Lifetime and 12-month prevalence of mental disorders in the Nigerian Survey of Mental Health and Well-Being

Influence of Depression on the Quality of Life in Patients With Parkinson's Disease in Southwest Nigeria

Background Parkinson's disease (PD) is a chronic neurodegenerative disorder that significantly impacts patients' quality of life (QoL). Depression is a common comorbidity in patients with PD, potentially exacerbating QoL deterioration. This study aimed to assess the influence of depression on QoL in patients with PD at Ladoke Akintola University of Technology (LAUTECH), Ogbomoso, Nigeria. Methodology A cross-sectional, descriptive study design was utilized. The study included 420 patients with PD attending the Neurology Clinic at LAUTECH. A purposive sampling technique was employed to select participants. Data collection instruments included the Unified Parkinson's Disease Rating Scale (UPDRS) for PD assessment, the Hoehn and Yahr scale for PD staging, the Patient Health Questionnaire-9 (PHQ-9) for depression evaluation, and the Parkinson's Disease Questionnaire-39 (PDQ-39) for QoL assessment. Data were analyzed using SPSS version 25.0 (IBM Corp., Armonk, NY), with descriptive and inferential statistics (Chi-square test) to determine associations, considering a P-value < 0.05 as significant. Results Among the participants, the prevalence of moderate to severe depression was 245, representing 58.81%. QoL assessment revealed that 297 (70.71%) patients with PD reported poor to very poor overall QoL. A significant association was found between the degree of depression and overall QoL (P = 0.000). Patients with severe depression reported the poorest QoL, while those with minimal to no depression reported the highest QoL scores. Conclusions Depression significantly impacts the QoL in patients with PD at LAUTECH in southwest Nigeria. Addressing depression in PD management is crucial to improve patient outcomes.

Adaption and validation of the Rwandese version of the Mood Disorder Questionnaire for the screening of bipolar disorder

BACKGROUND

Bipolar disorder is challenging to diagnose. In Rwanda, a sub-Saharan country with a limited number of psychiatrists, the number of people with an undetected diagnosis of bipolar disorder could be high. Still, no screening tool for the disorder is available in the country. This study aimed to adapt and validate the Mood Disorder Questionnaire in the Rwandan population.

METHODS

The Mood Disorder Questionnaire was translated into Kinyarwanda. The process involved back-translation, cross-cultural adaptation, field testing of the pre-final version, and final adjustments. A total of 331 patients with either bipolar disorder or unipolar major depression from two psychiatric outpatient hospitals were included. The statistical analysis included reliability and validity analyses and receiver operating characteristic curve (ROC) analysis. The optimal cut-off was chosen by maximizing Younden's index.

RESULTS

The Rwandese version of The Mood Disorder Questionnaire had adequate internal consistency (Cronbach's alpha =0.91). The optimal threshold value was at least six positive items, which yielded excellent sensitivity (94.7%), and specificity (97.3%). The ROC area under the curve (AUC) was 0.99.

CONCLUSION

The adapted tool showed good psychometric properties in terms of reliability and validity for the screening of bipolar disorder, with a recommended cutoff value of six items on the symptom checklist for a positive score and an exclusion of items 14 and 15. The tool has the potential to be a crucial instrument to identify otherwise undetected cases of bipolar disorder in Rwanda, improving access to mental health treatment, thus enhancing the living conditions of people with bipolar disorder.

Epidemiology of alcohol use disorder in the general population of Togo and Benin: the ALCOTRANS study

INTRODUCTION

Access to data concerning mental health, particularly alcohol use disorders (AUD), in sub-Saharan Africa is very limited. This study aimed to estimate AUD prevalence and identify the associated factors in Togo and Benin.

METHODS

A cross-sectional study was conducted between April and May 2022, targeting individuals aged 18 years and above in the Yoto commune of Togo and the Lalo commune of Benin. Subjects were recruited using a multi-stage random sampling technique. AUD diagnoses were made using the MINI adapted to DSM-5 criteria. Our study collected sociodemographic information, data on psychiatric comorbidities, stigmatization, and assessed cravings, using a series of scales. The association between AUD and various factors was analyzed using multivariable logistic regression.

RESULTS

In Togo, 55 of the 445 people investigated had AUD (12.4%; [95% CI: 9.5-15.7%]). Among them, 39 (70.9%) had severe AUD and the main associated comorbidities were suicidal risk (36.4%), and major depressive disorder (16.4%). Associated factors with AUD were male gender (aOR: 11.3; [95% CI: 4.8-26.7]), a higher Hamilton Depression Rating Scale (HDRS) score (aOR: 1.2; [95% CI: 1.1-1.3]) and a lower Stigma score measured by the Explanatory Model Interview Catalogue (EMIC) (aOR: 0.9; [95% CI: 0.8-0.9). The stigma scores reflect perceived societal stigma towards individuals with AUD. In Benin, 38 of the 435 people investigated had AUD (8.7%; [95% CI: 6.4-11.7]), and the main associated comorbidities were suicidal risk (18.4%), tobacco use disorder (13.2%) and major depressive episode (16.4%). Associated factors with AUD were male gender (aOR: 6.4; [95% CI: 2.4-17.0]), major depressive disorder (aOR: 21.0; [95% CI: 1.5-289.8]), suicidal risk (aOR: 3.7; [95% CI: 1.2-11.3]), a lower Frontal Assessment Battery (FAB) score (aOR:0.8; [95% CI: 0.8-0.9]) and a lower perceived stigma score (by EMIC )(aOR: 0.9; [95% CI: 0.8-0.9]).

CONCLUSION

In these communes of Togo and Benin, AUD prevalence is notably high. A deeper understanding of the disease and its local determinants, paired with effective prevention campaigns, could mitigate its impact on both countries.

Teenage Blues: Predictors of depression among adolescents in Nigeria

BACKGROUND

Depressive disorders, with a prevalence of 15-21%, are among the most common disorders in children and adolescents, and increases the risk of suicide, the second leading cause of death in children aged 10 to 19.

AIM

To determine the prevalence and correlates of depressive disorders among senior students attending secondary schools in Abeokuta.

METHOD

The study was conducted in five schools randomly selected from a representative sample and was carried out in 2 phases. In the first phase, students were selected via systematic random sampling and given consent forms and GHQ-12 to administer to the parents. In the second phase, students who returned a signed informed consent form and filled out GHQ-12 were interviewed using MINI-KID, Rosenberg's Self-Esteem Scale, Family-APGAR, and sociodemographic questionnaire. Multivariate regression analyses were conducted with p-value <0.05 as level of significance.

RESULTS

The mean age was 15.3 years (SD = 1.27); 48.8% were male. The twelve-month prevalence of major depression was 11.3% and dysthymia was 1.4%. In the final regression analysis, female gender [OR = 4.3, p = 0.046], the experience of bullying [OR = 7.96, p = 0.004], difficulty getting along with friends, [OR = 7.5, p = 0.004], history of sexual abuse [OR = 8.1, p = 0.01], and perceived family dysfunction [OR = 4.9, p = 0,023] were found to be independent predictors of depressive disorders.

CONCLUSION

Depressive syndromes are a significant health burden in adolescents. Being female, being bullied, having a history of sexual abuse, and family dysfunctionality are risk factors associated with depression among these population.

The quality of life and its inter-relationship with posttraumatic stress disorder and social support in two post-conflict communities in Nigeria

The study aimed to compare the quality of life (QoL) in two communities with different exposures to conflict and investigate the inter-relationship between posttraumatic stress disorder (PTSD), social support, and QoL. This is a cross-sectional with 413 participants. Study instruments included the PTSD module of the Composite International Diagnostic Interview (CIDI), the World Health Organization Quality of Life BREF (WHOQoL-BREF), and the Multidimensional Scale of Perceived Social Support (MSPSS). The family domain of social support was protective of both PTSD and QoL. Except for the relationship between community's location and the physical subscale of the QoL, a hierarchical regression analysis showed that all the independent variables were significantly associated with the QoL domains. Direct exposure to crises impaired QoL more than areas indirectly exposed. PTSD and the family domain of social support play a significant role in the QoL outcome. This suggests that therapeutic intervention to improve QoL should target these key variables.

COVID-19 Pandemic and Food Insecurity Fuel the Mental Health Crisis in Africa

Objective: Providing country-level estimates for prevalence rates of Generalized Anxiety Disorder (GAD), COVID-19 exposure and food insecurity (FI) and assessing the role of persistent threats to survival-exemplified by exposure to COVID-19 and FI-for the mental health crisis in Africa. Methods: Original phone-based survey data from Mozambique, Sierra Leone, Tanzania and Uganda (12 consecutive cross-sections in 2021; n = 23,943) were analyzed to estimate prevalence rates of GAD. Logistic regression models and mediation analysis using structural equation models identify risk and protective factors. Results: The overall prevalence of GAD in 2021 was 23.3%; 40.2% in Mozambique, 17.0% in Sierra Leone, 18.0% in Tanzania, and 19.1% in Uganda. Both COVID-19 exposure (ORadj. 1.4; CI 1.3-1.6) and FI (ORadj 3.2; CI 2.7-3.8) are independent and significant predictors of GAD. Thus, the impact of FI on GAD was considerably stronger than that of COVID-19 exposure. Conclusion: Persistent threats to survival play a substantial role for mental health, specifically GAD. High anxiety prevalence in the population requires programs to reduce violence and enhance social support. Even during a pandemic, addressing FI as a key driver of GAD should be prioritized by policymakers.

