Pelvis Urine (Negative)
Pelvis Urine (Positive)
p value
Agea(years) Agea(years) 69.0 (66.0-71.0) 69.0 (65.0-74.0) 0.686
BMIa BMIa 25.4 (23.1-27.5) 25.8 (23.9-29.0) 0.176
Genderb Female 48 (51.1%) 13 (37.1%) 0.113
Male 46 (48.9%) 22 (62.9%)
History of ESWLb Absent 72 (76.6%) 28 (80.0%) 0.439
Present 22 (23.4%) 7 (20.0%)
Metabolic Syndromeb Absent 66 (70.2%) 22 (62.9%) 0.277
Present 28 (29.8%) 13 (37.1%)
Stone Localizationb Lower pole 19 (20.2%)a 1 (2.8%) b 0.011*
Middle pole 5 (5.3%) a 0 a
Upper pole 5 (5.3%) a 0 a
Pelvis 33 (35.1%) a 13 (37.1%) a
Proximal ureter 18 (19.1%) a 8 (22.8%) a
Multiple calyxes 14 (14.8%) a 13 (37.1%) b
Preoperative Bladder Urine Cultureb None 80 (85.1%)a 24 (68.6%) b 0.026^
Escherichia coli 9 (9.6%) a 3 (8.6%) a
Pseudomonas aeruginosa 3 (3.2%) a 3 (8.6%) a
Staphylococcus aureus 0 a 1 (2.9%) a
Enterecocus 1 (1.1%) a 3 (8.6%) b
Proteus mirabilis 0 a 0 a
Klebsiella 0 a 1 (2.9%) a
Candida albicans 1 (1.1%) a 0 a
Preoperative Hydronephrosisb None 43 (95.5%) 2 (4.5%) <0.001*
Grade 1 45 (76.3%) 14 (23.7%)
Grade 2 6 (27.3%) 16 (72.7%)
Grade 3 0 3 (100%)
Preoperative Pelvis Urine Densitya (HU) Preoperative Pelvis Urine Densitya (HU) 8.0(6.0-11.0) -7.0 (-10.0-3.0) <0.001#
Stone Densitya (HU) Stone Densitya (HU) 1092.0 (800.0-1250.0) 950.0 (728.0-1150.0) 0.078
Stone Sizea (mm) Stone Sizea (mm) 90.0 (80.0-110.0) 110.0 (90.0-190.0) <0.001#
Postoperative Complicationb None 92 (97.8%) 29 (89.2%) 0.007
Fewer 2 (2.2%) 5 (14.3%)
Perforation 0 0
Sepsis 0 1 (2.9%)
Death 0 0
Preoperative White Blood Cell Counta(103/µL) Preoperative White Blood Cell Counta(103/µL) 8.0 (6.7-9.8) 7.9 (6.3-9.0) 0.401
Preoperative Neutrophil Counta(103/µL) Preoperative Neutrophil Counta(103/µL) 4.3 (3.6-6.1) 4.2 (3.8-5.8) 0.824
Operation Timea (min) Operation Timea (min) 60.0 (45.0-70.0) 70.0 (60.0-75.0) 0.003#
Hospitalization Datea(day) Hospitalization Datea(day) 2.0 (2.0-3.0) 2.0 (2.0-4.0) 0.379
Residual Fragmentb Absent 68 (72.3%) 22 (62.9%) 0.409
Present 8 (9.0%) 6 (17.1%)
CIRF 18 (19.1%) 7 (20.0%)