Fields of applications, diagnostic yields and findings of OMOM capsule endoscopy in 2400 Chinese patients

Table 3 Gender and age differences of small bowel findings on OMOM capsule endoscopy in 1232 Chinese patients with obscure gastrointestinal bleeding n (%)

Findings	Male	Female	Age ≤ 60 yr	Age > 60 yr
Sum	731 (100.0)	501 (100.0)	838 (100.0)	394 (100.0)
Negative	277 (37.9)	186 (37.1)	344 (41.1)	119 (30.2)
Positive	454 (62.1)	315 (62.9)	494 (58.9)	275 (69.8)b
Arteriovenous malformations	189 (41.6)	124 (39.4)	206 (41.7)	107 (38.9)
Tumor	117 (25.8)	84 (26.7)	125 (25.3)	76 (27.6)
Polyp	14 (3.1)	10 (3.2)	16 (3.2)	8 (2.9)
Crohn’s disease	17 (3.7)	6 (1.9)	16 (3.2)	7 (2.5)
Ulcer	28 (6.2)	13 (4.1)	33 (6.7)	8 (2.9)
Mucosal erosion	9 (2.0)	10 (3.2)	14 (2.8)	5 (1.8)
Duodenal ulcer	24 (5.3)	14 (4.4)	25 (5.1)	13 (4.7)
Active bleeding	28 (6.2)	29 (9.2)	25 (5.1)	32 (11.6)
Parasite	15 (3.3)	16 (5.1)	18 (3.6)	13 (4.7)
Hookworm	13 (2.9)	13 (4.1)	14 (2.8)	12 (4.4)
Lumbricoides	1 (0.2)	3 (1.0)	3 (0.6)	1 (0.4)
Strobilus	1 (0.2)	0 (0.0)	1 (0.2)	0 (0.0)
Diverticulum	10 (2.2)	8 (2.5)	12 (2.4)	6 (2.2)
Others	3 (0.7)	1 (0.3)	4 (0.8)	0 (0.0)

^bP < 0.001, diagnostic yield, age > 60 years vs age ≤ 60 years.