title: Detection of chronic obstructive pulmonary disease in community-based annual lung cancer screening: Chiba Chronic Obstructive Pulmonary Disease Lung Cancer Screening Study Group.
abstract: OBJECTIVE
  Detection of chronic obstructive pulmonary disease (COPD) is crucial in the management of COPD. The aim of this study was to establish the utility of a community-based lung cancer screening for detecting COPD.
  
  
  METHODS
  In Japan, community-based lung cancer screening for residents who are 40 years or older using chest radiography is well established. A screening system in Chiba City, Japan, was used to detect COPD. The criteria to consider COPD at screening included age of 60 years or older, a smoking history and chronic respiratory symptoms. Participants fulfilling these criteria were referred for diagnostic evaluation consisting of pulmonary function testing (PFT) and chest computed tomography (CT).
  
  
  RESULTS
  Of 89,100 Chiba City residents who underwent lung cancer screening, 72,653 residents were 60 years or older. Among them, 878 (1.0%) were identified with suspected COPD and referred for further evaluation. Of those identified, a total of 567 residents (64.6%, 567/878) underwent further evaluations, and 161 (28.4%) were reported to have COPD, with 38.5% of them requiring COPD treatment. To verify the diagnoses from the secondary evaluation centres, PFT and CT data were collected from 228 study participants, and 24.9% were diagnosed with COPD. CT findings classified according to the Goddard classification revealed that 20.1% of these participants had moderate to severe emphysema.
  
  
  CONCLUSIONS
  COPD screening added to a community-based lung cancer screening programme may be effective in the detection of patients with COPD.
authors.affiliation: Department of Thoracic Surgery, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Chiba, Japan.
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Sekine
authors.forename: Takehiko
authors.initials: T
authors.lastname: Fujisawa
authors.forename: Kiminori
authors.initials: K
authors.lastname: Suzuki
authors.forename: Shuko
authors.initials: S
authors.lastname: Tsutatani
authors.forename: Kazuko
authors.initials: K
authors.lastname: Kubota
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ikegami
authors.forename: Yuji
authors.initials: Y
authors.lastname: Isobe
authors.forename: Mitsugu
authors.initials: M
authors.lastname: Nakamura
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Takiguchi
authors.forename: Koichiro
authors.initials: K
authors.lastname: Tatsumi
mesh_terms: D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D055088:Early Detection of Cancer; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D008175:Lung Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000453:epidemiology; D008297:Male; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D015995:Prevalence; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis* / Q000453:epidemiology / Q000209:etiology; D013902:Radiography, Thoracic; D012129:Respiratory Function Tests; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed
keywords: chronic obstructive pulmonary disease; computed tomography; lung cancer; pulmonary function testing; screening