Analyzing implementation of public health interventions: A need for rigor, and the challenges of stakeholder involvement.

OBJECTIVES: This article shows how conceptual models can help to develop and evaluate public health interventions. It also reports on the challenges of getting stakeholders involved. METHOD: The analysis is based on the reflexive approach applied by the authors during their participation in two public health intervention research (PHIR) projects, in France and in Burkina Faso. RESULTS: In Paris, PHIR aimed to enable sub-Saharan immigrants to appropriate the existing means of prevention and sexual health care and to strengthen their empowerment in view of preserving their health. Evaluation was carried out using mixed methods. The intervention process theory is based on Ninacs' conceptual model of individual empowerment. The Consolidated Framework For Implementation Research (CFIR) was mobilized a posteriori to analyze the process. PHIR stemmed from collaboration between a research team and two associations. The different stakeholders were involved in the evaluation process, as were, at certain times, persons in highly precarious situations. In Ouagadougou, a community-based dengue vector control intervention was deployed to address an essential but neglected need. As regards evaluation, we opted for a holistic, mixed method approach (effectiveness and process). The contents of the intervention were determined based on tacit knowledge, a community preference survey and solid evidence. The theoretical framework of the intervention consisted in an eco-biological model of vector control. The implementation analysis combined an internal assessment of implementation fidelity with an external CFIR process analysis. All stakeholders were involved in the evaluation process. DISCUSSION: Analysis confirmed not only the value of process evaluations in PHIR, but also the primordial importance of a rigorous approach. Stakeholder involvement is a major challenge to be addressed early in the planning of RISPs; with this in mind, effective and ethically sound assessment mechanisms need to be drawn up. Interdisciplinary evaluative approaches should be preferred, and the use of justified, relevant, and flexible frameworks is highly recommended. CONCLUSION: Lessons learned for those wishing to engage in the process evaluation of a public health intervention are hereby presented.

Knowledge of COVID-19 and the impact on indigents' access to healthcare in Burkina Faso.

BACKGROUND: COVID-19 constitutes a global health emergency of unprecedented proportions. Preventive measures, however, have run up against certain difficulties in low and middle-income countries. This is the case in socially and geographically marginalized communities, which are excluded from information about preventive measures. This study contains a dual objective, i) to assess knowledge of COVID-19 and the preventive measures associated with it concerning indigents in the villages of Diebougou's district in Burkina Faso. The aim is to understand if determinants of this understanding exist, and ii) to describe how their pathways to healthcare changed from 2019 to 2020 during the COVID-19 pandemic. METHODS: The study was conducted in the Diebougou healthcare district, in the south-west region of Burkina Faso. We relied on a cross-sectional design and used data from the fourth round of a panel survey conducted among a sample of ultra-poor people that had been monitored since 2015. Data were collected in August 2020 and included a total of 259 ultra-poor people. A multivariate logistic regression to determine the factors associated with the respondents' knowledge of COVID-19 was used. RESULTS: Half of indigents in the district said they had heard about COVID-19. Only 29% knew what the symptoms of the disease were. The majority claimed that they protected themselves from the virus by using preventive measures. This level of knowledge of the disease can be observed with no differences between the villages. Half of the indigents who expressed themselves agreed with government measures except for the closure of markets. An increase of over 11% can be seen in indigents without the opportunity for getting healthcare compared with before the pandemic. CONCLUSIONS: This research indicates that COVID-19 is partially known and that prevention measures are not universally understood. The study contributes to reducing the fragmentation of knowledge, in particular on vulnerable and marginalized populations. Results should be useful for future interventions for the control of epidemics that aim to leave no one behind.

Factors associated with the acceptability of government measures to address COVID-19 in Senegal.

