OBJECTIVES: To understand why older drivers living in a community setting s
top driving.
DESIGN: A cross-sectional study within a longitudinal cohort.
SETTING: A geographically defined community in southern California.
PARTICIPANTS: 1,950 respondents age 55 and older who reported ever being li
censed drivers.
MEASUREMENTS: A mailed survey instrument of self-reported driving habits li
nked to prior demographic, health, and medical information.
RESULTS: Of the 1,950 eligible respondents, 141 had stopped driving within
the previous 5 years. Among those who stopped, mean age was 85.5 years, 65.
2% were female, and the majority reported they were in very good (43.4%) or
good (34.0%) health. Nearly two-thirds reported driving less than 50 miles
per week prior to stopping and 12.1% reported a motor vehicle crash during
the previous 5 years. The most common reasons reported for stopping were m
edical (41.0%) and age-related (19.4%). In bivariate analyses, age and mile
s driven per week were each associated with cessation (P less than or equal
to .001). Medical conditions, crashes in the previous 5 years, and gender
did not reach statistical significance at the P less than or equal to .05 l
evel. Logistic regression results found that the number of medical conditio
ns was inversely associated with driving cessation.
CONCLUSION: The relationship between medical conditions and driving is comp
lex; while medical conditions were the most common reason given for driving
cessation, those who stopped had fewer medical conditions than current dri
vers. This suggests that a broader measure of general health or functional
ability may play a dominant role in decisions to stop driving.