title: [Usefulness of the Chronic Obstructive Pulmonary Disease Assessment Test in chronic obstructive pulmonary disease with severe airflow limitation].
abstract: OBJECTIVE
  To evaluate the relationship between Chronic Obstructive Pulmonary Disease Assessment Test (CAT questionnaire) and chronic obstructive pulmonary disease (COPD) severity assessed by the multidimensional BODE index in patients with severe airflow obstruction (forced expiratory volume in one second [FEV1] post-bronchodilator<50%) in a stable state.
  
  
  METHODS
  Prospective observational study (2012). We classified the severity of COPD according to the BODE index in 3 subgroups: mild to moderate COPD (BODE<5 points), severe COPD (BODE 5-6 points) and very severe COPD (BODE ≥ 7 points).
  
  
  RESULTS
  We included 97 patients with a mean age of 67 (8) years, 96% were men. The mean FEV1 was 34.3% (9.8%) and mean BODE index was 4.8 (1.4). The mean CAT score was 20 (7.7). We found no significant differences in CAT score (total or by items) between the 3 groups of BODE assessed.
  
  
  CONCLUSIONS
  In patients with COPD and severe airflow obstruction, the CAT score reflects a moderate to severe impact of illness and does not allow to predict COPD severity assessed by the BODE index.
authors.affiliation: Servicio de Neumología, UDIAT Centro Diagnóstico, Hospital de Sabadell, Institut Universitari Parc Taulí, Universitat Autònoma de Barcelona, Sabadell, Barcelona, España.
authors.forename: Guadalupe
authors.initials: G
authors.lastname: Bermudo
authors.affiliation: Servicio de Neumología, UDIAT Centro Diagnóstico, Hospital de Sabadell, Institut Universitari Parc Taulí, Universitat Autònoma de Barcelona, Sabadell, Barcelona, España. Electronic address: jpomares@tauli.cat.
authors.forename: Xavier
authors.initials: X
authors.lastname: Pomares
authors.affiliation: Servicio de Neumología, UDIAT Centro Diagnóstico, Hospital de Sabadell, Institut Universitari Parc Taulí, Universitat Autònoma de Barcelona, Sabadell, Barcelona, España.
authors.forename: Concepción
authors.initials: C
authors.lastname: Montón
authors.affiliation: Servicio de Epidemiología Clínica-Cribado de Cáncer, UDIAT Centro Diagnóstico, Hospital de Sabadell, Institut Universitari Parc Taulí, Universitat Autònoma de Barcelona, Sabadell, Barcelona, España.
authors.forename: Marisa
authors.initials: M
authors.lastname: Baré
authors.affiliation: Servicio de Neumología, UDIAT Centro Diagnóstico, Hospital de Sabadell, Institut Universitari Parc Taulí, Universitat Autònoma de Barcelona, Sabadell, Barcelona, España.
authors.forename: Eduard
authors.initials: E
authors.lastname: Monsó
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis* / Q000503:physiopathology; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires
keywords: BODE index; Chronic Obstructive Pulmonary Disease Assessment Test; Chronic obstructive pulmonary disease; Enfermedad pulmonar obstructiva crónica; Índice BODE