Associations between landscape fires and child morbidity in southern Mozambique: a time-series study

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• dc.contributor.author Curto Tirado, Ariadna, 1987-
• dc.contributor.author Nunes, Jovito
• dc.contributor.author Milà, Carles
• dc.contributor.author Nhacolo, Arsenio
• dc.contributor.author Hänninen, Risto
• dc.contributor.author Sofiev, Mikhail
• dc.contributor.author Valentín, Antònia
• dc.contributor.author Saúte, Francisco
• dc.contributor.author Kogevinas, Manolis
• dc.contributor.author Sacoor, Charfudin
• dc.contributor.author Bassat, Quique
• dc.contributor.author Tonne, Cathryn
• dc.date.accessioned 2024-06-20T07:04:39Z
• dc.date.available 2024-06-20T07:04:39Z
• dc.date.issued 2024
• dc.description.abstract Background: Epidemiological evidence linking exposure to landscape fires to child health remains scarce. We assessed the association between daily landscape fire smoke and child hospital visits and admissions in the Manhiça district, Mozambique, an area characterised by frequent forest and cropland fires. Methods: In this time-series analysis (2012-20), our primary metric for exposure to landscape fires was fire-originated PM2·5 from smoke dispersion hindcasts. We also assessed total and upwind fire exposure using daily satellite-derived fire density data. Daily numbers of hospital visits and admissions were extracted from an ongoing paediatric morbidity surveillance system (children aged ≤15 years). We applied quasi-Poisson regression models controlling for season, long-term trend, day of the week, temperature, and rainfall, and offsetting by annual population-time at risk to examine lag-specific association of fires on morbidity. Findings: A 10 μg/m3 increase in fire-originated PM2·5 was associated with a 6·12% (95% CI 0·37-12·21) increase in all-cause and a 12·43% (5·07-20·31) increase in respiratory-linked hospital visits on the following day. Positive associations were also observed for lag 0 and the cumulative lag of 0-1 days. Null associations were observed for hospital admissions. Landscape fires mostly occurred in forested areas; however, associations with child morbidity were stronger for cropland than for forest fires. Interpretation: Landscape fire smoke was associated with all-cause and respiratory-linked morbidity in children. Improved exposure assessment is needed to better quantify the contribution of landscape fire smoke to child health in regions with scarce air pollution monitoring. Funding: H2020 project EXHAUSTION, Academy of Finland, Spanish Ministry of Science and Innovation, Generalitat de Catalunya, and Government of Mozambique and Spanish Agency for International Cooperation and Development.
• dc.description.sponsorship The work of RH and MS has been performed within the scope of EU H2020 project EXHAUSTION (grant number 820655) and Academy of Finland HEATCOST (grant number 334798). We also acknowledge the use of data and imagery from FIRMS (https://earthdata.nasa.gov/firms), part of NASA's Earth Observing System Data and Information System. ISGlobal receives support from the grant CEX2018–000806-S funded by MCIN/AEI/10·13039/501100011033, and support from the Generalitat de Catalunya through the Centres de Recerca de Catalunya Program. CISM is supported by the Government of Mozambique and the Spanish Agency for International Development.
• dc.format.mimetype application/pdf
• dc.identifier.citation Curto A, Nunes J, Milà C, Nhacolo A, Hänninen R, Sofiev M, et al. Associations between landscape fires and child morbidity in southern Mozambique: a time-series study. Lancet Planet Health. 2024 Jan;8(1):e41-e50. DOI: 10.1016/S2542-5196(23)00251-6
• dc.identifier.doi http://dx.doi.org/10.1016/S2542-5196(23)00251-6
• dc.identifier.issn 2542-5196
• dc.identifier.uri http://hdl.handle.net/10230/60535
• dc.language.iso eng
• dc.publisher Elsevier
• dc.relation.ispartof Lancet Planet Health. 2024 Jan;8(1):e41-e50
• dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/820655
• dc.relation.projectID info:eu-repo/grantAgreement/ES/2PE/CEX2018–000806-S
• dc.rights © 2024 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 license (https://creativecommons.org/licenses/by-nc-nd/4.0/).
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
• dc.subject.other Incendis
• dc.subject.other Infants--Salut i higiene
• dc.title Associations between landscape fires and child morbidity in southern Mozambique: a time-series study
• dc.type info:eu-repo/semantics/article
• dc.type.version info:eu-repo/semantics/publishedVersion