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©The Author(s) 2002.
World J Gastroenterol. Jun 15, 2002; 8(3): 488-492
Published online Jun 15, 2002. doi: 10.3748/wjg.v8.i3.488
Published online Jun 15, 2002. doi: 10.3748/wjg.v8.i3.488
Table 1 Age distribution of two groups of high-risk populations with polyps
Age Group | 1a | 2b | Total (%) | ||
Male (%) | Female (%) | Male (%) | Female (%) | ||
30- | 644 (36.6) | 440 (41.6) | 287 (34.4) | 181 (37.2) | 1552 (38.1) |
40- | 452 (25.7) | 270 (25.6) | 226 (27.1) | 100 (23.7) | 1049 (25.8) |
50- | 434 (24.7) | 237 (22.4) | 204 (24.4) | 99 (23.5) | 974 (23.9) |
60- | 164 (9.3) | 89 (8.4) | 99 (11.9) | 37 (27.2) | 389 (9.6) |
70- | 64 (3.7) | 21 (2.0) | 19 (2.3) | 5 (1.2) | 109 (2.7) |
Total | 1758 | 1057 | 835 | 422 | 4072 |
Table 2 Pathologic features of initial polyps of two groups of high-risk populations
Pathologic Diagnosis | First group | Second group | Total | |||
n | % | n | % | n | % | |
Adenoma | 1485 | 52.88 | 876 | 69.47 | 2361 | 58.02 |
Tubular | 1352 | 48.15 | 843 | 66.85 | 2195 | 53.94 |
Tublovillous | 104 | 3.70 | 31 | 2.46 | 135 | 3.32 |
Villous | 19 | 0.68 | 2 | 0.16 | 21 | 0.52 |
Non-adenomatus | 1326 | 47.22 | 382 | 30.29 | 1708 | 41.98 |
Mucosal | 596 | 21.23 | 95 | 7.53 | 691 | 16.98 |
Juvenile | 183 | 6.52 | 95 | 7.53 | 278 | 6.83 |
Hyperplastic | 113 | 4.02 | 72 | 5.71 | 185 | 4.55 |
Inflammatory | 90 | 3.21 | 4 | 0.32 | 94 | 2.31 |
Schistosomiais | 326 | 11.61 | 115 | 9.12 | 441 | 10.84 |
Lymphoid | 10 | 0.36 | 1 | 0.08 | 11 | 0.27 |
Other | 8 | 0.28 | 0 | 0.00 | 8 | 0.20 |
No pathologic diag | 7 | 0.25 | 3 | 0.24 | 10 | 0.25 |
Total | 2815 | 1261 | 4076 |
Table 3 Output of following with endoscopy among high-risk population with history of polyps
Year | Expected n | Observed n (%) | Adenoma n (%) | Non-adenomatous n (%) | Colorectal cancern (1/100000) |
1st group | |||||
1979 | 2803 | 2197 (78.38) | 178 (8.10) | 104 (4.73) | 6 (273.10) |
1981 | 2763 | 1592 (57.62) | 61 (3.83) | 27 (1.70) | 4 (251.26) |
1983 | 2719 | 2147 (78.96) | 108 (5.03) | 33 (1.54) | 2 (93.15) |
1987* | 2689 | 2408 (89.52) | 191 (7.93) | 96 (4.00) | 4 (166.11) |
1993* | 2388 | 1475 (61.77) | 121 (8.20) | 52 (3.53) | 4 (271.19) |
1998* | 2207 | 1020 (46.22) | 95 (9.31) | 17 (1.67) | 4 (392.16) |
2nd group | |||||
1982 | 1253 | 461 (36.79) | 17 (3.69) | 6 (1.30) | 0 (0.00) |
1984 | 1235 | 1056 (85.51) | 49 (4.64) | 26 (2.46) | 0 (0.00) |
1988* | 1183 | 931 (78.70) | 64 (6.87) | 20 (2.15) | 0 (0.00) |
1994* | 1097 | 479 (43.66) | 33 (6.68) | 17 (3.55) | 3 (626.30) |
1998* | 1040 | 486 (46.73) | 36 (7.41) | 17 (3.50) | 0 (0.00) |
Total | 1425 | 2953 (6.68) | 417 (2.93) | 27 (189.45) |
- Citation: Zheng S, Liu XY, Ding KF, Wang LB, Qiu PL, Ding XF, Shen YZ, Shen GF, Sun QR, Li WD, Dong Q, Zhang SZ. Reduction of the incidence and mortality of rectal cancer by polypectomy: a prospective cohort study in Haining County. World J Gastroenterol 2002; 8(3): 488-492
- URL: https://www.wjgnet.com/1007-9327/full/v8/i3/488.htm
- DOI: https://dx.doi.org/10.3748/wjg.v8.i3.488