The Effectiveness of Peer-Delivered Services in the Management of Mental Health Conditions: a Meta-Analysis of Studies from Low- and Middle-Income Countries

Perspectives of key informants before and after implementing UPSIDES peer support in mental health services: qualitative findings from an international multi-site study

BACKGROUND

Peer support is an essential part of recovery-oriented care worldwide. Contextual factors have an impact on the implementation of peer support work. However, research has paid little attention to similarities and differences of implementation factors in settings varying by income-level and cultural values. The aim of this study is to assess the factors influencing the implementation of a peer support intervention across study sites in low-, middle- and high-income countries in line with the Consolidation Framework for Implementation Research (CFIR).

METHOD

6 focus groups with a total of 54 key informants with relevant contextual (organisational) knowledge regarding implementation facilitators and barriers were conducted at six study sites Ulm and Hamburg (Germany), Butabika (Uganda), Dar es Salaam (Tanzania), Be'er Sheva (Israel), and Pune (India) before and 1.5 years after the start of UPSIDES peer support. Transcripts were analysed using qualitative content analysis.

RESULTS

Across study sites key informants reported benefits of peer support for service users and peer support workers as implementation facilitators. At study sites with lower resources, reduced workload for mental health workers and improved access to mental health services through peer support were perceived as implementation facilitators (CFIR Domain 1: Intervention characteristics). The degree of engagement of mental health workers (CFIR Domain 3: Inner Setting/Domain 4: Individuals involved) varied across study sites and was seen either as a barrier (low engagement) or a facilitator (high engagement). Across study sites, adequate training of peer support workers (CFIR Domain 5: Implementation process) was seen as animplementation facilitator, while COVID-19 as well as low resource availability were reported as implementation barriers (CFIR Domain 2: Outer setting).

CONCLUSIONS

This study highlights the importance of considering contextual factors when implementing peer support, including previous experience and perceived benefits. Particular attention should be given to organisational benefits such as workload reduction and the allocation of sufficient resources as key drivers in LMICs. In HICs, the potential of organisational benefits for successful implementation should be further investigated and promoted.

Effectiveness and implementation outcomes for peer-delivered mental health interventions in low- and middle-income countries: a mixed-methods systematic review

PURPOSE

This review aimed to evaluate interventions led by peer counselors (PCs) for adults with common mental disorders in low- and middle-income countries (LMICs) along indices of overall effectiveness and key implementation outcomes (acceptability, feasibility, cost, fidelity, sustainability).

METHODS

This review followed a mixed-methods systematic review design. MEDLINE/PubMed, Embase, PsycINFO, and Global Health databases were searched for PC-led interventions for adults in LMICs targeting depressive and/or anxiety disorders or PTSD. Quantitative data was narratively synthesized, and qualitative data was thematically synthesized separately. The results from the qualitative and quantitative syntheses were then combined in a cross-study synthesis.

RESULTS

Twenty-four papers describing thirteen PC-led interventions were included for review. Narrative synthesis results indicated mixed effectiveness of PC-led interventions in reducing depressive, anxiety, PTSD symptoms and high PC competency. Thematic synthesis revealed five descriptive themes: (1) Preferred PC characteristics; (2) Incentives and motivation for PCs; (3) Barriers to PC-led intervention implementation; (4) Helpful supervision/training practices; and (5) Overall high acceptability of PC-led interventions. Cross-study synthesis revealed high acceptability, feasibility, and fidelity, but cost and sustainability outcomes were underreported in included papers.

CONCLUSION

PC-led interventions seem to show initial promise in terms of effectiveness, acceptability, feasibility, cost, fidelity, and sustainability. Future research should focus on standardizing measurements of implementation outcomes to facilitate cross-study analysis. Additional empirical attention should be paid to underrepresented implementation outcomes (e.g., cost, sustainability). Finally, researchers should adopt a participatory approach that elevates the perspectives of PCs throughout all stages of the implementation process.

Using participatory action research to pilot a model of service user and caregiver involvement in mental health system strengthening in Ethiopian primary healthcare: a case study

Background

Little is known about actual involvement or how to achieve service user and caregiver in mental health systems strengthening in low-and middle-income countries. This study describes the processes and explores involvement experiences of participants in a pilot study of a new model of service user involvement in mental health system strengthening in a rural district in southern Ethiopia.

