How does a family history of psychosis influence the risk of methamphetamine-related psychotic symptoms: Evidence from longitudinal panel data.

ABSTRACT:

Aims

To determine whether the risk of psychotic symptoms during weeks of methamphetamine use was dependent on, increased by, or independent of having a family history of psychosis.

Design

Secondary analysis of 13 contiguous 1-week periods of data (1370 weeks). A risk modification framework was used to test each scenario.

Setting

Geelong, Wollongong and Melbourne, Australia.

Participants

Participants in a randomized controlled trial of treatment for methamphetamine dependence (n = 148) who did not have a primary psychotic disorder on enrolment.

Measurements

Psychotic symptoms in the previous week were defined as a score of 3+ on any of the Brief Psychiatric Rating Scale items of hallucinations, unusual thought content or suspiciousness. Any (vs no) metham

SUBMITTER: McKetin R 

PROVIDER: S-EPMC10952942 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature