Table 1.

Baseline Characteristics of 267 Patients Included in the Study Analysis

	n=267	(%)
Age (average±SD), yr	39.6±15.7
Age >55	45	16.9
Gender, Female	207	77.5
BMI (average±SD)	30.4±7.7
<18.5	4	1.5
18.5–24.9	57	21.3
25–29.9	84	31.5
30–34.9	66	24.7
35–39.9	33	12.4
>40	23	8.6
Ethnicity
Hispanic	218	81.6
Non-hispanic white	26	9.7
African American	14	5.2
Asian	5	1.9
Choledocholithiasis	192	72
Final diagnostic testing (all risk categories)
ERCP	262	98.1
IOC	5	1.87

BMI, body mass index; ERCP, endoscopic retrograde cholangiopancreatography; IOC, intraoperative cholangiogram; SD, standard deviation.