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Table 2 Comparison data between the two groups

From: Would early removal of indwelling catheter effectively prevent urinary retention after hip fracture surgery in elderly patients?

  POUR (−) (n = 146) POUR (+) (n = 68) p value
Age (years) 78.6 ± 6.6 78.7 ± 6.7 0.898
Gender (male : female) 28:118 24:44 0.016
Body mass index (kg/m2) 22.2 ± 3.0 22.3 ± 3.6 0.470
ASA score    0.117
 II 26 11  
 III 105 50  
 IV 15 7  
Bone mineral density (T-score) − 2.7 ± 1.0 − 2.6 ± 0.8 0.563
Fracture site (neck : trochanter) 54:92 25:43 1.000
Patients with underlying diseases* (%) 50 (34.2) 27 (39.7) 0.072
Anesthesia (general : spinal) 70:76 34:34 0.883
Operation time (minutes) 84.9 ± 27.0 85.0 ± 32.0 0.973
Amount of intraoperative urine output (cc) 201.0 ± 174.8 202.3 ± 170.7 0.959
Amount of estimated blood loss (mL) 504.8 ± 199.6 561.8 ± 262.5 0.115
Amount of transfusion (units) 2.8 ± 1.9 3.2 ± 2.0 0.250
Time to rehabilitation after surgery    0.854
 POD 2 107 50  
 POD 3 33 15  
 POD 4 4 2  
 ≥ POD 5 2 1  
PCA (intravenous : epidural) 137:9 61:7 0.402
Duration of PCA infused (days) 2.2 ± 0.6 2.2 ± 0.7 0.400
Duration of Foley catheter indwelling after surgery (days) 3.7 ± 3.3 2.8 ± 1.2 0.004
Duration of hospitalization (days) 13.8 ± 5.7 14.7 ± 5.5 0.657
Urinary tract infection (%) 5 (3.4%) 6 (8.8%) 0.107
  1. Values are presented as mean (± standard deviation)
  2. ASA American Society of Anesthesiologists, POD postoperative day, PCA patient-controlled analgesia
  3. *Underlying disease include diabetes mellitus, brain disease, spinal disease, and neurogenic bladder