INTRODUCTION: Three months after the first appearance of the new coronavirus (COVID-19), Senegal recorded its first case on March 2, 2020. Faced with this pandemic, the State reacted quickly with public measures : instituting a curfew, placing a ban on travel between regions, and closing shops and places of worship. This research aims to study the acceptability of these non-pharmaceutical measures by the Senegalese population. METHOD: This study was a cross-sectional and analytical survey conducted in June and July 2020 among Senegalese over 18 years old. Sampling by the representative quota method was distributed proportionally to age, gender and region. We constructed the questionnaire using the theoretical framework of acceptability of health interventions. Through a telephone call center synchronised to an internet server, we collected data on personal characteristics, knowledge of the disease, trust in information sources, trust in government, concern about the pandemic, and the seven dimensions of acceptability. We performed descriptive analysis and structural equation with R software version 4.0.2. RESULTS: This study included a total of 813 individuals. The average age was 34.7 years ( ± 14.2 years). They were predominantly male (54.6 %), with no education (42.6 %). The increased level of knowledge of the disease was associated with confidence in national media information sources provided by the administrative and health authorities (ß=0.11, p<0.01). The increase in the level of trust in the government in response to COVID-19 was positively related to the acceptability of curfew (ß=0.16, p<0.001), travel ban between regions (ß=0.11, p<0.001), and closure of places of worship (ß=0.1, p<0.01) and markets (ß=0.09, p<0.01). CONCLUSION: In Senegal, the acceptability of the measures depended on knowledge of the disease, perception of the risk of the disease, and trust in the government. There is a need to strengthen awareness and risk communication of COVID-19.

The COVID-19 pandemic in francophone West Africa: from the first cases to responses in seven countries.

BACKGROUND: In early March 2020, the COVID-19 pandemic hit West Africa. In response, countries in the region quickly set up crisis management committees and implemented drastic measures to stem the spread of the SARS-CoV-2 virus. The objective of this article is to analyse the epidemiological evolution of COVID-19 in seven Francophone West African countries (Benin, Burkina Faso, Côte d'Ivoire, Guinea, Mali, Niger, Senegal) as well as the public health measures decided upon during the first 7 months of the pandemic. METHODS: Our method is based on quantitative and qualitative data from the pooling of information from a COVID-19 data platform and collected by a network of interdisciplinary collaborators present in the seven countries. Descriptive and spatial analyses of quantitative epidemiological data, as well as content analyses of qualitative data on public measures and management committees were performed. RESULTS: Attack rates (October 2020) for COVID-19 have ranged from 20 per 100,000 inhabitants (Benin) to more than 94 per 100,000 inhabitants (Senegal). All these countries reacted quickly to the crisis, in some cases before the first reported infection, and implemented public measures in a relatively homogeneous manner. None of the countries implemented country-wide lockdowns, but some implemented partial or local containment measures. At the end of June 2020, countries began to lift certain restrictive measures, sometimes under pressure from the general population or from certain economic sectors. CONCLUSION: Much research on COVID-19 remains to be conducted in West Africa to better understand the dynamics of the pandemic, and to further examine the state responses to ensure their appropriateness and adaptation to the national contexts.

Participating in a vaccine trial for COVID-19 in Senegal: trust and information.

This research aims to understand the level and determinants of people's willingness to participate in a vaccine trial for COVID-19 in Senegal. We conducted a telephone survey among a marginal quota sample of 607 people over 18 years of age. Only 44.3% of the participants wanted to participate in a vaccine trial for COVID-19, with females intending to participate more than males (AOR = 1.82, 95% CI [1.22-2.72]). Participants who intended to be vaccinated against COVID-19 (AOR = 6.48, 95% CI [4.12-10.4]) and who thought that being infected with the coronavirus would have a significant impact on their health (AOR = 2.34, 95% CI [1.57, 3.51]) were more likely to agree to take part in the COVID-19 vaccine trial. Confidence in the vaccine, health personnel, and the government in the fight against the pandemic are key factors in participants' willingness to participate in a vaccine trial in Senegal.

