Satisfaction with medication in coronary disease treatment: psychometrics of the Treatment Satisfaction Questionnaire for Medication

Authors

  • Ana Carolina Sauer Liberato University of Washington
  • Roberta Cunha Matheus Rodrigues Universidade Estadual de Campinas; Faculdade de Enfermagem
  • Thaís Moreira São-João Universidade Estadual de Campinas; Faculdade de Enfermagem
  • Neusa Maria Costa Alexandre Universidade Estadual de Campinas; Faculdade de Enfermagem
  • Maria Cecília Bueno Jayme Gallani Laval University; Faculty of Nursing

DOI:

https://doi.org/10.1590/1518-8345.0745.2705

Abstract

Objective: to psychometrically test the Brazilian version of the Treatment Satisfaction Questionnaire for Medication - TSQM (version 1.4), regarding ceiling and floor effect, practicability, acceptability, reliability and validity. Methods: participants with coronary heart disease (n=190) were recruited from an outpatient cardiology clinic at a university hospital in Southeastern Brazil and interviewed to evaluate their satisfaction with medication using the TSQM (version 1.4) and adherence using the Morisky Self-Reported Measure of Medication Adherence Scale and proportion of adherence. The Ceiling and Floor effect were analyzed considering the 15% worst and best possible TSQM scores; Practicability was assessed by time spent during TSQM interviews; Acceptability by proportion of unanswered items and participants who answered all items; Reliability through the Cronbach's alpha coefficient and Validity through the convergent construct validity between the TSQM and the adherence measures. Results: TSQM was easily applied. Ceiling effect was found in the side effects domain and floor effect in the side effects and global satisfaction domains. Evidence of reliability was close to satisfied in all domains. The convergent construct validity was partially supported. Conclusions: the Brazilian TSQM presents evidence of acceptability and practicability, although its validity was weakly supported and adequate internal consistency was observed for one domain.

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Published

2016-01-01

Issue

Vol. 24 (2016)

Section

Original Articles

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How to Cite

Satisfaction with medication in coronary disease treatment: psychometrics of the Treatment Satisfaction Questionnaire for Medication . (2016). Revista Latino-Americana De Enfermagem, 24, e2705-. https://doi.org/10.1590/1518-8345.0745.2705