Univariable and multivariable analysis of factors predictive of participants selecting they would be ‘likely’ or ‘very likely’ to offer an operation to the patient in each case; participant selections were averaged across all scenarios across all cases
| | Univariable | Multivariable* | ||
| n (%) | P value | Incidence rate ratio (95% CI) | P value | |
| Gender | ||||
| Female | 30 (45.5) | 0.241 | ||
| Male | 114 (55.3) | |||
| Fellowship training | ||||
| Surgical oncology | 73 (73.0) | <0.001 | Excluded† | |
| Trauma/acute care | 55 (39.0) | |||
| Current practice | ||||
| Surgical oncology | 78 (70.3) | <0.001 | Reference | – |
| Trauma/acute care | 67 (41.4) | 0.61 (0.49 to 0.76) | <0.001 | |
| Years in practice | ||||
| <5 | 27 (41.5) | 0.001 | 0.66 (0.47 to 0.91) | 0.011 |
| 5–10 | 32 (44.4) | 0.65 (0.48 to 0.89) | 0.008 | |
| 11–15 | 25 (71.4) | 0.90 (0.68 to 1.19) | 0.462 | |
| 16–20 | 17 (44.7) | 0.61 (0.42 to 0.88) | 0.009 | |
| 21–25 | 17 (58.6) | 0.78 (0.56 to 1.09) | 0.150 | |
| >25 | 27 (79.4) | Reference | – | |
| Type of practice | ||||
| Academic | 87 (52.7) | 0.452 | ||
| Private | 26 (59.1) | |||
| Location | ||||
| Northeast | 38 (65.5) | 0.101 | Reference | – |
| Southeast | 39 (53.4) | 0.93 (0.70 to 1.22) | 0.586 | |
| Midwest | 39 (55.7) | 1.02 (0.79 to 1.32) | 0.880 | |
| Southern | 7 (33.3) | 0.59 (0.32 to 1.08) | 0.087 | |
| Mountain West | 10 (45.5) | 1.06 (0.66 to 1.71) | 0.818 | |
| Pacific | 12 (41.4) | 0.79 (0.51 to 1.23) | 0.301 | |
| Rurality | ||||
| Urban | 77 (47.0) | 0.017 | Reference | – |
| Suburban | 49 (63.6) | 1.34 (1.06 to 1.70) | 0.014 | |
| Rural | 17 (68.0) | 1.56 (1.14 to 2.13) | 0.006 | |
*All variables with p<0.20 on univariable analysis included in multivariable analysis.
†Fellowship training excluded from multivariable analysis as this variable is confounding with the variable describing current practice.