Household food insecurity, maternal nutrition, environmental risks and infants’ health outcomes: protocol of the IMPALA birth cohort study in Uganda

Terfa, Zelalem, Nantanda, Rebecca, Lesosky, Maia ORCID: https://orcid.org/0000-0002-2026-958X, Devereux, Graham ORCID: https://orcid.org/0000-0002-0024-4887, Obasi, Angela ORCID: https://orcid.org/0000-0001-6801-8889, Mortimer, Kevin ORCID: https://orcid.org/0000-0002-8118-8871, Khan, Jahangir ORCID: https://orcid.org/0000-0002-6151-764X, Rylance, Jamie ORCID: https://orcid.org/0000-0002-2323-3611 and Niessen, Louis ORCID: https://orcid.org/0000-0002-8639-5191 (2022) 'Household food insecurity, maternal nutrition, environmental risks and infants’ health outcomes: protocol of the IMPALA birth cohort study in Uganda'. BMJ Open, Vol 12, Issue 3, e050729.

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Abstract

Introduction
In low- and middle-income countries (LMICs), food insecurity and undernutrition disproportionately affect women of reproductive age, infants and young children. The disease burden from undernutrition in these vulnerable sections of societies remains a major concern in LMICs. Biomass fuel use for cooking is also common in LMICs. Empirical evidence from high-income countries indicates that early life nutritional and environmental exposures and their effect on infant lung function are important; however, data from sub-Saharan Africa are scarce.

Aim
To estimate the association between infant lung function and household food insecurity, energy poverty and maternal dietary diversity.

Methods and analysis
Pregnant women will be recruited in an existing Health and Demographic Surveillance Site in South-West Uganda. Household food insecurity, sources and uses of energy, economic measures and maternal dietary diversity will be collected during pregnancy and after birth. Primary health outcomes will be infant lung function determined by tidal breath flow and volume analysis at 6–10 weeks of age. Infant weight and length will also be collected.

A household Food Consumption Score and Minimum Dietary Diversity for Women (MDD-W) indicator will be constructed. The involved cost of dietary diversity will be estimated based on MDD-W. The association between household level and mothers’ food access indicators and infant lung function will be evaluated using regression models. The Multidimensional Energy Poverty Index (MEPI) will be estimated and used as an indicator of households’ environmental exposures. The association between household MEPI and infant lung function will be assessed using econometric models.

Item Type:	Article
Subjects:	WA Public Health > WA 30 Socioeconomic factors in public health (General) WA Public Health > Health Problems of Special Population Groups > WA 310 Maternal welfare WA Public Health > Health Problems of Special Population Groups > WA 320 Child Welfare. Child Health Services. WD Disorders of Systemic, Metabolic or Environmental Origin, etc > Nutrition Disorders > WD 100 General works
Faculty: Department:	Clinical Sciences & International Health > Clinical Sciences Department Clinical Sciences & International Health > International Public Health Department
Digital Object Identifer (DOI):	https://doi.org/10.1136/bmjopen-2021-050729
Depositing User:	Debbie Jenkins
Date Deposited:	31 Mar 2022 12:43
Last Modified:	31 Mar 2022 12:43
URI:	https://archive.lstmed.ac.uk/id/eprint/20193

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