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MacLeod C, Ngabirano L, N'Diaye DS, Braun L, Cumming O. Household-level water, sanitation and hygiene factors and interventions and the prevention of relapse after severe acute malnutrition recovery: A systematic review. Matern Child Nutr 2024:e13634. [PMID: 38372439 DOI: 10.1111/mcn.13634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 01/29/2024] [Accepted: 01/31/2024] [Indexed: 02/20/2024]
Abstract
Severe acute malnutrition (SAM) is the most serious form of acute malnutrition and is associated with high mortality risk among children under 5. While the Community-based Management of Acute Malnutrition (CMAM) approach, recommended for treating cases of uncomplicated SAM, has increased treatment coverage and recovery outcomes, high relapse rates have been reported. Several risk factors for SAM relapse, such as insufficient food intake and high infectious disease burden in the community, have been identified. However, the role of household water, sanitation and hygiene (WASH) conditions remains unclear. This systematic review: (1) assesses the effectiveness of WASH interventions on preventing SAM relapse and (2) identifies WASH-related conditions associated with relapse to SAM among children aged 6-59 months discharged as recovered following SAM CMAM treatment. We performed electronic searches of six databases to identify relevant studies published between 1 January 2000 and 6 November 2023 and assessed their quality. After deduplication, 10,294 documents were screened by title and abstract, with 13 retrieved for full-text screening. We included three studies ranging from low- to medium-quality. One intervention study found that providing a WASH kit during SAM outpatient treatment did not reduce the risk of relapse to SAM. Two observational studies found inconsistent associations between household WASH conditions-unimproved sanitation and unsafe drinking water-and SAM relapse. Despite the paucity of evidence, the hypothesised causal pathways between WASH conditions and the risk of relapse remain plausible. Further evidence is needed to identify interventions for an integrated postdischarge approach to prevent relapse.
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Affiliation(s)
- Clara MacLeod
- Department of Disease Control, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | | | | | - Laura Braun
- Department of Disease Control, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Oliver Cumming
- Department of Disease Control, London School of Hygiene and Tropical Medicine, London, United Kingdom
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Patlán‐Hernández AR, Stobaugh HC, Cumming O, Angioletti A, Pantchova D, Lapègue J, Stern S, N'Diaye DS. Water, sanitation and hygiene interventions and the prevention and treatment of childhood acute malnutrition: A systematic review. Matern Child Nutr 2022; 18:e13257. [PMID: 34612592 PMCID: PMC8710129 DOI: 10.1111/mcn.13257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 07/02/2021] [Accepted: 07/20/2021] [Indexed: 11/28/2022]
Abstract
Undernutrition is more prevalent among children living in unsanitary environments with inadequate water, sanitation and hygiene (WASH). Despite good evidence for the effect of WASH on multiple infectious diseases, evidence for the effect of WASH interventions on childhood undernutrition is less well established, particularly for acute malnutrition. To assess the effectiveness of WASH interventions in preventing and treating acute childhood malnutrition, we performed electronic searches to identify relevant studies published between 1 January 2000 and 13 May 2019. We included studies assessing the effect of WASH on prevention and treatment of acute malnutrition in children under 5 years of age. Data were extracted by two independent reviewers. We included 26 articles of 599 identified references with a total of 43,083 participants. Twenty-five studies reported on the effect of WASH on prevention, and two studies reported its effect on treatment of acute malnutrition. Current evidence does not show consistent associations of WASH conditions and interventions with prevention of acute malnutrition or with the improvement of its treatment outcomes. Only two high-quality randomized controlled trials (RCTs) demonstrated that improved water quality during severe acute malnutrition treatment improved recovery outcomes but did not prevent relapse. Many of the interventions consisted of a package of WASH services, making impossible to attribute the effect to one specific component. This highlights the need for high-quality, rigorous intervention studies assessing the effects of WASH interventions specifically designed to prevent acute malnutrition or improve its treatment.
