Study finds, Vehicle Control as a Measure of Real-World Driv
A Study was conducted to quantify vehicle control as a metric of automobile driving performance in patients with rheumatoid arthritis (RA).

Naturalistic driving assessments were completed in patients with active RA and controls without disease. Data were collected using in-car, sensor-based instrumentation installed in the participants own vehicles to observe typical driving habits. RA disease status, disease activity, and functional status were associated with vehicle contro using mixed-effect linear regression models stratified by road type.

Results:
--Across 1,292 driving hours, RA drivers (n=33) demonstrated differences in vehicle control compared to controls (n=23) with evidence of significant statistical interaction between disease status and road type.

--On residential roads, participants with RA demonstrated overall lower braking/accelerating variability than controls and, when disease activity was low, lower steering variability.

--On interstates/highways, RA was associated with increased steering variability among those with moderate/high CDAI scores.

--In models limited to RA, increases in disease activity and physical disability over 12-weeks of observation were associated with a significant increase in braking/accelerating variability on interstate/highways.

Researchers found a connection between RA and deteriorating RA disease severity and aberrant vehicle control using unique naturalistic evaluations. These findings highlights the need for more study to link observed patterns in vehicle control to measurements of driver risk, and, in turn, to link patterns of real-world driving behavior to disease diagnosis and activity.

Source: https://onlinelibrary.wiley.com/doi/10.1002/acr.24769?af=R
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