Balloon-Assisted Enteroscopy for Retrieval of Small Intestinal Foreign Bodies: A KASID Multicenter Study

Table 3

Univariable and multivariable analyses of factors associated with successful retrieval of all foreign bodies using balloon-assisted enteroscopy.

Variables	Univariable analysis			Multivariable analysis
	OR	95% CI		OR	95% CI
Age (per 1 year increase)	1.02	0.98-1.05	0.421	1.01	0.96-1.07	0.619
Sex (male vs. female)	0.76	0.18-3.23	0.714	1.82	0.16-20.49	0.628
Previous abdominal operation history	0.62	0.16-2.42	0.493
Previous small bowel operation	0.31	0.06-1.48	0.141	0.09	0.01-1.37	0.082
FB (not capsule vs. capsule)	2.62	0.66-10.48	0.174	0.79	0.06-9.88	0.853
FB shape			0.750
Blunt	1.00
Long	1.80	0.39-8.22	0.448
Sharp-pointed	1.20	0.07-21.72	0.902
Length of FB (per 1 mm increase)	1.00	0.98-1.02	0.970
Diameter of FB (per 1 mm increase)	1.06	0.96-1.17	0.259
Duration of retention (per 1 day increase)	0.95	0.88-1.02	0.178	0.94	0.83-1.06	0.314
FB location			0.170			0.577
Jejunum	1.00			1.00
Ileum	0.25	0.06-1.06	0.060	0.55	0.07-4.52
Indefinite	NA	NA	NA	NA	NA	NA
Symptom (presence vs. absence)	8.56	1.74-42.17	0.008	13.40	1.10-162.56	0.042
Obstructive sign (presence vs. absence)	6.67	1.15-38.60	0.034	2.45	0.30-20.18	0.405
Enteroscopy type (SBE vs. DBE)	1.94	0.38-9.88	0.423
Enteroscopy route			0.224
Anterograde	1.00
Retrograde	0.26	0.05-1.33	0.106
Bidirectional	0.31	0.02-3.97	0.366
Balloon dilation (done vs. not done)	0.43	0.07-2.76	0.376

OR: odds ratio; CI: confidence interval; FB: foreign body; NA: not applicable; SBE: single-balloon enteroscopy; DBE: double-balloon enteroscopy.