Citation

Classen S, Medhizadah S, Romero S, Lee MJ. Front. Public Health 2018; 6: e339.

Affiliation

Center of Innovation on Disability & Rehabilitation Research, United States Department of Veterans Affairs, Gainesville, FL, United States.

Copyright

(Copyright © 2018, Frontiers Editorial Office)

DOI

10.3389/fpubh.2018.00339

PMID

30574475

PMCID

PMC6292147

Abstract

Introduction: The Fitness-to-Drive Screening Measure is a free online screening tool that detects at-risk older drivers, however, it's 20 min administration time may render the 54-item tool less than optimal for clinical use. Thus, this study constructed and validated a 21-item FTDS Short-Form (FTDS-SF). Method: This mixed methods study used 200 proxy rater responses and older driver on-road assessments. We conducted a Rasch analysis to examine information at the level of the item and used content validity index scores to select items. Using a receiver operator characteristics curve we determined the concurrent validity of the FTDS-SF to on-road outcomes. Results: Twenty-one items were selected for the FTDS-SF. The area under the curve = 0.72, indicated the FTDS-SF predicted on-road outcomes with acceptable accuracy. Still, 68 drivers were misclassified. Conclusion: The FTDS-SF may reduce administration time, while still yielding acceptable psychometric properties. Yet, caution needs to be executed in clinical decision making as the measure is overly specific.

Language: en

Keywords

aging; automobile driving; decision support system; fitness to drive; proxy raters