The Challenges and Opportunities for Mental Health Twin Research in Nigeria

The recent interest in increasing diversity in genetic research can be useful in uncovering novel insights into the genetic architecture of mental health disorders - globally and in previously unexplored settings such as low- and middle-income settings like Nigeria. Genetic research into mental health is potentially promising in Nigeria and we reflect on the challenges and opportunities for twin research which may be particularly suited to Nigeria. The higher rates of twinning in Africa and Nigeria specifically, make the twin design an affordable and readily maintainable approach for genetic research in the country. Despite potential challenges with recruitment, data collection, data analysis and dissemination; the success of current efforts suggest that the twin design can tapped even further for greater impact in the country. We highlight some ways in which the scope of twin research can be increased and suggest some ways in which existing challenges can be overcome including recent Patient Participant Involve and Engagement activities.

Lessons of Hope and Resilience: A Co-Produced Qualitative Study of the Experiences of Youth Living with Psychosis During the COVID-19 Pandemic in Nigeria

Much of the emerging evidence on the impact of COVID-19 on people with psychosocial disabilities comes from high-income countries. This study sought to explore the perceptions and experiences of youths living with psychosis during the COVID-19 pandemic in Nigeria. Using a co-produced research process, a facility-based study was conducted among youth with confirmed diagnosis of a psychotic disorder. In-depth interviews were conducted with 20 participants. Data was transcribed, double-coded and analysed with Atlas.ti using a thematic analysis approach. We found that participants were aware of good evidence-based information on the nature of the disease and the pandemic. Many of them described worsening mental health and disruptions to daily routines. Opportunities for deepening family relationships, skill building, helping others, and extended time for previously neglected self-development activities were described. This study benefitted from co-production with persons with lived experience, which could be harnessed for future research on psychosis.

Integrated services for neglected tropical diseases and mental health: pilot study assessing acceptability, feasibility and attitudes in Benue State, Nigeria

BACKGROUND

The World Health Organization recommends person-centred and integrated care for mental health of people with Neglected Tropical Diseases. This study assesses the feasibility and acceptability of mental health care for people with NTDs, which integrated mental health care into primary health care services, in central Nigeria.

METHODS

People affected by NTDs were screened for depression and anxiety, and those identified referred to the integrated service. Following their use of the service, Focus Group Discussions were held with service users and carers, and Key Informant Interviews with health service providers. Service providers were also interviewed on attitudes, before and after training with the WHO mhGAP Intervention Guide.

RESULTS

In general service users reported satisfaction with the services, which they found to be dignified and accessible. They expressed concern about affordability, and waiting times. Providers also felt the service was acceptable. System gaps were identified, for example in health information systems and supervision. Poor political will threatened sustainability. CAMI scores did not change with mhGAP training.

CONCLUSION

Locally designed services that support mental health of people with NTDs can be integrated into primary care. Weak basic infrastructure and lack of investment are barriers to sustainability and potential effectiveness.

CONTEXTE

L'Organisation mondiale de la santé recommande des soins centrés sur la personne et intégrés pour la santé mentale des personnes atteintes de maladies tropicales négligées. Cette étude évalue la faisabilité et l'acceptabilité des soins de santé mentale pour les personnes atteintes de MTN, qui ont intégré les soins de santé mentale dans les services de soins de santé primaires, dans le centre du Nigeria. Cette étude évalue la faisabilité et l'acceptabilité des soins de santé mentale pour les personnes atteintes de MTN, qui intègrent les soins de santé mentale dans les services de soins de santé primaires, au centre du Nigeria.

MÉTHODES UTILISÉES

Les personnes atteintes de MTN ont fait l'objet d'un dépistage de la dépression et de l'anxiété, et celles qui ont été identifiées ont été orientées vers le service intégré. Après leur utilisation du service, des discussions de groupe ont été organisées avec les utilisateurs du service et les soignants, et des entretiens avec des informateurs clés avec des prestataires de services de santé. Les prestataires de services ont également été interrogés sur leurs attitudes, avant et après la formation au guide d'intervention mhGAP de l'OMS.

RÉSULTATS

En général, les utilisateurs des services se sont déclarés satisfaits des services, qu'ils ont trouvés dignes et accessibles. Ils ont exprimé des inquiétudes quant à l'accessibilité financière et aux temps d'attente. Les prestataires ont également estimé que le service était acceptable. Des lacunes ont été identifiées dans le système, par exemple dans les systèmes d'information sanitaire et la supervision. Le manque de volonté politique a menacé la viabilité des services. Les scores CAMI restent inchangés suite à la formation au mhGAP.

CONCLUSION

Des services de santé mentale conçus localement pour venir en aide aux personnes atteintes de MTN peuvent être intégrés aux soins primaires. La qualité de l'infrastructure de base et le manque d'investissement sont les obstacles principaux à la durabilité et à l'efficacité potentielle de ces interventions.

ANTECEDENTES

La Organización Mundial de la Salud recomienda una atención centrada en la persona e integrada para la salud mental de las personas con Enfermedades Tropicales Desatendidas. Este estudio evalúa la viabilidad y aceptabilidad de la atención a la salud mental de las personas con ETD, que integra la atención a la salud mental en los servicios de atención primaria, en Nigeria central.

MÉTODOS

Las personas afectadas por ETD fueron examinadas para detectar depresión y ansiedad, y las identificadas fueron derivadas al servicio integrado. Tras su utilización del servicio, se celebraron debates de grupos focales con los usuarios y cuidadores del servicio, y entrevistas a informantes clave con los proveedores de servicios sanitarios. También se entrevistó a los proveedores de servicios sobre sus actitudes, antes y después de la formación con la Guía de Intervención mhGAP de la OMS.

RESULTADOS

En general, los usuarios se mostraron satisfechos con los servicios, que consideraron dignos y accesibles. Expresaron su preocupación por la asequibilidad y los tiempos de espera. Los proveedores también consideraron que el servicio era aceptable. Se detectaron deficiencias en el sistema, por ejemplo en los sistemas de información sanitaria y la supervisión. La escasa voluntad política amenazaba la sostenibilidad. Las puntuaciones CAMI no cambiaron con la formación mhGAP.

CONCLUSIÓN

Los servicios diseñados localmente para apoyar la salud mental de las personas con ETD pueden integrarse en la atención primaria. La debilidad de la infraestructura básica y la falta de inversión son obstáculos para la sostenibilidad y la eficacia potencial.

A comparative study of posttraumatic stress disorder in two post-conflict communities in Benue state Nigeria

Background

The attendant long-term mental health consequence of the conflict of various kinds in Nigeria is yet to be thoroughly investigated. The Tiv-Fulani farmer-herdsmen crisis is one such conflict that occurred in 2013/2014 in Guma local government in Benue state.

Aims

This study seeks to find out some years after the crisis, the prevalence difference in posttraumatic stress disorder (PTSD) between a community (Uikpiam) with direct exposure to the conflict and another (Daudu) with indirect exposure, the pattern of distribution of PTSD symptoms and the associate factors of PTSD.

Methods

It is a cross-sectional one that employed a multi-stage cluster sampling method to select 413 participants; 135 from Uikpiam and 278 from Daudu. The study instruments administered included a questionnaire with some socio-demographic variables and an extract from the PTSD module of the Composite International Diagnostic Interview.

Results

The prevalence rate of PTSD was higher in Uikpiam (16.3%) when compared to Daudu (4.3%). A high proportion of sub-threshold symptoms of PTSD was recorded in both communities. An association was found between a lower educational qualification and PTSD (χ2 = 8.373; p = 0.039).

Conclusion

PTSD can be a prolonged mental ill-effect of crisis and proximity to trauma sites increases vulnerability including lower education. This study looked at PTSD only as an outcome of this crisis, but mental health adverse outcomes of the crisis may not be limited to this alone, hence the need for further investigations for relevant stakeholders to act.

A qualitative integrative analysis of service users' and service providers' perspectives on ways to reduce coercion in mental health care

PURPOSE

The movement to develop and implement non-coercive alternatives in the provision of mental health care is gaining momentum globally. To strengthen the basis of potential interventions that will be contextually relevant, and to complement the body of literature which is largely from high-income settings, the current study sought to explore the suggestions of service users and providers in Nigeria on how to reduce the use of coercive measures in mental health settings.

METHODS

Semi-structured interviews with 30 mental health professionals and four focus group discussions among 30 service users from two psychiatric hospitals in Nigeria were conducted. The data were analyzed thematically with the aid of MAXQDA.

RESULTS

The suggestions proposed by service users and mental health professionals were within the broad themes of communication, policies and legislation, and increased resources. Service users felt that improved communication, home consultations, non-legal advocates and clear rules and legislation would reduce the use of coercion, while service providers suggested increased public mental health literacy, better interpersonal relationships with patients, increased resources for mental health care, more research on the topic and regulation of coercive measures.

CONCLUSION

Many of the suggestions from this study reinforce strategies already in place to decrease coercion in other settings. However, additional recommendations that are relevant to the study setting, such as enhancing public mental health literacy, mental health legislation reform and increasing access to mental health services, deserve further consideration.

Management practice and discharge outcome of patients with psychiatric disorder admitted to psychiatry wards of selected specialized settings in Ethiopia

BACKGROUND

Evidence on treatment practice, discharge outcomes, and associated factors in patients with psychiatric disorders are rarely discussed in Ethiopia. Results from the available studies are also seldom consistent and miss important factors, including treatment-related variables. Therefore, this study intended to describe management practice and discharge outcome among adult psychiatric patients admitted to psychiatry wards of selected specialized settings in Ethiopia. By pointing out associated factors, this study will also provide insight on targets to improve discharge outcomes.

