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- Title
Head Circumference of Infants Born to Mothers with Different Educational Levels; The Generation R Study.
- Authors
Bouthoorn, Selma H.; van Lenthe, Frank J.; Hokken-Koelega, Anita C. S.; Moll, Henriëtte A.; Tiemeier, Henning; Hofman, Albert; Mackenbach, Johan P.; Jaddoe, Vincent W. V.; Raat, Hein
- Abstract
Objective: Head circumference (HC) reflect growth and development of the brain in early childhood. It is unknown whether socioeconomic differences in HC are present in early childhood. Therefore, we investigated the association between socioeconomic position (SEP) and HC in early childhood, and potential underlying factors. Methods: The study focused on Dutch children born between April -002 and January -006 who participated in The Generation R Study, a population-based prospective cohort study in Rotterdam, the Netherlands. Maternal educational level was used as indicator of SEP. HC measures were concentrated around 1, 3, 6 and 11 months. Associations and explanatory factors were investigated using linear regression analysis, adjusted for potential mediators. Results: The study included 3383 children. At 1, 3 and 6 months of age, children of mothers with a low education had a smaller HC than those with a high education (difference at 1 month: -0.42 SD; 95% CI: -0.54,-0.30; at 3 months: -0.27 SD; 95% CI -0.40,-0.15; and at 6 months: -0.13 SD; 95% CI -0.24,-0.02). Child's length and weight could only partially explain the smaller HC at 1 and 3 months of age. At 6 months, birth weight, gestational age and parental height explained the HC differences. At 11 months, no HC differences were found. Conclusion: Educational inequalities in HC in the first 6 months of life can be mainly explained by pregnancy-related factors, such as birth weight and gestational age. These findings further support public health policies to prevent negative birth outcomes in lower socioeconomic groups.
- Subjects
HEAD; NEWBORN infants; BIRTH size; GESTATIONAL age; MULTIVARIATE analysis; PUBLIC health
- Publication
PLoS ONE, 2012, Vol 7, Issue 6, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0039798