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Table 3 Odds ratios for admission, with confounding factors taken into account

From: The probability of patients being admitted from the emergency department is negatively correlated to in-hospital bed occupancy – a registry study

  Occupancy level B SE Wald Sig. ( P) OR (CI)
All units <95% (ref)      1.00
  95–100% −0.12 0.025 24.26 <0.001 0.88 (0.84–0.93)
  100–105% −0.20 0.029 47.17 <0.001 0.82 (0.78–0.87)
  >105% −0.31 0.046 43.96 <0.001 0.74 (0.67–0.81)
Nagelkerke R2 0.370
Medicine unit <95% (ref)      1.00
  95–100% −0.14 0.030 22.60 <0.001 0.87 (0.82–0.92)
  100–105% −0.22 0.036 36.46 <0.001 0.80 (0.75–0.86)
  >105% −0.33 0.060 29.86 <0.001 0.72 (0.64–0.81)
Nagelkerke R2 0.367
Surgery unit <95% (ref)      1.00
  95–100% −0.16 0.035 20.35 <0.001 0.85 (0.80–0.91)
  100–105% −0.17 0.042 17.11 <0.001 0.84 (0.78–0.91)
  >105% −0.17 0.070 6.10 0.014 0.84 (0.73–0.97)
Nagelkerke R2 0.261
Orthopaedics unit <95% (ref)      1.00
  95–100% 0.004 0.049 0.006 0.940 1.00 (0.91–1.11)
  100–105% −0.26 0.061 18.62 <0.001 0.77 (0.68–0.87)
  >105% −0.24 0.096 6.41 0.011 0.78 (0.65–0.95)
Nagelkerke R2 0.421
Emergency physician unit <95% (ref)      1.00
  95–100% −0.006 0.049 0.016 0.899 0.99 (0.90–1.10)
  100–105% −0.033 0.051 0.41 0.520 0.97 (0.88–1.07)
  >105% −0.25 0.075 10.60 0.001 0.78 (0.68–0.91)
Nagelkerke R2 0.357
Otolaryngology unit <95% (ref)      1.00
  95–100% 0.002 0.12 0.000 0.989 1.00 (0.79–1.28)
  100–105% −0.36 0.15 5.99 0.014 0.70 (0.53–0.93)
  >105% −0.40 0.22 3.44 0.063 0.67 (0.44–1.02)
Nagelkerke R2 0.287
  1. Results from binary logistic regression models taking into account confounding from presenting complaint, age-group, referral status, triage priority, presentation on a shift experiencing many visits, presentation on night shift and during weekend, sex, leaving without being seen and entering ED via primary triage.