The Evaluation of Risk Factors for Postoperative Infectious Complications after Percutaneous Nephrolithotomy
Table 2
Comparison of clinical factors between patients with and without postoperative SIRS.
SIRS
No SIRS
Continuous variables
Age (year): mean ± SD
53.13 ± 12.61
50.29 ± 11.84
0.179
Stone size (cm): mean ± SD
3.30 ± 1.45
2.72 ± 1.20
0.012
Day of antibiotic use before surgery (day): mean ± SD
0.51 ± 1.69
0.55 ± 1.34
0.863
Surgery time (min): mean ± SD
133.41 ± 52.47
133.75 ± 53.90
0.971
Temperature before Surgery: mean ± SD
36.96 ± 0.22
36.96 ± 0.21
0.081
Blood WBC (/L): ± SD
6.47 ± 1.83
6.07 ± 1.99
0.254
Hemoglobin (g/L): mean ± SD
138.23 ± 14.50
134.39 ± 24.26
0.329
Urine WBC : mean ± SD
501.14 ± 994.92
131.44 ± 347.93
0.001
Serum albumin (g/L): mean ± SD
41.25 ± 3.62
41.54 ± 3.58
0.641
Serum creatinine (μmol/L): mean ± SD
78.58 ± 24.94
79.32 ± 24.81
0.868
Categorical variables
Gender
Male
31
79
0.761
Female
14
40
Stone number
<3
29
72
0.643
≥3
16
47
Staghorn calculi
No
43
114
0.945
Yes
2
5
Hydronephrosis
No
7
32
0.128
Yes
38
87
Diabetes
No
40
110
0.468
Yes
5
9
Blood transfusion
No
42
112
0.888
Yes
2
6
WBC: blood white blood cell count that was examined the day before surgery. WBC: urine white blood cell count that was examined the day before surgery.
