Table 1 Eligibility criteria for the Longitudinal Research on Aging Drivers (LongROAD) study

1) 65–79 years of age at the time of enrollment with a valid driver license

Population group of primary interest

2) Driving on average at least once a week

Adequate driving data required for answering the research questions with acceptable external generalizability

3) Residing in the catchment area of the study site for at least 10 months a year

Conducive to collecting complete medical and driving record data during follow-up

4) Having no plans to move outside of the catchment area within the next 5 years

Minimizing attrition/loss to follow-up from migration

5) Having access to motor vehicle of model year 1996 or newer with an accessible OBDII Port

Required for installing the in-vehicle DataLogger

6) Driving one vehicle ≥80% of the time if access to more than one vehicle

Required for capturing an adequate driving natural history for the participant

7) Being fluent in English

Some standardized instruments available only in English

8) Six-Item Screener score ≥ 4

Required for recruiting participants without significant cognitive impairment at baseline

Having significant cognitive impairment or being diagnosed with degenerative medical conditions that may severely affect driving safety (e.g., Alzheimer’s, Huntington’s, and Parkinson’s)

Unable to provide informed consent and/or complete the baseline assessment and annual follow-up

Driving on average less than once a week

Unable to contribute adequate driving data

Residing in the catchment area of the study site less than 10 months a year

Likely to affect data completeness and scheduling for annual follow-up