In this sample, 64% of individuals with BD reported affective psychosis (during mania, depression or both). Of those with psychosis, 79.2% had experienced psychotic features during 2 or more episodes of depression or mania. The association between cannabis use disorders and BD was not attributable to psychosis nor to chronicity. Presence of psychosis was also not associated with lifetime cannabis use or with using cannabis for the first time prior to age 14 (early use).
