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Soil Zinc Is Associated with Serum Zinc But Not with Linear Growth of Children in Ethiopia.


ABSTRACT: To our knowledge, the relationships among soil zinc, serum zinc and children's linear growth have not been studied geographically or at a national level in any country. We use data from the cross-sectional, nationally representative Ethiopian National Micronutrient Survey (ENMS) (n = 1776), which provided anthropometric and serum zinc (n = 1171) data on children aged 6⁻59 months. Soil zinc levels were extracted for each child from the digital soil map of Ethiopia, developed by the Africa Soil Information Service. Children's linear growth was computed using length/height and age converted into Z-scores for height-for-age. Multi-level mixed linear regression models were used for the analysis. Nationally, 28% of children aged 6⁻59 months were zinc deficient (24% when adjusted for inflammation) and 38% were stunted. Twenty percent of households in the ENMS were located on zinc-deficient soils. Soil zinc (in mg/kg) was positively associated with serum zinc (in µg/dL) (b = 0.9, p = 0.020) and weight-for-height-Z-score (b = 0.05, p = 0.045) but linear growth was not associated with soil zinc (p = 0.604) or serum zinc (p = 0.506) among Ethiopian preschool children. Intervention studies are needed to determine whether there are causal links between soil and human zinc status.

SUBMITTER: Tessema M 

PROVIDER: S-EPMC6413067 | biostudies-other | 2019 Jan

REPOSITORIES: biostudies-other

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Soil Zinc Is Associated with Serum Zinc But Not with Linear Growth of Children in Ethiopia.

Tessema Masresha M   De Groote Hugo H   D Brouwer Inge I   J M Feskens Edith E   Belachew Tefera T   Zerfu Dilnesaw D   Belay Adamu A   Demelash Yoseph Y   S Gunaratna Nilupa N  

Nutrients 20190122 2


To our knowledge, the relationships among soil zinc, serum zinc and children's linear growth have not been studied geographically or at a national level in any country. We use data from the cross-sectional, nationally representative Ethiopian National Micronutrient Survey (ENMS) (<i>n</i> = 1776), which provided anthropometric and serum zinc (<i>n</i> = 1171) data on children aged 6⁻59 months. Soil zinc levels were extracted for each child from the digital soil map of Ethiopia, developed by the  ...[more]

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