PATIENTS AND METHODS

A cross-sectional study was conducted involving 278 adult psychiatry patients admitted to the psychiatry wards of Jimma Medical Center and St. Amanuel Mental Specialized Hospital in the study period from December 2021 to June 2022. The data was analyzed using STATA V.16. Descriptive statistics and logistic regression analysis were performed to present patient characteristics and identify factors associated with discharge outcome, respectively. In all the analysis, p value < 0.05 was used to declare statistical significance.

RESULTS

Schizophrenia (125, 44.96%) and bipolar disorders (98, 35.25%) were the top two psychiatric disorders diagnosed at admission. A greater share of patients with schizophrenia were treated with the combination of diazepam, haloperidol, and risperidone than with diazepam and risperidone, 14 (5.04%) each. Patients with bipolar disorder were being treated primarily with the combination of diazepam, risperidone, and sodium valproate, or risperidone and sodium valproate, 14 (5.04%) each. Overall, 232 (83.4%) patients were on psychiatric polypharmacy. In this study, 29 (10.43%) patients were discharged unimproved, and this risk was significantly higher in those patients with a khat chewing habit (AOR = 3.59, 95% CI = 1.21-10.65, P = 0.021) than non-chewers.

CONCLUSION

Psychiatric polypharmacy was found to be a common treatment approach in patients with psychiatric disorders. In the study, a little more than one-tenth of patients with psychiatric disorders were discharged without improvement. Hence, interventions targeting risk factors, especially khat use, should be undertaken to improve discharge outcomes in this population.

Reprioritising global mental health: psychoses in sub-Saharan Africa

Arthur Kleinman's 2009 Lancet commentary described global mental health as a "moral failure of humanity", asserting that priorities should be based not on the epidemiological and utilitarian economic arguments that tend to favour common mental health conditions like mild to moderate depression and anxiety, but rather on the human rights of those in the most vulnerable situations and the suffering that they experience. Yet more than a decade later, people with severe mental health conditions like psychoses are still being left behind. Here, we add to Kleinman's appeal a critical review of the literature on psychoses in sub-Saharan Africa, highlighting contradictions between local evidence and global narratives surrounding the burden of disease, the outcomes of schizophrenia, and the economic costs of mental health conditions. We identify numerous instances where the lack of regionally representative data and other methodological shortcomings undermine the conclusions of international research carried out to inform decision-making. Our findings point to the need not only for more research on psychoses in sub-Saharan Africa, but also for more representation and leadership in the conduct of research and in international priority-setting more broadly-especially by people with lived experience from diverse backgrounds. This paper aims to encourage debate about how this chronically under-resourced field, as part of wider conversations in global mental health, can be reprioritised.

Psychological Distress Increases 30-Fold Among People with HIV in the First Year on ART in Nigeria-a Call for Integrated Mental Health Services

BACKGROUND

Few studies have longitudinally assessed psychological distress among people with HIV (PWH) initiating ART in resource-limited settings.

METHOD

Baseline, 6-month, and 12-month psychological distress were measured in a Nigerian cohort newly initiating therapy; the relationship between baseline factors and psychological distress at 12 months was assessed; and the association between psychological distress at 12 months and care retention or immunologic failure was determined.

RESULTS

Among 563 patients, median age was 38 years (IQR: 33-46 years), 62% were female, and 51% were married. Psychological distress increased from 3% at baseline to 34% at 12 months. Age (aOR 1.28, 95% CI 1.06-1.56), female sex (aOR 2.89, 95% CI 1.93-4.33), lack of disclosure (aOR 4.32, 95% CI 2.48-7.51), and time on ART (6 months [aOR 6.91, 95% CI 3.14-15.18] and 12 months [aOR 32.63, 95% CI 16.54-64.36]) were associated with psychological distress while being married (OR 0.42, 95% CI 0.30-0.61) was associated with reduced odds. Tweve-month psychological distress was associated with increased risk of immunologic failure (aOR 2.22, 95% CI 1.31-3.82).

CONCLUSION

The risk of psychological distress increased 30-fold in the first year on therapy in PWH in Nigeria.

Correlates and prevalence of post-traumatic stress disorders in the São Paulo metropolitan area, Brazil

BACKGROUND

Post-traumatic stress disorder (PTSD) is a debilitating condition, which generates an extensive burden. We aimed to investigate in a huge metropolitan area, the prevalence of traumatic experiences, the development of PTSD, and its predictors.

METHODS

Traumatic experiences and PTSD were assessed in 5037 adult individuals of the general population. Cross-tabulations method assessed the prevalence of traumatic events and PTSD. Logistic regression models investigated predictors of lifetime and 12-month odds of PTSD and the conditional probability of developing PTSD for specific traumas.

RESULTS

Lifetime and 12-month diagnoses of PTSD were found in 3.2% and 1.6% of the sample. 'Witnessing anyone being injured or killed, or unexpectedly seeing a dead body' (35,7%) and 'being mugged or threatened with a weapon' (34.0%) were the two most reported traumas. The commonest events before PTSD onset were 'sudden unexpected death of a loved one' (34.0%), 'interpersonal violence' (31.0%), and 'threats to the physical integrity of others' (25.0%). Experiences related to "interpersonal violence" presented the highest conditional probability for PTSD (range 2.2-21.2%). Being 'sexually assaulted or molested' (21.2% total; 22.3% women; 0.0% men) and being 'raped' (18.8% total; 18.4% women; 20.1% men) were the two experiences with the highest odds for PTSD. While being female was a predictor of less exposure to any event (OR = 0.69), females were more prone to develop lifetime PTSD after exposure to an event (OR = 2.38).

CONCLUSION

Traumatic events are frequent in the general population and a small group of traumatic events accounts for most cases of subsequent PTSD.

Challenges in simultaneous validation of mental health screening tools in multiple languages: Adolescent assessments in Hausa and Pidgin in Nigeria

Background

With growing global recognition of the need to address mental health, a key challenge is determining who needs mental health services. Most self-report screening tools were developed in English-speaking high-income settings, and this cultural milieu influences the types and content of items, the manner in which items are asked, and the options for responding to items. Approaches have been developed for transcultural translation and validation. However, these approaches are typically applied in one language at a time, which is of limited utility in linguistically diverse settings.

Methods

To address challenges in cross-cultural validation, we undertook a unique process of simultaneously validating tools in two languages in Nigeria. Through this dual-language validation, we explored how cultural and contextual differences may influence what is considered valid for a mental health tool. We validated the Depression Self Rating Scale, Child PTSD Symptom Scale (CPSS), and Disruptive Behavior Disorders Rating Scale with a community sample of 330 adolescents aged 12-17. Validity was assessed in Hausa and Pidgin, two languages commonly spoken in Nigeria. Clinical psychologists used the Kiddie-Schedule for Affective Disorders and Schizophrenia to establish caseness.

Results

Most items had good discriminant validity, except on the CPSS, on which only 8 of 17 items discriminated by caseness. Findings indicate the influence of culture (e.g., linguistic differences in translatability of items) and context (e.g., items that reflect experiences of hunger or foodborne illness; different PTSD caseness by language might reflect differential trauma exposure between populations). We also identified items that operated differently between languages.

Conclusion

We identified shortcomings in cross-cultural validation procedures with regard to determining whether language, context, or or other differences influence performance of items. For future validation efforts, we recommend systematically collecting information on context and stressful/traumatic exposures as a way to contextualize interpretation of the validity findings.

Acronyms

Depression Self Rating Scale (DSRS), Child PTSD Symptom Scale (CPSS), Disruptive Behavior Disorders Rating Scale (DBDRS), Oppositional Defiant Disorder (ODD), Conduct Disorder (CD), Area Under the Curve (AUC), Diagnostic Odds Ratio (DOR), Low- and Middle-Income Countries (LMICs), Posttraumatic Stress Disorder (PTSD).

Effects of COVID-19-related psychological distress and anxiety on quality of sleep and life in healthcare workers in Iran and three European countries

Introduction

The COVID-19 pandemic has considerably affected human beings most of whom are healthcare workers (HCWs) combating the disease in the front line.

Methods

This cross-sectional study aims to explore the effects of stress and anxiety caused by COVID-19 on the quality of sleep and life in HCWs, including physicians, nurses, and other healthcare staff. In this global study, we asked 1,210 HCWs (620 and 590 volunteers from Iran and European countries, including Germany, the Netherlands, and Italy, respectively), who age 21-70, to participate in the test. Several measures of COVID-related stress, anxiety, sleep, and life quality, including the 12-item General Health Questionnaire (GHQ-12), Fear of COVID-19 scale (FCV-19S), Beck Anxiety Inventory (BAI), the Pittsburgh Sleep Quality Index (PSQI), and World Health Organization Quality of Life-BREF (WHOQOL-BREF) are recorded.

Results

Volunteers reported high rates of stress and anxiety and poor sleep quality as well as lower quality of life. The correlation analysis between the measures is reported. According to the results, regardless of the location, HCWs, predominantly female nurses, developed anxiety and stress symptoms which consequently resulted in lower sleep and life quality. Both for Iranian and the European HCWs, significant differences existed between nurses and the other two groups, with the p-values equal to 0.0357 and 0.0429 for GHQ-12, 0.0368, and 0.714 for BAI measure. Even though nurses reported the most stress, anxiety, fear of COVID-19, lower quality of life and sleep in both countries, and also an increase in other measures as well, there existed no statistically significant difference in FCV-19S, PSQI, and WHOQOL-BREF.

