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Table 1 The characteristics of patient, calculi, intervention and hospitalization

From: Clinical characteristics and risk factors for septic shock in patients receiving emergency drainage for acute pyelonephritis with upper urinary tract calculi

   Total No septic shock Septic shock P value
Characteristics Events 101 80 21  
Age Median (range) 67 (29-90) 64 (29-78) 74 (34-90) < 0.001
Sex Male 32 (31.7%) 27 (33.8%) 5 (23.8%) 0.441
  Female 69 (68.3%) 53 (66.3%) 16 (76.2%)  
Body mass index Median (range) 22.4 (13.9-35.7) 22.8 (13.9-35.7)   
     22.3 (17.6-27.4) 0.414
Stone location Right 48 (47.5%) 38 (47.5%) 10 (47.6%)  
  Left 47 (46.5%) 36 (45.0%) 11 (52.4%)  
  Bilateral 6 (5.9%) 6 (7.5%) 0 (0%)  
  Kidney 22 (21.8%) 15 (18.8%) 7 (33.3%) 0.229
  Ureter 74 (73.3%) 61 (76.3%) 13 (61.9%)  
  Unclear 5 (5.0%) 4 (5.0%) 1 (4.8%)  
Stone size (mm) Median (range) 9 (1-78) 9 (3-78) 9(1-20) 0.327
  Unclear 14 (13.9%) 12 (15.0%) 3 (14.3%)  
Drainage Ureteral stent insertion 90 (89.1%) 73 (91.3%) 17 (81.0%) 0.168
  Percutaneous nephrostomy 11 (10.9%) 7 (8.8%) 4 (19.0%)  
Culture Positive urine culture 69 (68.3%) 53 (66.3%) 16 (76.2%) 0.441
  Bacteremia 36 (35.6%) 21 (26.3%) 15 (71.4%) < 0.001
Intratracheal intubation   13 (12.9%) 4 (5.0%) 9 (42.9%) < 0.001
Days from initial symptom to drainage Median (range) 3 (0-38) 3 (0-38) 2 (0-16) 0.008
Hospital stay (day) Median (range) 11 (1-171) 10 (1-171) 14 (1-95) 0.011
Mortality   2 (2.0%) 0 (0%) 2 (9.5%)