The stability of borderline personality disorder in adolescents is qui
te uncertain. To determine the persistence of the border Line personal
ity disorder (BPD) and of separate borderline symptoms in adolescents,
a follow-up study was conducted of hospitalized adolescents with (n =
14) and without (n = 22) BPD, according to the diagnostic interview f
or borderline patients (DIB). Of the 14 borderline adolescents, only t
wo cases were again classified as BPD after 3 years, but some of the s
eparate borderline symptoms were still present. In the nonborderline g
roup, no new borderline cases were found after 3 years.