Discussion

This study helps to expand our knowledge the effects of pandemics on HCWs and also for healthcare management to predict HCW's mental health conditions in similar situations.

Transforming access to care for serious mental disorders in slums (the TRANSFORM Project): rationale, design and protocol

This paper introduces the TRANSFORM project, which aims to improve access to mental health services for people with serious and enduring mental disorders (SMDs - psychotic disorders and severe mood disorders, often with co-occurring substance misuse) living in urban slums in Dhaka (Bangladesh) and Ibadan (Nigeria). People living in slum communities have high rates of SMDs, limited access to mental health services and conditions of chronic hardship. Help is commonly sought from faith-based and traditional healers, but people with SMDs require medical treatment, support and follow-up. This multicentre, international mental health mixed-methods research project will (a) conduct community-based ethnographic assessment using participatory methods to explore community understandings of SMDs and help-seeking; (b) explore the role of traditional and faith-based healing for SMDs, from the perspectives of people with SMDs, caregivers, community members, healers, community health workers (CHWs) and health professionals; (c) co-design, with CHWs and healers, training packages for screening, early detection and referral to mental health services; and (d) implement and evaluate the training packages for clinical and cost-effectiveness in improving access to treatment for those with SMDs. TRANSFORM will develop and test a sustainable intervention that can be integrated into existing clinical care and inform priorities for healthcare providers and policy makers.

Role of traditional beliefs in the knowledge and perceptions of mental health and illness amongst rural-dwelling women in western Nigeria

Background

Globally, the public health importance of mental health has gained significant attention in recent years. In Africa, many traditional belief systems impact the perceptions, attitude and management of mental illness. Women are usually the primary caregivers of mentally ill persons, but they have lower mental health literacy.

Aim

To assess rural women’s knowledge, perceptions and attitudes regarding mental illnesses and the role of traditional beliefs in their management.

Setting

Epe Local Government Area of Lagos State, Nigeria.

Methods

This was a cross-sectional study with a total of 295 rural women recruited through a multistage sampling method. A pretested interviewer-administered questionnaire was used to collect data. Summary and inferential statistics were measured using Epi Info version 7. The level of significance was predetermined at 5%.

Results

A total of 253 questionnaires were adequately filled and analysed. Overall, just over one-third (35%) of respondents had good knowledge and only 26% had positive attitudes towards mental health and illness. About 45% reported that mental illness should first be treated in ‘the traditional way’, whilst 47% felt that there was no need for collaboration between orthodox and unorthodox healthcare for mental illness. Sociodemographic variables were significantly associated with knowledge (educational level p = 0.001) and attitude (marital status p = 0.001 and ethnicity p = 0.001).

Conclusion

Respondents had poor knowledge of and attitude towards mental health, and traditional beliefs played a role in their perception and management of mental illness. We recommend community-based health education programmes to improve knowledge and help-seeking for mental illness amongst rural women.

Nigeria's mental health and substance abuse bill 2019: Analysis of its compliance with the United Nations convention on the rights of persons with disabilities

Countries are struggling with reconciling their national mental health legislation with the CRPD approach, which stresses equality as the focal point of legislation, policies, and practices that affect people with disabilities. Several failed attempts have been made over the last two decades to update Nigeria's obsolete mental health legislation. The most recent attempt is the Mental Health and Substance abuse Bill 2019, which aims to protect the rights of people with mental health needs. It addresses many areas neglected by previous bills, such as non-discrimination of people with mental and substance use problems in the exercise of their civil, political, economic, social, full employment, religious, educational, and cultural rights. It categorically prohibits the use of seclusion in the treatment of people with mental health problems, makes provision for service users to be members of the Mental health review tribunal and allows for the protection of privacy and confidentiality of information about people with mental health problems. While keeping to most of WHO's recommendations for mental health legislation, the bill diverges from the CRPD's recommendations by allowing forced admission and treatment based on mental capacity, substitute decision-making by legal representatives or closest relatives, and non-prohibition of coercive practices. The bill does not make provisions for advance directives and is silent on informed consent to participate in research. Despite the bill's deficiencies, it would be a significant step forward for the country, whose current mental health legislation is the Lunacy Act of 1958. Although the CRPD has left it unclear how countries, especially low resource countries, should go about creating a workable legal framework, it is clear that all countries are expected to join the current global effort to eliminate, or at least reduce to the barest minimum, the use of coercion in mental health care. We expect that future revisions of this bill will examine its limitations in light of Nigeria's socio-cultural context.

Depression in Sub-Saharan Africa

Mood disorders can be considered among the most common and debilitating mental disorders. Major depression, as an example of mood disorders, is known to severely reduce the quality of life as well as psychosocial functioning of those affected. Its impact on the burden of disease worldwide has been enormous, with the World Health Organisation projecting depression to be the leading cause of mental illness by 2030. Despite several studies on the subject, little has been done to contextualise the condition in Africa, coupled with the fact that there is still much to be understood on the subject. This review attempts to shed more light on the prevalence of depression in Sub-Saharan Africa (SSA), its pathophysiology, risk factors, diagnosis and the experimental models available to study depression within the sub-region. It also evaluates the contribution of the sub-region to the global research output of depression as well as bottlenecks associated with full exploitation of the sub region's resources to manage the disorder.

Depression and quality of life among pregnant women in first and third trimesters in Abeokuta: A comparative study

Background

Pregnancy is a dynamic time during which a woman’s emotional state may undergo extensive change. There have been conflicting views about the magnitude of emotional turmoil that occurs during pregnancy. Some investigators suggest that pregnancy is a time of particularly good psychological adjustment; others have reported high levels of psychological challenge.

Aim

Our study aimed to compare the prevalence and correlates of depression in the first and third trimesters of pregnancy and to determine the relationship between quality of life and depressive disorder.

Setting

The antenatal clinic of the State Hospital, Ijaiye.

Method

A descriptive, comparative study of depressive disorder and the quality of life between first- and third-trimester pregnant women (confirmed through a pregnancy test and an abdominopelvic ultrasound).

Result

For each trimester, 285 participants were recruited. The prevalence of depression among the pregnant women who participated in the study was 7.2%. In the first trimester of pregnancy, the prevalence of depression was 30 (10.5%), while it was 11 (3.9%) in the third trimester of pregnancy. Collectively, the relationship between depression and QoL was significant in the overall domain, satisfaction with general health domain (t = 2.27; p = 0.03), psychological domain (t = 2.74; p = 0.010, and environmental domain (t = 4.57; p ≤ 0.01).

Conclusion

Our study also highlights the need to pay closer attention to the psychological well-being and quality of life of all pregnant women and not just on their physical health and the baby’s well-being.

Integrating mental health into primary care: evaluation of the Health Action for Psychiatric Problems In Nigeria including Epilepsy and SubstanceS (HAPPINESS) pilot project

Background

The Health Action for Psychiatric Problems In Nigeria including Epilepsy and SubstanceS (HAPPINESS) project trains non-specialist and primary health care workers in Imo State, Nigeria. This project adapted the World Health Organization’s Mental Health Gap Action Programme-Intervention Guide (mhGAP-IG), emphasizing stigma reduction among trainees. This convergent mixed-methods proof-of-concept study evaluates the HAPPINESS pilot project mhGAP-IG training’s impact on mental illness stigma among trainees and barriers, facilitators, and opportunities to consider for project improvement.

Methods

Trainees (n = 13) completed a 43-item questionnaire before and after their 5-day training to assess perceptions of mental disorders and attitudes towards people with mental illness. These responses were analyzed using paired-sample t-tests for four subscales of the questionnaire: acceptance of socializing with people with mental illness, normalizing activities and relationships with people with mental illness, supernatural causation of mental illness, and endorsement of a biopsychosocial approach to mental illness. Semi-structured key informant interviews (n = 11) with trainees, trainers, and local health officials who participated in or supported the HAPPINESS project were thematically analyzed to understand their experiences and perspectives of the project’s barriers, facilitators, and opportunities.

Results

Trainees showed significant improvements on socializing, normalizing, and supernatural causation subscales of the stigma questionnaire (p < 0.05). No significant effect was seen on the biopsychosocial subscale; however, evidence of biopsychosocial beliefs was found in interview responses. Key informant interviews revealed that the HAPPINESS project enhanced trainees’ diagnostic and treatment abilities, mental health awareness, and empathy towards patients. Misinformation, stigma, inadequate funding, and lack of road access to clinics were identified as barriers to mental health care integration into general care in Imo State. Respondents also suggested ways that the HAPPINESS project could be improved and expanded in the future.

Conclusions

This study adds to the limited evidence on the implementation of mhGAP-IG in Nigeria. Using mixed methods, it evaluates how mhGAP-IG can impact perceptions and knowledge of stigma among primary care trainees. It also highlights barriers, facilitators, and opportunities to consider for project growth. Future efforts should focus on clinical support, supervision, health outcomes, as well as scaling up and assessing the cost-effectiveness of the HAPPINESS project intervention.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12913-022-07703-1.

Magnitude of common mental disorders and factors associated among people living in Addis Ababa Ethiopia 2018: community based cross-sectional study

BACKGROUND

Common mental disorders are a group of distress states manifesting with anxiety, depressive and unexplained somatic symptoms, affecting individuals in different age groups, causes suffering to the individuals, families and community.

OBJECTIVE

This study assessed the magnitude of Common mental disorder and associated factors among people living in Addis Ababa, Ethiopia.

