Comparison of clinical outcomes for single- and double-balloon enteroscope-assisted endoscopic retrograde cholangiopancreatography in patients with surgically altered anatomy

Table 5 Risk factors for the intubation failure

Variable	Univariable analysis		Multivariable analysis
	OR (95%CI)	P value	OR (95%CI)	P value
SBE (vs DBE)	0.63 (0.26-1.46)	0.289
Age > 65 years	1.11 (0.48-2.71)	0.813
Male sex	0.99 (0.42-2.42)	0.979
Acute cholangitis on admission	1.18 (0.49-2.73)	0.703
PTBD prior ERCP	2.21 (0.50-6.90)	0.222
Resection
PD (vs BDR)	0.50 (0.17-1.45)	0.197
STG (vs BDR)	0.16 (0.04-0.54)	0.004
TG (vs BDR)	0.38 (0.10-1.24)	0.122
Reconstruction
B-II Braun (vs B-II)	7.34 (1.28-138.32)	0.064	5.13 (0.87-97.60)	0.132
R-Y (vs B-II)	8.69 (1.73-158.02)	0.037	8.65 (1.71-157.60)	0.038
Preserved gastric anatomy	3.09 (1.31-7.80)	0.012	3.18 (1.30-8.31)	0.013

OR: Odds ratio; CI: Confidence interval; SBE: Single-balloon enteroscopy; DBE: Double-balloon enteroscopy; PTBD: Percutaneous transhepatic biliary drainage; ERCP: Endoscopic retrograde cholangiopancreatography; PD: Pancreaticoduodenectomy; BDR: Bile duct resection; STG: Subtotal gastrectomy; TG: Total gastrectomy; B-II: Billroth II reconstruction; R-Y: Roux-en-Y reconstruction.