Abstract
Homeless human adolescents (100) were interviewed in 1971 when they were still active drug abusers. The same group was followed-up 3 yr later with personal interviews. At follow-up 1/3 were abstinent and were well adapted socially, 1/3 showed an uncertain social adaptation and 1/3 were still addicted and had a poor social adaptation. The various factors responsible for their psycho-social development and relation to drug abuse were discussed.