eTable 1. Baseline characteristics of participating physicians.

Physicians	Intervention (n = 12)	Control (n = 12)	p*
Age, years, mean ± SD	52.1 ± 12.3	51.6 ± 6.7	0.903
Male, n (%)	8 (66.7)	9 (75.0)	1.000
Degree, n (%) [multiple responses]
Primary care physician (BC), n (%)	8 (66.7)	6 (50.0)	0.408
Internal medicine (BC), n (%)	3 (25.0)	4 (33.3)	1.000
Internal and general medicine (BC), n (%)	1 (8.3)	4 (33.3)	0.317
Self-employed, n (%)	11 (91.7)	12 (100.0)	1.000
Time since medical license, years, mean ± SD	24.6 ± 8.8	23.5 ± 7.9	0.770

Percentages are reported for valid cases.SD, standard deviation; BC, Board Certified\

^*Data of the intervention and the control arm were compared using chi-square tests for categorical variables and t-tests in independent samples for continuous variables