Table 4.
Odds of readmission, variables ranked in decreasing order of predictor importance.Odds ratios compare variables at level A & B, with A as reference/baseline value (indicated B:A).
| Variable | Odds Ratio (95% CI) |
|---|---|
| ASA Level | |
| ASA Level - 2:1 | 2.00 (1.03–3.89) |
| ASA Level - 3:1 | 3.48 (1.79–6.77) |
| ASA Level - 4:1 | 5.50 (2.73–11.12) |
| Length of Stay | |
| LOS - 2 days:1 day | 1.06 (0.93–1.21) |
| LOS - 3 days:1 day | 1.45 (1.26–1.68) |
| LOS - 4+ days:1 day | 2.17 (1.85–2.54) |
| Age, years - 74.5:61.4 | 1.40 (1.22–1.60) |
| Case Mix Index - 2.067:2.054 | 1.01 (1.01–1.02) |
| Gabapentin - No:Yes | 0.79 (0.72–0.88) |
| Sex - M:F | 1.20 (1.09–1.32) |
| Joint - Hip:Knee | 1.21 (1.09–1.33) |
| MME Per Day - 64:23 | 1.19 (1.07–1.32) |