Child Survival and Annual Crop Yield Reductions in Rural Burkina Faso: Critical Windows of Vulnerability Around Early-Life Development.
Am J Epidemiol
; 192(7): 1116-1127, 2023 07 07.
Article
em En
| MEDLINE
| ID: mdl-37116074
ABSTRACT
Populations that are reliant on subsistence farming are particularly vulnerable to climatic effects on crop yields. However, empirical evidence on the role of the timing of exposure to crop yield deficits in early-life development is limited. We examined the relationship between child survival and annual crop yield reductions at different stages of early-life development in a subsistence farming population in Burkina Faso. Using shared frailty Cox proportional hazards models adjusting for confounders, we analyzed 57,288 children under 5 years of age followed by the Nouna Health and Demographic Surveillance System (1994-2016) in relation to provincial food-crop yield levels experienced in 5 nonoverlapping time windows (12 months before conception, gestation, birth-age 5.9 months, ages 6.0 months-1.9 years, and ages 2.0-4.9 years) and their aggregates (birth-1.9 years, first 1,000 days from conception, and birth-4.9 years). Of the nonoverlapping windows, point estimates were largest for child survival related to food-crop yields for the time window of 6.0 months-1.9 years The adjusted mortality hazard ratio was 1.10 (95% confidence interval 1.03, 1.19) for a 90th-to-10th percentile yield reduction. These findings suggest that child survival in this setting is particularly vulnerable to cereal-crop yield reductions during the period of nonexclusive breastfeeding.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Agricultura
/
Mortalidade da Criança
/
Vulnerabilidade Social
Tipo de estudo:
Prognostic_studies
Limite:
Child, preschool
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Female
/
Humans
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Infant
País/Região como assunto:
Africa
Idioma:
En
Revista:
Am J Epidemiol
Ano de publicação:
2023
Tipo de documento:
Article