Economic threshold analysis of delivering a task-sharing treatment for common mental disorders at scale: the Friendship Bench, Zimbabwe

BackgroundTask-sharing treatment approaches offer a pragmatic approach to treating common mental disorders in low-income and middle-income countries (LMICs). The Friendship Bench (FB), developed in Zimbabwe with increasing adoption in other LMICs, is one example of this type of treatment model using lay health workers (LHWs) to deliver treatment.ObjectiveTo consider the level of treatment coverage required for a recent scale-up of the FB in Zimbabwe to be considered cost-effective.MethodsA modelling-based deterministic threshold analysis conducted within a ‘cost-utility’ framework using a recommended cost-effectiveness threshold.FindingsThe FB would need to treat an additional 3413 service users (10 per active LHW per year) for its scale-up to be considered cost-effective. This assumes a level of treatment effect observed under clinical trial conditions. The associated incremental cost-effectiveness ratio was $191 per year lived with disability avoided, assuming treatment coverage levels reported during 2020. The required treatment coverage for a cost-effective outcome is within the level of treatment coverage observed during 2020 and remained so even when assuming significantly compromised levels of treatment effect.ConclusionsThe economic case for a scaled-up delivery of the FB appears convincing in principle and its adoption at scale in LMIC settings should be given serious consideration.Clinical implicationsFurther evidence on the types of scale-up strategies that are likely to offer an effective and cost-effective means of sustaining required levels of treatment coverage will help focus efforts on approaches to scale-up that optimise resources invested in task-sharing programmes.

Impact of Integration of Severe Acute Malnutrition Treatment in Primary Health Care Provided by Community Health Workers in Rural Niger

The present study aimed to assess the effectiveness and impact on treatment coverage of integrating severe acute malnutrition (SAM) treatment at the health hut level by community health workers (CHWs). This study was a non-randomized controlled trial, including two rural communes in the health district of Mayahi: Maïreyreye (control) and Guidan Amoumoune (intervention). The control group received outpatient treatment for uncomplicated SAM from health facilities (HFs), while the intervention group received outpatient treatment for uncomplicated SAM from HFs or CHWs. A total of 2789 children aged 6–59 months with SAM without medical complications were included in the study. The proportion of cured children was 72.1% in the control group, and 77.2% in the intervention group. Treatment coverage decreased by 8.3% in the control area, while the group of CHWs was able to mitigate that drop and even increase coverage by 3%. This decentralized treatment model of acute malnutrition with CHWs allowed an increase in treatment coverage while maintaining a good quality of care. It also allowed the early inclusion of children in less severe conditions. These results may enhance the Niger Ministry of Health to review the management of SAM protocol and allow CHWs to treat acute malnutrition.

Abstract MP64: Estimated Impact Of Public Health System Reforms To Increase Hypertension Treatment Coverage In India

Background: Approaches to scale up hypertension (HTN) treatment are needed in India, where only ~10% of individuals with HTN have controlled blood pressure. Objective: Estimate the current HTN treatment capacity of the public health system in India and model the effects of selected health system reform options. Methods: Using constrained optimization models, we estimated the HTN treatment capacity and salary costs of HTN-treating staff within the public health system; and simulated the potential effects of 1) increased workforce, 2) greater task sharing, and/or 3) reduced visit frequency (quarterly) vs the common practice of monthly visits for prescription refills. Results: An estimated 8% of all adults with HTN could be treated in the status quo (current number of health workers, no further task sharing, and monthly visits) (Figure). Treating 70% of adults with HTN with monthly visits without greater task sharing could require an additional 1.6 million staff, with ~200 billion ₹ (≈US$2.7 billion)) in additional annual salaries. Greater task sharing was estimated to allow the current workforce to treat ~25% of individuals with HTN with monthly visits. Quarterly visits (i.e., longer prescription periods) together with greater task sharing could allow the current workforce to treat ~70% of patients with HTN in India. Conclusion: Expanding HTN treatment coverage through workforce expansion alone will require substantial human and financial resources. The combination of greater task sharing and quarterly visits could increase the coverage of HTN treatment to ~70% of adults with HTN in India, without any expansion of the current workforce of the public health system.

Understanding the Role of Health Workers in the LF Elimination Program in Kenya: Challenges Faced and Suggestions for Improved Program Performance

The Kenyan Ministry of Health and its partners through the Division of Vector-Borne and Neglected Tropical Diseases, is in charge of the Lymphatic Filariasis Mass Drug Administration programme. This is implemented through the national, county, and sub-county neglected tropical diseases coordinators. The current study sought to understand the roles, challenges faced and suggestions of how program performance can be improved by the community health extension workers, county and sub-county neglected tropical diseases coordinators. Two wards of the Kaloleni sub-county; Kilifi County were purposively selected. In 2015, Kaloleni and Kayafungo wards had a treatment coverage of 58% and 54% respectively; 62% and 39% respectively in 2016, all below the recommended minimum treatment coverage of 65%. Qualitative data was collected through sixteen in-depth interviews with community health extension workers and two semi-structured interviews with the county and sub-county neglected tropical diseases coordinators. Data were analysed by QSR NVIVO version 10 according to identified themes. The study results show the various roles in planning and implementation of the program include; supply chain management; health information education communication and records management; health workforce training and management, leadership and governance, and service delivery. Challenges faced included insufficiency of drugs supplied and information education communication materials, the inadequacy of community drug distributors selected and trained, poor facilitation for training and supervision of community drug distributors, limited duration of the mass drug administration, and delayed reporting due to poor network coverage. The results of this study show that the community health extension workers, county and sub-county neglected tropical diseases coordinators are not fully involved in program leadership and governance, a role that is taken up at the national level. They should be involved in all the stages of the mass drug administration program to create ownership to improve the program performance

