title: Reliability and construct validity of the Instrument to Measure the Impact of Valve Heart Disease on the Patient's Daily Life.
abstract: evaluate the practicality, acceptability and the floor and ceiling effects, estimate the reliability and verify the convergent construct's validity with the instrument called the Heart Valve Disease Impact on daily life (IDCV) of the valve disease in patients with mitral and or aortic heart valve disease.
  
  
  
  data was obtained from 86 heart valve disease patients through 3 phases: a face to face interview for a socio-demographic and clinic characterization and then other two done through phone calls of the interviewed patients for application of the instrument (test and repeat test).
  
  
  
  as for the practicality and acceptability, the instrument was applied with an average time of 9,9 minutes and with 110% of responses, respectively. Ceiling and floor effects observed for all domains, especially floor effect. Reliability was tested using the test - repeating pattern to give evidence of temporal stability of the measurement. Significant negative correlations with moderate to strong magnitude were found between the score of the generic question about the impact of the disease and the scores of IDCV, which points to the validity of the instrument convergent construct.
  
  
  
  the instrument to measure the impact of valve heart disease on the patient's daily life showed evidence of reliability and validity when applied to patients with heart valve disease.
authors.affiliation: Master's student, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil.
authors.forename: Daniela Brianne Martins Dos
authors.initials: DB
authors.lastname: Anjos
authors.affiliation: PhD, Full Professor, Faculdade de Enfermagem, Universidade Estadual de Campinas, Campinas, SP, Brazil.
authors.forename: Roberta Cunha Matheus
authors.initials: RC
authors.lastname: Rodrigues
authors.affiliation: PhD, Associate Professor, Faculdade de Enfermagem, Universidade Estadual de Campinas, Campinas, SP, Brazil.
authors.forename: Kátia Melissa
authors.initials: KM
authors.lastname: Padilha
authors.affiliation: Doctoral student, Faculdade de Enfermagem, Universidade Estadual de Campinas, Campinas, SP, Brazil.
authors.forename: Rafaela Batista Dos Santos
authors.initials: RB
authors.lastname: Pedrosa
authors.affiliation: PhD, Full Titular, Faculté des sciences infirmières, Université Laval, Québec, QC, Canada.
authors.forename: Maria Cecília Bueno Jayme
authors.initials: MC
authors.lastname: Gallani
mesh_terms: D000203:Activities of Daily Living; D005260:Female; D006349:Heart Valve Diseases / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D018434:Sickness Impact Profile