The 26,316 patients who entered drug therapy programs participating in the DARP from June, 1971, to March, 1973, and who had used drugs for at least two years were grouped into three drug use categories. Differences were observed among these three groups regarding the first drug used daily and the age at first drug use. (Author)

Analyzed the self-reported substance use among selected Native American high school students (N=330). Results indicated 83.6 percent reported having experimented with alcohol, and an additional 43 percent reported using some combination of alcohol and other drugs on a fairly regular basis. Includes recommendations. (Author/RC)

As the adolescent matures, drinking situations occur outside of the home with friends. This period is characterized by drinking habits, patterns, and attitudes which are different from those of the parent population; the peer group and situational factors are significant influences on drinking behavior during this phase. (Author)