Table 1 Variables related with length of stay outliers * (N: 9,253,087)
From: Factors influencing hospital high length of stay outliers
Variable Values | Cases (%) | Outliers (%) | Unadjusted OR | Adjusted OR (AOR) | 95% CI for AOR lower - upper |
|---|---|---|---|---|---|
LOS outlier | Â | Â | Â | Â | Â |
Not outlier | 96.1 | Â | Â | Â | Â |
Outlier | 3.9 | Â | Â | Â | Â |
Admission and DRG type | Â | Â | Â | Â | Â |
Planned and non-surgical | 8.9 | 3.1 | 1 | 1 | Â |
Planned and surgical | 22.1 | 2.7 | 0.86 | 0.99 | 0.86 - 1.15 |
Emergency and non-surgical | 55.5 | 3.9 | 1.26 | 1.46 | 1.32 - 1.62 |
Emergency and surgical | 13.5 | 6.0 | 1.96 | 2.49 | 2.26 - 2.74 |
Age | Â | Â | Â | Â | Â |
0 to 17 years | 19.5 | 2.4 | 1 | 1 |  |
18 to 45 years | 27.7 | 2.7 | 1.13 | 0.99 | 0.88 - 1.12 |
46 to 65 years | 20.7 | 4.2 | 1.76 | 1.53 | 1.33 - 1.76 |
66 to 80 years | 22.4 | 5.5 | 2.32 | 1.78 | 1.52 - 2.08 |
More than 80 years | 9.7 | 5.4 | 2.28 | 1.57 | 1.34 - 1.83 |
Year of discharge | Â | Â | Â | Â | Â |
2000 | 10.3 | 3.9 | 1 | 1 | Â |
2001 | 10.4 | 3.6 | 0.92 | 0.90 | 0.87 - 0.94 |
2002 | 10.5 | 3.6 | 0.92 | 0.90 | 0.85 - 0.95 |
2003 | 10.7 | 3.9 | 1.00 | 0.97 | 0.90 - 1.04 |
2004 | 10.6 | 4.0 | 1.04 | 0.99 | 0.92 - 1.07 |
2005 | 10.8 | 3.8 | 0.98 | 0.93 | 0.86 - 1.00 |
2006 | 10.5 | 3.9 | 1.01 | 0.96 | 0.87 - 1.05 |
2007 | 10.4 | 3.9 | 1.02 | 0.95 | 0.85 - 1.05 |
2008 | 10.4 | 3.9 | 1.02 | 0.94 | 0.83 - 1.05 |
2009 | 5.4 | 4.3 | 1.12 | 1.01 | 0.90 - 1.14 |
Number of comorbidities | Â | Â | Â | Â | Â |
(Elixhauser method) | ** | Â | 1.85 | 1.41 | 1.34 - 1.49 |
Discharge status | Â | Â | Â | Â | Â |
Discharged alive | 95.6 | 3.7 | 1 | 1 | Â |
Expired | 4.4 | 6.8 | 1.88 | 1.25 | 1.16 - 1.35 |
A-DRG Complexity | Â | Â | Â | Â | Â |
Lower than 0.39 | 25.7 | 2.5 | 1 | 1 | Â |
From 0.39 to 1.02 | 49.3 | 4.1 | 1.66 | 1.14 | 1.07 - 1.21 |
Higher than 1.02 | 25.1 | 4.7 | 1.88 | 0.97 | 0.89 - 1.06 |
Readmission | Â | Â | Â | Â | Â |
No readmission | 93.5 | 3.8 | 1 | 1 | Â |
Readmission | 6.5 | 4.9 | 1.32 | 1.21 | 1.13 - 1.29 |
Hospital, administrative group | Â | Â | Â | Â | Â |
Level 1 district hospital | 5.1 | 3.6 | 1 | 1 | Â |
District hospital | 54.0 | 3.6 | 1.00 | 1.03 | 0.84 - 1.27 |
Central hospital | 40.8 | 4.2 | 1.17 | 1.11 | 0.89 - 1.37 |
Hospital, teaching groups | Â | Â | Â | Â | Â |
Non-teaching | 70.7 | 3.7 | 1 | 1 | Â |
Medium-small teaching | 16.0 | 4.1 | 1.13 | 1.03 | 0.92 - 1.16 |
Large teaching | 13.4 | 4.5 | 1.25 | 1.17 | 1.03 - 1.33 |
Hospital, economic group | Â | Â | Â | Â | Â |
Group II, III and IV | 91.7 | 3.8 | 1 | 1 | Â |
Group I | 8.3 | 4.4 | 1.17 | 1.13 | 0.94 - 1.37 |