Case-control study on risk factors of pulmonary tuberculosis in rural area of Jiangsu

  Objective   To explore risk factors of pulmonary tuberculosis (PTB) among peasants in Jiangsu province.

  Methods   Using pair matched case-control study, 318 PTBs and 318 controls(pairs matched for age, sex and location) were randomly sampled from countrymen in 3 selected countries; subjects were face-to-face interviewed by trained personals; data was analyzed with conditional logistic regression; ORs of relevant factors were calculated.

  Results   Single-variable analysis showed that capita-income, type of house, housing area per member, nourishment(meat, eggs), fatigue after working, heavy economic burden, negative events, catching relevant disease, smoking, history of exposure to PTB were associated with incidence of PTB, with ORs of 0.726, 0.649, 0.823, 0.913, 0.906, 1.849, 2.027, 3.867, 2.355, 1.389, 3.599, all P < 0.05, but all factors except for smoking, type of house, housing area per member entered into multiple regression model.

  Conclusion   The epidemic situation of PTB would be controlled with well-managed PTB and with measures against other risk factors.