Appendix 2.

Comparison of Hospital Characteristics by Patient Care Model*

	General Surgeon On-call Model (N=1354)	Acute Care Surgery Model (N=1048)	p- value**
Setting, N (%)
University-based	216	1138	<.0001
Community-based	698	35
State/County/City/Public	134	134
Other	0	47
Location, N (%)
Urban	487	1167	<.0001
Suburban	370	118
Rural	191	69
Teaching Status, N (%)
Teaching	812	1347	<.0001
Non-teaching	236	7
Trauma Center Verification, N (%)
Level 1	208	1312	<.0001
Level 2	120	21
Level 3	87	7
Not a designated trauma center	633	14
Inpatient Bed Capacity, N (%)
>500	235	946	<.0001
401-500	165	227
301-400	291	117
201-300	105	57
101-200	135	7
< 100	0	117

^**Pearson Chi² Test of Association