Estimating impacts of the nuclear family and heritability of nutritional outcomes in a boat-dwelling community

American Journal of Human Biology : the Official Journal of the Human Biology Council
Kathrine E Starkweather, Monica H Keith

Abstract

General health status is reflected in measures of height, weight, and BMI. Assessing sources of variation in these outcomes reveals population-specific variables of importance to health and nutrition. We characterize the impacts of socioeconomic variables related to the nuclear family on health outcomes of boat-dwelling Shodagor children, mothers, and fathers, and to estimate the proportion of variation in height, weight, and BMI influenced by both genetic variation and nongenetic variation among household environments. Bayesian linear mixed models (LMMs) estimate heritability and household-effect variance components among the Shodagor. These models also assess the influences of specific socioeconomic predictor variables on different types of individuals within the household (children, mothers, and fathers). Overall, models explain 61.7% of variation in height, 59.4% in weight, and 65.8% in BMI for this sample of Shodagor. Mother's decision-making and household income have expected, positive associations with children's weight and BMI. Number of children has an unexpected positive relationship to children's height and a negative relationship to father's BMI. Genetic variation explains less than 26% of phenotypic variation for e...Continue Reading

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Citations

Jul 16, 2019·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Kathrine Starkweather, Monica Keith
May 19, 2020·Molecular Genetics & Genomic Medicine·Pengcheng ZhuXiaoyi Ji
Jun 5, 2021·Developmental Psychobiology·K E StarkweatherM Emery Thompson

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