The aim of this study was to investigate whether euthymic patients in
remission on lithium prophylaxis score higher on the Dysfunctional Att
itude Scale (DAS) than healthy subjects, thus indicating a trait quali
ty of dysfunctional attitudes in unipolar depression. A total of 79 pa
tients with recurrent unipolar depressive episodes and 79 individually
matched healthy controls were compared using a Swedish version of the
DAS. The results indicate that DAS score is a state-dependent variabl
e in depressive disorder.