Table 1.

Characteristics and Clinical Data of Patients by Treatment Group

	Usual Practice (n = 191)	CPG-Directed Practice (n = 122)	p-value
Age, mean years (SD)	8.8 (4.0)	8.7 (4.1)	0.78
Male sex, No. (%)	111 (58)	74 (61)	0.66
Race/Ethnicity, No. (%)			0.22
Non-Hispanic White	116 (61)	80 (66)
Hispanic	44 (23)	31(25)
African American	23 (12)	7 (6)
Other	3 (2)	4 (3)
Unknown	5 (3)	0 (0)
Insurance Status, No. (%)			0.33
Public insurance	117 (61)	68 (56)
Nonpublic insurance	74 (38)	54 (44)
Intra-abdominal abscess on pre-operative CT/US, No. (%)	45 (24)	26 (21)	0.64
Type of surgery, No. (%)			0.85
Open	11 (6)	8 (7)
Laparoscopic	167 (87)	104 (85)
Laparoscopic converted to open	13 (7)	10 (8)

CPG = Clinical Practice Guideline, CT = Computed Tomography, US = Ultrasound