Single balloon enteroscopy in the elderly

Table 1 Demographics and clinical characteristics of patients in the entire cohort and by age groups, n (%)

Factor	Entire cohort (n = 227)	Age (years)			P value
		< 65 (n = 117)	65-75 (n = 57)	> 75 (n = 53)
Age (years), mean ± SD	61.9 ± 16.7	49.4 ± 13.1	69.5 ± 3.1	81.3 ± 3.8	-
BMI (kg/m2), mean ± SD	28.0 ± 6.3	28.4 ± 6.2	28.2 ± 7.2	26.9 ± 5.3	0.33
Gender					0.86
Female	130 (57.27)	69 (58.97)	32 (56.14)	29 (54.72)
Male	97 (42.73)	48 (41.03)	25 (43.86)	24 (45.28)
Ethnicity					0.14
Non-Hispanic	128 (56.64)	73 (62.93)	29 (50.88)	26 (49.06)
Hispanic	98 (43.36)	43 (37.07)	28 (49.12)	27 (50.94)
Indication of enteroscopy
GI bleeding	109 (48.02)	50 (42.74)	23 (40.35)	36 (67.92)	0.004
Abdominal pain	32 (14.10)	28 (23.93)	2 (3.51)	2 (3.77)	< 0.001
Iron deficiency anemia	109 (48.02)	52 (44.44)	32 (56.14)	25 (47.17)	0.35
Others1	110 (48.46)	57 (48.72)	32 (56.14)	21 (39.62)	0.22
Number of indications					0.74
1	99 (43.61)	52 (44.44)	25 (43.86)	22 (41.51)
2	88 (38.77)	42 (35.90)	25 (43.86)	21 (39.62)
≥ 3	40 (17.62)	23 (19.66)	7 (12.28)	10 (18.87)
Prior video capsule	160 (70.80)	78 (67.24)	44 (77.19)	38 (71.70)	0.39
Route					0.22
Antegrade	194 (85.46)	104 (88.89)	45 (78.95)	45 (84.91)
Retrograde	33 (14.54)	13 (11.11)	12 (21.05)	8 (15.09)
Bypass-yes	19 (8.37)	13 (11.11)	4 (7.02)	2 (3.77)	0.29

¹Others include abnormal capsule (n = 98), abnormal imaging (n = 24), diarrhea (n = 12), weight loss (n = 1), possible bile leak (n = 1), melena (n = 1).

BMI: Body mass index; GI: Gastrointestinal.