Estimation of benzathine penicillin G demand for congenital syphilis elimination with adoption of dual HIV/syphilis rapid diagnostic tests in eleven high burden countries

Background WHO recommends use of rapid dual HIV/syphilis tests for screening pregnant women (PW) during antenatal care to prevent mother-to-child transmission. Scale-up of testing implies a need to accurately forecast and procure benzathine penicillin (BPG) to treat the additionally identified PW with syphilis. Methods Country-reported ANC coverage, PW syphilis screening and treatment coverage values in 2019 were scaled linearly to EMTCT targets by 2030 (constant increasing slope from 2019 figures to 95% in 2030) for 11 focus countries. Antenatal syphilis screening coverage was substituted with HIV screening coverage to estimate potential contribution of rapid dual HIV/syphilis tests in identifying additional PW with syphilis. BPG demand was calculated for 2019–2030 accordingly. Results The estimated demand for BPG (in 2.4 million unit vials) using current maternal syphilis prevalence and treatment coverage will increase from a baseline of 414,459 doses in 2019 to 683,067 doses (+65%) in 2021 assuming immediate replacement of single HIV test kits with rapid dual HIV/syphilis tests for these 11 countries. Continued scale up of syphilis screening and treatment coverage to reach elimination coverage of 95% will result in an estimated demand increase of 160%, (663,969 doses) from 2019 baseline for a total demand of 1,078,428 BPG doses by 2030. Conclusions Demand for BPG will increase following adoption of rapid dual HIV/syphilis test kits due to increases in maternal diagnoses of syphilis. To eliminate congenital syphilis, MNCH clinical programs will need to synergize with disease surveillance programs to accurately forecast BPG demand with scale up of antenatal syphilis screening to ensure adequate treatment is available for pregnant women diagnosed with syphilis.

Prevalence and Correlation Analysis of Soil-Transmitted Helminths Infections and Treatment Coverage for Preschool and School Aged Children in Kenya: Secondary Analysis of the National School Based Deworming Program Data

Background: Soil-transmitted helminths (STH) are among the most common parasitic infections globally, disproportionately affecting children. Treatment of STH in Kenya is often targeted at preschool (PSAC) and school aged (SAC) children delivered through annual mass drug administration (MDA) in primary schools. Understanding group-specific prevalence and dynamics between treatment and coverage is critical for continued treatment success. This study aims to provide detailed information on group-specific infection prevalence and relative reductions (RR), and their relationships with treatment coverage over time. Additionally, it aims to quantify the correlation between the observed school level infection prevalence and treatment coverage.Methods: Secondary analysis of existing data collected between 2012 and 2018 by the monitoring and evaluation (M&E) program of the National School-Based Deworming (NSBD) program was used. The M&E program conducted surveys utilizing cross-sectional study design, at four survey time points, in a nationally-representative sample of schoolchildren across counties in Kenya. In each participating school, the program randomly sampled 108 children per school, of both groups. Infection prevalence was estimated using binomial regression, RR in prevalence using multivariable mixed effects model, statistical correlations using structural equation modeling, and change-point-analysis using the binary segmentation algorithm.Results: Overall, STH prevalence for PSAC was 33.7, 20.2, 19.0, and 17.9% during Year 1 (Y1), Year 3 (Y3), Year 5 (Y5), and Year 6 (Y6) surveys, respectively with an overall RR of 46.9% (p = 0.001) from Y1 to Y6. Similarly, overall STH prevalence for SAC was 33.6, 18.4, 14.7, and 12.5% during Y1, Y3, Y5, and Y6 surveys, respectively with an overall RR of 62.6% (p < 0.001). An overall (all time points) significant but very weak negative correlation was found between treatment coverage and undifferentiated STH prevalence (r = −0.144, p = 0.002) among PSAC but not in SAC. Further, we observed inter-county heterogeneity variation in infection prevalence, RR, as well as correlations.Conclusion: The analysis showed that after six rounds of MDA, prevalence of STH has significantly declined among both groups of children, however not to a point where it is not a public health problem (below 1%). The analysis, additionally established an overall significant but weak negative correlation between treatment coverage and prevalence, indicating that the current treatment coverage might not be sufficient to drive the overall STH prevalence to below 1%. These findings will allow STH control programs in Kenya to make decisions that will accelerate the attainment of STH elimination as a public health problem.