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Affiliation(s)
| | - Heather C. Stobaugh
- Action Against HungerNew YorkNew YorkUSA
- Tufts UniversityBostonMassachusettsUSA
| | - Oliver Cumming
- Department of Disease Control, Faculty of Infectious and Tropical DiseasesLondon School of Hygiene and Tropical MedicineLondonUK
| | | | - Danka Pantchova
- Action Contre la FaimParisFrance
- Global Nutrition ClusterUnited Nations Children's FundNew YorkNew YorkUSA
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N'Diaye DS, Wassonguema B, Nikièma V, Kangas ST, Salpéteur C. Economic evaluation of a reduced dosage of ready-to-use therapeutic foods to treat uncomplicated severe acute malnourished children aged 6-59 months in Burkina Faso. Matern Child Nutr 2021; 17:e13118. [PMID: 33621428 PMCID: PMC8189238 DOI: 10.1111/mcn.13118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 10/06/2020] [Accepted: 11/13/2020] [Indexed: 12/17/2022]
Abstract
Ready‐to‐use therapeutic foods (RUTF) used to treat children with severe acute malnutrition (SAM) are costly, and the prescribed dosage has not been optimized. The MANGO trial, implemented by Action Contre la Faim in Burkina Faso, proved the non‐inferiority of a reduced RUTF dosage in community‐based treatment of uncomplicated SAM. We performed a cost‐minimization analysis to assess the economic impact of transitioning from the standard to the reduced RUTF dose. We used a decision‐analytic model to simulate a cohort of 399 children/arm, aged 6–59 months and receiving SAM treatment. We adopted a societal perspective: direct medical costs (drugs, materials and staff time), non‐medical costs (caregiver expenses) and indirect costs (productivity loss) in 2017 international US dollar were included. Data were collected through interviews with 35 caregivers and 20 informants selected through deliberate sampling and the review trial financial documents. The overall treatment cost for 399 children/arm was $36,550 with the standard and $30,411 with the reduced dose, leading to $6,140 (16.8%) in cost savings ($15.43 saved/child treated). The cost/consultation was $11.6 and $9.6 in the standard and reduced arms, respectively, with RUTF accounting for 56.2% and 47.0% of the total. The savings/child treated was $11.4 in a scenario simulating the Burkinabè routine SAM treatment outside clinical trial settings. The reduced RUTF dose tested in the MANGO trial resulted in significant cost savings for SAM treatment. These results are useful for decision makers to estimate potential economic gains from an optimized SAM treatment protocol in Burkina Faso and similar contexts.
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Affiliation(s)
- Dieynaba S N'Diaye
- Research unit, Expertise & Advocacy Department, Action Contre la Faim, Paris, France
| | - Bibata Wassonguema
- Research unit, Expertise & Advocacy Department, Action Contre la Faim, Paris, France
| | | | - Suvi T Kangas
- Research unit, Expertise & Advocacy Department, Action Contre la Faim, Paris, France.,Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Cécile Salpéteur
- Research unit, Expertise & Advocacy Department, Action Contre la Faim, Paris, France
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Uppal A, Oxlade O, Nsengiyumva NP, N'Diaye DS, Alvarez GG, Schwartzman K. Social and behavioral risk reduction strategies for tuberculosis prevention in Canadian Inuit communities: a cost-effectiveness analysis. BMC Public Health 2021; 21:280. [PMID: 33536003 PMCID: PMC7860224 DOI: 10.1186/s12889-021-10187-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 01/06/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Tuberculosis (TB) is an important public health problem in Inuit communities across Canada, with an annual incidence rate in 2017 that was nearly 300 times higher than in Canadian-born non-Indigenous individuals. Social and behavioral factors that are prevalent in the North, such as commercial tobacco use, excessive alcohol use, food insecurity and overcrowded housing put individuals at higher risk for TB morbidity and mortality. We examined the potential impact of mitigation strategies for these risk factors, in reducing TB burden in this setting. METHODS We created a transmission model to simulate the epidemiology of TB in Nunavut, Canada. We then used a decision analysis model to assess the potential impact of several evidence-based strategies targeting tobacco use, excessive alcohol use, food insecurity and overcrowded housing. We predicted TB incidence, TB-related deaths, quality adjusted life years (QALYs), and associated costs and cost-effectiveness over 20 years. All costs were expressed in 2018 Canadian dollars. RESULTS Compared to a status quo scenario with no new interventions for these risk factors, the reduction strategy for tobacco use was most effective and cost-effective, reducing TB incidence by 5.5% (95% uncertainty range: 2.7-11%) over 20 years, with an estimated cost of $95,835 per TB case prevented and $49,671 per QALY gained. The addition of the food insecurity reduction strategy reduced incidence by a further 2% (0.5-3%) compared to the tobacco cessation strategy alone, but at significant cost. CONCLUSIONS Strategies that aim to reduce commercial tobacco use and improve food security will likely lead to modest reductions in TB morbidity and mortality. Although important for the communities, strategies that address excess alcohol use and overcrowding will likely have a more limited impact on TB-related outcomes at current scale, and are associated with much higher cost. Their benefits will be more substantial with scale up, which will also likely have important downstream impacts such as improved mental health, educational attainment and food security.
