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Accuracy, validity, and reliability of an electronic visual analog scale for pain on a touch screen tablet in healthy older adults: A clinical trial

Citation

Bird, M-L and Callisaya, ML and Cannell, J and Gibbons, T and Smith, ST and Ahuja, KDK, Accuracy, validity, and reliability of an electronic visual analog scale for pain on a touch screen tablet in healthy older adults: A clinical trial, Interactive Journal of Medical Research, 5, (1) Article e3. ISSN 1929-073X (2016) [Refereed Article]


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Copyright Statement

©Marie-Louise Bird, Michele L Callisaya, John Cannell, Timothy Gibbons, Stuart T Smith, Kiran DK Ahuja. Licensed under Creative Commons Attribution 2.0 Generic (CC BY 2.0) https://creativecommons.org/licenses/by/2.0/

DOI: doi:10.2196/ijmr.4910

Abstract

Background: New technology for clinical data collection is rapidly evolving and may be useful for both researchers and clinicians; however, this new technology has not been tested for accuracy, reliability, or validity.

Objective: This study aims to test the accuracy of visual analog scale (VAS) for pain on a newly designed application on the iPad (iPadVAS) and measure the reliability and validity of iPadVAS compared to a paper copy (paperVAS).

Methods: Accuracy was determined by physically measuring an iPad scale on screen and comparing it to the results from the program, with a researcher collecting 101 data points. A total of 22 healthy community dwelling older adults were then recruited to test reliability and validity. Each participant completed 8 VAS (4 using each tool) in a randomized order. Reliability was measured using interclass correlation coefficient (ICC) and validity measured using Bland-Altman graphs and correlations.

Results: Of the measurements for accuracy, 64 results were identical, 2 results were manually measured as being 1 mm higher than the program, and 35 as 1 mm lower. Reliability for the iPadVAS was excellent with individual ICC 0.90 (95% CI 0.82-0.95) and averaged ICC 0.97 (95% CI 0.95-1.0) observed. Linear regression demonstrated a strong relationship with a small negative bias towards the iPad (-2.6, SD 5.0) with limits of agreement from -12.4 to 7.1.

Conclusions: The iPadVAS provides a convenient, user-friendly, and efficient way of collecting data from participants in measuring their current pain levels. It has potential use in documentation management and may encourage participatory healthcare.

Item Details

Item Type:Refereed Article
Keywords:technology, validation, reliability, community
Research Division:Medical and Health Sciences
Research Group:Human Movement and Sports Science
Research Field:Exercise Physiology
Objective Division:Health
Objective Group:Public Health (excl. Specific Population Health)
Objective Field:Health Status (e.g. Indicators of Well-Being)
Author:Bird, M-L (Dr Marie-Louise Bird)
Author:Callisaya, ML (Dr Michele Callisaya)
Author:Gibbons, T (Mr Tim Gibbons)
Author:Smith, ST (Associate Professor Stuart Smith)
Author:Ahuja, KDK (Dr Kiran Ahuja)
ID Code:106297
Year Published:2016
Web of Science® Times Cited:3
Deposited By:Health Sciences
Deposited On:2016-02-04
Last Modified:2017-11-06
Downloads:25 View Download Statistics

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