目的了解呼伦贝尔草原及阿拉善沙漠地区陆军新兵幽门螺杆菌(H.pylori)感染率及相关影响因素。方法横断面抽取2013年8-11月阿拉善沙漠及呼伦贝尔草原地区9个中心的900名男性新兵,年龄16~24岁。采用13C-尿素呼气试验和问卷调查表判断当前感染状态及相关影响因素,采用χ2检验及多元logistic回归分析H.pylori感染的影响因素。结果呼伦贝尔草原陆军H.pylori感染率为47.5%,阿拉善沙漠陆军H.pylori感染率为44.8%;兵源地为华西和华中地区及入伍前居住于农村的新兵H.pylori感染率较高(P<0.05);H.pylori阳性新兵的血清胃蛋白酶原PGⅠ、PGⅡ含量增加,PGR(PGⅠ/PGⅡ)比值降低(P<0.05);多因素logistic回归分析表明,使用肥皂、吸烟、口腔异味、口腔异味合并痤疮与H.pylori感染呈正相关。结论内蒙古新兵H.pylori感染率较既往研究低;入伍前居住环境为新兵H.pylori感染的影响因素;吸烟、使用肥皂、口腔异味、口腔异味合并痤疮是新兵H.pylori感染的危险因素。血清胃蛋白酶原检测有助于新兵H.pylori感染的诊断。 Objective To understand the infection rate of Helicobacter pylori (H.pylori) and related influencing factors among army recruits in Hulunbuir steppe and Alashan desert regions. Methods A total of 900 male recruits from 9 centers in the Alashan Desert and Hulun Buir Prairie Fields from August to November in 2013 were collected in cross-section. The ages ranged from 16 to 24 years old. The 13C-urea breath test and questionnaire were used to determine the current status of infection and related factors, and the influencing factors of H.pylori infection were analyzed by Chi-square test and multivariate logistic regression. Results The H.pylori infection rate in the army of Hulunbeier grassland was 47.5%, and the infection rate of H.pylori in the Alashan desert army was 44.8%. The prevalence of H.pylori infection in recruits recruited from rural areas in West China and Central China was higher (P (P <0.05). Multivariate logistic regression analysis showed that the use of soap, smoking, oral odor, oral cavity Odor with acne and H.pylori infection was positively correlated. Conclusions The infection rate of H.pylori in recruits in Inner Mongolia is lower than before. The living environment before recruiting is the influencing factor of recruiting H.pylori infection. Smoking, soaping, oral odor and oral acne combined with acne are the risk factors of recruiting H.pylori infection. Serum pepsinogen test is helpful for the diagnosis of recruit H.pylori infection.