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Is the Prevalence of Gallbladder Polyp Different between Vegetarians and General Population?
Hee Bum Jo1, Jun Kyu Lee1, Min Young Choi1
1Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang, Korea.
Background/Aims:
Gallbladder polyps (GBP) are a common clinical finding that can express malignant potential. The aim of this study was to evaluate whether vegetarianism protects against GBP, together with other putative risk factors.
Methods:
A retrospective, cross-sectional study was conducted with subjects who received a health check-up from July 2005 to December 2011. Korean Buddhist priests, who are obligatory vegetarians by religious belief, were identified as vegetarians (vegetarian group) and compared with a non-vegetarian control group sampled from those coming for health check-ups at the same institution.
Results:
Out of 18,483 subjects, GBP were found in 810 (4.4%). Al though GBP tended to be less common in the vegetarian group (23 [3.5%] out of 666) than in control group (787 [4.4%] out of 17,817), the difference was insignificant statistically (p=0.233). By logistic regression, old age (OR=1.61, 95% CI=1.1 9-2.26 for 30-39 years; OR=1.47, 95% CI=1.08-1.98 for 40-49 years), male gender (OR=1.51, 95% CI=1.31-1.75), high BMI (OR=1.18, 95% CI=1.00-1.39 for ≥ 23.0 kg/m(2) and < 25.0 kg/m(2) ) and HBsAg positivity (OR=1.53, 95% CI=1.19-1.98) were independent risk factors of GBP.
Conclusions:
GBP was significantly associated with old age, male gender , high BMI and HBsAg positivity, but not with vegetarianism.
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