Methods

We applied a case study design using participatory action research (PAR). The PAR process comprised of three stages, each with iterative activities of plan, act, observe and reflect. Two stakeholder groups, a Research Advisory Group (RAG) and Research Participant Group (RPG), were established and collaborated in the PAR process. Data collection involved process documentation of meetings and activities: attendances, workshop minutes, discussion outputs, reflective notes, participatory observation of sessions, and in-depth interviews with 12 RPG members. We analyzed the process data descriptively. Thematic analysis was used for qualitative data. Triangulation and synthesis of findings was carried out to develop the case study.

Results

The stakeholder groups identified their top research priorities, developed an intervention and action plan and made a public presentation of preliminary findings. Key mechanisms used for inclusive participation included capacity building and bringing together diverse stakeholders, anchoring the study in established strong community involvement structures, and making use of participatory strategies and activities during the PAR process. Four themes were developed about experiences of involvement in PAR: (i) expectations and motivation, (ii) experiences of the dynamics of the PAR process, (iii) perceived impacts of involvement in the PAR process, and (iv) implementation challenges and future directions.

Conclusions

This case study demonstrated the feasibility and acceptability of implementing a complex model of service-user involvement in mental health system strengthening in a resource constrained setting. More needs to be done to embed service-user involvement into routines of the primary healthcare system, alongside sustained support and strengthening multi-stakeholder collaboration at multiple levels.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13033-022-00545-8.

An Update of Peer Support/Peer Provided Services Underlying Processes, Benefits, and Critical Ingredients

The purpose of this article is to delineate the current state-of-the-knowledge of peer support following the framework employed in the 2004 article (Solomon, Psychiatr Rehabil J. 2004;27(4):392-401 1). A scoping literature was conducted and included articles from 1980 to present. Since 2004, major growth and advancements in peer support have occurred from the development of new specializations to training, certification, reimbursement mechanisms, competency standards and fidelity assessment. Peer support is now a service offered across the world and considered an indispensable mental health service. As the field continues to evolve and develop, peer support is emerging as a standard of practice throughout various, diverse settings and shows potential to impact clinical outcomes for service users throughout the globe. While these efforts have enhanced the professionalism of the peer workforce, hopefully this has enhanced the positive elements of these services and not diluted them.

Improving knowledge, attitudes, and uptake of cervical cancer prevention among female students: A systematic review and meta-analysis of school-based health education

OBJECTIVE

Schools are an ideal environment for promoting cervical cancer prevention among young women. This systematic review and meta-analysis aimed to examine: 1) the effectiveness of school-based education for improving i) knowledge and perceptions of cervical cancer, HPV infection and vaccination, and cervical cancer screening; ii) attitudes and intentions toward, and uptake of HPV vaccination and cervical cancer screening among female students; and 2) the methodological quality of studies testing school-based cervical cancer education.

METHODS

Medline, EMBASE, CENTRAL, PsycINFO, CINAHL, Web of Science, and ERIC literature databases were searched from inception to November 2020. English language publications describing RCTs of any form of cervical cancer education delivered to female students in a school setting were eligible for inclusion. Included studies were assessed for methodological quality using the revised Cochrane risk of bias tool for randomized trials and the GRADE approach. Standardized Mean Differences and Odds Ratios were calculated and meta-analytically pooled using random-effects models. Subgroup analysis explored heterogeneity.

RESULTS

Of the 13 included studies, only one study was judged overall as having a low risk of bias. School-based education improved knowledge about cervical cancer and HPV infection. It also improved knowledge of and intentions toward HPV vaccination. Although education was ineffective in improving cervical cancer and HPV infection risk perceptions, and attitudes about HPV vaccination, a subgroup analysis found printed education materials focused on HPV-related content may have significant positive effects on risk perceptions. School-based education did not significantly increase HPV vaccination uptake; however, a face-to-face active approach seemed beneficial in a subgroup analysis. Heterogeneity (I2) ranged between 0% to 93%, and the quality of evidence was rated from low to moderate.

CONCLUSIONS

High-quality evidence from methodologically rigorous studies is needed to provide stronger guidance regarding the benefits of school-based education in improving knowledge and behaviours toward cervical cancer prevention.

From darkness to light: Barriers and facilitators to mental health recovery in the South African context

BACKGROUND

South Africa is a low and middle income country facing many challenges in public mental health care and implementation of recovery.

AIMS

To contribute to what barriers and facilitators to recovery might be for service users in South Africa, from the perspective of service users, carers and service providers from three psychiatric hospitals in the Western Cape province.

