幽门螺杆菌不同感染阶段的相关毒力因子及其致病性

Prevalence of and risk factors for Helicobacter pylori infection in patients who underwent gastroscopy from 2010 to 2012 in Liupanshui city

AIM: To investigate the prevalence of and risk factors for Helicobacter pylori (H. pylori) infection in patients who underwent gastroscopy from 2010 to 2012 in Liupanshui city and to discuss its preventive strategies.

METHODS: A total of 59524 patients who underwent endoscopy from 2010 to 2012 in Liupanshui were retrospectively analyzed to investigate the prevalence of and risk factors for H. pylori infection.

RESULTS: The positive rate of H. pylori increased gradually with age. The positive rates of H. pylori in different gastric lesions were different. Ulcer disease, gastric cancer and chronic atrophic gastritis had significantly higher positive rates (χ² = 12.41, P< 0.05). The risk factors for H. pylori infection included age (β = 0.679, S.E.= 0.334, Wald = 14.203, OR = 1.989, P < 0.05), gender (β = 0.564, S.E. = 0.432, Wald = 16.353, OR = 1.868, P < 0.05), diet (β = 0.546, S.E. = 0.449, Wald = 17.293, OR = 1.787, P < 0.05), drinking habit (β = 0.673, S.E.= 0.308, Wald = 15.203, OR = 1.592, P < 0.05), family size (β = 0.599, S.E. = 0.364, Wald = 18.727, OR = 1.329, P < 0.05), living conditions (β = 0.653, S.E.= 0.362, Wald = 15.363, OR = 1.363, P < 0.05), and rearing animals (β = 0.692, S.E. = 0.388, Wald = 15.305, OR = 1.565, P < 0.05).

CONCLUSION: The positive rate of H. pylori infection in patients who underwent gastroscopy in Liupanshui is high, suggesting that H. pylori infection is closely related with the occurrence of gastric ulcer and gastric cancer.