• Yasuo Sekine, Ryoko Yanagibori, Kiminori Suzuki, Sonomi Sugiyama, Haruko Yamaji, Michiko Ishibashi, and Takehiko Fujisawa.
• Chiba Foundation for Health Promotion and Disease Prevention, Chiba, Japan.
• Int J Chron Obstruct Pulmon Dis. 2014 Jan 1;9:647-56.

Background And ObjectivePatients with chronic obstructive pulmonary disease (COPD) are at risk for lung cancer; the diseases have common etiologies, including cigarette smoking. We aimed to clarify the effectiveness of COPD detection using a regional mass-screening program for lung cancer.Materials And MethodsA total of 7,067 residents of Togane, Chiba, Japan received lung cancer screening between May and July, 2011. We defined four groups of possible COPD candidates: group A (n=358), positive smoking history, positive chronic respiratory symptoms; group B (n=766), positive smoking history, positive lifestyle-related disease; group C (n=75), passive smoking history, positive chronic respiratory symptoms; and group D (n=301), passive smoking history, positive lifestyle-related disease. Candidates underwent on-site pulmonary function testing (PFT).ResultsThe criteria for COPD candidates were fulfilled in 1,686 of 7,067 individuals (23.9%); 1,500 participants underwent PFT (89%), and 171 (11.4%) were diagnosed with COPD. The overall COPD detection rate was 2.4%. The frequency of COPD was significantly higher in groups A and B than in groups C and D (P=0.048); however, the distribution of COPD grades was similar among the groups (P=0.372). Multiple logistic regression analysis identified male sex, age 60 years or greater, and positive smoking history as risk factors for COPD.ConclusionCOPD screening using a community-based lung cancer-screening program may be effective for disease detection. Individuals who are 60 years of age or older with a positive smoking history should undergo PFT to detect COPD.

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