40.0%)	.375^3
Renal disorder^1	22 (44%)	20 (50%)	.672^3
End-stage renal disease^1	2 (4.0%)	4 (10%)	.400^3
Colonisation of preexisting wounds^1	14 (28%)	10 (25%)	.814^3
Preexisting multiresistant colonies^2	3 (6.0%)	1 (2.5%)	.626^3
ASA classification^1
I	0	0	.728^3
II	19 (38.0%)	14 (35.0%)	“
III	31 (62.0%)	25 (62.5%)	“
IV	0	1 (2.5%)	“
Rutherford scale^1
I	11 (22.0%)	7 (17.5%)	.868^3
II	2 (4.0%)	1 (2.5%)	“
III	7 (14.0%)	10 (25.0%)	“
IV	9 (18.0%)	7 (17.5%)	“
V	17 (34.0%)	12 (30.0%)	“
VI	4 (8.0%)	3 (7.5%)

BMI: body mass index.
ASA classification: American Society of Anaesthesiologists’ classification of physical health.
Data presented as either number (percentage) or mean ± standard deviation.
value using Fisher’s Exact Test.
value using independent samples -test.