[A case control study of lung cancer among workers in dagang oil field, tianjin, china.]
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Yaguang Fan1, Jian Wei, Yun Bai
1Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, China; Institute of Radiation Medicine, Chinese Academy of Medical sciences, Tianjin 300192, China.
Background:
To investigate the risk factors of lung cancer among the employees who had worked in Dagang oil field, Tianjin, China.
Methods:
A matched case control study was conducted to analyse the association between some exposures and lung cancer risk by univariate and multiple Logistic regression method.
Results:
According to the results from univariate and multiple analysis, smoking and previous lung disease increase lung cancer risk with adjusted OR of 1.52 (95%CI: 1.18-1.94) and 3.37 (95%CI: 1.88-7.16) respectively, while the adjusted OR for occupational chemical toxic substance and dust exposure is 0.73 (95%CI: 0.69-1.30) and 0.84 (95%CI: 0.62-1.15) respectively, and there is no significant association between family history of cancer and lung cancer risk in this study.
Conclusions:
Smoking and previous lung disease are the independent risk factors for lung cancer among workers in Dagang oil field, yet due to some potential epidemiological bias, the association between occupational exposure and lung cancer needs further investigation.
