The role of clinical dietitians as perceived by dietitians and physicians

The purpose of this study was to examine dietitians' and physicians' perceptions regarding the role of clinical dietitians.

Four hundred ten physicians and clinical dietitians were randomly identified from the American Board of Medical Specialties Directory of Board Certified Medical Specialists and from Michigan district dietetic association directories. A survey containing demographic, situational, and role and responsibility questions was administered.

Cronbach's alpha coefficient was computed to determine the internal consistency of the measurement instrument. A series of two-tailed t tests was performed to determine between-group differences on the perception questions. Analysis of covariance was completed to control for potential confounds. chi 2 Tests were performed to determine the relationship among a change of diet order question and participants' occupation, area of specialty, and practice setting.

Of the surveys mailed, 73% were returned and 58% overall were usable. The internal consistency of the measure was .72. Most dietitians' and physicians' responses to the role and responsibility questions differed significantly, with particularly large differences noted for 6 of 10 questions; however, "total score" differences were not significant. Significant associations were found for the level of specialization and type of occupation on the change of diet order question.

Routine contact, communication, and interaction between physicians and dietitians are vital if physicians are to know dietitians' responsibilities and competencies and collaborate with them when providing medical nutrition therapy to patients. Future studies that differentiate areas of responsibility of clinical dietitians and inquire into dietitians' and physicians' interactions during their education or training may provide further insights into this topic.