title: [Lung cancer and COPD: a common combination].
abstract: OBJECTIVE
  To analyse frequency, characteristics and patient survival with lung cancer (LC) and COPD, comparing them with patients without COPD.
  
  
  METHODS
  A retrospective study, of patients diagnosed by means of cytohistology. Survival was estimated by the Kaplan-Meier method. The statistical analysis was carried out using SPSS 15.0.
  
  
  RESULTS
  A total of 996 patients were diagnosed, 39.8% COPD. Mean age 70+/-9.19 years. GOLD stages: I 18.2%, II 53.6%, III 24%, IV 4.2%. The histological types: squamous cell carcinoma 48.2%, adenocarcinoma 22%, small cell carcinoma 22.5%. Survival was longer in the COPD group.
  
  
  CONCLUSIONS
  LC and COPD are combined in 39.8%. Squamous cell type is more frequent and survival was longer in the COPD group.
authors.affiliation: Servicio de Neumología, Complexo Hospitalario Ourense, Ourense, España. jose.abal.arca@sergas.es
authors.forename: José
authors.initials: J
authors.lastname: Abal Arca
authors.forename: Isaura
authors.initials: I
authors.lastname: Parente Lamelas
authors.forename: Raquel
authors.initials: R
authors.lastname: Almazán Ortega
authors.forename: José
authors.initials: J
authors.lastname: Blanco Pérez
authors.forename: María Elena
authors.initials: ME
authors.lastname: Toubes Navarro
authors.forename: Pedro
authors.initials: P
authors.lastname: Marcos Velázquez
mesh_terms: D000230:Adenocarcinoma / Q000453:epidemiology* / Q000628:therapy; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology* / Q000628:therapy; D002318:Cardiovascular Diseases / Q000453:epidemiology; D003131:Combined Modality Therapy; D015897:Comorbidity; D003920:Diabetes Mellitus / Q000453:epidemiology; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008175:Lung Neoplasms / Q000453:epidemiology* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D016609:Neoplasms, Second Primary / Q000453:epidemiology; D010166:Palliative Care; D016016:Proportional Hazards Models; D029424:Pulmonary Disease, Chronic Obstructive / Q000453:epidemiology*; D012189:Retrospective Studies; D055752:Small Cell Lung Carcinoma / Q000453:epidemiology* / Q000628:therapy; D012907:Smoking / Q000453:epidemiology