Elaboration and validation of instrument to assess adherence to hypertension treatment

Detalhes bibliográficos
Autor(a) principal: Rodrigues, Malvina Thaís Pacheco
Data de Publicação: 2014
Outros Autores: Moreira, Thereza Maria Magalhães, Andrade, Dalton Francisco de
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Revista de Saúde Pública
Texto Completo: https://www.revistas.usp.br/rsp/article/view/81146
Resumo: OBJECTIVE To elaborate and validate an instrument of adherence to treatment for systemic arterial hypertension, based on Item Response Theory. METHODS The process of developing this instrument involved theoretical, empirical and analytical procedures. The theoretical procedures included defining the construct of adherence to systemic arterial hypertension treatment, identifying areas involved and preparing the instrument. The instrument underwent semantic and conceptual analysis by experts. The empirical procedure involved the application of the instrument to 1,000 users with systemic arterial hypertension treated at a referral center in Fortaleza, CE, Northeastern Brazil, in 2012.. The analytical phase validated the instrument through psychometric analysis and statistical procedures. The Item Response Theory model used in the analysis was the Samejima Gradual Response model. RESULTS Twelve of the 23 items of the original instrument were calibrated and remained in the final version. Cronbach’s alpha coefficient (α) was 0.81. Items related to the use of medication when presenting symptoms and the use of fat showed good performance as they were more capable of discriminating individuals who adhered to treatment. To ever stop taking the medication and the consumption of white meat showed less power of discrimination. Items related to physical exercise and routinely following the non-pharmacological treatment had most difficulty to respond. The instrument was more suitable for measuring low adherence to hypertension treatment than high. CONCLUSIONS The instrument proved to be an adequate tool to assess adherence to treatment for systemic arterial hypertension since it manages to differentiate individuals with high from those with low adherence. Its use could facilitate the identification and verification of compliance to prescribed therapy, besides allowing the establishment of goals to be achieved.
id USP-23_e79884c50ad984ad5cdfaaa8305a88a2
oai_identifier_str oai:revistas.usp.br:article/81146
network_acronym_str USP-23
network_name_str Revista de Saúde Pública
repository_id_str
spelling Elaboration and validation of instrument to assess adherence to hypertension treatment Elaboração e validação de instrumento avaliador da adesão ao tratamento da hipertensão OBJECTIVE To elaborate and validate an instrument of adherence to treatment for systemic arterial hypertension, based on Item Response Theory. METHODS The process of developing this instrument involved theoretical, empirical and analytical procedures. The theoretical procedures included defining the construct of adherence to systemic arterial hypertension treatment, identifying areas involved and preparing the instrument. The instrument underwent semantic and conceptual analysis by experts. The empirical procedure involved the application of the instrument to 1,000 users with systemic arterial hypertension treated at a referral center in Fortaleza, CE, Northeastern Brazil, in 2012.. The analytical phase validated the instrument through psychometric analysis and statistical procedures. The Item Response Theory model used in the analysis was the Samejima Gradual Response model. RESULTS Twelve of the 23 items of the original instrument were calibrated and remained in the final version. Cronbach’s alpha coefficient (α) was 0.81. Items related to the use of medication when presenting symptoms and the use of fat showed good performance as they were more capable of discriminating individuals who adhered to treatment. To ever stop taking the medication and the consumption of white meat showed less power of discrimination. Items related to physical exercise and routinely following the non-pharmacological treatment had most difficulty to respond. The instrument was more suitable for measuring low adherence to hypertension treatment than high. CONCLUSIONS The instrument proved to be an adequate tool to assess adherence to treatment for systemic arterial hypertension since it manages to differentiate individuals with high from those with low adherence. Its use could facilitate the identification and verification of compliance to prescribed therapy, besides allowing the establishment of goals to be achieved. OBJETIVO Elaborar e validar instrumento de avaliação da adesão ao tratamento da hipertensão arterial sistêmica, com base na teoria da resposta ao item. MÉTODOS O desenvolvimento do instrumento envolveu procedimentos teóricos, empíricos e analíticos. Os procedimentos teóricos compreenderam a definição do constructo adesão ao tratamento da hipertensão arterial sistêmica, identificação dos domínios intervenientes e a elaboração do instrumento, seguida da análise semântica e conceitual por peritos. O procedimento empírico englobou a aplicação do instrumento a 1.000 usuários com hipertensão arterial sistêmica, atendidos em um centro de referência em Fortaleza, CE, em 2012. A etapa analítica validou o instrumento por meio da análise psicométrica e dos procedimentos estatísticos. O modelo da teoria da resposta ao item usado na análise foi o da resposta gradual de Samejima. RESULTADOS Doze dos 23 itens do instrumento inicial foram calibrados e permaneceram na versão final. O coeficiente alfa (α) de Cronbach foi de 0,81. Os itens referentes ao uso da medicação quando apresenta algum sintoma e o uso de gordura apresentaram bom desempenho, pois tiveram melhor poder de discriminar os indivíduos que aderem ao tratamento. Deixar de tomar a medicação alguma vez e o consumo de carnes brancas apresentaram menor poder de discriminação. Itens referentes à realização de exercício físico