From: Optimal timing of ureteroscopic lithotripsy after the initial drainage treatment and risk factors for postoperative febrile urinary tract infection in patients with obstructive pyelonephritis: a retrospective study
fUTI −
fUTI +
N
%
n
Ca oxalate
136
65.7
22
68.8
Ca phosphate
10
4.8
3
9.4
NH4MgPO4
24
11.6
2
6.3
Carbonate apatite
1
Uric acid
7
3.4
0
Not evaluated
28
13.5
Total
207
32