Table 4:
Logistic regression coefficients for prediction of discharge to rehabilitation
| Variable | Beta Coefficient | Odds Ratio | 95% CI | P-Value | ||
|---|---|---|---|---|---|---|
|
| ||||||
| Intercept | −5.25 | -- | -- | -- | <0.001 | |
|
| ||||||
| Age(categorical)* | 0.67 | 1.96 | 1.75 | - | 2.19 | <0.001 |
|
| ||||||
| Gender | ||||||
| Female | Ref | -- | -- | -- | -- | |
| Male | −0.62 | 0.54 | 0.43 | - | 0.68 | <0.001 |
|
| ||||||
| Race | ||||||
| White | Ref | -- | -- | -- | -- | |
| Asian | 0.47 | 1.60 | 1.03 | - | 2.47 | 0.035 |
| Black | 1.04 | 2.83 | 1.77 | - | 4.54 | <0.001 |
| Hispanic/Latino | 0.19 | 1.21 | 0.80 | - | 1.82 | 0.371 |
|
| ||||||
| BMI** | 0.23 | 1.25 | 1.11 | - | 1.41 | <0.001 |
|
| ||||||
| Diagnosis | ||||||
| Lumbar Degenerative | Ref | -- | -- | -- | -- | |
| Cervical Degenerative | 0.30 | 1.35 | 0.95 | - | 1.90 | 0.091 |
| Spine Deformity | 0.00 | 1.00 | 0.67 | - | 1.50 | 0.981 |
|
| ||||||
| Surgical Invasiveness Index*** | 0.69 | 2.00 | 1.72 | - | 2.32 | <0.001 |
|
| ||||||
| Surgical Approach | ||||||
| Posterior | Ref | -- | -- | -- | -- | |
| Anterior | −1.31 | 0.27 | 0.17 | - | 0.42 | <0.001 |
| Combined - Staged Same Day | −0.54 | 0.59 | 0.40 | - | 0.86 | 0.007 |
| Combined - Staged Different Day | 0.07 | 1.07 | 0.73 | - | 1.57 | 0.741 |
|
| ||||||
| Cardiovascular Risk Factors | ||||||
| Hypertension | −0.02 | 0.98 | 0.78 | - | 1.23 | 0.867 |
| Heart Failure | −0.18 | 0.83 | 0.45 | - | 1.54 | 0.562 |
| Peripheral Arterial Disease | 0.27 | 1.31 | 0.68 | - | 2.53 | 0.422 |
| Past Myocardial Infarction | −0.40 | 0.67 | 0.23 | - | 1.91 | 0.452 |
| Heart Block | 0.29 | 1.34 | 0.55 | - | 3.29 | 0.521 |
| Past Stroke | 0.69 | 1.99 | 0.90 | - | 4.40 | 0.091 |
| Cardiomyopathy | −0.15 | 0.86 | 0.31 | - | 2.39 | 0.779 |
| Arrhythmia | 0.53 | 1.71 | 1.27 | - | 2.30 | <0.001 |
| Myocarditis | −0.02 | 0.98 | 0.40 | - | 2.40 | 0.962 |
|
| ||||||
| Respiratory Risk Factors | ||||||
| COPD | 0.67 | 1.96 | 1.31 | - | 2.94 | 0.001 |
| Dyspnea | −0.59 | 0.55 | 0.16 | - | 1.87 | 0.341 |
| Asthma History | 0.08 | 1.09 | 0.78 | - | 1.51 | 0.621 |
| Ventilator Dependent | 0.84 | 2.31 | 0.69 | - | 7.79 | 0.177 |
|
| ||||||
| Smoking Status | ||||||
| Never Smoker | Ref | -- | -- | -- | -- | |
| Current Smoker | 0.54 | 1.72 | 1.07 | - | 2.76 | 0.024 |
| Former Smoker | 0.16 | 1.17 | 0.94 | - | 1.47 | 0.165 |
|
| ||||||
| Renal Risk Factors | ||||||
| Acute Renal Failure | 0.65 | 1.91 | 0.96 | - | 3.81 | 0.065 |
| Renal Dialysis | 0.43 | 1.54 | 0.30 | - | 7.83 | 0.605 |
| Chronic Kidney Disease(CKD) | 0.10 | 1.10 | 0.72 | - | 1.68 | 0.661 |
|
| ||||||
| Metabolic Risk Factors | ||||||
| Diabetes | 0.35 | 1.42 | 1.06 | - | 1.90 | 0.019 |
| Acute Liver Damage | 0.16 | 1.17 | 0.55 | - | 2.48 | 0.682 |
|
| ||||||
| Other Risk Factors | ||||||
| Cancer History | 0.19 | 1.21 | 0.89 | - | 1.63 | 0.224 |
| Osteoporosis | 0.31 | 1.36 | 0.97 | - | 1.92 | 0.074 |
| Inflammatory Disease | −0.25 | 0.78 | 0.47 | - | 1.30 | 0.341 |
| Insomnia | 0.82 | 2.27 | 1.00 | - | 5.15 | 0.050 |
| Sleep Apnea | 0.05 | 1.05 | 0.78 | - | 1.43 | 0.733 |
| Depression | 0.58 | 1.79 | 1.29 | - | 2.48 | <0.001 |
| Anxiety | 0.19 | 1.21 | 0.84 | - | 1.74 | 0.316 |
| GERD | 0.12 | 1.13 | 0.89 | - | 1.45 | 0.317 |
| Opioid Addiction Disorder | 0.24 | 1.27 | 0.54 | - | 3.01 | 0.582 |
*
Per 1 point category increase. 18–39=0, 40–49=1, 50–59=2, 60–69=3, 70–79=4, ≥80=5
**
Per 1 point category increase. BMI<25 = 0, 25≤BMI<30 =1, 30≤BMI<35 =2, BMI≥35=3
***
Per 1 point category increase. Index 1–2 = 0, 3–6=1, 7–12=2, 13–18=3, 19–24=4, ≥25=5