[Improving provision of mother-and-child care in Chad at the community level: A quasi-experimental study]. / Amélioration de l'offre et de la demande de soins de santé maternelle et infantile au Tchad : une étude quasi-expérimentale.

BACKGROUND: Chad is among the countries with the highest maternal and infant mortality rates in the world. An initiative aimed at improving mother-and-child health services was implemented from 2016 to 2019 in three rural health districts in southern Chad, with strong community input, while concomitantly increasing the supply and demand for care. The objective of this study is to evaluate the effects of this program on health service use. METHODS: Interrupted time-series analyses with a control group was used to measure the effects of the intervention by applying a quasi-experimental approach. Monthly attendance data were collected from the registries of the 18 health centres that participated in the program and 18 centres that did not participate (control group), before (18 months) and after (24 months) the start of implementation. RESULTS: On average, there were 10.98 (95% CI: 6.57-15.39, P<0.001) additional paediatric visits and 0.68 additional deliveries (95% CI: 0.42-0.95, P<0.001) each month in the participation group compared to the control group. Community involvement decisively contributed to the change. CONCLUSION: During the 24 months of implementation, the initiative significantly increased the use of essential mother-and-child health services in Chad. This study highlights the benefits of a strong partnership with communities trained and involved in health system activities, with the objective of achieving universal health coverage.

[The cholera epidemic in Haiti: the story of a United Nations fiasco and the perseverance of a (collective) French researcher]. / L'épidémie de choléra en Haïti: histoire d'un fiasco des Nations Unies et de la persévérance d'un (collectif) chercheur français: Tribune à partir de la lecture de « Choléra; Haïti 2010-2018, histoire d'un désastre ¼ par Renaud Piarroux, Cnrs ­ 2019.

SAt a time when the Covid-19 pandemic is wreaking havoc around the world, it is certainly useful to take a step back epidemiologically. Reading Renaud Piarroux's book on his experience of fighting the cholera epidemic in Haiti between 2010 and 2018 is rich in lessons. It shows the fiasco and the wanderings of the United Nations system and some of its executives, but also the narrow vision of French diplomats and global health officials. But the book is also valuable for understanding the academic functioning of global public health, in the image of the contemporary Covidian disaster: biomedical public health, oriented towards certain diseases in particular, without an interdisciplinary vision and with its share of excesses, abuse and scientific clientelism. Students and young researchers should be able to use this analysis to change the situation…in the hope that they will be given space.

Effect of a free healthcare policy on health services utilisation for non-malarial febrile illness by children under five years in Burkina Faso: an interrupted time series analysis.

OBJECTIVE: To assess the effect of a free healthcare policy for children under five years old implemented in Burkina Faso since April 2016, on the use of health care of non-malarial febrile illnesses (NMFI). METHODS: To assess the immediate and long-term effect of the free healthcare policy in place, we conducted an interrupted time series analysis of routinely collected data on febrile illnesses from three urban primary health centres of Ouagadougou between 1 January 2015 and 31 December 2016. RESULTS: Of the 39 046 febrile cases reported in the study period, 17 017 NMFI were included in the study. Compared to the period before the intervention, we observed an immediate, non-statistically significant increase of 7% in the number of NMFI (IRR = 1.07; 95% CI = 0.75, 1.51). Compared to the trend that would have been expected in absence of the intervention, the results showed a small but sustained increase of 6% in the trend of monthly number of NMFI during the intervention period (IRR = 1.06; 95%CI = 1.01, 1.12). CONCLUSION: Our study highlighted an increase in the uptake of healthcare services, specifically for NMFI by children under five years of age, after the implementation of a free care policy. This analysis contributes to informing decision makers on the need to strengthen the capacities of healthcare centres and to anticipate the challenges of the sustainability of this policy.

