Reference

No. examined

No. (%) incidence of gastro-intestinal cancers

Al-Saleem, et al. [40]

34

Small intestine

Meziad, et al. [41]

1601

Gastro-intestinal:

Basrah 253 (15.8)

Thi-Qar 143 (8.9)

Missan 82 (5.1)

Raziq, et al. [35]

155

Gastric (87.7) 

Lymphoma (6.5)

Gastro-intestinal stromal (4.5)

Neuroendocrine (1.3)

Shahid, et al. [33]

50

Esophagogastric junction 44 (22)

Body 10 (20)

Antrum 18 (36)

Abood, et al. [42]

47

Stomach 21 (45)

Jejunum/ileum 16 (34)

Colorectal 5 (11)

Duedenum 3 (6)

Al-Dahhan & Lami [39]

7246

Anal & anal junction 27 (3.8)

Colon 315 (44.6)

Rectosigmoid junction 15 (2.1)

Rectum 349 (49.4)

Al-Rubaie, et al. [43]

63

Rectum & sigmoid region (77.8)

Rectum alone 37 (58.7)

Sigmoid colon 12 (19.0)

Cecum 7 (11.1)

Ascending colon 2 (3.2)

Akram, et al. [38]

120

Stomach 2 (1.67)

Esophagus 1 (0.83)

Amen, et al. [44]

-

Colorectal 38748 (7.6)  

Stomach 29

Dhahir & Noaman [30]

35

Colorectal

Abood, et al. [36]

74

Rectosigmoid 17 (22.9)

Sigmoid 9 (12.1)

Descending colon 6 (12.1) 

Transverse colon 2 (2.7)

Ascending colon 7 (9.4)

Caecum 16 (21.6)

Al-Abachi [45]

257

Colon (13.2)

Ibrahem, et al. [46]

20880

Rectum (37.2) in 2000

               (31.4) in 2019

Rectosigmoid (3.6) in 2000

                         (2.0) in 2019

Colon 13774 (66.0)

Amen, et al. [37]

1573 E

7330 D

Colorectal 1191 E

                   582 D

Stomach 604 E

                 239 D

Small intestine 58 E

                         6 D

Soliman & Mohamad [47]

60

Left colon.