Table 3.

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.