Resumo Resumen R E S E A R C H P A P E R ( O R I G I N A L ) Translation and adaptation of the Phlebitis Scale for the Portuguese populationTradução e adaptação da Phlebitis Scale para a população portuguesa Traducción y adaptación de la Phlebitis Scale para la población portuguesa Luciene Muniz Braga*; Anabela de Sousa Salgueiro-Oliveira**; Maria Adriana Pereira Henriques***; Manuel Alves Rodrigues****; Cláudia Jesus Vidal Rodrigues*****; Sónia Alexandra Graça Pereira******; Pedro Miguel dos Santos Dinis Parreira******* Background: The use of a scale such as the Phlebitis Scale is recommended to assess phlebitis since it allows standardizing the assessment and documenting care effectiveness. Objectives: To translate, adapt, and assess the psychometric properties of the Phlebitis Scale for the Portuguese population. Methodology: Methodological study of translation and assessment of the psychometric properties of the Phlebitis Scale in a nonprobability sample with 110 patients using 526 peripheral venous catheters. An exploratory factor analysis was performed with Varimax rotation in principal components for analyzing the construct validity and internal consistency of the scale using Cronbach's alpha coefficient.Results: A 35.5% of phlebitis incidence was observed. The factor analysis revealed 2 levels of severity, with the first grade explaining 41.5% of variance. Internal consistency was .78 and .90. Conclusion:The Escala Portuguesa de Flebite (Portuguese Phlebitis Scale) showed linguistic equivalence to the original and adequate internal consis tency for assessing phlebitis. However, a new scale structure is proposed to improve the interpretation and identification of the grades of phlebitis.

The present dissertation is testimony that sometimes the choice of a difficult path can be more enriching and that all the effort will be rewarded by the accomplishment of the defined objectives, reason why it is necessary to express the sincere thanks and gratitude inherent in this process. Firstly, I would like to thank my mentors, Professor Vítor Braga and Professor Eliana Costa e Silva, for all the guidance, constructive criticism, dedication and effort, applied in the various moments to accomplish objectives, deadlines and dynamize this dissertation in a more correct and comprehensive way. A special recognition for all the hours spent in search of results, studies and sharing of knowledge, as well as for all the commitment made with me to the realization of it. Next, I would like to thank the Escola Superior de Tecnologia e Gestão, responsible for my training throughout the academic course and the Research Centre, for the availability of tools and opportunity to participate in events that allowed the dissemination of this work. To my parents, thank you for your work over the years, for always believed in me, for the affection and for making available all the resources so that nothing was lacking in me at educational level, and at all other levels, encouraging me every day and putting hope in every conquest or obstacle. To Pedro, I would like to thank you for your fellowship and your patience throughout this academic journey. For the support, love and for being tireless to motivate me, to never give up my goals and to collaborate with me in any situation, keeping the worries away. Also, a special thanks to Vera, who even with the rush of everyday life, made available to support me in the realization of this dissertation. Thanks to all the wonderful people who have been with me during this academic journey, this experience has become even more significant and rewarding on a personal and professional level, and without a doubt it will be on your side that another victory will be celebrated. To all I express my sincere gratitude.

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