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Affiliation(s)
- Aashna Uppal
- Montreal Chest Institute, Montreal, Quebec, Canada
- Respiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
- McGill International Tuberculosis Centre, 1001 boulevard Décarie, Room D05.2511, Montréal, Québec, H4A 3J1, Canada
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada
| | - Olivia Oxlade
- Respiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
- McGill International Tuberculosis Centre, 1001 boulevard Décarie, Room D05.2511, Montréal, Québec, H4A 3J1, Canada
| | - Ntwali Placide Nsengiyumva
- Respiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
- McGill International Tuberculosis Centre, 1001 boulevard Décarie, Room D05.2511, Montréal, Québec, H4A 3J1, Canada
| | - Dieynaba S N'Diaye
- Montreal Chest Institute, Montreal, Quebec, Canada
- Respiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
- McGill International Tuberculosis Centre, 1001 boulevard Décarie, Room D05.2511, Montréal, Québec, H4A 3J1, Canada
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada
| | - Gonzalo G Alvarez
- The Ottawa Hospital Research Institute, Department of Medicine, Division of Respirology, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - Kevin Schwartzman
- Montreal Chest Institute, Montreal, Quebec, Canada.
- Respiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada.
- McGill International Tuberculosis Centre, 1001 boulevard Décarie, Room D05.2511, Montréal, Québec, H4A 3J1, Canada.
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada.
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Cormier M, Schwartzman K, N'Diaye DS, Boone CE, Dos Santos AM, Gaspar J, Cazabon D, Ghiasi M, Kahn R, Uppal A, Morris M, Oxlade O. Proximate determinants of tuberculosis in Indigenous peoples worldwide: a systematic review. Lancet Glob Health 2019; 7:e68-e80. [PMID: 30554764 DOI: 10.1016/s2214-109x(18)30435-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 08/29/2018] [Accepted: 09/05/2018] [Indexed: 01/30/2023]
Abstract
BACKGROUND Indigenous peoples worldwide carry a disproportionate tuberculosis burden. There is an increasing awareness of the effect of social determinants and proximate determinants such as alcohol use, overcrowding, type 1 and type 2 diabetes, substance misuse, HIV, food insecurity and malnutrition, and smoking on the burden of tuberculosis. We aimed to understand the potential contribution of such determinants to tuberculosis in Indigenous peoples and to document steps taken to address them. METHODS We did a systematic review using seven databases (MEDLINE, Embase, CINAHL, Global Health, BIOSIS Previews, Web of Science, and the Cochrane Library). We identified English language articles published from Jan 1, 1980, to Dec 20, 2017, reporting the prevalence of proximate determinants of tuberculosis and preventive programmes targeting these determinants in Indigenous communities worldwide. We included any randomised controlled trials, controlled studies, cohort studies, cross-sectional studies, case reports, and qualitative research. Exclusion criteria were articles in languages other than English, full text not available, population was not Indigenous, focused exclusively on children or older people, and studies that focused on pharmacological interventions. FINDINGS Of 34 255 articles identified, 475 were eligible for inclusion. Most studies confirmed a higher prevalence of proximate determinants in Indigenous communities than in the general population. Diabetes was more frequent in Indigenous communities within high-income countries versus in low-income countries. The prevalence of alcohol use was generally similar to that among non-Indigenous groups, although patterns of drinking often differed. Smoking prevalence and smokeless tobacco consumption were commonly higher in Indigenous groups than in non-Indigenous groups. Food insecurity was highly prevalent in most Indigenous communities evaluated. Substance use was more frequent in Indigenous inhabitants of high-income countries than of low-income countries, with wide variation across Indigenous communities. The literature pertaining to HIV, crowding, and housing conditions among Indigenous peoples was too scant to draw firm conclusions. Preventive programmes that are culturally appropriate targeting these determinants appear feasible, although their effectiveness is largely unproven. INTERPRETATION Indigenous peoples were generally reported to have a higher prevalence of several proximate determinants of tuberculosis than non-Indigenous peoples, with wide variation across Indigenous communities. These findings emphasise the need for community-led, culturally appropriate strategies to address smoking, food insecurity, and diabetes in Indigenous populations as important public health goals in their own right, and also to reduce the burden of tuberculosis. FUNDING Canadian Institutes of Health Research.
