Table 4.
Ref. | Country | Pub. year | Years | Prevalence of polyps | No. of polyps | Median age (yr) | Gender (F/M) | FGP | HPP | Adenoma |
Deppisch et al[7] | United States | 1989 | 10 | - | 121 | - | - | 17% | 75% | 8.6% |
Stolte et al[12] | Germany | 1994 | 20 | - | 5515 | NR | NR | 47% | 28.3% | 9% |
Sivelli et al[13] | Italy | 2002 | 6 | 164 | 61.4 | 01:01.5 | NR | 44.5% | 16.4% | |
Gencosmanoglu et al[14] | Turkey | 2003 | 5 | - | 150 | 53 | 1.4:1 | 14% | 64% | 3% |
Morais et al[1] | Brazil | 2007 | 5 | 153/26000 (0.59%) | 153 | 64 | 01:01.4 | 16.3% | 71.3% | 12.4% |
Carmack et al[5] | United States | 2009 | 1 | 7877/121564 (6.35%) | 7877 | 56 | 1.4:1 | 77% | 17% | 0.7% |
Cao et al[10] | China | 2000 | 1 | 68/6784 (1.0%) | 68 | 56.8 | 1.7:1 | 8.8% | 48.5% | 14.7% |
Cao et al[10] | China | 2010 | 1 | 183/17337 (1.0%) | 183 | 55.9 | 2.0:1 | 66.1% | 20.8% | 4.9% |
The present study | China | 2004-2013 | 10 | 183/157902 (2.60%) | 4043 | 54.7 | 1.75: 1 | 65% | 25% | 1.9% |
The present study | China | 2013 | 1 | 828/17787 (4.7%) | 828 | 54.6 | 2.12:1 | 75% | 17% | 0.5% |
Sonnenberg et al[17] | United States | 2015 | 1 | 71575 /927137 (7.72%) | 71575 | - | 2.03:1 | 79.9% | 18.6% | 0.92% |
NR: Not reported; GP: Gastric polyp; FGP: Fundic gland polyp; HPP: Hyperplastic polyp.