OBJECTIF: Evaluer l'effet d'une politique de gratuité des soins pour les enfants de moins de cinq ans mise en œuvre au Burkina Faso depuis avril 2016, sur l'utilisation des soins de santé des maladies fébriles non paludiques (MFNP). MÉTHODES: Pour évaluer l'effet immédiat et à long terme de la politique de gratuité des soins en place, nous avons mené une analyse des données de séries chronologiques interrompues collectées en routine sur les maladies fébriles dans trois centres de santé primaires urbains de Ouagadougou entre le 1er janvier 2015 et le 31 décembre 2016. RÉSULTATS: Sur les 39.046 cas fébriles signalés au cours de la période d'étude, 17.017 MFNP ont été inclus dans l'étude. Par rapport à la période précédant l'intervention, nous avons observé une augmentation immédiate et non statistiquement significative de 7% du nombre de MFNP (IRR = 1,07; IC95%: 0,75 à 1,51). Par rapport à la tendance à laquelle on aurait pu s'attendre en l'absence d'intervention, les résultats ont montré une augmentation faible mais soutenue de 6% de la tendance du nombre mensuel de MFNP pendant la période d'intervention (TRI = 1,06; IC95%: 1,01 à 1,12 ). CONCLUSION: Notre étude a mis en évidence une augmentation de l'utilisation des services de santé, en particulier pour les MFNP pour les enfants de moins de cinq ans, après la mise en œuvre d'une politique de gratuité des soins. Cette analyse contribue à informer les décideurs sur la nécessité de renforcer les capacités des centres de santé et d'anticiper les enjeux de la pérennité de cette politique.

[Recurrence of dengue epidemics in Burkina Faso: Community preference for an intervention to prevent the disease]. / Épidémies récurrentes de la dengue au Burkina Faso : préférences communautaires pour une intervention de prévention de la maladie.

BACKGROUND: Community-based interventions have proven effective in several Latin American countries in controlling dengue vector Aedes aegypti and reducing the burden of the disease. However, we did not find any study reporting the assessment or implementation of such interventions in Sub-Saharan Africa. This article presents local communities' preferences for activities as part of the implementation of a community-based intervention for dengue prevention in Ouagadougou (Burkina Faso) where dengue epidemics are recurrent during the rainy season. METHODS: A mixed-method study combining qualitative and quantitative data collection was conducted. Information from 983 households and their preferences for community-based activities for dengue prevention were collected in five neighborhoods of the city using a quantitative questionnaire. Then, 15 qualitative focus groups were organized in one of the neighborhoods that was randomly selected to receive a community-based intervention for dengue prevention. These groups were made up of 216 people representing the different socio-cultural categories: community leaders, men, women, young girls and boys. RESULTS: More than 95% of household respondents to the quantitative questionnaire found community-based interventions acceptable and/or useful: to raise awareness of mosquito-borne disease transmission, to identify and remove the mosquito breeding sites and areas favorable to the development of the adult vectors. Most participants in the focus groups, preferred outreach activities such as video/debate sessions, school and home education sessions, focus groups. They also preferred the implementation of community working groups, responsible for identifying and eliminating mosquito breeding sites in the neighborhood. However, many participants had reservations about sending preventive text messages to residents. They found it feasible but not useful since most people cannot read. CONCLUSION: This study shows that it is important to get the local communities involved in the formulation of health prevention activities in sub-Saharan Africa where some interventions are often implemented using strategies from other continents.

Firth global symposium on research of healthcare système, Liverpool (United Kingdom), October 8-12, 2018.

The most recent international symposium on research on healthcare systems took place in Liverpool in October, 2018. Its theme was the promotion of healthcare systems for all in the era of the Sustainable Development Goals. This biennial event is the occasion to bring together all the players in this domain- researchers, policy-makers, and field workers - to share the newest work. Numerous subjects were raised, some of them mentioned in the article: quality of care in healthcare systems through the necessary improvement in the practices of professionals, the issues of scaling up health interventions, mobilization of knowledge for the development of public policy, and the role of the private sector. Although this field has developed greatly over the past 20 years and has become central in both development aide and international health, it remains relatively little known in the French-speaking world and France is largely absent from it.

