Accepted for/Published in: JMIR mHealth and uHealth
Date Submitted: Nov 2, 2020
Open Peer Review Period: Nov 1, 2020 - Dec 27, 2020
Date Accepted: May 1, 2021
Date Submitted to PubMed: May 2, 2021
(closed for review but you can still tweet)
Development of an Android-Based Self-Report Assessment for Elderly Driving Risk (SAFE-DR) Application: A Mixed-Methods Study
ABSTRACT
Background:
Self-report assessments for elderly drivers are used in various countries for accessible, widespread self-monitoring of driving ability in the elderly population. Likewise, in South Korea, the paper-based Self-report Assessment for Elderly Driving Risk (SAFE-DR) has been developed. Here, we implemented the SAFE-DR in an Android application, which has the advantages of accessibility, convenience, and provision of diverse information, and verified its reliability and validity.
Objective:
This study was tested validity and reliability of a mobile version of a self-report assessment application for elderly persons contextualized to the South Korean culture with comparing paper-based test.
Methods:
In this mixed-methods study, we recruited and interviewed 567 elderly drivers (≥65 years) between August 2018 and May 2019. For participants who provided consent, the application-based test was repeated after 2 weeks, and an additional paper-based Driver 65 Plus test was also administered. Using the collected data, we analyzed the reliability and validity of the application-based SAFE-DR. In the reliability analysis, exploratory factor analysis on 40 of the 44 items established five subdomains: On-road (8 items), Coping (16 items), Cognitive Functions (5 items), General Conditions (8 items), and Medical Health (3 items). In the retest after 2 weeks, the mean correlation coefficient across all items was r=0.951, showing a very high reliability.
Results:
A very strong negative correlation of -0.864 was observed between the total score for the application-based SAFE-DR and the paper-based Driver 65 Plus with decorrelation scales. The application-based test was reliable.
Conclusions:
This assessment can be applied to the education and preventive screening of elderly drivers’ license renewal policy in South Korea and can contribute to safe driving among elderly drivers.
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