Background/objective: To examine rates of counseling on driving for individuals with osteoarthritis (OA) and/or rheumatoid arthritis (RA) and evaluate the Health Assessment Questionnaire Disability Index (HAQ-DI) as a screening tool for further driving evaluation.
Methods: A cross-sectional survey was completed by individuals recruited via ResearchMatch (a national web-based recruitment tool) between March 5 and April 20, 2020. Individuals with a current US driver's license, ≥18 years old, with self-reported OA and/or RA diagnosis were surveyed about driving difficulty and vehicle modification and completed a HAQ-DI assessment. Respondents were dichotomized based on reporting vehicle modification(s) due to arthritis versus no modification(s) for univariate and multivariate analyses.
Results: Of 4,435 recruited patients, 304 (6.9%) met inclusion/exclusion criteria and completed the surveys. Of all respondents, 259 (85.2%) reported at least some difficulty with one or more driving activities, but only 47 (15.5%) reported discussion with a physician and/or healthcare professional. A total of 184 (60.5%) respondents had HAQ-DI ≥ 1 and were more likely to report vehicle modification(s) compared to respondents with HAQ-DI score < 1 (OR = 5.00, 95% CI = 2.69-9.32, p < 0.011) after controlling for age, gender, type of arthritis, and driving behaviors.
Conclusion: Few respondents report discussion of driving difficulties with healthcare providers, although many report driving-related impairments, particularly those with HAQ-DI scores ≥ 1. Our data suggest a strong association between HAQ-DI scores and vehicle modification. The HAQ-DI may serve as a screening tool to predict a patient's need for driving evaluation and vehicle modification(s).
Keywords: driving; haq-di; iadl (instrumental activities of daily living); osteoarthritis; physician counseling; rheumatoid arthritis; safety.
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