How far is mixed methods research in the field of health policy and systems in Africa? A scoping review.

Both the academic and the policy community are calling for wider application of mixed methods research, suggesting that combined use of quantitative and qualitative methods is most suitable to assess and understand the complexities of health interventions. In spite of recent growth in mixed methods studies, limited efforts have been directed towards appraising and synthetizing to what extent and how mixed methods have been applied specifically to Health Policy and Systems Research (HPSR) in low- and middle-income countries (LMICs). We aimed at filling this gap in knowledge, by exploring the scope and quality of mixed methods research in the African context. We conducted a scoping review applying the framework developed by Arksey and O'Malley and modified by Levac et al. to identify and extract data from relevant studies published between 1950 and 2013. We limited our search to peer-reviewed HPSR publications in English, which combined at least one qualitative and one quantitative method and focused on Africa. Among the 105 studies that were retained for data extraction, over 60% were published after 2010. Nearly 50% of all studies addressed topics relevant to Health Systems, while Health Policy and Health Outcomes studies accounted respectively for 40% and 10% of all publications. The quality of the application of mixed methods varied greatly across studies, with a relatively small proportion of studies stating clearly defined research questions and differentiating quantitative and qualitative elements, including sample sizes and analytical approaches. The methodological weaknesses observed could be linked to the paucity of specific training opportunities available to people interested in applying mixed methods to HPSR in LMICs as well as to the limitations on word limit, scope and peer-review processes at the journals levels. Increasing training opportunities and enhancing journal flexibility may result in more and better quality mixed methods publications.

Primary healthcare providers' practices related to non-malarial acute febrile illness in Burkina Faso.

Background: In Africa, fever is the main reason for consultation, with malaria playing a prominent role. Studies have reported that the widespread use of rapid diagnostic tests for malaria, implemented since 2010, has revealed an increasing proportion of non-malaria acute febrile illnesses (NMAFI). It is an important public health issue because evidence shows that mortality is higher among patients presenting with non-malarial fever than among those with malaria. Methods: This cross-sectional study assessed the professional practices of healthcare providers in the management of NMAFI in urban and rural sites in Burkina Faso. Data was collected from 286 healthcare providers through a questionnaire based on the clinical situation in 2014. Factors have been associated using a hierarchical linear mixed model with random intercepts to model dependence of outcomes for healthcare providers working on the same site. Results: Survey results showed limited knowledge about management of NMAFI, global survey score on General Practice Indicator being 60% (36.02/60.00). This gap was more evident at the admission and diagnosis level. The study's population from rural areas had better survey score than that of urban areas concerning the respect of adequacy diagnosis, treatment and use of antibiotics in NMAFI, 15.71 vs 13.93 mean score (p=0.01) (75 vs 66% on a 0 to 100% scale, with 100% being the best). Overall, more educated participants performed relatively better. A total of 46% (134/286) of participants felt that they needed training in at least one of the fever-related issues. Conclusions: Increased awareness and knowledge of management for NMAFI are urgently required in Burkina Faso. This must be done through regular supervision and training courses targeted specifically at primary healthcare providers.

The implementation of public health interventions in Africa: a neglected strategic theme.

Organizing effective public health interventions is required to improve population health and reduce social inequalities in health. However, measuring their effectiveness is not enough; we must also understand how these interventions are implemented and what role is played by the context and the social actors. Today, it seems that the importance of studying intervention implementation by public health actors (stakeholders, policy makers, donors, and researchers) has not yet been sufficiently considered. In this Tribune, we wish to draw the attention of the public health community, including that interested in interventions in Africa, to the need to analyze their implementation in depth. We must produce empirical and theoretical knowledge about implementation but also train students and young researchers more effectively in this scientific approach, which, although indispensable, has been ignored too long.

Effectiveness of demand generation interventions on use of modern contraceptives in low- and middle-income countries.