e ser rotina seguir o tratamento não medicamentoso tiveram maior dificuldade de resposta. O instrumento mostrou-se mais apropriado para medir a baixa adesão ao tratamento da hipertensão arterial sistêmica do que a alta adesão. CONCLUSÕES O instrumento mostrou-se adequado para avaliar a adesão ao tratamento da hipertensão arterial sistêmica, pois consegue diferenciar os indivíduos com alta adesão daqueles com baixa adesão. Sua utilização pode facilitar a identificação e aferição do cumprimento à terapêutica prescrita, além de viabilizar o estabelecimento de metas a serem alcançadas. Universidade de São Paulo. Faculdade de Saúde Pública2014-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://www.revistas.usp.br/rsp/article/view/8114610.1590/S0034-8910.2014048005044Revista de Saúde Pública; Vol. 48 No. 2 (2014); 232-240Revista de Saúde Pública; Vol. 48 Núm. 2 (2014); 232-240Revista de Saúde Pública; v. 48 n. 2 (2014); 232-2401518-87870034-8910reponame:Revista de Saúde Públicainstname:Universidade de São Paulo (USP)instacron:USPporenghttps://www.revistas.usp.br/rsp/article/view/81146/84769https://www.revistas.usp.br/rsp/article/view/81146/84770Copyright (c) 2017 Revista de Saúde Públicainfo:eu-repo/semantics/openAccessRodrigues, Malvina Thaís Pacheco Moreira, Thereza Maria Magalhães Andrade, Dalton Francisco de 2014-06-04T13:35:23Zoai:revistas.usp.br:article/81146Revistahttps://www.revistas.usp.br/rsp/indexONGhttps://www.revistas.usp.br/rsp/oairevsp@org.usp.br||revsp1@usp.br1518-87870034-8910opendoar:2014-06-04T13:35:23Revista de Saúde Pública - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Elaboration and validation of instrument to assess adherence to hypertension treatment
Elaboração e validação de instrumento avaliador da adesão ao tratamento da hipertensão
title Elaboration and validation of instrument to assess adherence to hypertension treatment
spellingShingle Elaboration and validation of instrument to assess adherence to hypertension treatment
Rodrigues, Malvina Thaís Pacheco
title_short Elaboration and validation of instrument to assess adherence to hypertension treatment
title_full Elaboration and validation of instrument to assess adherence to hypertension treatment
title_fullStr Elaboration and validation of instrument to assess adherence to hypertension treatment
title_full_unstemmed Elaboration and validation of instrument to assess adherence to hypertension treatment
title_sort Elaboration and validation of instrument to assess adherence to hypertension treatment
author Rodrigues, Malvina Thaís Pacheco
author_facet Rodrigues, Malvina Thaís Pacheco
Moreira, Thereza Maria Magalhães
Andrade, Dalton Francisco de
author_role author
author2 Moreira, Thereza Maria Magalhães
Andrade, Dalton Francisco de
author2_role author
author
dc.contributor.author.fl_str_mv Rodrigues, Malvina Thaís Pacheco
Moreira, Thereza Maria Magalhães
Andrade, Dalton Francisco de
description OBJECTIVE To elaborate and validate an instrument of adherence to treatment for systemic arterial hypertension, based on Item Response Theory. METHODS The process of developing this instrument involved theoretical, empirical and analytical procedures. The theoretical procedures included defining the construct of adherence to systemic arterial hypertension treatment, identifying areas involved and preparing the instrument. The instrument underwent semantic and conceptual analysis by experts. The empirical procedure involved the application of the instrument to 1,000 users with systemic arterial hypertension treated at a referral center in Fortaleza, CE, Northeastern Brazil, in 2012.. The analytical phase validated the instrument through psychometric analysis and statistical procedures. The Item Response Theory model used in the analysis was the Samejima Gradual Response model. RESULTS Twelve of the 23 items of the original instrument were calibrated and remained in the final version. Cronbach’s alpha coefficient (α) was 0.81. Items related to the use of medication when presenting symptoms and the use of fat showed good performance as they were more capable of discriminating individuals who adhered to treatment. To ever stop taking the medication and the consumption of white meat showed less power of discrimination. Items related to physical exercise and routinely following the non-pharmacological treatment had most difficulty to respond. The instrument was more suitable for measuring low adherence to hypertension treatment than high. CONCLUSIONS The instrument proved to be an adequate tool to assess adherence to treatment for systemic arterial hypertension since it manages to differentiate individuals with high from those with low adherence. Its use could facilitate the identification and verification of compliance to prescribed therapy, besides allowing the establishment of goals to be achieved.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/rsp/article/view/81146
10.1590/S0034-8910.2014048005044
url https://www.revistas.usp.br/rsp/article/view/81146
identifier_str_mv 10.1590/S0034-8910.2014048005044
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/rsp/article/view/81146/84769
https://www.revistas.usp.br/rsp/article/view/81146/84770
dc.rights.driver.fl_str_mv Copyright (c) 2017 Revista de Saúde Pública
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2017 Revista de Saúde Pública
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Saúde Pública
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Saúde Pública
dc.source.none.fl_str_mv Revista de Saúde Pública; Vol. 48 No. 2 (2014); 232-240
Revista de Saúde Pública; Vol. 48 Núm. 2 (2014); 232-240
Revista de Saúde Pública; v. 48 n. 2 (2014); 232-240
1518-8787
0034-8910
reponame:Revista de Saúde Pública
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Revista de Saúde Pública
collection Revista de Saúde Pública
repository.name.fl_str_mv Revista de Saúde Pública - Universidade de São Paulo (USP)
repository.mail.fl_str_mv revsp@org.usp.br||revsp1@usp.br
_version_ 1800221795719053312