Linear regression of length of stay predictors.
| Lenght of Stay Predictor | Unstandardized Coefficients | Standardized Coefficients | t Value | P Value | |
| B | Standard Error | β | |||
| Constant | 1.44 | 0.57 | 2.54 | 0.01 | |
| ACDF = 0, PCF = 1 | −0.17 | 0.15 | −0.06 | −1.12 | 0.27 |
| Age | −0.02 | 0.01 | −0.13 | −1.92 | 0.06 |
| Body mass index | 0.01 | 0.01 | 0.06 | 1.16 | 0.25 |
| Charlson Comorbidity Index | 0.16 | 0.05 | 0.22 | 3.32 | <0.01 |
| Male = 0, Female = 1 | 0.45 | 0.14 | 0.17 | 3.19 | <0.01 |
| Level | 0.03 | 0.08 | 0.02 | 0.33 | 0.74 |
Bolded values indicate significance at P < 0.05
ACDF, anterior cervical discectomy and fusion; PCF, posterior cervical foraminotomy.