Evidence map›Paper›PMID 42662648›Full record

ArticleThe Pan African medical journal2026

[Impact of introducing a fifth monthly cycle of seasonal malaria chemoprevention among children aged 3 to 59 months: a quasi-experimental difference-in-differences study in the Zinder Region, Niger].

Almoustapha Mahamane Wazodan, Mahaman Moustapha Lamine, Ibrahim Alkassoum, Mahamadou Doutchi, Éric Adehossi, Léon Savadogo

Abstract readEnglish Abstract
In one paragraph

Article in The Pan African medical journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Almoustapha Mahamane WazodanEcole Doctorale de Sciences et Techniques, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso.
Mahaman Moustapha LamineLab-EGB2S, CFRMT-UAM, Département des Sciences Biologiques, Université André Salifou, Zinder, Niger.
Ibrahim AlkassoumCentre de Formation et de Recherche en Médecine Tropicale, Faculté des Sciences de la Santé, Niamey, Niger.
Mahamadou DoutchiDépartement de Médecine et Spécialités Médicales, Faculté des Sciences de la Santé, CFRMT-UAM, Université André Salifou, Zinder, Niger.
Éric AdehossiCentre de Formation et de Recherche en Médecine Tropicale, Faculté des Sciences de la Santé, Niamey, Niger.
Léon SavadogoInstitut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The addition of a fifth monthly cycle to seasonal malaria chemoprevention (SMC) has been proposed to extend protection during prolonged transmission seasons in the Sahel. This study evaluated the effect of introducing a fifth SMC cycle on malaria incidence and on the utilization of malaria diagnostic and treatment services in the Takieta health district, Niger. We conducted a quasi-experimental, non-randomized, before-and-after study with a comparison group ("here-elsewhere" design), using routine health data from 19 integrated health centers across two health districts between 2020 and 2023. Nine health centers implemented five monthly SMC cycles (SMC5), while ten continued the standard four-cycle strategy. Data were extracted from the national health information system. A fixed-effects difference-in-differences (DiD) model was applied to estimate the impact of the fifth SMC cycle on malaria incidence, rapid diagnostic test (RDT) utilization, RDT positivity rates, and artemisinin-based combination therapy (ACT) consumption. The introduction of a fifth SMC cycle was associated with a significant reduction in malaria incidence, corresponding to a decrease of 2.44 cases per 1,000 population during the intervention period. This reduction was accompanied by a 2.99% improvement in health service performance and a significant decline in RDT positivity rates (p = 0.003). However, the difference-in-differences coefficients for RDT use (158.59) and ACT use (153.05) were not statistically significant, indicating that SMC5 had no measurable impact on reducing the use of diagnostic tests or antimalarial treatments. The addition of a fifth monthly cycle of seasonal malaria chemoprevention was associated with a reduction in malaria incidence in the study districts during the intervention period. However, no corresponding reduction in RDT or ACT consumption was observed. These findings suggest that extending SMC coverage by one additional month may reduce malaria burden without significantly altering the use of diagnostic or treatment services in health facilities.

Indexed as

AntimalarialsArtemisininsChemopreventionMalariaChild, PreschoolFemaleHumansIncidenceInfantNigerRapid Diagnostic TestsSeasonsAntimalarialsartemisininArtemisininsfifth cycleImpactNigerseasonal malaria chemoprevention

Identifiers

PMID42662648
PMCPMC13521423

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.