Attention-deficit/hyperactivity disorder in Mozambique: an epidemiological investigation in a primary school sample

Objective: To evaluate the prevalence of attention-deficit/hyperactivity disorder (ADHD), comorbidity rates with disruptive behavior disorders and main negative outcomes in primary school students in Nampula, Mozambique. Methods: We selected a random sample of 748 students for ADHD screening from a population of around 43,000 primary school students. The Swanson, Nolan, and Pelham Rating Scale version IV was applied to both parents and teachers. All students who screened positive (n=76) and a propensity score-matched random subset of students who screened negative (n=76) were assessed by a child psychiatrist. Results: The prevalence of ADHD was estimated at 13.4% (95%CI 11.5-19.2), and 30.6% of those with ADHD presented comorbid disruptive behavior disorders. Students with ADHD (n=36) had significantly higher rates of both substance use (alcohol, marijuana) (p < 0.001), and school failures than controls (n=96; p < 0.001). Comorbidity between ADHD and disruptive behavior disorders increased the chance of substance use (p < 0.001). Secondary analyses with more restrictive ADHD diagnostic criteria revealed a lower prevalence rate (6.7%; 95%CI 5.2-12.9) with similar patterns of associated factors and negative outcomes. Conclusion: Our findings demonstrated that ADHD is a prevalent mental disorder in Mozambique, and it is associated with similar comorbid profiles, predisposing factors, and negative outcomes, as in other cultures.

Does It Matter What Screener We Use? A Comparison of Ultra-brief PHQ-4 and E-mwTool-3 Screeners for Anxiety and Depression Among People With and Without HIV.

The burden of depression and anxiety disorders is high in sub-Saharan Africa, especially for people with HIV (PWH). The Patient Health Questionnaire-4 (PHQ-4) and Electronic Mental Wellness Tool-3 (E-mwTool-3) are ultra-brief screening tools for these disorders. We compared the performance of PHQ-4 and E-mwTool-3 for screening MINI-International Neuropsychiatric Interview diagnoses of depression and anxiety among a sample of individuals with and without HIV in two primary care clinics and one general hospital in Maputo City, Mozambique. Areas-under-the-curve (AUC) were calculated along with sensitivities and specificities at a range of cutoffs. For PWH, at a sum score cutoff of ≥ 1, sensitivities were strong: PHQ-4:Depression = 0.843; PHQ-4:Anxiety = 0.786; E-mwTool-3:Depression = 0.843; E-mwTool-3:Anxiety = 0.929. E-mwTool-3 performance was comparable to PHQ-4 among people with and without HIV.

Brief Screening Tool for Stepped-Care Management of Mental and Substance Use Disorders.

OBJECTIVE: Stepped mental health care requires a rapid method for nonspecialists to detect illness. This study aimed to develop and validate a brief instrument, the Mental Wellness Tool (mwTool), for identification and classification. METHODS: Cross-sectional development and validation samples included adults at six health facilities in Mozambique. Mini International Neuropsychiatric Interview diagnoses were the criterion standard. Candidate items were from nine mental disorder and functioning assessments. Regression modeling and expert consultation determined best items for identifying any mental disorder and classifying positives into disorder categories (severe mental disorder, common mental disorder, substance use disorder, and suicide risk). For validation, sensitivity and specificity were calculated for any mental disorder (index and proxy respondents) and disorder categories (index). RESULTS: From the development sample (911 participants, mean±SD age=32.0±11 years, 63% female), 13 items were selected-three with 0.83 sensitivity (95% confidence interval [CI]=0.79-0.86) for any mental disorder and 10 additional items classifying participants with a specificity that ranged from 0.72 (severe mental disorder) to 0.90 (suicide risk). For validation (453 participants, age 31±11 years, 65% female), sensitivity for any mental disorder was 0.94 (95% CI=0.89-0.97) with index responses and 0.73 (95% CI=0.58-0.85) with family proxy responses. Specificity for categories ranged from 0.47 (severe mental disorder) to 0.93 (suicide risk). Removing one item increased severe mental disorder specificity to 0.63 (95% CI=0.58-0.68). CONCLUSIONS: The mwTool performed well for identification of any mental disorder with index and proxy responses to three items and for classification into treatment categories with index responses to nine additional items.