Evaluation of the diagnostic and therapeutic utility of retrograde through-the-scope balloon enteroscopy and single-balloon enteroscopy

Table 1 Patient demographics and clinical characteristics

	Enteroscope device
	Entire cohort	Retrograde SBE1	Retrograde TTSE2
Number of patients	75	49	26
	Mean (standard deviation)	Mean (standard deviation)	Mean (standard deviation)	P value
Age (yr)3	61.2 (17.6)	62.6 (16.5)	58.4 (19.6)	0.33
Body mass index3	29.0 (6.1)	28.7 (6.3)	29.6 (5.9)	0.55
Gender, n (%)				0.63
Female	43 (57.3)	27 (55.1)	16 (61.5)
Male	32 (42.7)	22 (44.9)	10 (38.5)
Ethnicity, n (%)				0.91
Hispanic	27 (36.0)	18 (36.7)	9 (34.6)
Other non-hispanic	10 (13.3)	7 (14.3)	3 (11.5)
White	38 (50.7)	24 (49.0)	14 (53.9)
Indication3				0.63
Iron deficiency anemia, n (%)	41 (50.6)	28 (51.9)	13 (48.2)
Overt GI bleeding	37 (45.7)	23 (42.6)	14 (51.9)
Abdominal pain	17 (21.1)	7 (13.0)	10 (37.0)
Diarrhea	7 (8.6)	4 (7.4)	3 (11.1)
FAP screening	2 (2.5)	2 (3.7)	0 (0)

¹Single balloon enteroscopy.

²Through the scope.

³Some patients have 2 indications. GI: Gastrointestinal; FAP: Familial adenomatous polyposis; SBE: Single balloon enteroscopy; TTSE: Through–the-scope enteroscopy.