Psych CASC / OSCE · Professional practice — epidemiology and public mental health
District public mental health briefing — CASC/communication station
Teaching/communication station: translate epidemiology into stepped care, prevention mix, and anti-stigma action without statistical intimidation or overpromise.
On this page & tools
Target exams
Station brief
Format. Communication / systems teaching station, approximately 8–10 minutes. Facilitate a shared plan; do not monologue statistics. [7]
Candidate instructions. Explain what the survey means for the district; correct the idea that low admissions equal low need; propose a stepped-care and prevention package; invite consumer voice on stigma and access; close with measurable next steps. [1][2]
Candidate scenario
Survey summary (station material): household sample, 12-month any mental disorder ~1 in 5; severe subgroup smaller but many untreated; GP presentations high for distress; youth wait-lists growing; one inpatient unit at capacity. Finance proposes only adding acute beds. School principal asks about whole-school programmes. Consumer representative reports stigma when seeking work. [1][5]
Marking domains
- Explains period prevalence and treatment gap in plain language [1][2]
- Rejects admission-rate fallacy without dismissing hospital care needs
- Proposes stepped care (self-help/primary care → secondary → tertiary) [5]
- Includes universal/selective/indicated prevention and Rose population logic for schools/social determinants [3][4][8]
- Addresses stigma with evidence-informed contact/education approaches [6]
- Collaborative tone; time management; concrete evaluation metrics (coverage, waits, school outcomes)
Reveal assessor key
Open. "Three numbers matter: how common problems are in the community, how severe they are, and how many people get no care — not only how many hospital beds we filled." Write 12-month prevalence, severity, treatment gap on the board. [1][2]
Correct myth. Low admissions can mean high threshold or scarce beds, not low illness. Specialist units still need capacity for severe illness and risk. [5]
Plan. Step 1 primary care collaborative care and brief therapies; Step 2 community teams for moderate–severe; Step 3 inpatient for acute risk/complexity. Add youth access pathways. Prevention: whole-school (universal), targeted family/perinatal (selective), indicated programmes for subthreshold high distress. Name housing/employment as health determinants, not "someone else's job" only. [3][4][8][7]
Stigma. Support contact-based anti-stigma work with local employers and lived-experience leadership. [6]
Close. Agree 3 metrics for 12 months (treatment coverage in severe band; median wait to community care; school programme reach) and a review date. Thank the consumer representative for prioritising access. [7]
References
- [1]Demyttenaere K, Bruffaerts R, Posada-Villa J, et al. Prevalence, severity, and unmet need for treatment of mental disorders in the WHO World Mental Health Surveys JAMA, 2004.PMID 15173149
- [2]Kohn R, Saxena S, Levav I, Saraceno B The treatment gap in mental health care Bull World Health Organ, 2004.PMID 15640922
- [3]Rose G Sick individuals and sick populations Int J Epidemiol, 2001.PMID 11416056
- [4]Gordon RS Jr An operational classification of disease prevention Public Health Rep, 1983.PMID 6856733
- [5]Saxena S, Thornicroft G, Knapp M, Whiteford H Resources for mental health: scarcity, inequity, and inefficiency Lancet, 2007.PMID 17804062
- [6]Thornicroft G, Mehta N, Clement S, et al. Evidence for effective interventions to reduce mental-health-related stigma and discrimination Lancet, 2016.PMID 26410341
- [7]Campion J, Javed A, Lund C, et al. Public mental health: required actions to address implementation failure in the context of COVID-19 Lancet Psychiatry, 2022.PMID 35065723
- [8]Lund C, Brooke-Sumner C, Baingana F, et al. Social determinants of mental disorders and the Sustainable Development Goals Lancet Psychiatry, 2018.PMID 29580610