Table 8.
Multivariate Analysis of Cost Drivers for 3 Proceduresa
| B (SE), $ | P | 95% CI for B, $ | |
|---|---|---|---|
| Arthroscopic Bankart | |||
| Constant | 11,540 (721) | <.001 | 10,125 to 12,954 |
| Operative time | 69 (5) | <.001 | 60 to 78 |
| Postoperative admission to hospital | 11,516 (1633) | <.001 | 8313 to 14,719 |
| Lower-income ZIP code | 2909 (464) | <.001 | 1999 to 3819 |
| Privately-owned surgery center | –3 (1) | <.001 | –4 to –1 |
| Presence of comorbidity | 1982 (455) | <.001 | 1089 to 2875 |
| High-volume facility | –2077 (461) | <.001 | –2981 to –1173 |
| Female sex | –1545 (513) | .003 | –2551 to –540 |
| Hispanic race | 2493 (890) | .005 | 747 to 4239 |
| Regional anesthesia | 1898 (847) | .025 | 236 to 3559 |
| Open Bankart | |||
| Constant | 4148 (2846) | .147 | –1482 to 9777 |
| Operative time | 147 (20) | <.001 | 108 to 187 |
| High-volume facility | –6146 (2349) | .010 | –10,791 to –1501 |
| Latarjet | |||
| Constant | 4512 (4556) | .324 | –4495 to 13,518 |
| Operative time | 96 (19) | <.001 | 59 to 134 |
| Privately owned surgery center | –15 (4) | <.001 | –24 to –7 |
| High-volume facility | –6015 (2240) | .008 | –10,443 to –1587 |
| Postoperative admission to hospital | 7028 (3038) | .022 | 1022 to 13,034 |
| Age | 187 (90) | .039 | 9 to 365 |
aBolded P values indicate statistically significant difference (P < .05). B coefficient indicates added cost for each factor.