Table 1.

Baseline ED characteristics, according to provider type

ED characteristic	Physician sites	MLP sites, supervised	MLP sites, unsupervised	P
	(n = 27)	(n = 21)	(n = 15)
No. of ED visits per year, median (IQR)	50 000 (43 000–70 000)	53 676 (40 000–72 533)	65 000 (55 000–81 244)	.19
No. of ED visits for asthma per year, median (IQR)	990 (511–1610)	804 (453–1500)	1632 (782–2000)	.37
No. of ED beds, median (IQR)	39 (24–51)	32 (26–40)	42 (31–50)	.2
No. of ED physicians, median (IQR), FTE	19 (13–26)	18 (13–24)	20 (16–25)	.6
No. of ED nurses, median (IQR), FTE	55 (43–70)	51 (34–65)	53 (45–64)	.87
Residency affiliated (%)	70	71	93	.23
Census region (%)				.049
Northeast	37	43	60
Midwest	41	19	0
South	11	19	7
West	11	19	33
Urban location (%)	100	100	100	–

FTE indicates full-time equivalent.