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Table 2 Baseline pathological characteristics

From: Impact of partial nephrectomy on kidney function in patients with renal cell carcinoma

  All patients (n = 557) RN (n = 339) PN (n = 218) Pvalue
Surgical approach (%)     0.004
Open 96 (17.2) 46 (13.6) 50 (22.9)  
Laparoscopic 461 (82.8) 293 (86.4) 168 (77.1)  
Tumor location (%)     0.925
Right 285 (51.2) 174 (51.3) 111 (50.9)  
Left 272 (48.8) 165 (48.7) 107 (49.1)  
Tumor size (cm) 3.4 ± 1.5 4.1 ± 1.4 2.4 ± 1.0 <0.001
≤ 4, No (%) 370 (66.4) 167 (49.3) 203 (93.1) <0.001
4 < size ≤7, No (%) 187 (33.6) 172 (50.7) 15 (6.9) <0.001
Histology (%)     0.077
Clear cell 439 (79.0) 270 (79.9) 167 (77.5)  
Papillary 47 (8.5) 20 (5.9) 27 (12.4)  
Chromophobe 43 (7.7) 29 (8.6) 14 (6.5)  
Other 27 (4.9) 19 (5.6) 8 (3.7)  
Fuhrman grade (%)     0.721
1 68 (12.2) 38 (11.2) 30 (13.8)  
2 358 (64.3) 218 (64.3) 140 (64.2)  
3 109 (19.6) 67 (19.8) 42 (19.3)  
4 12 (2.2) 9 (2.7) 3 (1.4)  
Pathologic stage (%) a     0.005
I 546 (98.0) 328 (96.8) 218 (100)  
III 11 (2.0) 11 (3.2)   
Nephrectomy size (cm) 9.2 ± 4.7 12.5 ± 2.2 3.9 ± 1.5 <0.001
  1. aBased on the tumor node metastasis staging system supported by both the American Joint Committee on Cancer and the International Union for Cancer Control.
  2. Abbreviations: RN radical nephrectomy, PN partial nephrectomy.