Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

300 questions · 325 findings · 28 reviews · Effective Practice and Organisation of Care

No studies found 84 · 25.8%GRADE not reported 6 · 1.8%Very low 115 · 35.4%Low 70 · 21.5%Moderate 45 · 13.8%High 5 · 1.5%

Lay health worker‐led psychological interventions vs usual care

Quality of life ‐ intermediate term (1 to 6 months post intervention) EQ‐5Di; SF‐36c,m; WHOQOL‐BREFe,j,n (higher score = better quality of life) · adults with post‐traumatic stress and CMDs
1 finding from 1 review

Lay health worker‐led psychological interventions vs usual care

Hospital admissions · adults with post‐traumatic stress and CMDs

It is very uncertain whether lay health worker‐led psychological interventions changes service utilisation ‐ hospital admissions (1 to 6 months post… compared with usual care (very low certainty).

1 finding from 1 review

Primary health professional‐led psychological interventions vs usual care or no treatment

Prevalence of adults with probable PTSD (1 to 6 months post intervention) Diagnosis defined by HTQ ≥ 1.75 (RR > 1 denotes lower prevalence compared to control) · adults with post‐traumatic stress or common mental disorders

Primary health professional‐led psychological interventions may leads to higher prevalence of adults with probable PTSD (1 to 6 months post… compared with usual or no care (low certainty).

1 finding from 1 review

Primary health professional‐led psychological interventions vs usual care or no treatment

Anxiety and depression · adults with post‐traumatic stress or common mental disorders

Primary health professional‐led psychological interventions may leads to higher prevalence of adults with probable depression or anxiety (1 to 6… compared with usual or no care (low certainty).

1 finding from 1 review

Primary health professional‐led psychological interventions vs usual care or no treatment

Severity of PTSD symptoms · adults with post‐traumatic stress or common mental disorders

It is very uncertain whether primary health professional‐led psychological interventions changes PTS symptoms (1 to 6 months post intervention) Harvard Trauma… compared with usual or no care (very low certainty).

1 finding from 1 review

Primary health professional‐led psychological interventions vs usual care or no treatment

Depression symptoms (1 to 6 months post intervention) Hopkins Symptom Checklist ‐ depression (higher score = higher severity) · adults with post‐traumatic stress or common mental disorders

It is very uncertain whether primary health professional‐led psychological interventions changes depression symptoms (1 to 6 months post intervention) Hopkins… compared with usual or no care (very low certainty).

1 finding from 1 review

Primary health professional‐led psychological interventions vs usual care or no treatment

Functional impairment · adults with post‐traumatic stress or common mental disorders

It is very uncertain whether primary health professional‐led psychological interventions changes functional impairment (1 to 6 months post intervention) Locally… compared with usual or no care (very low certainty).

1 finding from 1 review

Primary health professional‐led psychological interventions vs usual care or no treatment

Adverse events (RR > 1 denotes greater risk of harm) · adults with post‐traumatic stress or common mental disorders

It is very uncertain whether primary health professional‐led psychological interventions changes adverse events (RR > 1 denotes greater risk of harm) compared with usual or no care (very low certainty).

1 finding from 1 review

Lay health worker‐led interventions for adult patients with harmful or hazardous alcohol or substance use vs enhanced usual care

Clinical recovery ‐ harmful or hazardous alcohol use (1 to 6 months post intervention) · adult patients with harmful or hazardous alcohol or substance use

Lay health worker‐led interventions for adult patients with harmful… showed no clear difference in clinical recovery ‐ harmful or hazardous alcohol use (1 to 6 months… compared with enhanced usual care (low certainty).

1 finding from 1 review

Lay health worker‐led interventions for adult patients with harmful or hazardous alcohol or substance use vs enhanced usual care

Prevalence of methamphetamine use (1 to 6 months post intervention) (RR < 1 denotes lower prevalence compared to control) · adult patients with harmful or hazardous alcohol or substance use

Lay health worker‐led interventions for adult patients with harmful… showed no clear difference in prevalence of methamphetamine use (1 to 6 months post intervention)… compared with enhanced usual care (low certainty).

1 finding from 1 review

Lay health worker‐led interventions for adult patients with harmful or hazardous alcohol or substance use vs enhanced usual care

Clinical symptoms ‐ alcohol use (1 to 6 months post intervention) ‐ risk of hazardous or harmful alcohol use · adult patients with harmful or hazardous alcohol or substance use
1 finding from 1 review

Lay health worker‐led interventions for adult patients with harmful or hazardous alcohol or substance use vs enhanced usual care

Clinical symptoms ‐ alcohol and substance use (1 to 6 months post intervention) · adult patients with harmful or hazardous alcohol or substance use
1 finding from 1 review

Lay health worker‐led psychological interventions vs usual care

Functional impairment ‐ not measured · adults with common mental disorders

Lay health worker‐led psychological interventions showed no clear difference in functional impairment/disability ‐ intermediate term (1 to 6 months… compared with usual care (low certainty).

1 finding from 1 review

Lay health worker‐led interventions for adult patients with harmful or hazardous alcohol or substance use vs enhanced usual care

Quality of life · adult patients with harmful or hazardous alcohol or substance use

The review found no eligible studies for this question.

1 finding from 1 review