Sociodemographic, behavioral, and cognitive predictors of alcohol-impaired driving in a sample of U.S. college students.

Alcohol-impaired driving continues to be a major public health concern, particularly among college students. The current study examined whether sociodemographic, behavioral, and cognitive variables predicted alcohol-impaired driving in a sample of college students. Data were collected via telephone interviews from a random sample of undergraduates, ages 18-25 years old, stratified by sex and class in school. Using hierarchical logistic regression analyses (n = 330), results revealed that higher levels of weekly alcohol use, being age 21 or older, and perceived difficulty in obtaining alternative transportation were associated with a greater likelihood of drinking and driving. In addition, perceived likelihood of drinking and driving-related consequences was associated with a lower likelihood of drinking and driving. Knowledge of the .08% per se and zero tolerance laws did not predict alcohol-impaired driving. Findings are discussed in terms of their implications for college media campaigns designed to reduce alcohol-impaired driving.