❓ Dr. Brian Walker questions the Minister for Mental Health regarding the number of cannabis psychosis cases in WA since March 2021, referencing British research on THC potency and psychosis risk. The Minister provides data on public hospital inpatient admissions related to cannabinoid use, stratified by age group.
AnsweredQoN 535Legislative Council
QuestionView source ↗
CANNABIS PSYCHOSIS — CASES
535. Hon Dr BRIAN WALKER to the Leader of the House representing the
Minister for Mental Health:
I refer the minister to recent
British research published in the journal Addictive Behaviours that
failed to identify any association between plant tetrahydrocannabinol—THC—potency
and an elevated risk of psychosis.
(1) How many
cases of cannabis psychosis have been reported here in Western Australia since
March 2021?
(2) Is the minister able to stratify
those numbers by age group?
535. Hon Dr BRIAN WALKER to the Leader of the House representing the
Minister for Mental Health:
I refer the minister to recent
British research published in the journal Addictive Behaviours that
failed to identify any association between plant tetrahydrocannabinol—THC—potency
and an elevated risk of psychosis.
(1) How many
cases of cannabis psychosis have been reported here in Western Australia since
March 2021?
(2) Is the minister able to stratify
those numbers by age group?
AnswerView source ↗
I thank the
honourable member for some notice of the question.
(1) There were 1 085
Western Australian public hospital inpatient admissions coded with a mental and
behavioural disorder due to use of cannabinoids between March 2021 and January
2023.
(2) Age group
stratification for these 1 085 cases is as follows—and that information
is set out in a table, so I seek leave to have the table incorporated into Hansard .
[Leave granted for the following
material to be incorporated.]
Age
In-patient
Admission
10-19
years
179
20-29
years
456
30-39
years
273
40-49
years
123
50-59
years
46
60+
years
8
honourable member for some notice of the question.
(1) There were 1 085
Western Australian public hospital inpatient admissions coded with a mental and
behavioural disorder due to use of cannabinoids between March 2021 and January
2023.
(2) Age group
stratification for these 1 085 cases is as follows—and that information
is set out in a table, so I seek leave to have the table incorporated into Hansard .
[Leave granted for the following
material to be incorporated.]
Age
In-patient
Admission
10-19
years
179
20-29
years
456
30-39
years
273
40-49
years
123
50-59
years
46
60+
years
8
Explore WA Government Data
Search the full archive in the free dashboard, or query programmatically via API.
Explore more
Government Gazette
Appointments, regulatory notices, planning changes.
Hansard
Debates, questions, speeches and sentiment.
Tabled Papers
Reports and documents tabled in Parliament.
Committees
Committee profiles and recent reports.
Regulations
Subsidiary legislation with filters and summaries.
Bills
Proposed laws and parliamentary progress.
Acts
Current WA legislation and summaries.
Explanatory Memoranda
Bills with EMs (text/PDF) available.
Members
MP profiles, party breakdown and rankings.
Pollie Rankings
Data-driven rankings across 19 categories.
Amendment Chains
Track how schemes and regulations evolve over time.