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Affiliation(s)
- Maxime Cormier
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Respiratory Division, McGill University, Montreal, QC, Canada
| | - Kevin Schwartzman
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Respiratory Division, McGill University, Montreal, QC, Canada.
| | - Dieynaba S N'Diaye
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Respiratory Division, McGill University, Montreal, QC, Canada
| | - Claire E Boone
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Respiratory Division, McGill University, Montreal, QC, Canada
| | - Alexandre M Dos Santos
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Respiratory Division, McGill University, Montreal, QC, Canada
| | - Júlia Gaspar
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Respiratory Division, McGill University, Montreal, QC, Canada
| | - Danielle Cazabon
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Respiratory Division, McGill University, Montreal, QC, Canada
| | - Marzieh Ghiasi
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Respiratory Division, McGill University, Montreal, QC, Canada
| | - Rebecca Kahn
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Respiratory Division, McGill University, Montreal, QC, Canada
| | - Aashna Uppal
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Respiratory Division, McGill University, Montreal, QC, Canada
| | - Martin Morris
- Schulich Library of Physical Sciences, Life Sciences and Engineering, McGill University, Montreal, QC, Canada
| | - Olivia Oxlade
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Respiratory Division, McGill University, Montreal, QC, Canada
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Ségéral O, N'Diaye DS, Prak S, Nouhin J, Chhun S, Khamduang W, Chim K, Roque-Afonso AM, Piola P, Borand L, Ngo-Giang-Huong N, Rouet F. Usefulness of a serial algorithm of HBsAg and HBeAg rapid diagnosis tests to detect pregnant women at risk of HBV mother-to-child transmission in Cambodia, the ANRS 12328 pilot study. J Clin Virol 2018; 109:29-34. [PMID: 30388664 DOI: 10.1016/j.jcv.2018.10.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 10/15/2018] [Accepted: 10/18/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND In Cambodia, access to hepatitis B surface antigen (HBsAg) screening is low for pregnant women and Hepatitis B Virus (HBV) DNA quantification is poorly accessible. OBJECTIVES To evaluate the performance of a serial algorithm using two HBV rapid diagnostic tests (RDTs), in which samples positive for HBsAg were further tested for HBeAg as a surrogate marker for HBV DNA quantification. STUDY DESIGN In 2015, we prospectively collected plasma samples from 250 pregnant women consulting for antenatal care in one hospital in Phnom Penh including 128 with a known positive HBsAg status. All specimens were tested with the SD BIOLINE HBsAg RDT and HBsAg ELISA assay. In ELISA-positive samples, HBeAg status was determined using the SD BIOLINE HBeAg RDT and HBV DNA quantification was assessed. RESULTS Sensitivity and specificity of HBsAg RDT were 99.2% (97.7-99.9) and 100% (97.0-100), respectively. Among the 128 ELISA-positive samples, 29 (23%) tested HBeAg positive and 34 (26.5%) had HBV DNA > 5.3 Log10 IU/mL. Sensitivity and specificity of HBeAg RDT in identifying viremic samples were 76.5% (62.2.0-90.7) and 96.8% (93.3-100) for HBV DNA > 5.3 Log10 IU/mL and 89.3% (77.8-100) and 96.0% (92.2-99.8) for HBV DNA > 7.3 Log10IU/mL. Among the 99 negative HBeAg RDT women, 8 had HBV DNA > 5.3 Log10 IU/mL and 7 of them harbored BCP/PC HBV mutants. CONCLUSIONS A combination of HBsAg and HBeAg RDTs could be a low-cost strategy to identify HBV-infected pregnant women at risk of perinatal transmission in a country were HBV DNA quantification is not routinely available.
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Affiliation(s)
| | - Dieynaba S N'Diaye
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Sophearot Prak
- Virology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Janin Nouhin
- Virology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | | | - Wootichai Khamduang
- Faculty of Associated Medical Sciences, Institut de Recherche pour le Développement (IRD), UMI 174/Programs for HIV Prevention and Treatment (PHPT), Chiang Mai, Thailand
| | - Kenrena Chim
- Maternity Department, Hôpital Calmette, Phnom Penh, Cambodia
| | | | - Patrice Piola
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Laurence Borand
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Nicole Ngo-Giang-Huong
- Faculty of Associated Medical Sciences, Institut de Recherche pour le Développement (IRD), UMI 174/Programs for HIV Prevention and Treatment (PHPT), Chiang Mai, Thailand
| | - François Rouet
- Virology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
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Puett C, Salpéteur C, Houngbe F, Martínez K, N'Diaye DS, Tonguet-Papucci A. Costs and cost-efficiency of a mobile cash transfer to prevent child undernutrition during the lean season in Burkina Faso: a mixed methods analysis from the MAM'Out randomized controlled trial. Cost Eff Resour Alloc 2018; 16:13. [PMID: 29686539 PMCID: PMC5899398 DOI: 10.1186/s12962-018-0096-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Accepted: 03/28/2018] [Indexed: 12/03/2022] Open
