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Contributions for the validation of the portuguese version of the vascular quallity of Life-6 questionnaire in peripheral artery disease patients

2023-11-21Master thesis Open access
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dc.contributor.advisorSilva, Ivone
dc.contributor.advisorPedras, Susana
dc.contributor.advisorPimenta, Rui
dc.contributor.authorOliveira, Rafaela Monteiro
dc.date.accessioned2024-01-26T10:10:48Z
dc.date.available2024-01-26T10:10:48Z
dc.date.issued2023-11-21
dc.description.abstractPeripheral Arterial Disease (PAD) is an occlusive atherosclerotic disease that affects ˃230 million people worldwide. The most common symptom is intermitente claudication (IC) that leads to lower quality of life (QoL). Thus, this study aimed to contribute to the validation of the VascuQol-6 questionnaire for the portuguese popultion to obtain a quick, sensitive, and easy-to-use way to assess QoL in PAD. The VascuQol-6 was adapted and translated into European Portuguese. 115 patients were included with a mean age of 65 years and with PAD with IC stable for more than 3 months. Reliability, construct validity analysis through convergente and discriminant validity, known-group validity, and respossiveness analysis were tested. The Average Variance Extracted for the latent construct was 0.40 and the Composite Reliability was 0.79, indicating strong internal consistency. VascuQol-6 was positively associated with SF-36 Physical Component Summary and Mental Component Summary scores (r=.64, p˂.01 and r =.42, p˂.01, respectively). In turn, there was no significant correlation between VascuQol-6 scores and the PADKP or IPAQ. A statistically significant difference between groups according to IC severity (F(2,47)=8.35, p˂0.001) was found. A paired samples t-test showed diferences between VascuQol-6 scores before a walking program (M=15.65, SD=3.09), and after a walking program (M=17.41, SD=2.71), t(67)=3.94, p=˂.001. The VascuQol-6 is a 6-item instrument to assess the QoL associated with PAD with good psychometric properties, convergente and discriminant validity with SF-36, PADKQ and IPAQ. The instrument proved to have known group validity and responsiveness.
dc.identifier.tid203472250pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/24709
dc.language.isoengpt_PT
dc.subjectPeripheral artery diseasept_PT
dc.subjectQuality of lifept_PT
dc.subjectValidationpt_PT
dc.subjectReliabilitypt_PT
dc.titleContributions for the validation of the portuguese version of the vascular quallity of Life-6 questionnaire in peripheral artery disease patientspt_PT
dc.typemaster thesis
dspace.entity.typePublication
rcaap.rightsopenAccesspt_PT
rcaap.typemasterThesispt_PT
thesis.degree.nameBioestatística e Bioinformática Aplicadas à Saúdept_PT

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