METHODS

Community based cross sectional study design was conducted from November 1 to 30, 2018 among people living in Addis Ababa, Ethiopia. Multistage sampling technique was used to get a total of 755 samples. Common Mental Disorder was assessed through interview using Self-Reported questionnaire (SRQ-20). The collected data were coded, entered into EPI-Info 7 and analysed by using SPPS version 20. Descriptive, analytical statistical procedure; bivariate and multivariate binary logistic regressions with odds ratios and 95% confidence interval was employed. The statistical significance was accepted at p value < 0.05.

RESULT

In this study a total of 723 study subjects were participated, with response rate of 95.7%.The prevalence of common mental disorders was 24.7% with [95%CI; 21.6 - 27.7]. Females (AOR=2.1; 95% CI; 1.39- 3.23), Divorced/widowed (AOR=2.55; 95% CI; 1.16- 5.59), daily labourers (AOR=2.52; 95% CI; 1.3- 4.88, chronic medical illness (AOR=4.5; 95% CI; 2.46- 8.24). are independent predictors of CMD and educational status (primary, secondary and diploma) was positively associated with CMD. in this study. Regarding education (primary, secondary and diploma) (AOR=0.34; 95% CI; 0.17-0.66) and (AOR=0.35; 95% CI; 0.19-0.67) has positively associated with common mental disorders.

CONCLUSION

The prevalence of common mental disorders was found high. Female sex, marital status like Divorced/Widowed, daily labour workers and chronic medical illness were found to be independent predictors of CMD and educational status (primary, secondary school and diploma holders) was were found to be protective factors.

The relationship between protective factors and common mental disorders among female urban slum dwellers in Ibadan, Nigeria

BACKGROUND

On the African continent, many people live in conditions of adversity known to be associated with the onset of mental disorders, yet not all develop a mental disorder. The prevalence of common mental disorders such as depression and anxiety in the general population of Nigeria is comparatively low. Prevalence data of mental disorders in slum settings in Nigeria is sparse. There is a need to better understand the relationship between protective factors and the occurrence of common mental disorders in the Nigerian slum context. This study aimed to describe the relationship between protective factors and the occurrence of common mental disorders among female urban slum dwellers in Ibadan, Nigeria.

METHODS AND FINDINGS

A cross sectional household survey of 550 women was conducted in slum settlements in Ibadan, Nigeria. Interviewer administered questionnaires were completed to elicit information on protective factors (social connectedness, self-esteem, social support, resilience) and common mental disorders (depression, anxiety and stress). The DASS-21 was used to measure common mental disorders and protective factors were measured using the Social Connectedness Scale, Multidimensional Scale of Perceived Social Support, Resilience scale and the Rosenberg Self Esteem Scale. A multivariable logistic regression model was employed to examine associations while adjusting for relevant confounders. Common mental disorders were reported by 14.0% of the respondents. Resilience and social support were found to be protective against reporting symptoms of common mental disorders. Women who reported higher levels of social support and resilience were less likely to report common mental disorders (OR:0.96, 95% CI 0.93, 0.98) and (OR:0.95, 95% CI 0.91, 0.99) respectively. Women who were 65 years and older were also less likely to report the occurrence of common mental disorders (OR:0.38, 95% CI 0.15, 0.98) compared to those aged 18-34 years.

CONCLUSION

Social support and resilience appear to be protective against common mental disorders among these respondents. Further research should be conducted to explore the pathways through which protective factors reduce the likelihood of the occurrence of common mental disorders. This would be important in the development of mental health interventions.

Anxiety and somatization: prevalence and correlates of mental health in older people (60+ years) in Botswana

OBJECTIVE

This study explored key factors that influence mental health in older people in Botswana. The prevalence of anxiety and somatization in the elderly population was also calculated.

METHODS

A cross-sectional study stratified by district was done to collect information on the elderly (N = 378; age: M = 71.8, SD = 9.1). The Patient Health Questionnaire (PHQ) and generalized anxiety disorder (GAD-7) measures were used to collect data on the outcome variables (somatization and anxiety). Bivariate and multivariate analyses were used to investigate the associations among the predictor variables and each of the outcome variables.

RESULTS

The prevalence of anxiety and somatization in older people was 18.6% and 25.3%. The correlates significantly associated with somatization in the final model after adjusting for all influencing factors were: area of residence (rural) (OR: 2.5, 95% CI: 1.4-5), self-perceived health, non-medication use, self-esteem, and mastery. With regards to anxiety, non-medication use (OR: 0.2, 95% CI: 0-0.9), lack of social support, low self-esteem (OR: 3.6, 95% CI: 1.6 - 9.4), and poor QOL (OR: 0.46, 95% CI: 0.2-0.9) were significantly associated with anxiety.

CONCLUSIONS

Eradicating poverty, provision of services, promoting positive emotions, changing health perceptions and QOL may augment mental health in older people.

People living with mental disorder in Nigeria amidst COVID-19: Challenges, implications, and recommendations

COVID‐19 has become a global public health obstacle. This disease has caused negligence on mental health institutions, decreased trust in the healthcare system and traditional and religious beliefs, and has created a widespread stigma on people living with mental health illness, specifically in Nigeria. The increase of COVID‐19 cases that have exhausted the healthcare system in Nigeria have brought further negligence to people living with mental disorder, thus increasing the burden of the disease on these patients. Overall, this article considerably highlighted the need for equal accessibility to healthcare resources, as well as the requirement of proper attention and care for mental health patients in Nigeria. This article discusses the challenges that surfaced because of the COVID‐19 pandemic on people living with mental illness and their implications, as well as suggesting necessary actions and recommendations.

In Nigeria, only about 15% of patients with severe mental illnesses have access to mental health care.

In Nigeria, the COVID‐19 pandemic has caused negligence on mental health institutions and created a widespread stigma on people living with mental health illnesses.

People in Nigeria lack basic understanding about mental health illnesses and have various misconceptions for its underlying causes.

It is critical to strengthen Nigeria's health‐care system, particularly during COVID‐19, by devising measures to improve mental health literacy and change stigmatizing attitudes at both the institutional and community levels.

Prevalence and factors associated with depression among medical students in Nigeria

Background

Depression among medical students has been partly attributed to the nature of medical education, and may lead to poor academic and professional adjustment. The objectives of the study were to assess the prevalence of depression and its relationship to socio-demographic and clinical risk factors among medical students of Bayero University in Kano, Nigeria.

Methodology

A descriptive cross-sectional study was performed. Two hundred and seventy-nine medical students were selected using a multi-stage sampling technique. The respondents were given a self-reporting questionnaire, which included sociodemographic details and 3-item Oslo Social Support Rating Scale. Depression was assessed using the Mini-International Neuropsychiatric Interview (7.0).

Results

The prevalence of depression among medical students was 15.1%. Depression was more in females, <22 years, those at the lower level of study, poor social support, family history of depression and history of depression. After logistic regression, only being female (P = 0.008) and history of depression (P = 0.007) differentiated medical students with depression from those with no depression with odds ratio (OR) of 2.88 (95% confidence interval [CI] = [1.31, 6.33]) and OR of 2.79 (95% CI = [1.33, 5.84]), respectively. There was no association between depression and poor financial state (P = 0.175), self-reported academic performance (P = 0.719) and use of psychoactive substances (P = 0.311).

Conclusion

Depression is an important condition among medical students in Nigeria. There is a need to help students with mental health challenges by providing preventive measures, early identification and treatment mechanisms in medical schools in the country.

Psychological distress and sleep problems in healthcare workers in a developing context during COVID-19 pandemic: Implications for workplace wellbeing

BACKGROUND

Emotional wellbeing of healthcare workers is critical to the quality of patient care, and effective function of health services. The corona virus disease-2019 (COVID-19) pandemic exerted unique physical and emotional demands on healthcare workers, however little is known about the emotional wellbeing of healthcare workers during the COVID-19 pandemic in resource-restricted settings. This study investigated the prevalence of psychological distress, and sleep problems in healthcare workers in a COVID-19 referral hospital in Nigeria.

METHODS

A total of 303 healthcare workers were interviewed with the 12-item General Health Questionnaire (GHQ-12) to evaluate psychological distress, and the Pittsburgh Sleep Quality Index (PSQI) to assess multidimensional aspects of sleep, including quality, latency, duration, habitual efficiency, disturbances, use of sleeping medications and daytime dysfunction.

RESULTS

The participants were mostly males, 183(60.4%) and mean age was 38.8(SD = 8.9) years. Most of the participants were married (70.3%), had spent less than 10 years in service (72.9%), and had no medical comorbidity (92.1%). The prevalence of psychological distress was 23.4%, and six in every ten participants reported sleep problems. The largest proportion of participants reported difficulty in sleep latency (81.5%), duration (71.3%), and daytime dysfunction (69.6%), while approximately one third (32%) each reported using sleep medication, and had difficulty with sleep quality. Psychological distress was inter-related with poor sleep problems (p = 0.001; effect size = 0.2).

CONCLUSION

The prevalence rates of psychological distress and sleep problems during the COVID-19 pandemic were several folds the rates previously reported in similar contexts. Preventative psychosocial support services for healthcare workers are indicated. The creation of a culturally-sensitive interdisciplinary blueprint for locally-viable actions model are strongly suggested ahead of future emergency situations.