Abstract
Background This study assessed the costs and cost-efficiency of a mobile cash transfer implemented in Tapoa Province, Burkina Faso in the MAM’Out randomized controlled trial from June 2013 to December 2014, using mixed methods and taking a societal perspective by including costs to implementing partners and beneficiary households. Methods Data were collected via interviews with implementing staff from the humanitarian agency and the private partner delivering the mobile money, focus group discussions with beneficiaries, and review of accounting databases. Costs were analyzed by input category and activity-based cost centers. cost-efficiency was analyzed by cost-transfer ratios (CTR) and cost per beneficiary. Qualitative analysis was conducted to identify themes related to implementing electronic cash transfers, and barriers to efficient implementation. Results The CTR was 0.82 from a societal perspective, within the same range as other humanitarian transfer programs; however the intervention did not achieve the same degree of cost-efficiency as other mobile transfer programs specifically. Challenges in coordination between humanitarian and private partners resulted in long wait times for beneficiaries, particularly in the first year of implementation. Sensitivity analyses indicated a potential 6% reduction in CTR through reducing beneficiary wait time by one-half. Actors reported that coordination challenges improved during the project, therefore inefficiencies likely would be resolved, and cost-efficiency improved, as the program passed the pilot phase. Conclusions Despite the time required to establish trusting relationships among actors, and to set up a network of cash points in remote areas, this analysis showed that mobile transfers hold promise as a cost-efficient method of delivering cash in this setting. Implementation by local government would likely reduce costs greatly compared to those found in this study context, and improve cost-efficiency especially by subsidizing expansion of mobile money network coverage and increasing cash distribution points in remote areas which are unprofitable for private partners.
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Affiliation(s)
- Chloe Puett
- Research and Technical Department, Action Against Hunger, New York, NY USA
| | - Cécile Salpéteur
- 2Department of Expertise and Advocacy, Action contre la Faim, Paris, France
| | - Freddy Houngbe
- 2Department of Expertise and Advocacy, Action contre la Faim, Paris, France
| | - Karen Martínez
- Research and Technical Department, Action Against Hunger, New York, NY USA
| | - Dieynaba S N'Diaye
- 2Department of Expertise and Advocacy, Action contre la Faim, Paris, France
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N'Diaye DS, Launay O, Picone O, Tsatsaris V, Azria E, Rozenberg F, Schwarzinger M, Yazdanpanah Y. Cost-effectiveness of vaccination against cytomegalovirus (CMV) in adolescent girls to prevent infections in pregnant women living in France. Vaccine 2018; 36:1285-1296. [PMID: 29397227 DOI: 10.1016/j.vaccine.2018.01.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 12/15/2017] [Accepted: 01/16/2018] [Indexed: 10/18/2022]
Abstract
BACKGROUND CMV infections are the most frequent congenital infections worldwide. AIM Assess the cost-effectiveness of vaccination strategies of adolescent girls vs. current practice (hygiene counseling) to prevent CMV seroconversions during pregnancy in France. METHOD A Markov decision-tree model simulated overtime the trajectory of a single fictive cohort of 390,000 adolescent women aged 14 years old, living in France. Impact of vaccination was explored until the end of their reproductive live 40 years later. STRATEGIES COMPARED: "S1: No vaccination" (current practice); "S2: Routine vaccination"; "S3: Screening and vaccination of the seronegative". MODEL PARAMETERS Seroconversion rate without vaccination (0.035%/pregnant woman-week); fetal transmission risk (41%). Vaccine vs. no vaccination: a 50% decrease in maternal seroconversions. OUTCOMES Quality-Adjusted Life-Years (QALYs) of the cohort-born babies; discounted costs; Incremental Cost-Effectiveness Ratio (ICER). RESULTS S2 was the most effective strategy (with 35,000 QALYs gained) and the most expensive (€211,533,000); S1 was the least effective and least costly (€75,423,000). ICERs of strategy S3 vs. S1, and S2 vs. S3 were 6,000€/QALY gained (95% uncertainty range [2700-13,300]) and 16,000€/QALY [negative ICER (S3 dominated by S2) - 94,000] gained, respectively; highly cost-effective because ICER < 1∗France's GPD/capita = €30,000. SENSITIVITY ANALYSIS If the seroprevalence was >62% (vs. 20% in the base case), S3 would become the most efficient strategy. CONCLUSION In France, systematic vaccination of adolescent girls was the most efficient strategy to prevent maternal seroconversions. If the population was less than 62% immune, systematic screening and vaccination of susceptibles would become the most cost-effective approach.