METHOD

Interviews and focus groups were conducted with service users, carers and service providers. Interviews and focus groups were transcribed and analysed using atlas.ti software and reflexive thematic analysis, from the bottom up.

RESULTS

The barriers, environment, family, public mental health services, stigma and service users' attitude or behaviour generated, were found to be the most salient. The facilitators to recovery generated were support, family or friends, service providers, structure and empowerment. The need for support was identified as an underlying component to all these themes.

CONCLUSION

Barriers and facilitators to recovery seemed to have both intrapersonal and external sources that intersect at times. Recovery needs to be supported at an individual level, especially through an under-utilised resource such as peer support work, but in conjunction with the development of recovery-enabling environments in services and communities in South Africa.

Effectiveness of peer support interventions for adults with depressive symptoms: a systematic review and meta-analysis

BACKGROUND

Many adults suffer from depression and peer support has been shown to reduce depressive symptoms.

AIM

To examine the effectiveness of peer support interventions for adults with depressive symptoms.

METHODS

Five electronic databases were searched until February 2021. A random-effect meta-analysis was conducted. The I² statistics and Cochran's Q chi-squared test assessed heterogeneity. Quality appraisal was conducted by the Cochrane risk of bias tool and the Grades of Recommendation, Assessment, Development, and Evaluation (GRADE) approach at the study and outcome level, respectively.

RESULTS

Seventeen studies conducted in most Western countries and on the maternal population were included. Three types of peer support interventions (peer-delivered psychotherapy, individualized peer mentoring, and peer support group discussions) were identified. Significant effects of peer support interventions were found when compared to standard care. However, professional-led psychotherapy and exercise programs showed more effectiveness compared to peer support group discussions.

CONCLUSIONS

Future trials could be improved by engaging trained healthy peers (peers with and without prior history of depression) to deliver interventions, encouraging online methods of communication between participants and peers, and facilitating the building of deeper connections between participants and peers. Considering the low-quality rating by the GRADE approach, future research is needed to corroborate current findings.

Scaling up evidence-based treatments in youth behavioral healthcare: Social work licensing influences on task-shifting opportunities

Youth behavioral healthcare workforce shortages have inhibited the scale-up of evidence-based treatments to address longstanding unmet needs andinequitable service coverage. Task-shifting is a strategy that could bolster workforce shortages. Legal and regulatory barriers, such as scope of practice licensing regulations, have hampered the use of task-shifting. Social workers make up the majority of the behavioral healthcare workforce in the U.S. and most social workers provide services to children and families. As such, social workers would play a pivotal role in any scale-up effort. In this guest editorial, we discuss the importance of social work licensing and use a case example to illustrate the unintended consequences that certain licensing regulations have on scaling-up evidence-based treatments via task-shifting. We conclude with recommendations on how social workers could be involved in taskshifting efforts to scale-up evidence-based treatments.

Acceptability and feasibility of peer-administered group interpersonal therapy for depression for people living with HIV/AIDS-a pilot study in Northwest Ethiopia

BACKGROUND

Psychological treatments are widely tested and have been effective in treating depressive symptoms. However, implementation of psychological treatments in the real world and in diverse populations remains difficult due to several interacting barriers. In this study, we assessed the acceptability and feasibility of peer-administered group interpersonal therapy for depressive symptoms among people living with HIV/AIDS in Northwest Ethiopia.

METHOD

We conducted a single-arm, peer-administered, group interpersonal therapy intervention with eight weekly sessions from 15 August to 15 December 2019 among people living with HIV/AIDS in Northwest Ethiopia. Four interpersonal therapy groups were formed for the intervention with a total of 31 participants.

RESULTS

Of the 31 recruited participants, 29 completed the intervention providing a retention rate of 93.5%. The process of the intervention and its outcomes were highly acceptable as most participants expressed success in resolving their psychosocial problems, adjusting to life changes and coping with stigma. The intervention was also reported to be feasible despite anticipated barriers such as access to transportation, perceived stigma and confidentiality concerns. The post-intervention assessment revealed significant reduction in depressive symptoms (mean difference (MD) = 9.92; t =  - 7.82; 95% CI, - 12.54, - 7.31; p < 0.001), improvement in perceived social support (MD = 0.79; t = 2.84; 95% CI, 0.22, 1.37; p = 0.009) and quality of life (MD = 0.39; t = 4.58; 95% CI, 0.21, 0.56; p < 0.001).

CONCLUSION

Group interpersonal therapy is feasible and acceptable, and people living with HIV/AIDS can benefit from group interpersonal therapy in managing depressive symptoms and in improving perceived social support and quality of life. Future studies should examine the effectiveness of group interpersonal therapy in this setting.

