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对云南临沧云县地区４６６名彝族自然人群ＨＰ感染情况及其危险因素分析。通过Ｌｏｇｉｓｔｉｃ多因素分析和卡方检验单因素分析，结果发现：云县地区彝族的ＨＰ感染率为５３．０％；ＨＰ感染率随年龄增长而增加；多因素Ｌｏｇｉｓｔｉｃ分析筛选出的主要危险因素是饮水习惯、饮用水源、家庭胃癌史、吸毒和养猪；大蒜是重要保护因素。单因素卡方检验筛选出的有关联因素为饮水习惯、上消化道症状，使用抗生素、养鸡、家庭胃癌史、饮用水源、家庭溃疡史、中药、养狗和吸毒。
Analysis on HP Infection and Risk Factors of 466 Yi Ethnic Populations in Yun County, Lincang County, Yunnan Province. By Logistic multivariate analysis and chi-square test univariate analysis, the results showed that: HP infection rate of Yi people in Yunxian district was 53.0%; HP infection rate increased with age; the main risk factors screened by multivariate logistic analysis were Drinking habits, sources of drinking water, family history of gastric cancer, drug abuse and pigs; garlic is an important protective factor. The univariate chi-square test screened out the associated factors are drinking habits, upper gastrointestinal symptoms, the use of antibiotics, chicken, family history of gastric cancer, drinking water, history of family ulcers, traditional Chinese medicine, dog and drug abuse.