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Table 2 Pathological patient data

From: Kidney stone formers have more renal parenchymal crystals than non-stone formers, particularly in the papilla region

Parameter Number of SFs (%) Number of NSFs (%) P-value*
Diagnosis    0.7879
 Clear cell RCC 27 (90.0) 28 (93.3)  
 Papillary RCC 1 (3.3) 1 (3.3)  
 Chromophobe RCC 1 (3.3) 0 (0)  
 Collecting duct carcinoma 1 (3.3) 1 (3.3)  
Grade    0.3529
 1 8 (26.7) 9 (30.0)  
 2 20 (66.7) 21 (70.0)  
 3 2 (6.7) 0 (0)  
INF    0.5194
 a 18 (64.3) 20 (69.0)  
 b 10 (35.7) 8 (27.6)  
 c 0 1 (3.4)  
pT    0.7249
 1a 12 (40.0) 13 (43.3)  
 1b 9 (30.0) 11 (36.7)  
 2 2 (6.7) 1 (3.3)  
 3a 2 (6.7) 3 (10.0)  
 3b 5 (16.7) 2 (6.7)  
Side    0.0705
 Right 12 (40.0) 19 (63.3)  
 Left 18 (60.0) 11 (36.7)  
  1. SFs stone formers, NSFs non-stone formers, RCC renal cell carcinoma
  2. *P < 0.05 indicates statistically significant differences by the chi-square test