• 1. Department of Respiratory and Critical Care Medicine, Clinical Research Center for Respiratory Disease, West China Hospital, Sichuan University, Chengdu 610041, P.R.China;
  • 2. Center of Infectious Disease, West China Hospital, Sichuan University, Chengdu 610041, P.R.China;
  • 3. Center for Disease Control and Prevention of Mianyang, Mianyang 621000, P.R.China;
  • 4. Center for Disease Control and Prevention of Fucheng, Mianyang 621000, P.R.China;
  • 5. Center for Disease Control and Prevention of Jiangyou, Jiangyou 621700, P.R.China;
JI Yulin, Email: 790754788@qq.com
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Objective To analyze the incidence and risk factors of tuberculosis in the city of Mianyang based on data from active cases.Methods From March 2018 to April 2019, 199 182 residents were selected for the study. Data were collected using a questionnaire, digital radiography (DR), physical examination and laboratory tests. The incidence of tuberculosis was estimated, and multivariate logistic regression was used to identify factors associated with the disease.Results Throughout the process, 103 residents were diagnosed with active tuberculosis, corresponding to an incidence of 51.71 per 100 000. Risk of tuberculosis was significantly higher among individuals who were over age 60 (OR=1.74, 95%CI 1.11 to 2.73, P=0.02), males (OR=4.39, 95%CI 2.74 to 7.04, P<0.001), medical workers (OR=11.18, 95%CI 2.99 to 41.84, P<0.001), and those with a history of tuberculosis (OR=16.43, 95%CI 8.10 to 33.33, P<0.001). Conversely, individuals with higher levels of education were associated with lower risk of tuberculosis: compared to those with primary school or less, those with a junior high school education had an OR of 0.53 (95%CI 0.30 to 0.88, P=0.02); high school/technical school had an OR of 0.36 (95%CI 0.15 to 0.92, P=0.03); junior college or above had an OR of 0.23 (95%CI 0.06 to 0.88, P=0.04).Conclusions Analyzing tuberculosis epidemiology based on active cases can help detect the disease as well as control or even prevent epidemics. Individuals who are more senior, males, medical workers, with a history of tuberculosis, and those with lower levels of education may be at higher risk of the disease. These results may improve screening efforts and allow timely intervention.

Citation: ZHANG Xuan, ZHU Xia, SUN Hongying, WANG Xiaoli, WANG Liping, WANG Ting, HUANG Weiwei, LIANG Zongan, WANG Gang, JI Yulin. The incidence and risk factors of tuberculosis in Mianyang in Sichuan Province. Chinese Journal of Evidence-Based Medicine, 2021, 21(6): 642-647. doi: 10.7507/1672-2531.202101013 Copy

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