Associations between caregiver mental health and young children's behaviour in a rural Kenyan sample

Background: Research shows that caregiver mental health problems have direct, significant effects on child behaviour. While these risks are amplified in low-resource settings, limited evidence exists from these places, especially sub-Saharan Africa.

Objective: We measured associations between caregiver mental health and child behaviour in a rural Kenyan sample, hypothesizing that higher rates of caregiver mental health would be associated with increased child behavioural problems. We also sought to provide an overview of caregiver mental health symptoms in our sample.

Method: Cross-sectional data were collected from caregivers of children ages 4–5 years old enrolled in a community-based early child development programme in western Kenya. 465 caregivers were recruited and assessed at baseline, and answered questions about child behaviour, mental health symptoms (depression, anxiety, stress), and help-seeking. A multivariate linear regression model was used to assess significance of each mental health factor.

Results: Caregiver anxiety (p = 0.01) and parenting stress (p < 0.001) were significantly associated with child behavioural problems. 245 caregivers (52.9%) had high levels of symptoms of depression, anxiety, or both; furthermore, 101 caregivers (21.7%) scored above the cut-off for both of these scales. A high proportion of our sample (60.6%) reported seeking some formal or informal psychosocial support services; however, less than one-third of these caregivers were symptomatic (30.9%).

Conclusion: Anxiety and stress were associated with poorer child behavioural outcomes. Our sample reflected a higher prevalence of caregiving adults with mental health symptomology than previous estimates from Kenya, with few high-symptom caregivers seeking support. We discuss further implications for programming and health services delivery.

Pathways to psychiatric care and factors associated with delayed help-seeking among patients with mental illness in Northern Ethiopia: a cross-sectional study

OBJECTIVE

This study aimed to assess pathways to psychiatric care and factors associated with delayed help-seeking among patients with mental illness in Northern Ethiopia using the WHO Pathway Study Encounter Form.

DESIGN

A cross-sectional study design was used.

SETTING

Data were collected using face-to-face interview from patients with various diagnoses of mental illness attending outpatient treatment at Ayder Comprehensive Specialized Hospital in Mekelle City, Tigray, Northern Ethiopia.

PARTICIPANTS

Participants who came to attend outpatient treatment during the study period were included in the study using consecutive sampling technique.

OUTCOME MEASURES

Pathways to psychiatric care, delayed psychiatric treatment and factors affecting delayed psychiatric treatment.

RESULTS

The median duration from problem onset to contact with first care provider was 4 weeks, whereas contact with modern psychiatric services was 52.0 weeks. Study participants who were single (adjusted OR (AOR)=2.91, 95% CI 1.19 to 7.11), divorced (AOR=3.73, 95% CI 1.33 to 10.49) and who perceived mental illness as shameful (AOR=3.29, 95% CI 1.15 to 9.41) had delayed treatment-seeking behaviour, whereas participants with no history of substance use (AOR=0.43, 95% CI 0.20 to 0.92) were less likely to have delayed treatment-seeking behaviour.

CONCLUSIONS

There is significant delay in seeking modern psychiatric treatment. Religious healers were the first source of help for mental illness. Majority of the respondents described that mental illness was due to supernatural causes. Stigma and lack of awareness about where treatment is available were barriers to seeking appropriate care.

Peer support for people with severe mental illness versus usual care in high-, middle- and low-income countries: study protocol for a pragmatic, multicentre, randomised controlled trial (UPSIDES-RCT)

BACKGROUND

Peer support is an established intervention involving a person recovering from mental illness supporting others with mental illness. Peer support is an under-used resource in global mental health. Building upon comprehensive formative research, this study will rigorously evaluate the impact of peer support at multiple levels, including service user outcomes (psychosocial and clinical), peer support worker outcomes (work role and empowerment), service outcomes (cost-effectiveness and return on investment), and implementation outcomes (adoption, sustainability and organisational change).