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Affiliation(s)
- D S N'Diaye
- INSERM, IAME, UMR 1137, UFR de Médecine, 75018 Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Paris, France.
| | - O Launay
- Department of Infectious Diseases, CIC Cochin-Pasteur, Cochin Broca Hôtel-Dieu Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France; INSERM U 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Center for Epidemiology and Statistics Sorbonne Paris Cité, DHU Risks in Pregnancy, Paris Descartes University, Paris, France; INSERM CIC 1417, Paris, France.
| | - O Picone
- Service de gynécologie obstétrique et médecine de la reproduction, hôpital Foch, 40, rue Worth, 92150 Suresnes, France; EA2493, UFR des sciences de la santé Simone-Veil, UVSQ, 78180 Montigny-le-Bretonneux, France.
| | - V Tsatsaris
- Port Royal Maternity, Department of Gynecology Obstetrics I, Centre Hospitalier Universitaire Cochin Broca Hôtel Dieu, Groupe Hospitalier Universitaire Ouest, Assistance Publique-Hôpital de Paris, Paris, France; INSERM, UMR-S 1139, Paris, France; PRES Sorbonne Paris Cité, Université Paris Descartes, Paris, France.
| | - E Azria
- Department of Obstetrics, Groupe Hospitalier Paris Saint Joseph, Paris Descartes University, Paris, France; Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Centre for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), DHU Risks in Pregnancy, Paris Descartes University, Paris, France.
| | - F Rozenberg
- Assistance Publique des Hôpitaux de Paris, Virology, Pathology and Dermatology Departments, Hôpital Cochin, 27, rue du Fbg Saint-Jacques, 75679 Paris cedex 14, France; Université Paris Descartes et Assistance Publique-Hôpitaux de Paris, Hôpital Cochin, Service de Virologie, Paris, France; Institut Cochin, Inserm U1016, Université Paris Descartes, 22 rue Méchain, 75014 Paris, France.
| | - M Schwarzinger
- INSERM, IAME, UMR 1137, UFR de Médecine, 75018 Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Paris, France.
| | - Y Yazdanpanah
- INSERM, IAME, UMR 1137, UFR de Médecine, 75018 Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Paris, France; Infectious Diseases Department, Bichat-Claude Bernard Hospital, Paris, France.
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Mullie GA, Schwartzman K, Zwerling A, N'Diaye DS. Revisiting annual screening for latent tuberculosis infection in healthcare workers: a cost-effectiveness analysis. BMC Med 2017; 15:104. [PMID: 28514962 PMCID: PMC5436424 DOI: 10.1186/s12916-017-0865-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 04/27/2017] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND In North America, tuberculosis incidence is now very low and risk to healthcare workers has fallen. Indeed, recent cohort data question routine annual tuberculosis screening in this context. We compared the cost-effectiveness of three potential strategies for ongoing screening of North American healthcare workers at risk of exposure. The analysis did not evaluate the cost-effectiveness of screening at hiring, and considered only workers with negative baseline tests. METHODS A decision analysis model simulated a hypothetical cohort of 1000 workers following negative baseline tests, considering duties, tuberculosis exposure, testing and treatment. Two tests were modelled, the tuberculin skin test (TST) and QuantiFERON®-TB-Gold In-Tube (QFT). Three screening strategies were compared: (1) annual screening, where workers were tested yearly; (2) targeted screening, where workers with high-risk duties (e.g. respiratory therapy) were tested yearly and other workers only after recognised exposure; and (3) post exposure-only screening, where all workers were tested only after recognised exposure. Workers with high-risk duties had 1% annual risk of infection, while workers with standard patient care duties had 0.3%. In an alternate higher-risk scenario, the corresponding annual risks of infection were 3% and 1%, respectively. We projected costs, morbidity, quality-adjusted survival and mortality over 20 years after hiring. The analysis used the healthcare system perspective and a 3% annual discount rate. RESULTS Over 20 years, annual screening with TST yielded an expected 2.68 active tuberculosis cases/1000 workers, versus 2.83 for targeted screening and 3.03 for post-exposure screening only. In all cases, annual screening was associated with poorer quality-adjusted survival, i.e. lost quality-adjusted life years, compared to targeted or post-exposure screening only. The annual TST screening strategy yielded an incremental cost estimate of $1,717,539 per additional case prevented versus targeted TST screening, which in turn cost an incremental $426,678 per additional case prevented versus post-exposure TST screening only. With the alternate "higher-risk" scenario, the annual TST strategy cost an estimated $426,678 per additional case prevented versus the targeted TST strategy, which cost an estimated $52,552 per additional case prevented versus post-exposure TST screening only. In all cases, QFT was more expensive than TST, with no or limited added benefit. Sensitivity analysis suggested that, even with limited exposure recognition, annual screening was poorly cost-effective. CONCLUSIONS For most North American healthcare workers, annual tuberculosis screening appears poorly cost-effective. Reconsideration of screening practices is warranted.
