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[Association of chronic obstructive pulmonary disease and lung cancer]
Objective:
To investigate the association between chronic obstructive pulmonary disease (COPD) and lung cancer.
Methods:
A case-control study was undertaken, with 180 cases of lung cancer and 200 cases of controls.
Results:
The odd of lung cancer was higher in patients with COPD, emphysema, chronic bronchitis, and pulmonary tuberculosis (P < 0.05). The odd of lung cancer increased significantly in patients with a family history of lung cancer or COPD (P < 0.05). The odd of lung cancer also increased when forced expiratory volume in one second (FEV1) < 80%.
Conclusion:
Patients with COPD or a family history of COPD have higher risk of lung cancer.
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