METHODS

UPSIDES-RCT is a pragmatic, parallel-group, multicentre, randomised controlled trial assessing the effectiveness of using peer support in developing empowering mental health services (UPSIDES) at four measurement points over 1 year (baseline, 4-, 8- and 12-month follow-up), with embedded process evaluation and cost-effectiveness analysis. Research will take place in a range of high-, middle- and low-income countries (Germany, UK, Israel, India, Uganda and Tanzania). The primary outcome is social inclusion of service users with severe mental illness (N = 558; N = 93 per site) at 8-month follow-up, measured with the Social Inclusion Scale. Secondary outcomes include empowerment (using the Empowerment Scale), hope (using the HOPE scale), recovery (using Stages of Recovery) and health and social functioning (using the Health of the Nations Outcome Scales). Mixed-methods process evaluation will investigate mediators and moderators of effect and the implementation experiences of four UPSIDES stakeholder groups (service users, peer support workers, mental health workers and policy makers). A cost-effectiveness analysis examining cost-utility and health budget impact will estimate the value for money of UPSIDES peer support.

DISCUSSION

The UPSIDES-RCT will explore the essential components necessary to create a peer support model in mental health care, while providing the evidence required to sustain and eventually scale-up the intervention in different cultural, organisational and resource settings. By actively involving and empowering service users, UPSIDES will move mental health systems toward a recovery orientation, emphasising user-centredness, community participation and the realisation of mental health as a human right.

TRIAL REGISTRATION

ISRCTN, ISRCTN26008944. Registered on 30 October 2019.

Evidence and gap map of studies assessing the effectiveness of interventions for people with disabilities in low-and middle-income countries

Background

There are approximately 1 billion people in the world with some form of disability. This corresponds to approximately 15% of the world's population (World Report on Disability, 2011). The majority of people with disabilities (80%) live in low- and middle-income countries (LMICs), where disability has been shown to disproportionately affect the most disadvantaged sector of the population. Decision makers need to know what works, and what does not, to best invest limited resources aimed at improving the well-being of people with disabilities in LMICs. Systematic reviews and impact evaluations help answer this question. Improving the availability of existing evidence will help stakeholders to draw on current knowledge and to understand where new research investments can guide decision-making on appropriate use of resources. Evidence and gap maps (EGMs) contribute by showing what evidence there is, and supporting the prioritization of global evidence synthesis needs and primary data collection.

Objectives

The aim of this EGM is to identify, map and describe existing evidence of effectiveness studies and highlight gaps in evidence base for people with disabilities in LMICs. The map helps identify priority evidence gaps for systematic reviews and impact evaluations.

Methods

The EGM included impact evaluation and systematic reviews assessing the effect of interventions for people with disabilities and their families/carers. These interventions were categorized across the five components of community-based rehabilitation matrix; health, education, livelihood, social and empowerment. Included studies looked at outcomes such as, health, education, livelihoods, social inclusion and empowerment, and were published for LMICs from 2000 onwards until January 2018. The searches were conducted between February and March 2018. The EGM is presented as a matrix in which the rows are intervention categories (e.g., health) and subcategories (e.g., rehabilitation) and the column outcome domains (e.g., health) and subdomains (e.g., immunization). Each cell lists the studies for that intervention for those outcomes, with links to the available studies. Included studies were therefore mapped according to intervention and outcomes assessed and additional filters as region, population and study design were also coded. Critical appraisal of included systematic review was done using A Measurement Tool to Assess Systematic Reviews' rating scale. We also quality-rated the impact evaluation using a quality assessment tool based on various approaches to risk of bias assessment.

Results

The map includes 166 studies, of which 59 are systematic reviews and 107 impact evaluation. The included impact evaluation are predominantly quasiexperimental studies (47%). The numbers of studies published each year have increased steadily from the year 2000, with the largest number published in 2017.The studies are unevenly distributed across intervention areas. Health is the most heavily populated area of the map. A total of 118 studies of the 166 studies concern health interventions. Education is next most heavily populated with 40 studies in the education intervention/outcome sector. There are relatively few studies for livelihoods and social, and virtually none for empowerment. The most frequent outcome measures are health-related, including mental health and cognitive development (n = 93), rehabilitation (n = 32), mortality and morbidity (n = 23) and health check-up (n = 15). Very few studies measured access to assistive devices, nutrition and immunization. Over half (n = 49) the impact evaluation come from upper-middle income countries. There are also geographic gaps, most notably for low income countries (n = 9) and lower-middle income countries (n = 34). There is a fair amount of evidence from South Asia (n = 73) and Sub-Saharan Africa (n = 51). There is a significant gap with respect to study quality, especially with respect to impact evaluation. There appears to be a gap between the framing of the research, which is mostly within the medical model and not using the social model of disability.

