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Table 1 Comparison of patients readmitted or not within 30 days of discharge

From: Institution specific risk factors for 30 day readmission at a community hospital: a retrospective observational study

Characteristic Readmit (N = 637) Non-readmit (N = 3137) p-value*
Male (N-%) 269 (42.2) 1275 (40.6) 0.5
Age, yrs. (mean ± SD) 78.0 (13.7) 76.0 (15.8) 0.004
LOS, days (mean ± SD) 4.8 (4.3) 3.9 (3.1) <0.0001
Elixhauser sum score (mean ± SD) 4.3 (1.5) 3.9 (1.7) <0.0001
Admission in the previous calendar year (N-%) 139 (21.8) 445 (14.2) <0.0001
Disposition, home (N-%) vs. facility 353 (15.2) 1967 (84.8) 0.0006
Insurance    0.001
  Medicare (N-%) 491 (18.3) 2198 (81.7)  
  Medicaid (N-%) 19 (17.1) 92 (82.9)  
  Private (N-%) 127 (13.0) 847 (87.0)  
MD census (mean ± SD) 12.7 (2.7) 12.5 (1.8) 0.2
MD hours (mean ± SD) 10.7 (1.8) 10.7 (1.8) 0.9
Discharge on switch day (N-%) 113 (15.6) 609 (84.3) 0.3
Service, housestaff vs. non-housestaff (N-%) 532 (17.6) 2488 (82.4) 0.02
Season    0.002
  Winter (N-%) 199 (20.6) 765 (79.4)  
  Spring (N-%) 165 (16.6) 831 (83.4)  
  Summer (N-%) 123 (14.4) 733 (85.6)  
  Fall (N-%) 150 (15.7) 808 (84.3)  
Floor    0.7
  Med/onc (N-%) 294 (16.9) 1449 (83.1)  
  Cardiac (N-%) 332 (17.0) 1617 (83.0)  
  Non-medical (N-%) 11 (13.4) 71 (86.6)  
Floor census    0.67
  <20 (N-%) 131 (17.2) 632 (82.8)  
  21-30 (N-%) 366 (16.4) 1864 (83.6)  
  >30 (N-%) 140 (17.9) 641 (82.1)  
Medicine/surgical census (mean ± SD) 89 (12.5) 89 (12.8) 0.81
Hospital census (mean ± SD) 204 (21.7) 205 (22.8) 0.26
  1. *P value obtained by chi-square, Student’s T-test or Wilcoxon rank sum testing.