The Evaluation of Risk Factors for Postoperative Infectious Complications after Percutaneous Nephrolithotomy
Table 4
Comparison of clinical factors between patients with and without postoperative fever.
Fever
No fever
Continuous variables
Age (year): mean ± SD
53.65 ± 11.31
50.70 ± 12.18
0.083
Stone size (cm): Mean ± SD
3.55 ± 1.39
2.79 ± 1.26
0.016
Day of antibiotic use before surgery (day): mean ± SD
0.60 ± 1.60
0.53 ± 1.42
0.850
Surgery time (min): Mean ± SD
128.75 ± 42.61
134.35 ± 54.79
0.662
Temperature before surgery: mean ± SD
36.89 ± 0.22
36.94 ± 0.22
0.754
Blood WBC (/L) mean ± SD
6.59 ± 2.14
6.13 ± 1.92
0.335
Hemoglobin (g/L): mean ± SD
134.42 ± 13.80
135.64 ± 22.88
0.822
Urine WBC (/μL): mean ± SD
858.86 ± 1205.48
152.52 ± 444.81
<0.001
Serum albumin (g/L): mean ± SD
36.71 ± 3.72
47.32 ± 3.51
0.018
Serum creatinine (μmol/L): mean ± SD
75.06 ± 17.87
79.65 ± 25.53
0.461
Categorical variables
Gender
Male
10
100
0.761
Female
10
44
Stone number
<3
11
90
0.518
≥3
9
54
Staghorn calculi
No
19
138
0.863
Yes
1
6
Hydronephrosis
No
5
34
0.891
Yes
15
110
Diabetes
No
18
132
0.803
Yes
2
12
Blood transfusion
No
20
134
0.276
Yes
0
8
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.
