A comparison of demographic, behavioral, and ego function data in borderline and eating disorder patients.

Seven borderline personality and ten eating disorder patients were compared using demographic, descriptive/behavioral, and ego function measures on admission to an inpatient unit. Demographic and descriptive data analysis revealed areas of overlap, consistent with other reports of co-morbidity between the two groups. Ratings of intrapsychic function were made using Bellak's Ego Function Assessment profiles, and showed that the two groups shared deficits in the areas of impulse/affect control and sense of identity, but had otherwise easily distinguishable profiles. The authors feel that studying ego functioning is a useful way of assessing co-morbidity in borderline personality and eating disorder patients.