Table 1.

Weighted Distribution of Categorical Patient Characteristics by Disease Category

	General Patients (n= 546,872,276)		LBF patients (n= 5,929,085)		SCD Patients (n= 1,142,078)		P- value
	Col %	95% CI	Col %	95% CI	Col %	95% CI
% Male	45.7	[45.3,46.2]	50.3	[47.4,53.2]	54.7	[47.4,61.7]	0.001
Expected source of payment							<0.001
Private Insurance	34.9	[33.8,36.1]	41.4	[38.4,44.4]	12.9	[9.1,17.8]
Medicare	16.2	[15.5,16.9]	18.9	[16.5,21.6]	16.8	[11.7,23.4]
Medicaid	23.5	[22.3,24.8]	15.7	[13.5,18.1]	54.0	[46.4,61.4]
Other	20.1	[19.1,21.1]	19.5	[17.2,22.0]	11.5	[7.4,17.3]
Missing	5.3	[4.3,6.4]	4.5	[3.0,6.7]	4.9	[2.7,8.8]
Patient Race							<0.001
White	73.3	[70.9,75.7]	83.5	[80.6,86.1]	2.8	[1.1,6.7]
Black	23.1	[20.8,25.6]	13.0	[10.7,15.8]	95.4	[91.2,97.7]
Other	3.6	[3.0,4.3]	3.5	[2.6,4.7]	1.8	[0.6,5.1]
Triage Level							0.007
Unknown/no triage	13.2	[11.4,15.3]	11.5	[9.2,14.2]	8.2	[5.0,13.3]
<15 minutes	16.3	[15.0,17.7]	18.6	[16.1,21.4]	22.1	[16.8,28.4]
15 to 60 minutes	39.2	[37.0,41.5]	39.0	[35.9,42.1]	48.2	[38.5,58.0]
>1hr to 24 hrs	31.3	[29.0,33.7]	31.0	[27.4,34.8]	21.5	[14.5,30.6]
Pain at Triage							<0.001
(0 to 3) None/Mild	33.9	[32.6,35.2]	15.8	[13.8,18.0]	9.5	[6.1,14.5]
(4 to 6) Moderate	23.7	[22.5,24.9]	34.2	[31.2,37.4]	24.3	[18.7,30.9]
(7 to 10) Severe	19.4	[18.3,20.5]	32.3	[29.7,35.0]	54.1	[46.9,61.0]
Missing	23.1	[21.1,25.3]	17.7	[15.0,20.7]	12.2	[8.6,16.8]
% Arrival by Ambulance	16.0	[15.2,16.8]	25.9	[23.1,28.9]	14.3	[9.9,20.4]	<0.001
% Admitted to Hospital	13.6	[12.8,14.5]	16.5	[14.4,18.8]	35.5	[28.7,42.9]	<0.001
Geographic Region							0.001
Northeast	18.7	[16.8,20.7]	17.5	[15.1,20.1]	24.5	[17.3,33.6]
Midwest	22.5	[18.6,27.0]	26.0	[21.7,30.8]	25.5	[18.1,34.8]
South	41.2	[37.2,45.3]	35.9	[31.8,40.2]	44.1	[33.4,55.4]
West	17.6	[14.5,21.3]	20.6	[17.1,24.7]	5.8	[2.5,13.1]
% Weekend Visit	29.4	[29.2,29.6]	33.1	[30.2,36.1]	27.1	[21.1,34.0]	0.034