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[Measure of disease impact: instrument construct validity in patients with coronary artery disease]

Rafaela Batista dos Santos Pedrosa1, Roberta Cunha Matheus Rodrigues, Kátia Melissa Padilha

  • 1Departamento de Enfermagem, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, CampinasSP, Brasil, rafaphn@fcm.unicamp.br.

Revista Da Escola De Enfermagem Da U S P
|December 7, 2013
PubMed

Insights

The Instrument to Measure the Impact of Coronary Disease on Patient

Area of Science:

  • Cardiology
  • Health Psychology
  • Psychometrics

Context:

  • Coronary artery disease (CAD) significantly impacts patients' daily lives.
  • Accurate measurement of disease impact is crucial for effective patient management.
  • Existing instruments may require further validation in diverse populations.

Purpose:

  • To assess the known groups construct validity of the Instrument to Measure the Impact of Coronary Disease on Patient's Everyday Life (IDCV).
  • To evaluate the IDCV's ability to discriminate between different levels of disease severity and health-related quality of life (HRQoL).

Summary:

  • The study validated the IDCV in 153 coronary artery disease outpatients using the SF-36 and MacNew questionnaires.
  • Statistical tests (Mann-Whitney, Kruskal-Wallis) confirmed the IDCV's ability to differentiate impact based on signs/symptoms, left ventricular ejection fraction (LVEF), and HRQoL.
  • The IDCV successfully discriminated impact across different HRQoL quartiles.

Impact:

  • Findings support the IDCV's utility in measuring the impact of coronary artery disease on patients' everyday lives.
  • This validation contributes to refining psychometric tools for assessing patient-reported outcomes in cardiology.
  • Improved measurement tools can lead to better-tailored interventions and enhanced patient care in coronary artery disease management.

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