Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/72994
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Type: Journal article
Title: Social inequalities in height: persisting differences today depend upon height of the parents
Author: Galobardes, B.
McCormack, V.
McCarron, P.
Howe, L.
Lynch, J.
Lawlor, D.
Davey-Smith, G.
Citation: PLoS One, 2012; 7(1):1-8
Publisher: Public Library of Science
Issue Date: 2012
ISSN: 1932-6203
1932-6203
Statement of
Responsibility: 
Bruna Galobardes, Valerie A. McCormack, Peter McCarron, Laura D. Howe, John Lynch, Debbie A. Lawlor and George Davey Smith
Abstract: BACKGROUND: Substantial increases in height have occurred concurrently with economic development in most populations during the last century. In high-income countries, environmental exposures that can limit genetic growth potential appear to have lessened, and variation in height by socioeconomic position may have diminished. The objective of this study is to investigate inequalities in height in a cohort of children born in the early 1990s in England, and to evaluate which factors might explain any identified inequalities. METHODS AND FINDINGS: 12,830 children from The Avon Longitudinal Study of Parents and Children (ALSPAC), a population based cohort from birth to about 11.5 years of age, were used in this analysis. Gender- and age-specific z-scores of height at different ages were used as outcome variables. Multilevel models were used to take into account the repeated measures of height and to analyze gender- and age-specific relative changes in height from birth to 11.5 years. Maternal education was the main exposure variable used to examine socioeconomic inequalities. The roles of parental and family characteristics in explaining any observed differences between maternal education and child height were investigated. Children whose mothers had the highest education compared to those with none or a basic level of education, were 0.39 cm longer at birth (95% CI: 0.30 to 0.48). These differences persisted and at 11.5 years the height difference was 1.4 cm (95% CI: 1.07 to 1.74). Several other factors were related to offspring height, but few changed the relationship with maternal education. The one exception was mid-parental height, which fully accounted for the maternal educational differences in offspring height. CONCLUSIONS: In a cohort of children born in the 1990s, mothers with higher education gave birth to taller boys and girls. Although height differences were small they persisted throughout childhood. Maternal and paternal height fully explained these differences.
Keywords: Humans; Body Weights and Measures; Body Height; Cohort Studies; Parent-Child Relations; Parents; Time Factors; Social Class; Socioeconomic Factors; Adult; Child; Child, Preschool; Infant; Infant, Newborn; England; Female; Male
Rights: Copyright: © 2012 Galobardes et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
RMID: 0020117420
DOI: 10.1371/journal.pone.0029118
Appears in Collections:Medicine publications

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