Evaluating the evidence for nutrition interventions: two algorithms.

Abstract

Community and clinical dietitians are increasingly involved in choosing interventions to alleviate problems and in evaluating programs for their effectiveness. Two decision trees have been developed to assist program planners in this process. The first addresses whether or not a pilot project should be recommended. It deals with determining whether a sufficient problem exists to warrant an intervention, and whether an appropriate intervention that will make a difference can be provided. The second algorithm is directed at the question of whether an existing program should be continued or expanded. It is concerned not only with the outcome of the program but also with its cost-effectiveness.