About: Estimating the local spatio-temporal distribution of disease from routine health information systems: the case of malaria in rural Madagascar

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About: Estimating the local spatio-temporal distribution of disease from routine health information systems: the case of malaria in rural Madagascar Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Estimating the local spatio-temporal distribution of disease from routine health information systems: the case of malaria in rural Madagascar
Creator	Barry, Michele Bonds, Matthew Andriambolamanana, Herinjaka Andrianirinarison, Jean-Claude Cordier, Laura Garchitorena, Andres Hyde, Elizabeth Ihantamalala, Felana Miller, Ann Nambinisoa, Mauricette Randriamanambintsoa, Marius Razafinjato, Benedicte
Source	MedRxiv
abstract	Background: Reliable surveillance systems are essential for identifying disease outbreaks and allocating resources to ensure universal access to diagnostics and treatment for endemic diseases. Yet, most countries with high disease burdens rely entirely on facility-based passive surveillance systems, which miss the vast majority of cases in rural settings with low access to health care. This is especially true for malaria, for which the World Health Organization estimates that routine surveillance detects only 14% of global cases. The goal of this study was to estimate the unobserved burden of malaria missed by routine passive surveillance in a rural district of Madagascar to produce realistic incidence estimates across space and time, less sensitive to heterogeneous health care access. Methods: We use a geographically explicit dataset of the 73,022 malaria cases confirmed at health centers in the Ifanadiana District in Madagascar from 2014 to 2017. Malaria incidence was adjusted to account for underreporting due to stock-outs of rapid diagnostic tests and variable access to healthcare. A benchmark multiplier was combined with a health care utilization index obtained from statistical models of non-malaria patients. Variations to the multiplier and several strategies for pooling neighboring communities together were explored to allow for fine-tuning of the final estimates. Separate analyses were carried out for individuals of all ages and for children under five. Cross-validation criteria were developed based on overall incidence, trends in financial and geographical access to health care, and consistency with geographic distribution in a district-representative cohort. The most plausible sets of estimates were then identified based on these criteria. Results: Passive surveillance was estimated to have missed about 4 in every 5 malaria cases among all individuals and 2 out of every 3 cases among children under five. Adjusted malaria estimates were less biased by differences in populations' financial and geographic access to care. Average adjusted monthly malaria incidence was nearly four times higher during the high transmission season than during the low transmission season. Geographic distribution in the adjusted dataset revealed high transmission clusters in low elevation areas in the northeast and southeast of the district that were stable across seasons and transmission years. Conclusions: Understanding local disease dynamics from routine passive surveillance data can be a key step towards achieving universal access to diagnostics and treatment. Methods presented here could be scaled-up thanks to the increasing availability of e-health disease surveillance platforms for malaria and other diseases across the developing world.
has issue date	2020-08-18(xsd:dateTime)
bibo:doi	10.1101/2020.08.17.20151282
has license	medrxiv
sha1sum (hex)	04f615e804db7903d3612692af7597b50ece065a
schema:url	https://doi.org/10.1101/2020.08.17.20151282
resource representing a document's title	Estimating the local spatio-temporal distribution of disease from routine health information systems: the case of malaria in rural Madagascar
resource representing a document's body	covid:04f615e804db7903d3612692af7597b50ece065a#body_text
is schema:about of	named entity 'settings' named entity 'health care' named entity 'systems' named entity 'case' named entity 'RURAL' named entity 'ENDEMIC DISEASES' named entity 'DISEASE OUTBREAKS' named entity 'UNIVERSAL' named entity 'SETTINGS' named entity 'SURVEILLANCE' named entity 'DIAGNOSTICS' named entity 'missed' named entity 'burden' named entity 'outbreaks' named entity 'Yet' named entity 'endemic' named entity 'rural' named entity 'cases' named entity 'essential' named entity 'malaria' named entity 'Madagascar' named entity 'health care' named entity 'disease outbreaks' named entity 'heterogeneity' named entity 'health systems' named entity 'malaria' named entity 'malaria' named entity 'infectious diseases' named entity 'malaria' named entity 'malaria' named entity 'World Health Organization' named entity 'malaria' named entity 'public health' named entity 'malaria' named entity 'malaria' named entity 'Malaria' named entity 'malaria' named entity 'health care' named entity 'Malaria' named entity 'community health' named entity 'Ifanadiana' named entity 'health care' named entity 'distance decay' named entity 'malaria' named entity 'CC-BY 4.0 International license' named entity 'Harvard Medical School' named entity 'malaria' named entity 'developing countries' named entity 'public health' named entity 'malaria' named entity 'malaria' named entity 'malaria' named entity 'malaria' named entity 'cohort study' named entity 'Ifanadiana' named entity 'socio-demographic' named entity 'health care' named entity 'malaria' named entity 'health care delivery' named entity 'medRxiv' named entity 'Ifanadiana' named entity 'malaria' named entity 'Madagascar' named entity 'malaria' named entity 'malaria' named entity 'Madagascar' named entity 'CC-BY 4.0 International license' named entity 'malaria' named entity 'malaria' named entity 'malaria' named entity 'malaria' named entity 'peer review' named entity 'medRxiv' named entity 'health care'

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