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. 2023 Apr 16;15(4):297–308. doi: 10.4253/wjge.v15.i4.297

Table 4.

Summary of previous studies of gastrointestinal bleeding in children from neighboring countries and worldwide

Ref.
Country
n
Age (yr)
Sex
Bleeding site
Two most common symptoms (%)
Two most common causes (%)
Isa et al, 2023 Bahraina 250 ≤ 18 M > F Both Per rectal bleeding (60.4); Hematemesis (46.8) Inflammatory bowel disease (30.8); Gastritis (28)
Jafari et al[2], 2018 Iran 113 < 18 M > F Both Hematemesis (40.7); Coffee ground vomitus (38) Prolapse gastropathy (18.6) for UGIB; Polyps (32.5) for LGIB
Rafeey et al[10], 2013 Iran 447 < 18 M > F UGIB Hematemesis (26.85); Melena (13.42) Erosive esophagitis (40); Gastric erosion (17)
Zahmatkeshan et al[12], 2012 Iran 363 < 18 M > F LGIB Hematochezia (80.2); Bloody diarrhea (18.1) Juvenile polyp (23.1); Lymphoid nodular hyperplasia (18.2)
Hassoon et al[9], 2012 Iraq 58 4 d-18 M > F UGIB Hematemesis (58.5); Melena or hematochezia (5.2) Esophageal varices (39); Gastric erosions (19.6)
Gimiga et al[6], 2015 Romania 118 < 18 M > F LGIB Hematochezia (54.2); Rectorrhagia (40.7) Solitary colorectal polyps (33); Ulcerative colitis (22)
Cleveland et al[4], 2012 USA 158 < 17 M > F UGIB Hematemesis (73.4); Melena (20.8) Prolapse gastropathy syndrome (12.7); gastric erosions/ulcers (10.8)
a

The present study. UGIB: upper gastrointestinal bleeding; LGIB: lower gastrointestinal bleeding; USA: United states of America.