Table 4.
Significant Predictors of Patient Disposition after Spinal Fusion Surgery
| Significant Predictors | Disposition to a Care Facility versus Disposition to Home | Disposition to HHC versus Disposition to Home | ||||
|---|---|---|---|---|---|---|
| Coefficient* | OR | 95%CI | Coefficient* | OR | 95%CI | |
| Age | 0.081 | 1.08 | [1.08, 1.09] | Not Significant | ||
| Sex | 0.393 | 1.48 | [1.45 1.52] | 0.221 | 1.25 | [1.22, 1.28] |
| Weekend Admission (Yes) | 0.856 | 2.35 | [2.21, 2.51] | 0.288 | 1.32 | [1.22, 1.42] |
| Elective Admission (Yes) | −0.986 | 0.37 | [0.36, 0.39] | −0.187 | 0.83 | [0.80, 0.87] |
| Hospital Location (Urban) | 0.473 | 1.60 | [1.50, 1.71] | Not Significant | ||
| Teaching Hospital (Yes) | 0.171 | 1.19 | [1.16, 1.22] | −0.210 | 0.81 | [0.79, 0.83] |
| Race | ||||||
| White | Not Significant | 0.182 | 1.20 | [1.17, 1.24] | ||
| Black | 0.406 | 1.50 | [1.42, 1.58] | 0.403 | 1.49 | [1.41, 1.57] |
| Hispanic | 0.255 | 1.29 | [1.21, 1.38] | 0.605 | 1.82 | [1.72, 1.93] |
| Patient Co-morbidities | ||||||
| AIDS | 0.524 | 1.69 | [1.10, 2.60] | Not Significant | ||
| Alcohol Abuse | 0.460 | 1.58 | [1.46, 1.72] | Not Significant | ||
| Deficiency Anemia | 0.550 | 1.73 | [1.66, 1.81] | 0.557 | 1.73 | [1.64, 1.81] |
| Rheumatoid Arthritis | 0.173 | 1.19 | [1.12, 1.27] | 0.111 | 1.12 | [1.04, 1.20] |
| Chronic Blood Loss Anemia | 0.720 | 2.05 | [1.86, 2.27] | 0.662 | 1.94 | [1.74, 2.16] |
| Congestive Heart Failure | 0.423 | 1.53 | [1.42, 1.64] | 0.242 | 1.27 | [1.16, 1.38] |
| Coagulopathy | 0.661 | 1.94 | [1.78, 2.11] | 0.403 | 1.49 | [1.35, 1.64] |
| Diabetes | 0.525 | 1.69 | [1.55, 1.84] | 0.274 | 1.31 | [1.18, 1.45] |
| Drug Abuse | 0.551 | 1.73 | [1.57, 2.00] | 0.269 | 1.30 | [1.17, 1.44] |
| Hypertension | −0.189 | 0.83 | [0.80, 0.86] | −0.103 | 0.91 | [0.87, 0.95] |
| Lymphoma | 0.344 | 1.41 | [1.18, 1.69] | Not Significant | ||
| Fluid and Electrolyte Disorders | 0.859 | 2.36 | [2.26, 2.47] | 0.580 | 1.78 | [1.69, 1.88] |
| Metastatic Cancer | 0.375 | 1.46 | [1.29, 1.65] | 0.701 | 2.00 | [1.75, 2.29] |
| Neurological Disorders | 0.566 | 1.76 | [1.66, 1.87] | 0.150 | 1.16 | [1.09, 1.24] |
| Obesity | 0.238 | 1.27 | [1.21, 1.33] | Not Significant | ||
| Paralysis | 1.773 | 5.89 | [5.50, 6.31] | 0.733 | 2.08 | [1.91, 2.26] |
| Peripheral Vascular Disorders | Not Significant | 0.140 | 1.15 | [1.05, 1.25] | ||
| Psychoses | 0.693 | 2.00 | [1.85, 2.17] | 0.271 | 1.31 | [1.20, 1.43] |
| Pulmonary Circulation Disorders | 0.480 | 1.62 | [1.38, 1.89] | 0.361 | 1.43 | [1.19, 1.72] |
| Renal Failure | 0.280 | 1.32 | [1.22, 1.44] | 0.142 | 1.15 | [1.04, 1.27] |
| Weight Loss | 0.990 | 2.69 | [2.37, 3.06] | 0.409 | 1.49 | [1.27, 1.76] |
| Number of co-morbidities | ||||||
| 0 | −0.842 | 0.43 | [0.39, 0.48] | −0.562 | 0.57 | [0.51, 0.63] |
| 1 | −0.464 | 0.63 | [0.59, 0.68] | −0.295 | 0.75 | [0.69, 0.81] |
| 2 | −0.192 | 0.83 | [0.79, 0.87] | −0.113 | 0.90 | [0.85, 0.95] |
| Hospital Annual Volume | ||||||
| Very Low | 0.244 | 1.28 | [1.19, 1.37] | −0.202 | 0.82 | [0.76, 0.88] |
| Low | 0.147 | 1.16 | [1.11, 1.22] | −0.212 | 0.81 | [0.77, 0.85] |
| High | 0.148 | 1.16 | [1.13, 1.20] | Not Significant | ||
| Hospital Region | ||||||
| North | 0.706 | 2.03 | [1.95, 2.11] | 0.808 | 2.22 | [2.14, 2.31] |
| Midwest | −0.204 | 0.82 | [0.79, 0.85] | −0.382 | 0.67 | [0.66, 0.71] |
| Hospital Bed-size | ||||||
| Small | −0.469 | 0.63 | [0.60, 0.65] | −0.314 | 0.73 | [0.71, 0.76] |
| Medium | −0.173 | 0.84 | [0.82, 0.87] | −0.200 | 0.82 | [0.80, 0.85] |
| Discharge Year | ||||||
| 2004 | 0.342 | 1.41 | [1.36, 1.46] | 0.164 | 1.17 | [1.13, 1.22] |
| 2005 | 0.284 | 1.33 | [1.28, 1.38] | Not Significant | ||
| 2006 | 0.145 | 1.16 | [1.12, 1.20] | 0.105 | 1.11 | [1.07, 1.15] |
| 2007 | 0.155 | 1.15 | [1.13, 1.21] | 0.177 | 1.19 | [1.15, 1.23] |
OR: Odds Ratio, CI: confidence Interval, LOS: Length of Stay
*
Coefficient = logistic regression coefficient.