Ana Carolina Sauer Liberato1, Thais M São João2, Fernanda Freire Jannuzzi3, Erik J Landaas4, Kwankaew Wongchareon5, Roberta C M Rodrigues2. 1. School of Nursing, University of Washington, Seattle, WA, USA. Electronic address: liberatoacs@gmail.com. 2. School of Nursing, University of Campinas, Campinas, SP, Brazil. 3. School of Nursing, Campinas Technical College, Campinas, SP, Brazil. 4. School of Pharmacy, University of Washington, Seattle, WA, USA. 5. Naresuan University, Phitsanulok, Thailand.
Abstract
OBJECTIVES: Evaluate the acceptability, ceiling and floor effects, reliability, and known-group validity of the Brazilian version of the Treatment Satisfaction Questionnaire for Medication (TSQM) version 1.4 in patients with hypertension. METHODS: The sample consisted of 300 hypertensive patients undergoing treatment in an outpatient department. The acceptability was evaluated from the items not answered in the TSQM. The reliability of the TSQM was estimated through Cronbach's alpha. Known-group validity tested whether the TSQM discriminates satisfaction between different stages of hypertension, diagnoses of left ventricular hypertrophy, medication adherence, and occurrence of side effects. RESULTS: The TSQM had high acceptability (99% of participants answered all items). A substantial ceiling effect was found in the side effect (89%) and global satisfaction (29%) subscales. Reliability evaluated with Cronbach's alpha showed values >0.76 in all subscales. Known-group validity was supported with a statistically significant difference in patient satisfaction effectiveness between the hypertension groups and those without left ventricular hypertrophy. Regarding medication adherence, the TSQM was able to discriminate satisfaction in the side effect and global satisfaction subscales. A significantly higher satisfaction was found in all subscales of the TSQM in those patients without side effects. CONCLUSIONS: The TSQM is a reliable and valid questionnaire to be used in Brazilians with hypertension.
OBJECTIVES: Evaluate the acceptability, ceiling and floor effects, reliability, and known-group validity of the Brazilian version of the Treatment Satisfaction Questionnaire for Medication (TSQM) version 1.4 in patients with hypertension. METHODS: The sample consisted of 300 hypertensivepatients undergoing treatment in an outpatient department. The acceptability was evaluated from the items not answered in the TSQM. The reliability of the TSQM was estimated through Cronbach's alpha. Known-group validity tested whether the TSQM discriminates satisfaction between different stages of hypertension, diagnoses of left ventricular hypertrophy, medication adherence, and occurrence of side effects. RESULTS: The TSQM had high acceptability (99% of participants answered all items). A substantial ceiling effect was found in the side effect (89%) and global satisfaction (29%) subscales. Reliability evaluated with Cronbach's alpha showed values >0.76 in all subscales. Known-group validity was supported with a statistically significant difference in patient satisfaction effectiveness between the hypertension groups and those without left ventricular hypertrophy. Regarding medication adherence, the TSQM was able to discriminate satisfaction in the side effect and global satisfaction subscales. A significantly higher satisfaction was found in all subscales of the TSQM in those patients without side effects. CONCLUSIONS: The TSQM is a reliable and valid questionnaire to be used in Brazilians with hypertension.
Authors: Natalia Świątoniowska-Lonc; Aleksandra Kołtuniuk; Beata Jankowska-Polańska Journal: Int J Environ Res Public Health Date: 2022-01-19 Impact factor: 3.390