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Copyright ©2008The WJG Press and Baishideng.
World J Gastroenterol. Mar 14, 2008; 14(10): 1534-1538
Published online Mar 14, 2008. doi: 10.3748/wjg.14.1534
Table 1 Long lasting symptoms indicating a total colonoscopy and results regarding each symptom n (%)
Indicating symptomPolypCancer
Rectal bleeding (n = 142)20 (14.1)4 (2.8)
Diarrhea (n = 164)7 (4.3)1 (0.6)
Constipation (n = 48)3 (6.3)2 (4.2)
Altering bowel habit (n = 27)1 (3.7)1 (3.7)
Abdominal pain (n = 147)16 (10.9)7 (4.8)
Irritable bowel disease (n = 7)1 (14.3)0
History of polyp (n = 4)00
Unexplained anemia (n = 35)7 (20.0)5 (14.3)
Cancer in other organs (n = 25)4 (16.0)2 (8.0)
Family history of cancer (n = 10)2 (20.0)0
Abnormal barium enema (n = 15)3 (20.0)0
Others (n = 8)1 (12.5)1 (12.5)
Table 2 Age distribution of colorectal neoplasm detected by total colonoscopy in Iranian symptomatic patients n (%)
< 30 (n = 108)30-39 (n = 110)40-49 (n = 90)50-59 (n = 88)60-69 (n = 48)70-79 (n = 31)80 < (n = 3)All (n = 480)
Colorectal cancer002 (2.2)6 (6.8)4 (8.3)4 (12.9)016 (3.6)
Colorectal adenomatous polyp5 (4.6)10 (9.1)11 (12.2)18 (20.5)7 (14.6)5 (16.1)056 (11.7)
Table 3 Age and size of the polyp in the patients according to polyp location (mean ± SD)
Size (mm)Age (yr)
Rectum8.83 ± 13.2241.80 ± 13.83
Sigmoid13.00 ± 8.4857.33 ± 8.43
Descending colon10.18 ± 9.0849.69 ± 12.10
Transverse colon5.16 ± 3.1841.29 ± 20.05
Ascending colon6.60 ± 1.5159.20 ± 8.28
Caecum851.50 ± 7.77