OBJECTIVES: To synthesise evidence on the implementation, costs and cost-effectiveness of demand generation interventions and their effectiveness in improving uptake of modern contraception methods. METHODS: A Cochrane systematic review was conducted. Searches were performed in electronic databases (MEDLINE, EMBASE) and the grey literature. Randomised controlled trials, cluster randomised trials and quasi-experimental studies, including controlled before-after studies (CBAs) and cost and cost-effectiveness studies that aimed to assess demand interventions (including community- and facility-based interventions, financial mechanisms and mass media campaigns) in low- and middle-income countries were considered. Meta-analyses and narrative synthesis were conducted. RESULTS: In total, 20 papers meeting the inclusion criteria were included in this review. Of those, 13 were used for meta-analysis. Few data were available on implementation and on the influence of context on demand interventions. Involving family members during counselling, providing education activities and increasing exposure to those activities could enhance the success of demand interventions. Demand generation interventions were positively associated with increases in current use (pooled OR 1.57; 95% CI: 1.46-1.69, P < 0.01). Financial mechanism interventions (vouchers) appeared effective to increase use of modern contraceptive methods (pooled OR 2.16; 95% CI: 1.91-2.45, P < 0.01; I2 = 0%). Demand interventions improved knowledge (pooled OR 1.02; 95% CI 0.63-1.64, P = 0.93) and attitudes towards family planning and improved discussion with partners/husbands around modern contraceptive methods. However, given the limited number of studies included in each category of demand generation interventions, the dates of publication of the studies and their low quality, caution is advised in considering the results. Very limited evidence was available on costs; studies including data on costs were old and inconsistent. CONCLUSION: Demand generation interventions contribute to increases in modern contraceptive methods use. However, more studies with robust designs are needed to identify the most effective demand generation intervention to increase uptake of modern contraceptive methods. More evidence is also needed about implementation, costs and cost-effectiveness to inform decisions on sustainability and scaling-up.

The impact of user fee removal policies on household out-of-pocket spending: evidence against the inverse equity hypothesis from a population based study in Burkina Faso.

BACKGROUND: User fee removal policies have been extensively evaluated in relation to their impact on access to care, but rarely, and mostly poorly, in relation to their impact on household out-of-pocket (OOP) spending. This paucity of evidence is surprising given that reduction in household economic burden is an explicit aim for such policies. Our study assessed the equity impact on household OOP spending for facility-based delivery of the user fee reduction policy implemented in Burkina Faso since 2007 (i.e., subsidised price set at 900 Communauté Financière Africaine francs (CFA) for all, but free for the poorest). Taking into account the challenges linked to implementing exemption policies, we aimed to test the hypothesis that the user fee reduction policy had favoured the least poor more than the poor. METHODS: We used data from six consecutive rounds (2006-2011) of a household survey conducted in the Nouna Health District. Primary outcomes are the proportion of households being fully exempted (the poorest 20% according to the policy) and the actual level of household OOP spending on facility-based delivery. The estimation of the effects relied on a Heckman selection model. This allowed us to estimate changes in OOP spending across socio-economic strata given changes in service utilisation produced by the policy. FINDINGS: A total of 2,316 women reported a delivery between 2006 and 2011. Average household OOP spending decreased from 3,827 CFA in 2006 to 1,523 in 2011, without significant differences across socio-economic strata, neither in terms of households being fully exempted from payment nor in terms of the amount paid. Payment remained regressive and substantially higher than the stipulated 900 CFA. CONCLUSIONS: The Burkinabè policy led to a significant and sustained reduction in household OOP health spending across all socio-economic groups, but failed to properly target the poorest by ensuring a progressive payment system.

[Health staff workload in a context of user fees exemption policy for health care in Burkina Faso and Niger]. / La charge de travail des agents de santé dans un contexte de gratuité des soins au Burkina Faso et au Niger.

