Samenvatting
Twelve years of Michigan accident data, 1968-1979, were analyzed to assess the impact of lowering the minimum legal drinking age from 21 to 18 in 1972 and subsequently raising it back to age 21 in 1978. Driver age and the presence or absence in drinking in the accident were the key variables. The results show clearly that the minimum legal drinking age influences drinking-driving patterns among the affected age. groups.