|
A. Retrospective approach (N = 111)
|
Female (N = 28)
|
Male (N = 83)
|
P value
|
|
Age (years)
| | |
55.5 ± 12.5
|
58.9 ± 12.8
|
0.226
|
|
Side (no.)
|
Right/Left
| |
15/13
|
33/50
|
0.202
|
|
Height (cm)
| | |
156.2 ± 6.9
|
168.6 ± 7.2
|
<0.001a
|
|
Body weight (kg)
| | |
53.4 ± 9.4
|
69.8 ± 13.9
|
<0.001a
|
|
Body mass index (cm/kg2)
| | |
22.0 ± 3.7
|
24.4 ± 3.8
|
0.005a
|
|
Max. tumor diameter (mm)
| | |
23.3 ± 6.7
|
24.1 ± 7.3
|
0.605
|
|
The R.E.N.A.L. Nephrometry Score
| | |
5.7 ± 1.5
|
5.8 ± 1.4
|
0.954
|
|
Ischemia time
| | |
14.6 ± 9.0
|
19.2 ± 11.9
|
0.069
|
|
Resected volume (g)
| | |
7.3 ± 2.9
|
14.9 ± 14.7
|
0.018a
|
|
Histological findings
|
histologic subtypes
|
clear cell
|
12
|
62
|
<0.001a
|
| | |
papillary
|
0
|
8
| |
| | |
chromophobe
|
5
|
1
| |
| | |
oncocytoma
|
0
|
5
| |
| | |
angiomyolipoma
|
6
|
2
| |
| | |
other
|
5
|
5
| |
|
Blood loss (ml)
| | |
16.9 ± 23.8
|
109.5 ± 247.8
|
0.056
|
|
Surgical complications
|
Peritoneal injury
| |
3
|
4
|
0.395
|
|
B. Transperitoneal approach (N = 64)
|
Female (N = 20)
|
Male (N = 44)
|
P value
|
|
Age (years)
| | |
56.6 ± 16.8
|
62.3 ± 11.8
|
0.122
|
|
Side (no.)
|
Right/left
| |
12/8
|
30/14
|
0.523
|
|
Height (cm)
| | |
155.2 ± 6.7
|
168.0 ± 6.0
|
<0.001a
|
|
Body weight (kg)
| | |
55.1 ± 9.1
|
70.2 ± 10.7
|
<0.001a
|
|
Body mass index (cm/kg2)
| | |
22.9 ± 4.0
|
24.9 ± 3.6
|
0.057
|
|
Max. tumor diameter (mm)
| | |
22.4 ± 8.6
|
25.8 ± 8.2
|
0.149
|
|
The R.E.N.A.L. Nephrometry Score
| | |
6.0 ± 1.5
|
6.6 ± 1.4
|
0.106
|
|
Ischemia time
| | |
18.7 ± 9.6
|
18.4 ± 8.8
|
0.924
|
|
Resected volume (g)
| | |
9.7 ± 6.3
|
15.8 ± 11.2
|
0.019
|
|
Histological findings
|
histologic subtypes
|
clear cell
|
12
|
32
|
0.413
|
| | |
papillary
|
1
|
4
| |
| | |
chromophobe
|
1
|
2
| |
| | |
oncocytoma
|
1
|
1
| |
| | |
angiomyolipoma
|
3
|
1
| |
| | |
other
|
2
|
4
| |
|
Blood loss (ml)
| | |
86.5 ± 94.4
|
60.6 ± 89.0
|
0.306
|
|
Surgical complications
|
Ileum injury
| |
0
|
1
|
NA
|
- aSignificant differences between the two groups as determined by unpaired t-test, Mann-Whitney’s U test or chi-square test
