Table 2.

Provider characteristics stratified by discharge disposition

Parameter	Orthopaedic trauma					Musculoskeletal infections
	N = 7,067,432	Disposition		p value	AMA discharge rate per 1000	N = 5,488,686	Disposition		p value	AMA discharge rate per 1000
		AMA	Formal discharge				AMA	Formal discharge
Hospital location (%)
Rural	15	10	15	< 0.001	2.0	15	8.8	15	< 0.001	12
Urban	85	90	85		3.2	85	91	85		23
Hospital geographic region (%)
Northeast	19	27	19	< 0.001	4.2	21	29	21	< 0.001	29
Midwest	24	16	16		1.9	22	15	23		14
South	38	36	38		2.8	39	34	39		18
West	19	22	19		3.3	17	22	17		27
Hospital teaching status (%)
Nonteaching	58	48	55	< 0.001	2.5	59	53	59	< 0.001	19
Teaching	42	52	45		3.7	41	48	41		24
Hospital bed size (%)
Small	12	8.0	11	< 0.001	2.0	15	12	15	< 0.001	17
Medium	25	27	25		3.1	26	29	26		24
Large	63	66	64		3.1	59	59	59		21

AMA = against medical advice.