Bonnie Mappin
University of Queensland
28 Papers
4 Citations
Bonnie Mappin is an academic researcher from University of Queensland. The author has contributed to research in topics: Malaria & Public health. The author has an hindex of 18, co-authored 25 publications. Previous affiliations of Bonnie Mappin include University of Oxford.
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Papers
Diagnostic Testing of Pediatric Fevers: Meta-Analysis of 13 National Surveys Assessing Influences of Malaria Endemicity and Source of Care on Test Uptake for Febrile Children under Five Years
Emily White Johansson,Peter W. Gething,Helena Hildenwall,Bonnie Mappin,Max Petzold,Stefan Peterson,Katarina Ekholm Selling +6 more
- 23 May 2024
Abstract: In 2010, the World Health Organization revised guidelines to recommend diagnosis of all suspected malaria cases prior to treatment. There has been no systematic assessment of malaria test uptake for pediatric fevers at the population level as countries start implementing guidelines. We examined test use for pediatric fevers in relation to malaria endemicity and treatment-seeking behavior in multiple sub-Saharan African countries in initial years of implementation.We compiled data from national population-based surveys reporting fever prevalence, care-seeking and diagnostic use for children under five years in 13 sub-Saharan African countries in 2009-2011/12 (n = 105,791). Mixed-effects logistic regression models quantified the influence of source of care and malaria endemicity on test use after adjusting for socioeconomic covariates. Results were stratified by malaria endemicity categories: low (PfPR2-10<5%), moderate (PfPR2-10 5-40%), high (PfPR2-10>40%). Among febrile under-fives surveyed, 16.9% (95% CI: 11.8%-21.9%) were tested. Compared to hospitals, febrile children attending non-hospital sources (OR: 0.62, 95% CI: 0.56-0.69) and community health workers (OR: 0.31, 95% CI: 0.23-0.43) were less often tested. Febrile children in high-risk areas had reduced odds of testing compared to low-risk settings (OR: 0.51, 95% CI: 0.42-0.62). Febrile children in least poor households were more often tested than in poorest (OR: 1.63, 95% CI: 1.39-1.91), as were children with better-educated mothers compared to least educated (OR: 1.33, 95% CI: 1.16-1.54).Diagnostic testing of pediatric fevers was low and inequitable at the outset of new guidelines. Greater testing is needed at lower or less formal sources where pediatric fevers are commonly managed, particularly to reach the poorest. Lower test uptake in high-risk settings merits further investigation given potential implications for diagnostic scale-up in these areas. Findings could inform continued implementation of new guidelines to improve access to and equity in point-of-care diagnostics use for pediatric fevers.
Population coverage of artemisinin-based combination treatment in children younger than 5 years with fever and Plasmodium falciparum infection in Africa, 2003–2015: a modelling study using data from national surveys
Adam Bennett,Donal Bisanzio,Joshua Yukich,Bonnie Mappin,Cristin A Fergus,Michael P. Lynch,Michael P. Lynch,Richard E Cibulskis,Samir Bhatt,Daniel J. Weiss,Ewan Cameron,Peter W. Gething,Thomas P. Eisele +12 more
TL;DR: The results showed that ACT coverage in children younger than 5 years with a fever and P falciparum infection increased across sub-Saharan Africa in 2003–15, but even in 2015, only 19.7% (95% CI 15.6–24.8) of children younger Than 5 years of children with a Fever and Pfalcipareum infection received an ACT.
Standardizing Plasmodium falciparum infection prevalence measured via microscopy versus rapid diagnostic test
Bonnie Mappin,Ewan Cameron,Ursula Dalrymple,Daniel J. Weiss,Donal Bisanzio,Samir Bhatt,Peter W. Gething +6 more
TL;DR: The relationships defined in this research can be applied to RDT-derived PfPR data to effectively convert them to an estimate of the parasite prevalence expected using microscopy (or vice versa), thereby standardizing the dataset and improving the signal-to-noise ratio.