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

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          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          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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          Concurrent and predictive validity of a self-reported measure of medication adherence.

          D E Morisky, L Green, D Levine (1986)
          Adherence to the medical regimen continues to rank as a major clinical problem in the management of patients with essential hypertension, as in other conditions treated with drugs and life-style modification. This article reviews the psychometric properties and tests the concurrent and predictive validity of a structured four-item self-reported adherence measure (alpha reliability = 0.61), which can be easily integrated into the medical visit. Items in the scale address barriers to medication-taking and permit the health care provider to reinforce positive adherence behaviors. Data on patient adherence to the medical regimen were collected at the end of a formalized 18-month educational program. Blood pressure measurements were recorded throughout a 3-year follow-up period. Results showed the scale to demonstrate both concurrent and predictive validity with regard to blood pressure control at 2 years and 5 years, respectively. Seventy-five percent of the patients who scored high on the four-item scale at year 2 had their blood pressure under adequate control at year 5, compared with 47% under control at year 5 for those patients scoring low (P less than 0.01).
          Article 0 comments Cited 810 times – based on 0 reviews     Review now
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            The patient experience and health outcomes.

            Matthew Manary, William Boulding, Richard Staelin … (2013)
            Article 0 comments Cited 247 times – based on 0 reviews     Review now
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              Hierarchical construct validity of the treatment satisfaction questionnaire for medication (TSQM version II) among outpatient pharmacy consumers.

              Mark J Atkinson, Ritesh Kumar, Joseph C Cappelleri … (2015)
              The objectives of this study were twofold: 1) to evaluate the construct validity of the Treatment Satisfaction Questionnaire for Medication (TSQM v. II) using structural equation modeling (SEM); and 2) to assess its concurrent validity using medication adherence criteria. Pharmacy patients filling a new medication prescription (n = 342) were recruited from 14 Michigan pharmacies to participate in a 4-week treatment satisfaction study. The TSQM v. II was tested for model fit against an established theoretical model (the Decisional Balance Model of Treatment Satisfaction) using hierarchical confirmatory factor analysis (HCFA). Regression and discriminant analytic models were used to examine the criterion-related validity of the measure. An exploratory factor analysis, used for TSQM v. II item reduction, revealed a strongly dimensional instrument (Effectiveness, Side Effects, and Convenience) and explained 88% of total pooled variance. Results of an HCFA using the final TSQM v. II items suggested a good model fit with the data (P > 0.54). In support of concurrent validity, the TSQM scales explained between 9% and 20% of the variance in dosing adherence and 60% of the variance in the likelihood of future use. Discriminant analysis demonstrated the superior classification power of the hierarchical model of treatment satisfaction over the discrete attribute model when predicting medication discontinuation. The TSQM v. II has equivalent measurement characteristics as the TSQM v. I, yet uses four fewer items and more consistent wording. The value of the Decisional Balance Model for estimation of dosing adherence and medication persistence over time is discussed.
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                Author and article information

                Journal
                Journal ID (nlm-ta): Rev Lat Am Enfermagem
                Journal ID (iso-abbrev): Rev Lat Am Enfermagem
                Journal ID (publisher-id): rlae
                Title: Revista Latino-Americana de Enfermagem
                Publisher: Escola de Enfermagem de Ribeirão Preto / Universidade de São Paulo
                ISSN (Print): 0104-1169
                ISSN (Electronic): 1518-8345
                Publication date (Electronic): 07 June 2016
                Publication date Collection: 2016
                Volume: 24
                Electronic Location Identifier: e2705
                Affiliations
                [1 ]Doctoral student, University of Washington, Seattle, USA.
                [2 ]Associate Professor, Faculdade de Enfermagem, Universidade Estadual de Campinas, Campinas, SP, Brazil.
                [3 ]Professor, Faculdade de Enfermagem, Universidade Estadual de Campinas, Campinas, SP, Brazil.
                [4 ]Full Professor, Faculty of Nursing, Laval University, Quebec, Canada.
                Author notes
                Corresponding Author: Ana Carolina Sauer Liberato Rua Armando Fabri, 184 Jardim Guarujá CEP: 18050-609, Sorocaba, SP, Brazil E-mail: liberatoacs@ 123456gmail.com
                Article
                Other ID: 00334
                DOI: 10.1590/1518-8345.0745.2705
                PMC ID: 4915802
                PubMed ID: 27276018
                SO-VID: 4feac3cc-478a-40bd-891a-51c6dcc042cc
                License:

                This is an open-access article distributed under the terms of the Creative Commons Attribution License

                History
                Date received : 25 February 2015
                Date accepted : 18 August 2015
                Page count
                Figures: 0, Tables: 12, Equations: 0, References: 26, Pages: 1
                Categories
                Subject: Original Articles

                Keywords: nursing,patient satisfaction,medication adherence,coronary disease,psychometrics
                Data availability:
                Keywords: nursing, patient satisfaction, medication adherence, coronary disease, psychometrics

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