Evidence map›Paper›PMID 29766209›Full record

ArticlePsychopharmacology2018

Is cannabis a risk factor for suicide attempts in men and women with psychotic illness?

A Waterreus, P Di Prinzio, J C Badcock, M Martin-Iverson, A Jablensky, V A Morgan

Abstract read
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In one paragraph

Article in Psychopharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

A WaterreusNeuropsychiatric Epidemiology Research Unit, Division of Psychiatry, Medical School, University of Western Australia, Level 3 MRF Building, rear 50 Murray St, Perth, WA, 6000, Australia. anna.waterreus@uwa.edu.au.ORCID http://orcid.org/0000-0002-1648-7701
P Di PrinzioNeuropsychiatric Epidemiology Research Unit, Division of Psychiatry, Medical School, University of Western Australia, Level 3 MRF Building, rear 50 Murray St, Perth, WA, 6000, Australia.
J C BadcockCentre for Clinical Research in Neuropsychiatry, Division of Psychiatry, Medical School, University of Western Australia, Perth, Australia.
M Martin-IversonPharmacology, School of Biomedical Sciences, University of Western Australia, Perth, Australia.
A JablenskyCentre for Clinical Research in Neuropsychiatry, Division of Psychiatry, Medical School, University of Western Australia, Perth, Australia.
V A MorganNeuropsychiatric Epidemiology Research Unit, Division of Psychiatry, Medical School, University of Western Australia, Level 3 MRF Building, rear 50 Murray St, Perth, WA, 6000, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate whether recent cannabis use by men and women with psychotic disorders was associated with increased risk of suicide attempt, and to determine associated factors, stratified by sex.

methodsData from 1065 men and 725 women interviewed in the Australian national survey of psychosis were analysed to model separately, for each sex, the impact of daily, casual or no past-year cannabis use and other risk factors including age, on a past-year suicide attempt.

resultsIn the past year, 168 (9.4%) participants attempted suicide. Unadjusted analyses showed daily cannabis users of both sexes had significantly increased odds of attempting suicide compared to non-users. After adjusting for confounding factors, this relationship was no longer significant. Depression had the strongest association with attempting suicide for both sexes. Sex differences in other risk factors were observed. In post hoc analysis, daily cannabis use was associated with higher odds of attempting suicide in older men compared to non-users; this was not found in younger men or women.

conclusionsAssociations between past-year cannabis use and suicide attempts were confounded by other factors (depression, loneliness, homelessness and hallucinations). The possibility of greater risk of suicidal behaviour with regular cannabis use for older men should be considered.

Indexed as

Sex CharacteristicsAdolescentAdultAustraliaFemaleHumansMaleMarijuana UseMiddle AgedPsychotic DisordersRisk FactorsSuicidal IdeationSuicide, AttemptedSurveys and QuestionnairesYoung AdultAgeCannabisPsychotic disordersRisk factorsSexSuicide attempt

Identifiers

PMID29766209

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.