Table 2.
Generalized Linear Model—Primary Achilles Tendon Repair With Grafta
| Variable | Variable Group | β (2014 USD) | SE | 95% Wald CI | P | |
|---|---|---|---|---|---|---|
| Lower | Upper | |||||
| Intercept | $24,681 | $7036 | $10,890 | $38,471 | <.001 | |
| Admitted to hospital postoperatively | Admitted | $40,069 | $5264 | $29,752 | $50,387 | <.001 |
| Not admitted | 0 | |||||
| Surgical center ownership | Privately owned ASC | $(11,072) | $4726 | $(20,335) | $(1809) | .019 |
| Hospital-owned ASC | 0 | |||||
| Surgical center volume | High-volume ASC | $(16,987) | $3555 | $(23,954) | $(10,020) | <.001 |
| Low-volume ASC | 0 | |||||
| Age | $226 | $101 | $29 | $424 | .025 | |
aSignificant effects are bolded. Variables included but that were not significant: patient income, comorbidity, and surgeon volume. Parentheses indicate negative values. β corresponds to the cost added by the variable. ASC, ambulatory surgical center; USD, United States dollars.