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Affiliation(s)
- Guillaume A Mullie
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Montreal, QC, Canada.,Faculty of Medicine, McGill University, Montreal, QC, Canada.,McGill International TB Centre, McGill University, Montreal, Quebec, Canada
| | - Kevin Schwartzman
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Montreal, QC, Canada. .,Faculty of Medicine, McGill University, Montreal, QC, Canada. .,McGill International TB Centre, McGill University, Montreal, Quebec, Canada. .,McGill University Health Centre, 1001 boulevard Décarie, Room D05.2511, Montreal, H4A 3J1, Quebec, Canada.
| | - Alice Zwerling
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Dieynaba S N'Diaye
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, Montreal, QC, Canada.,McGill International TB Centre, McGill University, Montreal, Quebec, Canada
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Carrara J, N'Diaye DS, Azria E, Launay O, Rozenberg F, Yazpandanah Y, Tsatsaris V, Ayoubi JM, Picone O. Management of Cytomegalovirus Seroconversion during Pregnancy in France. Fetal Diagn Ther 2015; 39:4-12. [PMID: 25997482 DOI: 10.1159/000381850] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 03/12/2015] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Guidelines for the management of cytomegalovirus (CMV) infection of the fetus are rare. Our main objective was to evaluate how health care practitioners in France manage cases of CMV seroconversion during pregnancy. MATERIAL AND METHODS A questionnaire was e-mailed to health care practitioners potentially concerned by CMV seroconversion during pregnancy. They were asked if they would recommend amniocentesis, fetal cerebral MRI examination and fetal blood analysis (FBA), depending on the ultrasound results. They then had to indicate whether they would accept termination of pregnancy (TOP), depending on the results of these examinations. RESULTS A total of 380 health care practitioners responded, mainly obstetricians (73.9%) and midwives (20.2%). Overall, 57% of respondents recommended amniocentesis in the case of CMV seroconversion during the first trimester of pregnancy, ultrasound findings being normal. In cases of positive amniocentesis and a major ultrasound abnormality, 84.5% of respondents would perform cerebral MRI, and 44.4% would perform FBA. In this case, the rate of acceptance of TOP was not significantly different whether the examinations were normal (337/372, 90.6%) or not performed (339/374, 93.3%; p = 0.17). DISCUSSION Amniocentesis is too infrequently used and should be encouraged. The results of MRI and FBA are often not taken into account in the final decision concerning TOP. Guidelines are needed to clarify the management of CMV seroconversion during pregnancy.
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Affiliation(s)
- Julie Carrara
- INSERM, IAME, UMR 1137, Universitx00E9; Paris Diderot, Sorbonne Paris Citx00E9;, Paris, France
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11
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Ribadeau Dumas F, N'Diaye DS, Paireau J, Gautret P, Bourhy H, Le Pen C, Yazdanpanah Y. Cost-effectiveness of rabies post-exposure prophylaxis in the context of very low rabies risk: A decision-tree model based on the experience of France. Vaccine 2015; 33:2367-78. [PMID: 25797366 DOI: 10.1016/j.vaccine.2015.02.075] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 02/14/2015] [Accepted: 02/28/2015] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Benefit-risk of different anti-rabies post-exposure prophylaxis (PEP) strategies after scratches or bites from dogs with unknown rabies status is unknown in very low rabies risk settings. DESIGN AND SETTING A cost-effectiveness analysis in metropolitan France using a decision-tree model and input data from 2001 to 2011. POPULATION A cohort of 2807 patients, based on the mean annual number of patients exposed to category CII (minor scratches) or CIII (transdermal bite) dog attacks in metropolitan France between 2001 and 2011. INTERVENTIONS Five PEP strategies: (A) no PEP for CII and CIII; (B) vaccine only for CIII; (C) vaccine for CII and CIII; (D) vaccine+ rabies immunoglobulin (RIG) only for CIII; and (E) vaccine for CII and vaccine+ RIG for CIII. MAIN OUTCOMES MEASURES The number of deaths related to rabies and to traffic accidents on the way to anti-rabies centers (ARC), effectiveness in terms of years of life gained by reducing rabies cases and avoiding traffic accidents, costs, and incremental cost-effectiveness ratios (ICER) associated with each strategy. RESULTS Strategy E led to the fewest rabies cases (3.6 × 10(-8)) and the highest costs (€ 1,606,000) but also to 1.7 × 10(-3) lethal traffic accidents. Strategy A was associated with the most rabies cases (4.8 × 10(-6)), but the risk of traffic accidents and costs were null; therefore, strategy A was the most effective and the least costly. The sensitivity analysis showed that, when the probability that a given dog is rabid a given day (PA) was > 1.4 × 10(-6), strategy D was more effective than strategy A; strategy B became cost-effective (i.e. ICER vs strategy A < 3 × French Gross Domestic Product per capita) when PA was > 1 .4 × 10(-4). CONCLUSIONS In the metropolitan France's very low rabies prevalence context, PEP with rabies vaccine, administered alone or with RIG, is associated with significant and unnecessary costs and unfavourable benefit-risk ratios regardless to exposure category.