The epidemiology of psychiatric disorders in Africa: a scoping review

This scoping review of population-based epidemiological studies was done to provide background information on the prevalences and distribution of psychiatric disorders in Africa for calls to broaden diversity in psychiatric genetic studies. We searched PubMed, EMBASE, and Web of Science to retrieve relevant literature in English, French, and Portuguese from Jan 1, 1984, to Aug 18, 2020. In 36 studies from 12 African countries, the lifetime prevalence ranged from 3·3% to 9·8% for mood disorders, from 5·7% to 15·8% for anxiety disorders, from 3·7% to 13·3% for substance use disorders, and from 1·0% to 4·4% for psychotic disorders. Although the prevalence of mood and anxiety disorders appears to be lower than that observed in research outside the continent, we identified similar distributions by gender, although not by age or urbanicity. This review reveals gaps in epidemiological research on psychiatric disorders and opportunities to leverage existing epidemiological and genetic research within Africa to advance our understanding of psychiatric disorders. Studies that are methodologically comparable but diverse in geographical context are needed to advance psychiatric epidemiology and provide a foundation for understanding environmental risk in genetic studies of diverse populations globally.

Association between mental health, caries experience and gingival health of adolescents in sub-urban Nigeria

Background

This study assessed the association of mental health problems and risk indicators of mental health problems with caries experience and moderate/severe gingivitis in adolescents.

Methods

A cross-sectional household survey was conducted in Osun State, Nigeria. Data collected from 10 to 19-years-old adolescents between December 2018 and January 2019 were sociodemographic variables (age, sex, socioeconomic status); oral health indicators (tooth brushing, use of fluoridated toothpaste, consumption of refined carbohydrates in-between-meals, dental services utilization, dental anxiety and plaque); mental health indicators (smoking habits, intake of alcohol and use of psychoactive drugs) and mental health problems (low and high). Gingival health (healthy gingiva/mild gingivitis versus moderate/severe gingivitis) and caries experience (present or absent) were also assessed. A series of five logistic regression models were constructed to determine the association between presence of caries experience and presence of moderate/severe gingivitis) with blocks of independent variables. The blocks were: model 1—sociodemographic factors; model 2—oral health indicators; model 3—mental health indicators and model 4—mental health problems. Model 5 included all factors from models 1 to 4.

Results

There were 1234 adolescents with a mean (SD) age of 14.6 (2.7) years. Also, 21.1% of participants had high risk of mental health problems, 3.7% had caries experience, and 8.1% had moderate/severe gingivitis. Model 5 had the best fit for the two dependent variables. The use of psychoactive substances (AOR 2.67; 95% CI 1.14, 6.26) was associated with significantly higher odds of caries experience. The frequent consumption of refined carbohydrates in-between-meals (AOR: 0.41; 95% CI 0.25, 0.66) and severe dental anxiety (AOR0.48; 95% CI 0.23, 0.99) were associated with significantly lower odds of moderate/severe gingivitis. Plaque was associated with significant higher odds of moderate/severe gingivitis (AOR 13.50; 95% CI 8.66, 21.04). High risk of mental health problems was not significantly associated with caries experience (AOR 1.84; 95% CI 0.97, 3.49) or moderate/severe gingivitis (AOR 0.80; 95% CI 0.45, 1.44).

Conclusion

The association between mental problems and risk indicators with oral diseases in Nigerian adolescents indicates a need for integrated mental and oral health care to improve the wellbeing of adolescents.

Posttraumatic stress disorder and psycho-social impairment following snakebite in Northeastern Nigeria

BACKGROUND

Snakebite is a major public health problem among impoverished rural populations causing considerable morbidity and mortality in West Africa. Despite the huge burden of snakebite in this region, psycho-social impairment following snakebite has not been evaluated. In this study, we assessed for features of posttraumatic stress disorder and psycho-social impairment among rural snakebite victims in Northeastern Nigeria.

METHODS

Individuals with previous snakebite managed in our facility, defined as exposed to snakebite, and their matched relatives not exposed to snakebite were invited to participate in the study following community mobilization. A retrospective cohort study was conducted evaluating the presence of psycho-social functioning, posttraumatic stress disorder, quality of life, social disability, cognitive impairment, and psychological morbidity using standard tools administered by the investigators, trained nurses, and community health workers.

RESULTS

The prevalence of features of posttraumatic stress disorder among those exposed to snakebite compared to those not exposed to snakebite was 43% and 28%, respectively (risk ratio = 1.53; 95% confidence interval: 1.04-2.24; p = 0.024). Subjects exposed to snakebite had significantly poorer quality of life score in the psychological and social domains (p < 0.05). Other psycho-social complications associated with snakebite were impaired family/school functioning and psychological morbidity. No difference in cognitive functioning was observed between the two groups.

CONCLUSIONS

Snakebite is complicated by features of posttraumatic stress disorder, poor quality of life, and psycho-social impairments in northeastern Nigeria. Detection, monitoring, and appropriate management interventions should be provided and made more accessible to snakebite victims to ameliorate mental and psychological impairment.

Utilizing a church-based platform for mental health interventions: exploring the role of the clergy and the treatment preference of women with depression

BACKGROUND

Training lay people to deliver mental health interventions in the community can be an effective strategy to mitigate mental health manpower shortages in low- and middle-income countries. The healthy beginning initiative (HBI) is a congregation-based platform that uses this approach to train church-based lay health advisors to conduct mental health screening in community churches and link people to care. This paper explores the potential for a clergy-delivered therapy for mental disorders on the HBI platform and identifies the treatment preferences of women diagnosed with depression.

METHODS

We conducted focus group discussion and free-listing exercise with 13 catholic clergy in churches that participated in HBI in Enugu, Nigeria. These exercises, guided by the positive, existential, or negative (PEN-3) cultural model, explored their role in HBI, their beliefs about mental disorders, and their willingness to be trained to deliver therapy for mental disorders. We surveyed women diagnosed with depression in the same environment to understand their health-seeking behavior and treatment preferences. The development of the survey was guided by the health belief model.

RESULTS

The clergy valued their role in HBI, expressed understanding of the bio-psycho-socio-spiritual model of mental disorders, and were willing to be trained to provide therapy for depression. Majority of the women surveyed preferred to receive therapy from trained clergy (92.9%), followed by a psychiatrist (89.3%), and psychologist (85.7%).

CONCLUSION

These findings support a potential clergy-focused, faith-informed adaptation of therapy for common mental disorders anchored in community churches to increase access to treatment in a resource-limited setting.

Distress, desperation and despair: anxiety, depression and suicidality among rural South African youth

Common mental disorders (CMDs) affect millions of people worldwide and impose a high cost to individuals and society. Youth are disproportionately affected, as has also been confirmed in South Africa. Mental disorders and substance use disorders often occur as concurrent disorders. Although youth in rural South Africa grow up in difficult social and economic conditions, the study of mental disorders in South Africa has focussed primarily on urban populations. One such rural area in South Africa is the Harry Gwala District, where rates of interpersonal violence and self-inflicted injuries among 15-24-year-old men, are extraordinarily high. Suicide is an important proxy measure of severe emotional distress, predominantly depression and hopelessness. This study reports on rates of fatal self-harm among 15-24-year-old men in the Harry Gwala District. We determined the rates and severity of CMDs and their correlates among 355 young males ranging in age from 14 to 24 years in the Harry Gwala District community. High rates of depression, anxiety, hopelessness and worthlessness were reported. One in four of the young men and boys reported current suicidal thoughts associated with depression, anxiety, feelings of worthlessness and binge drinking. Reports of alcohol use were high, as were those of daily cannabis use. Our findings show high rates of CMDs and alcohol use, and highlight the impact of collective dysphoria on the mental well-being of rural youth in South Africa, who are likely coping through drug and alcohol use.

The prevalence of PTSD, major depression and anxiety symptoms among high-risk public transportation workers

OBJECTIVE

Public transportation workers are exposed to higher levels of stress related to accidents, injuries, and person-under-train events when compared to other workers. This systematic review integrates the existing literature on mental health among high-risk public transportation workers to estimate the prevalence of post-traumatic stress disorder (PTSD), major depressive and anxiety symptoms following critical incidents while on duty.

METHODS

This systematic review is part of a larger systematic review which examines mental health and work outcomes of individuals working in professions at high risk of critical incident exposure, i.e., high-risk professions. Articles were included if they measured the prevalence of PTSD, Major Depressive Disorder (MDD) and Anxiety Disorder (AD) in a transportation population following exposure to a major incident, for example, a person-under-a-train.

RESULTS

Among the ten articles, all reported prevalence of PTSD which ranged from 0.73 to 29.9%. Four articles reported prevalence of depression among transportation workers exposed to a critical incident and prevalence outcomes ranged from 0.05 to 16.3%. Only two reported prevalence of anxiety from 1.3 to 13.9%.

CONCLUSIONS

This literature reports that transportation workers are prone to involvement in traumatic accidents leading to higher rates of PTSD compared to the general population. Strategies to reduce transportation accidents and to provide transportation workers follow-up mental health support is needed for this vulnerable population.

Prevalence and Pattern of Psychiatric Morbidity Among Community-Dwelling Elderly Populations in Abeokuta, Nigeria

BACKGROUND

Many elderly persons in Nigeria are having mental health challenges and there is a lack of commensurate increase in services to attend to such.

AIM

To assess the prevalence, pattern and correlates of psychiatric morbidity among community dwelling elderly persons (≥ 60 years) in Abeokuta, Nigeria.

