This study examines the impact of early adolescent drug use on subsequ
ent dropping out of high school in a sample of 4,390 adolescents from
California and Oregon. Participants were initially surveyed in 7th gra
de in 1985 and again in 1990 when they should have completed 12th grad
e. Logistic regression analyses show that frequency of cigarette use d
uring 7th grade predicts dropping out of high school, controlling for
demographics, family structure, academic orientation, early deviance,
and school environment. Separate analyses by race/ethnicity replicate
this finding for Asians, Blacks, and whites, but not for Latinos. For
Latinos, early marijuana use predicts dropping out. The results sugges
t that preventing or reducing the incidence of early smoking and marij
uana use may help reduce the probability of dropping out of high schoo
l.