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Table 4 Characterization for stents encrustation Bladder (N = 99) and Renal (N = 99) ends

From: Reduction of ureteral stent encrustation by modulating the urine pH and inhibiting the crystal film with a new oral composition: a multicenter, placebo controlled, double blind, randomized clinical trial

Percentage (%) of encrustation in stents
 Bladder endRenal end
01230123
no deposit28.3   41.4   
OM12.1   8.1   
COM 24.2   27.3  
COM + COD 14.1   11.1  
BRU 2.0 1.0 2.0  
HAP 1.01.1  1.0  
HAP + BRU 1.0 3.0   3.0
UA  3.0   2.0 
UA + COM 1.0   1.0  
bacteria 4.0   2.0  
HAP + PAM   2.0  1.0 
BRU + COD 1.0  
AU 1.0  
  1. OM organic matter; COM calcium oxalate monohydrate; COD calcium oxalate dihydrate; BRU brushite; HAP hydroxyapatite; UA uric acid; PAM ammonium magnesium phosphate; AU ammonium urate