METHODS

532 respondents were selected using a multistage, stratified cluster sampling method from the elderly population in Abeokuta. First, participants were administered the socio-demographic questionnaire, General Health Questionnaire-12 (GHQ-12), and the Mini-Mental State Examination (MMSE). Those with a score of ≥ 3 in GHQ-12 were assessed with the Mini International Neuropsychiatric Interview (MINI PLUS), while those with ≤ 16 in MMSE were assessed with the Diagnostic Statistical Manual (DSM) IV criteria for Dementia and the Petersen's criteria for Mild Cognitive Impairment (MCI).

RESULTS

36.3% of the respondents had a probable psychological disorder, while 25.4% had a probable cognitive impairment. 9.8% had a current definitive psychiatric disorder. The commonest disorders were major depressive disorder and dementia. The female gender, the oldest old (≥ 80 years), having a chronic medical illness and bereavement in the last 1 year were most significantly associated with having mental health problems.

CONCLUSION

A significant number of the elderly population in the studied community suffers from a psychiatric illness. It is hoped that studies as these will inform stakeholders on the need to pay closer attention to the mental health needs of the elderly, as their overall wellbeing plays a role in determining the overall health of the community.

Depression and experience of incarceration in North Central Nigeria: a situation analysis at Makurdi medium security prison

Background

Human rights watchdogs have described conditions in Nigerian correctional facilities and detention centers as damaging to the physical and mental health of inmates. While the prevalence of mental disorders is high, access to appropriate healthcare is grossly inadequate. Understanding the current state of prison inmates’ mental health and well-being is an essential first step to addressing this important issue. This study aims to document the mental health and experiences of incarceration of inmates of the largest medium security prison in Nigeria’s Benue State.

Methods

A cross-sectional survey and descriptive analysis was carried out with a random sample of 381 prison inmates of Benue State Makurdi Medium Security Prison. Survey tools included: (1) a structured questionnaire on participants’ experiences in prison, and (2) the Patient Health Questionnaire (PHQ-9), a screening tool for depression.

Results

Most participants were young men (95.5%, mean age 27.95) and had completed secondary school (63.5%). While prison authorities had identified only 27 participants as having a mental disorder, 144 (37.8%) screened positive for depression. Twenty six had received professional counseling while in prison. Of the six participants who were already taking a psychotropic medication at the time of imprisonment, four received medication after being imprisoned. Approximately half, (52%) of participants were dissatisfied with prison health care.

Conclusions

Despite the high prevalence of depression among prison inmates, few cases are detected and treated. Prison staff may not recognize depression as a mental disorder, and the mental health care available is generally poor. Inadequate mental health and social care not only affects prison inmates’ well-being, but may also impact recidivism and health outcomes upon release. Prison inmates should be screened routinely for depression and other less-commonly recognized mental health conditions, and appropriate treatment made available.

Predictors and prognoses of new onset post-stroke anxiety at one year in black Africans

BACKGROUND

There is relatively limited information on the risk factors and outcome of new onset Poststroke Anxiety (PSA) in Low- and Middle-Income Countries. We estimated incidence, cumulative incidence, risk factors and outcome of new onset anxiety in the first year of stroke among African stroke survivors.

METHODS

We analyzed the dataset of a completed clinical trial comprising patients enrolled to test an intervention designed to improve one-year blood pressure control among recent (≤ one month) stroke survivors in Nigeria. Anxiety was measured using the Hospital Anxiety and Depression Scale. Outcomes were assessed using the modified Rankin Scale (mRS), Community screening instrument for dementia (CSID) and Health Related Quality of Life in Stroke Patients (HRQOLISP-26).

RESULTS

Among 322 stroke survivors who were free of anxiety at baseline, we found a one-year cumulative incidence of 34% (95% CI = 28.6-39.3). Rates were 36.2% (95% CI =29.6-42.7) for men and 29.2% (95% CI =19.9-38.3) for women. In multivariate Cox regression analyses, haemorrhagic stroke type was associated with higher risk of new onset PSA (Hazard Ratio=1.52, 95% CI =1.01-2.29). New onset PSA was independently associated with cognitive [(mean difference (MD) in CSID scores=1.1, 95% C.I=0.2, 1.9)] and motor decline (MD in mRS scores= -0.2, 95% C.I= -0.4, -0.02), as well as poorer quality of life overtime (MD in total HRQOLISP-26 scores=3.6, 95% C.I=1.0, 6.2).

CONCLUSION

One in 3 stroke survivors in Nigeria had PSA at one year. Clinicians in SSA should pay special attention to survivors of haemorrhagic stroke as they are at higher risk of incident anxiety and therefore its consequences.

National and regional prevalence of posttraumatic stress disorder in sub-Saharan Africa: A systematic review and meta-analysis

BACKGROUND

People living in sub-Saharan Africa (SSA) are disproportionately exposed to trauma and may be at increased risk for posttraumatic stress disorder (PTSD). However, a dearth of population-level representative data from SSA is a barrier to assessing PTSD. This manuscript sought to calculate pooled PTSD prevalence estimates from nationally and regionally representative surveys in SSA.

METHODS AND FINDINGS

The search was conducted in PubMed, Embase, PsycINFO, and PTSDpubs and was last run between October 18, 2019, and November 11, 2019. We included studies that were published in peer-reviewed journals; used probabilistic sampling methods and systematic PTSD assessments; and included ≥ 450 participants who were current residents of an SSA country, at least 50% of whom were aged between 15 and 65 years. The primary outcomes were point prevalence estimates of PTSD across all studies, and then within subgroups. The protocol was registered with the International Prospective Register of Systematic Reviews (PROSPERO) (registration number CRD42016029441). Out of 2,825 unique articles reviewed, 25 studies including a total of 58,887 eligible participants (54% female) in 10 out of the 48 countries in SSA were identified. Most studies enrolled any adult aged 18 years or older. However, some studies only enrolled specific age brackets or persons as young as 15 years old. Six studies were national surveys, and 19 were regional. There were 4 key findings in the meta-analysis: (1) the overall pooled prevalence of probable PTSD was 22% (95% CI 13%-32%), while the current prevalence-defined as 1 week to 1 month-was 25% (95% CI 16%-36%); (2) prevalence estimates were highly variable, ranging from 0% (95% CI 0%-0%) to 74% (95% CI 72%-76%); (3) conflict-unexposed regions had a pooled prevalence of probable PTSD of 8% (95% CI 3%-15%), while conflict-exposed regions had a pooled prevalence of probable PTSD of 30% (95% CI 21%-40%; p < 0.001); and (4) there was no significant difference in the pooled prevalence of PTSD for men and women. The primary limitations of our methodology are our exclusion of the following study types: those published in languages other than English, French, and Portuguese; smaller studies; those that focused on key populations; those that reported only on continuous measures of PTSD symptoms; and unpublished or non-peer-reviewed studies.

CONCLUSIONS

In this study, PTSD symptoms consistent with a probable diagnosis were found to be common in SSA, especially in regions exposed to armed conflict. However, these studies only represent data from 10 of the 48 SSA countries, and only 6 studies provided national-level data. Given the enormous heterogeneity expected across the continent, and also within countries and regions, this review cannot speak to rates of PTSD in any regions not included in this review. Thus, substantial gaps in our knowledge of PTSD prevalence in SSA remain. More research on population-level prevalence is needed to determine the burden of trauma symptoms and PTSD in SSA and to identify acceptable and feasible approaches to address this burden given limited mental healthcare resources.

Prevalence of Potentially Traumatic Events, Other Life Events and Subsequent Reactions Indicative for Posttraumatic Stress Disorder in the Netherlands: A General Population Study Based on the Trauma Screening Questionnaire

The 12-month and lifetime prevalence of posttraumatic stress disorder (PTSD) in different country populations has been assessed while using clinical interviews. Because this methodology is relatively time-consuming and resource-intensive, disaster health researchers adopted instruments, like the Trauma Screening Questionnaire (TSQ). This study (1) used the TSQ to estimate the lifetime prevalence of potentially traumatic events and other life events (PTE/OLEs) and the one-week prevalence of subsequent reactions indicative for PTSD (based on DSM-IV PTSD criteria) in The Netherlands and (2) investigated risk and protective factors for the development of PTSD to overcome the lack of baseline comparison data on general populations and subgroups. The data were derived from the Netherlands Mental Health Survey and Incidence Study-2 (NEMESIS-2), a representative study in the Dutch general population aged 18 to 64 years (N = 6646), using face-to-face interviews. Logistic regression modeling was used to assess PTSD correlates. The lifetime PTE/OLE prevalence was 71.1%. Among exposed subjects, one-week PTSD prevalence was estimated at 2.0%. The correlates of PTSD were female gender, Moroccan, or Turkish ethnicity, and exposure to sexual abuse and exposure time less than four years ago. The results are discussed in relation to earlier 12-month and lifetime general population prevalence of PTSD in the Netherlands and other countries, and TSQ-based disaster studies. General population replications can provide additional TSQ baseline data, and shed light on exposure and PTSD prevalence assessed with different instruments.

Partnership for the implementation of mental health policy in Nigeria: a case study of the Comprehensive Community Mental Health Programme in Benue State

Background

71% of countries in the World Health Organisation’s (WHO’s) African Region have a stand-alone mental health policy or plan, but only 14% have fully implemented it. In Nigeria, integration of mental health into primary care has been a stumbling block to the implementation of the 1991 National Mental Health Policy, 2013 Policy on Mental Health Services Delivery and the National Mental, Neurological and Substance Use Programme and Action Plan. A partnership between public and private not-for-profits in Benue State, the Comprehensive Community Mental Health Programme (CCMHP) has successfully integrated mental health into primary care in alignment with the national mental health policy and the WHO’s mental health Gap Action Programme Intervention Guide (mhGAP-IG). There is a need to document such examples in order to inform policy implementation in Nigeria and other low- and middle-income countries (LMICs).

