Risk Factors for Predicting Mortality and Amputation of Patients with Necrotizing Soft-Tissue Infections: Retrospective Analysis of 111 Cases from a Single Medical Center
Table 1
Demographic characteristics of the patients with NSTI.
Variables
Patients (n)
Frequency (%)
Cumulative frequency (%)
Age (year old)
>60
61
54.95
54.95
≤60
50
45.05
100
Gender
M
83
74.77
74.77
F
28
23.23
100
ICU admission
Y
22
19.82
19.82
N
89
80.18
100
Underlying diseases
HTN
14
12.61
12.61
DM
67
60.36
60.36
Hyperlipidemia
26
23.42
2.42
Kidney dysfunction
15
13.51
13.51
SLE
3
2.70
2.70
COPD
2
1.80
1.80
Cancer
7
6.31
6.31
Wound number and locations
1
96
86.49
86.49
≥2
15
13.51
100
Multiple
9
8.11
8.11
Others
7
6.31
14.41
Lower extremities
24
21.62
36.04
Scrotum/perineum
22
19.82
55.86
Feet
49
44.14
100
LRINEC score
111
0–12 (range)
4.2 ± 3.04 (mean ± SD)
Emergency surgery
Y
10
28.57
28.57
N
25
71.43
100
Mortality rate
Y
11
9.91
9.91
N
100
90.09
100
Amputation rate
Y
38
34.23
34.23
N
73
65.77
100
n, number; NSTIs, necrotizing soft-tissue infections; Y, yes; N, no; ICU, intensive care unit; HTN, hypertension; DM, diabetes mellitus; SLE, systemic lupus erythematosus; COPD, chronic obstructive pulmonary disease; LRINEC, laboratory risk indicator for necrotizing fasciitis.
