Table 7

Predictors of post-ERCP cholangitis

Variable	Cholangitis (n=21)	No cholangitis (n=1058)	OR	95% CI	P value
Clinical
Age
<40 years	2	216	0.41	0.09 to 1.78	0.23
40–70 years	14	580	1.65	0.66 to 4.12	0.28
>70 years	5	262	0.95	0.35 to 2.62	0.92
Sex
Male	6	392	0.49	0.19 to 1.21	0.12
Female	15	666	Reference group	Reference group
ASA grade
I	0	19	1.24	0.07 to 21.2	0.88
II	6	321	0.92	0.35 to 2.39	0.86
III	10	472	1.13	0.48 to 2.68	0.78
IV and V	5	152	1.86	0.67 to 5.16	0.23
Ethnicity
Afro-Caribbean	12	466	1.69	0.71 to 4.05	0.24
African American	5	379	0.56	0.20 to 1.54	0.26
White	0	45	0.52	0.03 to 8.69	0.65
Other	4	168	1.25	0.41 to 3.75	0.7
Suspected or known malignant stricture	6	74	5.32	2.0 to 14.1	0.001
Primary sclerosing cholangitis	0	5	4.45	0.24 to 83.1	0.32
Procedural
ASGE complexity grade
1	3	165	0.92	0.26 to 3.22	0.9
2	9	552	0.68	0.27 to 1.72	0.41
3	6	168	2.25	0.84 to 6.09	0.11
4	0	40	0.59	0.04 to 9.98	0.72
HOUSE complexity score
1	9	767	0.28	0.11 to 0.71	0.01
2	7	166	2.96	1.15 to 7.64	0.03
3	3	76	2.3	0.66 to 8.08	0.19
Antibiotics before procedure	12	448	2.23	0.71 to 6.98	0.17
Incomplete biliary drainage	4	67	3.48	1.14 to 10.6	0.03
Biliary stent placement	3	161	0.93	0.27 to 3.19	0.91