User fees exemption policy supported by NGOs in Burkina Faso and Niger resulted in a higher utilization of health services in primary health care facilities. We conducted a survey in 2 health districts in Burkina Faso and Niger in 2011. The study objective was to assess whether the higher utilization associated with the user fees exemption policy, may result in an overload for health staff at the front line in health facilities. The WHO's recommended WISN method was used to compute a ratio of actual/required staff using a comparative study with 4 control facilities and 4 intervention sites where the user fees exemption policy was provided by local NGOs in both countries. Overall, 8 primary health facilities both in Burkina Faso and Niger were involved. In Burkina Faso, the ratio was ≥1 in all facilities both control and intervention, i.e. a sufficient staff in facilities. In Niger, 3 out of the 4 intervention facilities in Keita district were found to have a ratio ≤1, i.e. understaffed. In the 4 control facilities, the staff was sufficient with a ratio ≥1. In Burkina Faso, the actual number of staff in facilities appeared enough to face the higher utilization of health services that may follow the user fees exemption policy supported by local NGOs unlike Niger where we found that the actual number of staff was insufficient to face a possible higher utilization resulting from the same policy in intervention facilities.

Improving equity by removing healthcare fees for children in Burkina Faso.

BACKGROUND: This study evaluated the effects on healthcare access inequities of an intervention exempting children under 5 years from user fees in Burkina Faso. METHODS: The design consisted of two complementary studies. The first was an interrupted time series (56 months before and 12 months after) study of daily curative consultations according to distance (<5, 5-9 and ≥10 km) in a stratified random sample of 18 health centres: 12 with the intervention and 6 without. The second was a household panel survey (n=1214) assessing the evolution of health-seeking behaviours. Multilevel regression was used throughout. RESULTS: Attendance doubled under the intervention, after adjusting for Centres de Santé et de Promotion Sociale size, districts, secular trend and seasonal variation. Utilisation increased for all distance ranges and in all of the 12 health centres of the intervention area. The exemption benefited all children (rate ratios (RR)=1.52 (1.23 to 1.88)), whether their health needs were high (RR=1.69 (1.22 to 2.32)) or not (RR=1.46 (1.10 to 1.93)) and whether the children lived near (RR=1.42 (1.09 to 1.85)) or far from a health centre (RR=1.79 (1.31 to 2.43)). The exemption benefited the children of poor families when health need was high and services near (RR=5.23; (1.30 to 20.99)). The amount saved for a child's treatment by the exemption was on average and median 2500 F CFA (≈US$5). CONCLUSIONS: Exempting children under five from user fees is effective and helps reduce inequities of access. It benefits vulnerable populations, although their service utilisation remains constrained by limitations in geographic accessibility of services.

[Pragmatism and realism for public health intervention evaluation]. / Pragmatisme et réalisme pour l'évaluation des interventions de santé publique.

Forty years ago, Schwartz and Lellouch invented pragmatic clinical trials. Their proposal has not yet been fully espoused. This appears to be the case today also in the domain of public health interventions evaluation, where some still insist on the superiority of experimental methods. Yet evaluations of complex public health interventions are fraught with pitfalls for researchers. Most such interventions take place in natural experimental contexts, where they have no control over the context or the factors that modify implementation and influence the effects. Experimental approaches are, in these cases, not very appropriate, and yet decision makers want to be able to take decisions to improve them. This article presents our experience over the past 5years with evaluative research in two public health interventions. We wish to show how we conduct evaluations in practice using a pragmatic approach. The article is focused on elements that have not, to date, received much attention in the francophone literature: the evaluability assesment and intervention logic, research strategies reinforced particularly by mixed methods and time series, and the analysis of implementation fidelity and mechanisms that foster effectiveness. Because the pragmatic approach to evaluative research stresses the need for good understanding of context and uses reinforced methodological strategies, it allows for rigorous responses to evaluation questions raised by those implementing complex public health interventions. Thus, experimental approaches are not necessarily required to analyze the effectiveness of interventions.