title: Is delusional depression related to bipolar disorder?
abstract: In a family study of major depression, the prevalence of bipolar illness was nearly six times as high among the relatives of delusionally depressed probands as among the relatives of nondelusionally depressed probands or of controls.
mesh_terms: D001714:Bipolar Disorder / Q000235:genetics* / Q000523:psychology; D003702:Delusions / Q000235:genetics* / Q000523:psychology; D003866:Depressive Disorder / Q000235:genetics* / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D011569:Psychiatric Status Rating Scales; D012189:Retrospective Studies; D012306:Risk