Table 5.
Adjusted associations of surgeons’ colorectal cancer volume with collaborative care for decisions regarding radiation therapy
| Physician characteristics | Adjusted odds ratio (95% confidence interval) | P value* |
|---|---|---|
| Surgeon volume (Number of colorectal cancer resections/month) | ||
| 0-1 | Reference | -- |
| 2 | 1.27 (0.79, 2.05) | .32 |
| 3-4 | 1.71 (1.05, 2.77) | .03 |
| ≥5 | 2.27 (l.27, 4.06) | .005 |
| Specialty | ||
| General surgeon | Reference | -- |
| Colorectal surgeon/Surgical Oncologist | 1.80 (1.00, 3.22) | .048 |
| US or Canadian medical graduate | ||
| No | Reference | -- |
| Yes | 1.68 (0.97, 2.89) | .06 |
| Practice site | ||
| Hospital | Reference | -- |
| Solo, office based | 0.90 (0.52, 0.1.55) | .71 |
| Single specialty group, office based | 0.70 (0.44, 1.12) | .13 |
| Multi- specialty group, office based | 0.70 (0.38,1.29) | .26 |
| Office based, Other/unknown | 0.48 (0.18, 1.25) | .13 |
| % patients in managed care | ||
| 0-30 | Reference | -- |
| 31-50 | 0.46 (0.25, 0.84) | .01 |
| 55-85 | 0.53 (0.31, 0.90) | .02 |
| 87-100 | 0.44 (0.25, 0.76) | .003 |
| Practice part of Community Clinical Oncology Program | ||
| No | Reference | -- |
| Yes | 1.28 (0.87, 1.88) | .21 |
| Attend tumor board meetings | ||
| Weekly | 1.82 (1.17, 2.82) | .008 |
| Monthly | 1.61 (1.07, 2.45) | .02 |
| Quarterly or less frequently | Reference | -- |
*
Using logistic regression. Model include