Methods

We followed the Case Study Methodology to Monitor and Evaluate Community Mental Health Programmes in LMICs. Four field visits were conducted between 2013 and 2017 to document the first phase of activities of CCMHP, covering the period of January 2011 through June 2016.

Results

In its first phase, CCMHP trained 19 community psychiatric nurses and 48 community health extension workers in mhGAP-IG, establishing 45 new mental health clinics in primary care facilities across Benue, a state more populous than many countries. As a result, 13,785 clients (55% male, 45% female) were enrolled in mental health services either in primary care or in one of two pre-existing community-based rehabilitation facilities. Most are adults over age 18 (82.75%), and present to services with epilepsy (52.38%) or psychosis (38.41%).

Conclusion

The case of CCMHP demonstrates it is possible to rapidly scale-up mental health services in line with national mental health policy using the mhGAP-IG, even in a challenging, low-resource setting. Multi-sectoral partnerships may help to overcome some of the barriers to successful integration of mental health into general healthcare by capitalising on the resources and expertise of both state and non-state actors. However, a difficult political context could threaten the sustainability of the programme if funder requirements force a rapid transition to full government ownership.

The age of opportunity: prevalence of key risk factors among adolescents 10-19 years of age in nine communities in sub-Saharan Africa

OBJECTIVE

To measure health-related behaviours and risk factors among sub-Saharan African adolescents.

METHODS

Cross-sectional study in nine communities in Burkina Faso, Ethiopia, Eswatini, Ghana, Nigeria, Tanzania and Uganda between 2015 and 2017. Community-representative samples of males and females 10-19 years of age were selected. All communities used a uniform questionnaire that was adapted from the WHO Global School-based Student Health Survey. Weighted prevalence estimates and 95% confidence intervals were calculated for each indicator and stratified by age and sex using SAS version 9.4. All prevalence estimates were pooled across communities through random-effects meta-analyses in Stata version 14.

RESULTS

A total of 8075 adolescents participated in the study. We observed a high prevalence of inadequate fruit consumption (57-63%) and low physical activity (82-90%); a moderate prevalence of inadequate vegetable consumption (21-31%), unprotected last sex (38-45%), age at first sex <15 years (21-28%) and bullying and physical fighting (12-35%); and a low prevalence of mental health risk factors (1-11%) and alcohol and substance use risk factors (0-6%). We observed a moderate to high prevalence of daily soft drink consumption (21-31%) for all adolescents. Among sexually active adolescents 15-19 years, 37% of females reported ever being pregnant and 8% of males reported to have ever made someone pregnant. Bullying (23%) and physical fighting (35%) were more common among younger male adolescents . The prevalence of low mood was generally higher among older (15-19 years) than younger adolescents (10-14 years). The proportion of adolescents reporting alcohol, drug or cigarette use was very small, with the exception of khat use in Ethiopia.

CONCLUSION

Overall, diet and physical activity, violence, sexual and reproductive health, and depression are important risk factors for these sub-Saharan African communities. These findings suggest that more evidence is needed including novel efforts for the collection of sensitive information, as well as a need to move towards community-tailored interventions to reach adolescent populations with varying needs.

Burden, psychological well-being and quality of life of caregivers of end stage renal disease patients

Background

Caregivers of chronic kidney disease (CKD) patients play an important role in the management of the patients. Their psychological needs are often overlooked and unmet by the managing team. This study assessed the psychosocial well-being and quality of life (QoL) of caregivers of CKD patients in two hospitals in Southern Nigeria.

Methods

Burden of caregiving, QoL, depression, and anxiety were assessed using standardized instruments; modified Zarit questionnaire, modified SF-12 questionnaire and Hospital Anxiety and Depression Scale (HADS) respectively among caregivers of CKD patients on maintenance haemodialysis and controls.

Results

Fifty-seven caregivers of CKD patients and aged and sex-matched controls participated in the study. Anxiety was significantly higher in caregivers compared to control (31.6% vs 5.3%, p = 0.004). Also, depression was significantly higher in caregivers (31.6% vs 3.5%, p= <0.001). Twenty-eight (49.1%) of the caregivers had mild to moderate burden and 19 (33.3%) had a high burden. The mean Zarit burden score was higher in female caregivers compared to male caregivers (18.30±8.11 vs 14.83±6.70, p = 0.09). The mean depression score was higher in female caregivers compared to male caregivers (8.58±3.83 vs 6.75±3.80, p= 0.08). There was significant positive correlation between Zarit burden and hospital anxiety score (r = 0.539, p= < 0.001) and depression score (r = 0.472, p = 0.005).

Conclusion

Depression, anxiety and burden were common among caregivers of CKD patients especially females compared to controls. Supportive interventions for these caregivers should be included in treatment guidelines in order to improve overall patients' outcome.

Funding

Self-funded

High- versus low-intensity interventions for perinatal depression delivered by non-specialist primary maternal care providers in Nigeria: cluster randomised controlled trial (the EXPONATE trial)

BACKGROUND

Contextually appropriate interventions delivered by primary maternal care providers (PMCPs) might be effective in reducing the treatment gap for perinatal depression.

AIM

To compare high-intensity treatment (HIT) with low-intensity treatment (LIT) for perinatal depression.

METHOD

Cluster randomised clinical trial, conducted in Ibadan, Nigeria between 18 June 2013 and 11 December 2015 in 29 maternal care clinics allocated by computed-generated random sequence (15 HIT; 14 LIT). Interventions were delivered individually to antenatal women with DSM-IV (1994) major depression by trained PMCPs. LIT consisted of the basic psychosocial treatment specifications in the World Health Organization Mental Health Gap Action Programme - Intervention Guide. HIT comprised LIT plus eight weekly problem-solving therapy sessions with possible additional sessions determined by scores on the Edinburgh Postnatal Depression Scale (EPDS). The primary outcome was remission of depression at 6 months postpartum (EPDS < 6).

RESULTS

There were 686 participants; 452 and 234 in HIT and LIT arms, respectively, with both groups similar at baseline. Follow-up assessments, completed on 85%, showed remission rates of 70% with HIT and 66% with LIT: risk difference 4% (95% CI -4.1%, 12.0%), adjusted odds ratio 1.12 (95% CI 0.73, 1.72). HIT was more effective for severe depression (odds ratio 2.29; 95% CI 1.01, 5.20; P = 0.047) and resulted in a higher rate of exclusive breastfeeding. Infant outcomes, cost-effectiveness and adverse events were similar.

CONCLUSIONS

Except among severely depressed perinatal women, we found no strong evidence to recommend high-intensity in preference to low-intensity psychological intervention in routine primary maternal care.

DECLARATION OF INTERESTS

None.

Associations Between Anxiety and Adherence to Antiretroviral Medications in Low- and Middle-Income Countries: A Systematic Review and Meta-analysis

Untreated mental health disorders among people living with HIV (PLHIV) may prevent low- and middle-income countries (LMICs) from achieving the UNAIDS 90-90-90 targets. Anxiety disorders may be associated with decreased adherence to antiretroviral therapy (ART). We sought to review and meta-analyze studies estimating associations between anxiety and ART adherence in LMICs. We searched PubMed, PsychINFO, CINAHL and EMBASE for relevant studies published before July 18, 2018. We defined anxiety as reported anxiety scores from screening questionnaires or having a clinical diagnosis of an anxiety disorder, and poor ART adherence as missed doses, poor visit attendance, or scores from structured adherence questionnaires. We used a random effects model to conduct a meta-analysis for calculating a pooled odds ratio, and conducted sensitivity analyses by time on ART, anxiety evaluation method, and study region. From 472 screened manuscripts, thirteen studies met our inclusion criteria. Eleven studies were included in the meta-analysis. PLHIV who reported anxiety had 59% higher odds of poor ART adherence compared with those who did not report anxiety disorder (pooled odds ratio [pOR]: 1.59, 95% confidence interval [CI] 1.29-1.96, p < 0.001). When excluding PLHIV who initiated ART within 6 months, reported anxiety remained strongly associated with poor ART adherence (pOR: 1.61, 95% CI 1.18-2.20, p = 0.003). Among PLHIV in LMICs, reported anxiety was associated with poor ART adherence. This association persisted after the ART initiation period. Increased resources for mental health may be important for achieving virologic suppression in LMICs.

Validating mental health assessment in Kenya using an innovative gold standard

With the growing burden of mental health disorders worldwide, alongside efforts to expand availability of evidence-based interventions, strategies are needed to ensure accurate identification of individuals suffering from mental disorders. Efforts to locally validate mental health assessments are of particular value, yet gold-standard clinical validation is costly, time-intensive, and reliant on available professionals. This study aimed to validate assessment items for mental distress in Kenya, using an innovative gold standard and a combination of culturally adapted and locally developed items. The mixed-method study drew on surveys and semi-structured interviews, conducted by lay interviewers, with 48 caregivers. Interviews were used to designate mental health "cases" or "non-cases" based on emotional health problems, identified through a collaborative clinical rating process with local input. Individual mental health survey items were evaluated for their ability to discriminate between cases and non-cases. Discriminant survey items included 23 items adapted from existing mental health assessment tools, as well as 6 new items developed for the specific cultural context. When items were combined into a scale, results showed good psychometric properties. The use of clinically rated semi-structured interviews provides a promising alternative gold standard that can help address the challenges of conducting diagnostic clinical validation in low-resource settings.