The Health Action for Psychiatric Problems In Nigeria including Epilepsy and SubstanceS (HAPPINESS) intervention is a multicomponent, community-based, mobile technology-supported intervention that integrates mental health into primary health care centers in Nigeria using the World Health Organization’s Mental Health Gap Action Programme-Intervention Guide (mhGAP-IG). This study evaluates its implementation and patient-level clinical impact using a quasi-experimental design (single cohort with pre- and post-measures).

The HAPPINESS intervention implementation demonstrated high feasibility with 84% adoption rate (% of participating primary health centers that completed its roll out) and 81% fidelity (% of clinicians who completed required intervention components according to the protocol). Retention rate in care at 12 months was 86%. Among patients with complete clinical records analyzed (n = 178), there was a statistically significant reduction in 9-item Patient Health Questionnaire scores from baseline (Md = 9.5) to 6 months (Md = 3.0) post-intervention (z = 80.5, p < 0.001), with a large effect size (r = 0.8) and statistically significant reduction in Brief Psychiatric Rating Scale scores from baseline (Md = 36.0) to 6 months (Md = 17.0) post-intervention (z = 128.5, p < 0.001), with a large effect size (r = 0.9).

Mobile technology-enhanced, mhGAP-IG-based efforts to scale-up mental health services in Nigeria are feasible and effective.

Although recent reports suggest that service users in West African psychiatric facilities are exposed to poor quality of care and human rights violations, evidence is lacking on the extent and profile of specific deficits in the services provided to persons with mental health conditions.

To evaluate the quality of care and respect of human rights in psychiatric facilities in four West African countries, The Gambia, Ghana, Liberia and Sierra Leone, using the World Health Organization QualityRights Toolkit.

Trained research workers collected information through observation, review of records and interviews with service users, caregivers and staff. Independent panels of assessors used the information to assign scores to the criteria, standards and themes of the QualityRights Toolkit.

The study revealed significant gaps in these facilities. The rights to an adequate standard of living and to enjoyment of the highest attainable standard of health were poorly promoted. Adherence to the right to exercise legal capacity and the right to personal liberty and security was almost absent. Severe shortcomings in the promotion of the right to live independently and be included in the community were reported.

Inadequate appreciation of service users’ rights, lack of basic approaches to protect them and the non-promotion of rights-based services in these facilities are major problems that need to be addressed. Although it recognises the resource constraints and need for more human and financial resources, the study also identifies critical areas and challenges that require significant changes at the facility level.

Current international recommendations to address the large treatment gap for mental healthcare in low- and middle-income countries are to scale up integration of mental health into primary care. There are good outcome studies to support this, but less robust evidence for effectively carrying out integration and scale-up of such services, or for understanding how to address contextual issues that routinely arise.

This protocol is for a process evaluation of a programme called Mental Health Scale Up Nigeria. The study aims are to determine the extent to which the intervention was carried out according to the plans developed (fidelity), to examine the effect of postulated moderating factors and local context, and the perception of the programme by primary care staff and implementers.

We use a theoretical framework for process evaluation based on the Medical Research Council's Guidelines on Process Evaluation. A Theory of Change workshop was carried out in programme development, to highlight relevant factors influencing the process, ensure good adaptation of global normative guidelines and gain buy-in from local stakeholders. We will use mixed methods to examine programme implementation and outcomes, and influence of moderating factors.

Data sources will include the routine health information system, facility records (for staff, medication and infrastructure), log books of intervention activities, supervision records, patient questionnaires and qualitative interviews.

Evidence from this process evaluation will help guide implementers aiming to scale up mental health services in primary care in low- and middle-income countries.