Schizophrenic patients in treatment with the Hawaii state system have been followed from 1962 to 1972. This cohort includes 1,689 persons: out-patients as well as in-patients; of Japanese, Caucasian, part-Hawaiian, Filipino, Chinese and other ancestries. After ten years, 60 per cent remain registered with the Hawaii Mental Health Division; 14 per cent are found living in the state; 12 per cent are lost to follow-up; and 14 per cent have died. Mortality is analysed for all causes by comparison with similar ethnic and sex sub-groups of the general population.

Three drug programs in one community are described by the demographic characteristics of persons enrolled. Important differences are found, for example relatively young and unemployed residents in the therapeutic community, and older, more often jailed members of the methadone program. These differences are attributable both to policy of the program and preference of the addicts themselves. Both methadone program and therapeutic community were successful in releasing persons who remained abstinent from drugs for a time, and when program costs were taken into account, a substantial monetary benefit to the community remained.