Notes that despite the frequent claims of the superiority of interdisciplinary teams over more usual care patterns, systematic studies of the effectiveness of geriatric interdisciplinary teams are rare. Illustrates the difficult conceptual and methodological problems encountered by investigators. Suggests future research directions. (Author/ABL)

Characteristics of the target population, services, and potential source of helpers are determining factors in the cost effectiveness of home health services. Welfare of patients in the experimental group was improved, and lower probability of residential care helped keep costs down. (JAC)