de Almeida Correia Marilia, Andrade-Lima Aluísio, Mesquita de Oliveira Paulo Longano, Domiciano Rômulo Martins, Ribeiro Domingues Wagner Jorge, Wolosker Nelson, Puench-Leão Pedro, Ritti-Dias Raphael Mendes, Cucato Gabriel Grizzo
University of Pernambuco, Recife, Pernambuco, Brazil.
University of São Paulo, São Paulo, São Paulo, Brazil.
Ann Vasc Surg. 2018 Aug;51:48-54.e1. doi: 10.1016/j.avsg.2018.02.026. Epub 2018 May 15.
The Vascular Quality of Life Questionnaire (VascuQoL-6) was proposed to evaluate specific quality of life of peripheral artery disease (PAD) patients. However, there is no Brazilian-Portuguese version available, blunting its use in Brazilian patients. The objective of the study was to analyze the psychometric properties of a translated Brazilian-Portuguese version of VascuQoL-6 in Brazilian patients with PAD with intermittent claudication symptoms.
One hundred eleven patients with PAD participated in the study. After translation and retranslation, construct validity was analyzed by identifying correlation between VascuQoL-6 scores, general World Health Organization qualify of life (WHOQOL) score, and subjective and objective functional capacity tests. To determine the reliability, internal consistency and test-retest reliability with at least 7 days interval between 2 questionnaire applications were calculated.
Significant correlations between the VascuQoL-6 score and total WHOQOL score (r = 0.44; P < 0.05) were observed. Moreover, we observed negative correlations between the VascuQoL-6 score and 4-meter usual pace (r = -0.33; P < 0.05) and 4-meter fast pace (r = -0.34; P < 0.05) and positive correlation with onset claudication distance (r = 0.39; P < 0.05) and total walking distance (r = 0.29; P ≤ 0.05). Internal consistency was 0.84, whereas the intraclass coefficient correlation was 0.84, with no differences in VascuQoL-6 scores between the 2 applications days.
The Brazilian-Portuguese version of the VascuQoL-6 presents adequate valid and reliability indicators, allowing its use in patients with PAD with intermittent claudication symptoms.
血管生活质量问卷（VascuQoL-6）旨在评估外周动脉疾病（PAD）患者的特定生活质量。然而，目前尚无巴西葡萄牙语版本，这限制了其在巴西患者中的应用。本研究的目的是分析在有间歇性跛行症状的巴西PAD患者中，VascuQoL-6巴西葡萄牙语翻译版的心理测量特性。
111例PAD患者参与了本研究。经过翻译和回译后，通过确定VascuQoL-6评分、世界卫生组织总体生活质量（WHOQOL）评分以及主观和客观功能能力测试之间的相关性来分析结构效度。为了确定信度，计算了内部一致性以及两次问卷应用之间间隔至少7天的重测信度。
观察到VascuQoL-6评分与WHOQOL总分之间存在显著相关性（r = 0.44；P < 0.05）。此外，我们观察到VascuQoL-6评分与4米常速（r = -0.33；P < 0.05）和4米快步（r = -0.34；P < 0.05）呈负相关，与跛行起始距离（r = 0.39；P < 0.05）和总步行距离（r = 0.29；P≤0.05）呈正相关。内部一致性为0.84，组内相关系数为0.84，两次应用日之间VascuQoL-6评分无差异。
VascuQoL-6巴西葡萄牙语版本具有足够的效度和信度指标，可用于有间歇性跛行症状的PAD患者。
