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Table 4 Comparison of clinical characteristics of anterior and posterior renal tumor located on superior, inferior, or middle of kidney

From: Robot-assisted partial nephrectomy: Can retroperitoneal approach suit for renal tumors of all locations?—A large retrospective cohort study

Variables

Superior pole

Inferior pole

Middle

n

87 vs. 206

70 vs. 159

82 vs. 168

RENAL nephrometry score

5.9 vs. 6.2, p = 0.096

6.1 vs. 6.0, p = 0.585

8.1 vs. 8.6, p = 0.057

PADUA nephrometry score

7.9 vs. 8.3, p = 0.086

8.3 vs. 7.8, p = 0.063

9.7 vs. 10.1, p = 0.102

Surgical time (min)

130.1 vs. 124.3, p = 0.326

122.7 vs. 123.7, p = 0.885

115.4 vs. 127.6, p = 0.048

Warm ischemia time (min)

18.4 vs. 18.8, p = 0.712

18.6 vs. 20.1, p = 0.281

19.1 vs. 21.1, p = 0.130

Estimated blood loss (ml)

89.9 vs. 64.4, p = 0.217

51.9 vs. 61.4, p = 0.429

66.0 vs. 64.6, p = 0.915

Complication (Clavien Dindo classification)

Grade 1 (%)

10.3 vs. 8.7, p = 0.521

10.0 vs. 10.1, p = 0.836

7.3 vs. 10.1, p = 0.105

≥Grade 2 (%)

3.4 vs. 3.4, p = 0.928

2.9 vs. 2.5, p = 0.432

2.4 vs. 3.6, p = 0.220

Changes of eGFR (%)

18.9 vs. 15.6, p = 0.066

13.5 vs. 15.6, p = 0.304

16.2 vs. 16.3, p = 0.956

Drainage tube removal time (days)

3.2 vs. 3.3, p = 0.501

3.2 vs. 3.2, p = 0.871

3.3 vs. 3.7, p = 0.153

Catheter removal time (days)

2.5 vs. 2.3, p = 0.287

2.4 vs. 2.4, p = 0.905

2.5 vs. 2.6, p = 0.448

Postoperative feeding time (days)

2.4 vs. 2.1, p = 0.111

2.3 vs. 2.1, p = 0.244

2.0 vs. 2.1, p = 0.293

Postoperative hospital stay (days)

5.4 vs. 5.3, p = 0.720

5.0 vs. 5.5, p = 0.306

6.2 vs. 5.5, p = 0.188