Validation of a Brazilian Portuguese Version of the Walking
Estimated-Limitation Calculated by History (WELCH) |
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Authors: | Gabriel Grizzo Cucato Marilia de Almeida Correia Breno Quintella Farah Glauco Fernandes Saes Aluísio Henrique de Andrade Lima Raphael Mendes Ritti-Dias Nelson Wolosker |
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Institution: | 1.Hospital Israelita Albert Einstein, São Paulo, SP - Brazil;2.Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP - Brazil;3.Escola Superior de Educação Física - Universidade de Pernambuco, Recife, PE - Brazil;4.Escola de Educação Física e Esporte da Universidade de São Paulo, São Paulo, SP - Brazil |
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Abstract: | BackgroundThe Walking Estimated-Limitation Calculated by History (WELCH) questionnaire has
been proposed to evaluate walking impairment in patients with intermittent
claudication (IC), presenting satisfactory psychometric properties. However, a
Brazilian Portuguese version of the questionnaire is unavailable, limiting its
application in Brazilian patients.ObjectiveTo analyze the psychometric properties of a translated Brazilian Portuguese
version of the WELCH in Brazilian patients with IC.MethodsEighty-four patients with IC participated in the study. After translation and
back-translation, carried out by two independent translators, the concurrent
validity of the WELCH was analyzed by correlating the questionnaire scores with
the walking capacity assessed with the Gardner treadmill test. To determine the
reliability of the WELCH, internal consistency and test-retest reliability with a
seven-day interval between the two questionnaire applications were calculated.ResultsThere were significant correlations between the WELCH score and the claudication
onset distance (r = 0.64, p = 0.01) and total walking distance (r = 0.61, p =
0.01). The internal consistency was 0.84 and the intraclass correlation
coefficient between questionnaire evaluations was 0.84. There were no differences
in WELCH scores between the two questionnaire applications.ConclusionThe Brazilian Portuguese version of the WELCH presents adequate validity and
reliability indicators, which support its application to Brazilian patients with
IC. |
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Keywords: | Questionnaires Gait Walking Intermittent Claudication Predictive Value of Tests Disability Evaluation Brazil |
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