Multilevel modelling of the risk of malaria among children aged under five years in Nigeria

Victor M. Oguoma, Anayochukwu E. Anyasodor, Adeniyi O. Adeleye, Obiora A. Eneanya, Evaristus C. Mbanefo

    Research output: Contribution to journalArticlepeer-review

    Abstract

    BACKGROUND: Malaria is still a major cause of morbidity and mortality among children aged <5 y (U5s). This study assessed individual, household and community risk factors for malaria in Nigerian U5s. 

    METHODS: Data from the Nigerian Malaria Health Indicator Survey 2015 were pooled for analyses. This comprised a national survey of 329 clusters. Children aged 6-59 mo who were tested for malaria using microscopy were retained. Multilevel logit model accounting for sampling design was used to assess individual, household and community factors associated with malaria parasitaemia. 

    RESULTS: A total of 5742 children were assessed for malaria parasitaemia with an overall prevalence of 27% (95% CI 26 to 28%). Plasmodium falciparum constituted 98% of the Plasmodium species. There was no significant difference in parasitaemia between older children and those aged ≤12 mo. In adjusted analyses, rural living, northwest region, a household size of >7, dependence on river and rainwater as primary water source were associated with higher odds of parasitaemia, while higher wealth index, all U5s who slept under a bed net and dependence on packaged water were associated with lower odds of parasitaemia. 

    CONCLUSION: Despite sustained investment in malaria control and prevention, a quarter of the overall study population of U5s have malaria. Across the six geopolitical zones, the highest burden was in children living in the poorest rural households.

    Original languageEnglish
    Pages (from-to)482-494
    Number of pages13
    JournalTransactions of the Royal Society of Tropical Medicine and Hygiene
    Volume115
    Issue number5
    Early online date18 Sep 2020
    DOIs
    Publication statusPublished - 8 May 2021

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