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Affiliation(s)
- Florence Ribadeau Dumas
- Université Paris Dauphine, LEDa/LEGOS, F-75016, Paris, France; Institut Pasteur, Unité Dynamique des lyssavirus et adaptation à l'hôte, National Reference Center for Rabies, F-75015 Paris, France; Institut Pasteur, CAR/CMIP/CINP, F-75015, Paris, France.
| | - Dieynaba S N'Diaye
- IAME, UMR 1137, INSERM, F-75018 Paris, France; UPMC Univ Paris 06, ED393, F-75005, Paris, France; Univ Paris Diderot, Sorbonne Paris Cité, F-75018 Paris, France
| | - Juliette Paireau
- Univ Pierre et Marie Curie, Cellule Pasteur UPMC, F-75015, Paris, France; Institut Pasteur, Unité d'Epidémiologie des Maladies Emergentes, F-75015, Paris, France
| | - Philippe Gautret
- Assistance Publique Hôpitaux de Marseille, CHU Nord, Pôle Infectieux, Institut Hospitalo-Universitaire Méditerranée Infection, F-13015 Marseille, France; Aix Marseille Université, Unité de Recherche en Maladies Infectieuses et Tropicales Emergentes (URMITE), UM63, CNRS 7278, IRD 198, Inserm 1095, Faculté de Médecine, F-13005 Marseille, France
| | - Hervé Bourhy
- Institut Pasteur, Unité Dynamique des lyssavirus et adaptation à l'hôte, National Reference Center for Rabies, F-75015 Paris, France
| | - Claude Le Pen
- Université Paris Dauphine, LEDa/LEGOS, F-75016, Paris, France
| | - Yazdan Yazdanpanah
- IAME, UMR 1137, INSERM, F-75018 Paris, France; AP-HP, Hôpital Bichat, Service de Maladies Infectieuses, F-75018 Paris, France; Univ Paris Diderot, Sorbonne Paris Cité, F-75018 Paris, France
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N'Diaye DS, Schwarzinger M, Obach D, Poissy J, Matheron S, Casalino E, Yazdanpanah Y. Effectiveness and cost of quick diagnostic tests to determine tetanus immunity in patients with a wound in French emergency departments. BMC Infect Dis 2014; 14:603. [PMID: 25407690 PMCID: PMC4246690 DOI: 10.1186/s12879-014-0603-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 10/31/2014] [Indexed: 12/03/2022] Open
Abstract
Background Tétanos Quick Stick® (TQS) is a test for tetanus immunity screening for wounded patients in emergency departments (EDs), but represents additional costs compared with a medical interview on vaccination history. The study objective was to assess the effectiveness and cost of the TQS in French EDs. Methods We performed a model-based analysis that simulates screening of tetanus immunity and risk of tetanus based on prophylaxis administration. Strategies compared were: i) diagnosis of tetanus immunity by “TQS”; ii) “Medical Interview” (current practice). The study population was 1,658,000 French adults seeking ED care for a wound in 2012. Model parameters were estimated based on French national surveillance data, and published literature. Outcome measures were number of tetanus cases, life years gained and costs (2012 €) from a societal perspective. Results Use of TQS had negligible impact on health outcomes (0.02 tetanus cases/year in France vs. 0.41 for “Medical Interview”), but resulted in a decrease in annual costs of €2,203,000 (-42%). Base case and sub-group analysis showed that with the same effectiveness, the average cost per patient was: €13 with “Medical Interview” vs. €11.7 with TQS for the overall cohort; €28.9 with “Medical Interview” vs. €21 with “TQS” for tetanus-prone wounds; €15 with “Medical Interview” vs. €14.1 with “TQS” for patients aged ≥65 years; and €6.2 with “Medical Interview” vs. €7.8 with “TQS” for non-tetanus-prone wounds. Conclusions Use of TQS is as effective and less costly than “Medical Interview” when applied in ED to wounded patients with tetanus-prone wounds or aged ≥65 years. However, it is more expensive in patients with non-tetanus-prone wounds. Electronic supplementary material The online version of this article (doi:10.1186/s12879-014-0603-3) contains supplementary material, which is available to authorized users.
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