Table 3. Patient Outcomes Stratified by SES from the ED.

	High Income 2	%	Low Income 3	%
ABDOMINAL PAIN
Organic	331,196	46.7	383,012	49
Functional	158,294	22.3	160,635	20.6
APPENDICITIS
Total	30,282	4.3	19,757	2.5
With Perforation 1	9,163	30.3	7,805	39.5
Hospitalization	101,794	20.8	82,468	15.2
ICU	24,356	3.4	18,938	2.4
	High Income 2	%	Low Income 3	%
ABDOMINAL PAIN
Organic	331,196	46.7	383,012	49
Functional	158,294	22.3	160,635	20.6
APPENDICITIS
Total	30,282	4.3	19,757	2.5
With Perforation 1	9,163	30.3	7,805	39.5
Hospitalization	101,794	20.8	82,468	15.2
ICU	24,356	3.4	18,938	2.4

¹Percentage calculated as a fraction of patients with appendicitis.

²High Income is defined as greater than top quartile income of $52,917.

³Low Income is defined as below the bottom quartile income of $32,214.