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Electronic personal assessment questionnaire for vascular conditions (ePAQ-VAS): development and validity.
A Aber1, P Phillips1, J Hughes1
1School of Health and Related Research, University of Sheffield, Sheffield, UK.
The British Journal of Surgery
|April 7, 2020
Summary
The electronic personal assessment questionnaire for vascular conditions (ePAQ-VAS) was developed and validated. This tool effectively captures patient data, enhancing vascular service evaluation and patient-focused care.
Area of Science:
- Vascular Medicine
- Health Informatics
- Patient-Reported Outcomes
Background:
- Development of the electronic personal assessment questionnaire for vascular conditions (ePAQ-VAS).
- The ePAQ-VAS aims to capture symptomatology, quality of life, and clinically relevant data for vascular patients.
Purpose of the Study:
- To validate the ePAQ-VAS for use in vascular services.
- To assess the questionnaire's reliability, validity, and responsiveness.
Main Methods:
- A two-stage survey involving 721 patients attending a tertiary vascular department.
- Confirmatory factor analysis for construct validity and item reduction.
- Assessment of internal reliability, known-group validity, test-retest reliability, and responsiveness.
Main Results:
- Confirmatory factor analysis confirmed the ePAQ-VAS structure, leading to the removal of six items.
- Acceptable internal reliability (Cronbach's α > 0.7) and strong test-retest reliability (ICC 0.65–0.99).
- The instrument demonstrated responsiveness over time (standardized response mean 0.69–1.60).
Conclusions:
- ePAQ-VAS is a validated, holistic data-collection tool for vascular patients.
- The questionnaire supports patient-focused care and aggregate data collection for service evaluation.
- A demonstration version is available online for review.
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