Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

479 questions · 502 findings · 35 reviews · Effective Practice and Organisation of Care

No studies found 140 · 27.9%GRADE not reported 24 · 4.8%Very low 139 · 27.7%Low 137 · 27.3%Moderate 51 · 10.2%High 11 · 2.2%

Lay health worker‐ vs specialist‐led care

Service utilisation ‐ hospitalisation during intervention (RR > 1 denotes greater risk)Â · people with severe mental disorders

It is very uncertain whether lay health worker‐ changes service utilisation ‐ hospitalisation during intervention (RR > 1… compared with specialist‐led care (very low certainty).

1 finding from 1 review

Lay health worker‐ vs specialist‐led care

Adverse events ‐ death from suicide during intervention (RR > 1 denotes greater risk)Â · people with severe mental disorders

It is very uncertain whether lay health worker‐ changes adverse events ‐ death from suicide during intervention (RR > 1… compared with specialist‐led care (very low certainty).

1 finding from 1 review

Primary health professional‐led or collaborative care vs specialist‐led care

Clinical recovery from severe mental disorder (immediately post intervention) Defined by BPRS decreased by ≥ 80% (RR > 1 denotes greater likelihood of recovery) · people with severe mental disorders

It is very uncertain whether primary health professional‐led or collaborative care changes clinical recovery from severe mental disorder (immediately post… compared with specialist‐led care (very low certainty).

1 finding from 1 review

Primary health professional‐led or collaborative care vs specialist‐led care

Relapse of severe mental disorder (immediately post intervention) Defined by re‐appearance of symptoms or worsening of symptoms necessitating adjustment of medicationa; Li 2002; based on 1 item scoring ≥ 5 or 2 items scoring ≥ 4 in items 4, 7, 11,... · people with severe mental disorders

It is very uncertain whether primary health professional‐led or collaborative care changes relapse of severe mental disorder (immediately post intervention)… compared with specialist‐led care (very low certainty).

1 finding from 1 review

Primary health professional‐led or collaborative care vs specialist‐led care

Hospital admission/re‐admission · people with severe mental disorders

It is very uncertain whether primary health professional‐led or collaborative care changes service utilisation ‐ hospital re‐admission (during intervention)… compared with specialist‐led care (very low certainty).

1 finding from 1 review