Conclusion

Investing in interventions to improve well-being of people with disabilities will be critical to achieving the 2030 agenda for sustainable development goals. The EGM summarized here provides a starting point for researchers, decision makers and programme managers to access the available research evidence on the effectiveness of interventions for people with disabilities in LMICs in order to guide policy and programme activity, and encourage a more strategic, policy-oriented approach to setting the future research agenda.

Using Peer Support in Developing Empowering Mental Health Services (UPSIDES): Background, Rationale and Methodology

BACKGROUND

Peers are people with lived experience of mental illness. Peer support is an established intervention in which peers offer support to others with mental illness. A large proportion of people living with severe mental illness receive no care. The care gap is largest in low- and middle-income countries, with detrimental effects on individuals and societies. The global shortage of human resources for mental health is an important driver of the care gap. Peers are an under-used resource in global mental health.

OBJECTIVES

To describe rationale and methodology of an international multicentre study which will scale-up peer support for people with severe mental illness in high-, middle-, and low-income countries through mixed-methods implementation research.

METHODS

UPSIDES is an international community of research and practice for peer support, including peer support workers, mental health researchers, and other relevant stakeholders in eight study sites across six countries in Europe, Africa, and Asia. During the first two years of UPSIDES, a series of qualitative studies and systematic reviews will explore stakeholders' perceptions and the current state of peer support at each site. Findings will be incorporated into a conceptual framework to guide the development of a culturally appropriate peer support intervention to be piloted across all study sites. All intervention and study materials will be translated according to internationally recognised guidelines.Expected Impact: UPSIDES: will leverage the unique expertise of people with lived experience of mental illness to strengthen mental health systems in high-, middle- and low-income countries. UPSIDES will actively involve and empower service users and embed patient-centeredness, recovery orientation, human rights approaches, and community participation into services. The focus on capacity-building of peers may prove particularly valuable in low-resource settings in which shortages of human capital are most severe.

Public stigma and attitudes toward psychological help-seeking in the United Arab Emirates: The mediational role of self-stigma

PURPOSE

Scholars argue that public stigma is predictive of self-stigma, and self-stigma is a primary predictor of attitudes toward seeking psychological help (ATPH). This assertion remains undetermined outside of the United States. This study examines a potential mediational model in which internalized stigma was hypothesized to mediate the relationship between public stigma and ATPH using a sample in the United Arab Emirates.

DESIGN AND METHODS

Cross-sectional, correlational design; 114 students completed measures of public stigma, self-stigma, and ATPH.

FINDINGS

Full mediation occurred. The sample exhibited high levels of both public stigma and self-stigma. Psychology students manifested diminished levels of stigma and more favorable ATPH. Results are discussed in relation to the prevalent cultural and contextual factors.

PRACTICE IMPLICATIONS

Stigma reduction campaigns in this locale should target internalized stigma and its associated socio-cultural nuances.

Theory of change for the delivery of talking therapies by lay workers to survivors of humanitarian crises in low-income and middle-income countries: protocol of a systematic review

INTRODUCTION

There is a severe shortage of specialist mental healthcare providers in low-income and middle-income countries (LMICs) affected by humanitarian crises. In these settings, talking therapies may be delivered by non-specialists, including lay workers with no tertiary education or formal certification in mental health. This systematic review will synthesise the literature on the implementation and effectiveness of talking therapies delivered by lay workers in LMICs affected by humanitarian crises, in order to develop a Theory of Change (ToC).

METHODS AND ANALYSIS

Qualitative, quantitative and mixed-methods studies assessing the implementation or effectiveness of lay-delivered talking therapies for common mental disorders provided to adult survivors of humanitarian crises in LMICs will be eligible for inclusion. Studies set in high-income countries will be excluded. No restrictions will be applied to language or year of publication. Unpublished studies will be excluded. Seven electronic databases will be searched: MEDLINE, Embase, PsycINFO, PsycEXTRA, Global Health, Cochrane Library and ClinicalTrials.gov. Contents pages of three peer-reviewed journals will be hand-searched. Sources of grey literature will include resource directories of two online mental health networks (MHPSS.net and MHInnovation.net) and expert consultation. Forward and backward citation searches of included studies will be performed. Two reviewers will independently screen studies for inclusion, extract data and assess study quality. A narrative synthesis will be conducted, following established guidelines. A ToC map will be amended iteratively to take into account the review results and guide the synthesis.

ETHICS AND DISSEMINATION

Findings will be presented in a manuscript for publication in a peer-reviewed journal and disseminated through a coordinated communications strategy targeting knowledge generators, enablers and users.

PROSPERO REGISTRATION NUMBER

CRD42017058287.