Intensity of Psychoactive Substance Use Affects the Occurrence of Prodromal Symptoms of Psychosis.

DUDIT Cut-off Groups Compared with the PQ-B There was a difference between the DUDIT cut-off groups on the PQ-B total score (H = 11.2; p < 0.01; Kruskal–Wallis H test), and in the post-hoc multiple comparisons, there was only a borderline significant difference between the groups: ‘below cut-off’ and ‘drug-related problems’ (z = 2.65; p = 0.048).

also in 1,379 other papers