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Table 1 Service care model and collaboration between service units

From: Collaborative community mental health and aged care services with peer support to prevent late-life depression: study protocol for a non-randomised controlled trial

Client group

Criteria

Intervention

Service unit(s)

Service period

At Risk

PHQ9 ≤ 4 or with risk factors

Selective prevention: engagement activity + PS

Community aged care

2–9 months

Prodromal

5 ≤ PHQ ≤ 9 without score on item 2 or 6

Indicated prevention: psycho education + PS

Community aged care

3–9 months

Mild

5 ≤ PHQ ≤ 9 and scored on item 2 and 6

Indicated prevention: group psychotherapy + PS

Community mental health care

3–9 months

Moderate

10 ≤ PHQ ≤ 14

Individual psychotherapy + PS

Community mental health care

6–12 months

Moderately severe and above*

PHQ ≥ 154

Care as usual

Traditional mental health service, HA

N. A

  1. *Beyond the scope of the current project, mainly referral for appropriate services
  2. PHQ Patient Health Questionnaire, PS Peer Supporter, HA Hospital Authority