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Protocol of an individual participant data meta-analysis to quantify the impact of high ambient temperatures on maternal and child health in Africa (HE 2 AT IPD)

Lakhoo, Darshnika Pemi, Chersich, Matthew Francis, Jack, Chris, Maimela, Gloria, Cissé, Guéladio, Solarin, Ijeoma, Ebi, Kristie L, Chande, Kshama S, Dumbura, Cherlynn, Makanga, Prestige Tatenda, van Aardenne, Lisa, Joubert, Bonnie R, McAllister, Kimberly A, Ilias, Maliha, Makhanya, Sibusisiwe, Luchters, Stanley, Parker, Craig, Mavindidze, Zororo, Kloppers, Pierre, Wolski, Piotr, Tall, Abdoulaye, Vanga, Adja Ferdinand, Koné, Brama, Boyer, Christopher, Sibanda, Euphemia, Mavhu, Webster, Machingura, Fortunate, Mlambo, Reason, Baloyi, Gciniwe D, Waljee, Akbar K and Zhu, Ji (2024) 'Protocol of an individual participant data meta-analysis to quantify the impact of high ambient temperatures on maternal and child health in Africa (HE 2 AT IPD)'. BMJ Open, Vol 14, Issue 1.

bmjopen-2023-077768.pdf - Published Version
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Globally, recognition is growing of the harmful impacts of high ambient temperatures (heat) on health in pregnant women and children. There remain, however, major evidence gaps on the extent to which heat increases the risks for adverse health outcomes, and how this varies between settings. Evidence gaps are especially large in Africa. We will conduct an individual participant data (IPD) meta-analysis to quantify the impacts of heat on maternal and child health in sub-Saharan Africa. A detailed understanding and quantification of linkages between heat, and maternal and child health is essential for developing solutions to this critical research and policy area.

Methods and analysis:
We will use IPD from existing, large, longitudinal trial and cohort studies, on pregnant women and children from sub-Saharan Africa. We will systematically identify eligible studies through a mapping review, searching data repositories, and suggestions from experts. IPD will be acquired from data repositories, or through collaboration with data providers. Existing satellite imagery, climate reanalysis data, and station-based weather observations will be used to quantify weather and environmental exposures. IPD will be recoded and harmonised before being linked with climate, environmental, and socioeconomic data by location and time. Adopting a one-stage and two-stage meta-analysis method, analytical models such as time-to-event analysis, generalised additive models, and machine learning approaches will be employed to quantify associations between exposure to heat and adverse maternal and child health outcomes.

Ethics and dissemination:
The study has been approved by ethics committees. There is minimal risk to study participants. Participant privacy is protected through the anonymisation of data for analysis, secure data transfer and restricted access. Findings will be disseminated through conferences, journal publications, related policy and research fora, and data may be shared in accordance with data sharing policies of the National Institutes of Health. PROSPERO registration number: CRD42022346068.

Item Type: Article
Corporate Authors: HE2AT Center IPD Study Group
Subjects: WA Public Health > Health Problems of Special Population Groups > WA 309 Women's health
WQ Obstetrics > WQ 20 Research (General)
WS Pediatrics > WS 20 Research (General)
Faculty: Department: Clinical Sciences & International Health > International Public Health Department
Digital Object Identifer (DOI):
SWORD Depositor: JISC Pubrouter
Depositing User: JISC Pubrouter
Date Deposited: 09 Feb 2024 12:28
Last Modified: 09 Feb 2024 12:28


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