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Birth month and infant gross motor development: Results from the Japan Environment and Children’s Study (JECS)
The association between birth month and neurodevelopmental or psychiatric disorders has been investigated in a number of previous studies; however, the results have been inconsistent. This study investigated the association between birth month and child gross motor development at 6 and 12 months of...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8136702/ https://www.ncbi.nlm.nih.gov/pubmed/34014944 http://dx.doi.org/10.1371/journal.pone.0251581 |
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author | Yasumitsu-Lovell, Kahoko Thompson, Lucy Fernell, Elisabeth Eitoku, Masamitsu Suganuma, Narufumi Gillberg, Christopher |
author_facet | Yasumitsu-Lovell, Kahoko Thompson, Lucy Fernell, Elisabeth Eitoku, Masamitsu Suganuma, Narufumi Gillberg, Christopher |
author_sort | Yasumitsu-Lovell, Kahoko |
collection | PubMed |
description | The association between birth month and neurodevelopmental or psychiatric disorders has been investigated in a number of previous studies; however, the results have been inconsistent. This study investigated the association between birth month and child gross motor development at 6 and 12 months of age in a large cohort of infants (n = 72,203) participating in the Japan Environment and Children’s Study (JECS). Gross motor development was assessed using the Ages and Stages Questionnaire (ASQ-3). At 6 months and 12 months, 20.7% and 14.2%, respectively, had ASQ-3 indications of gross motor problems. Birth month was strongly associated with gross motor development at both time points, particularly at 6 months. Summer-born infants had the worst outcomes at both 6 months and 12 months of age. This outcome applied to the ASQ-3 score itself and to the adjusted Relative Risk (aRR), with the highest aRRs (relative to January-born) among August-born (aRR 2.51; 95%CI 2.27–2.78 at 6 months), and June-born (aRR 1.84; 95%CI 1.63–2.09 at 12 months). Boys had better scores than girls both at 6 and 12 months of age. We speculate that seasonal factors—such as maternal vitamin D deficiency and influenza infection—affecting the fetus in early pregnancy might account for the findings. |
format | Online Article Text |
id | pubmed-8136702 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-81367022021-06-02 Birth month and infant gross motor development: Results from the Japan Environment and Children’s Study (JECS) Yasumitsu-Lovell, Kahoko Thompson, Lucy Fernell, Elisabeth Eitoku, Masamitsu Suganuma, Narufumi Gillberg, Christopher PLoS One Research Article The association between birth month and neurodevelopmental or psychiatric disorders has been investigated in a number of previous studies; however, the results have been inconsistent. This study investigated the association between birth month and child gross motor development at 6 and 12 months of age in a large cohort of infants (n = 72,203) participating in the Japan Environment and Children’s Study (JECS). Gross motor development was assessed using the Ages and Stages Questionnaire (ASQ-3). At 6 months and 12 months, 20.7% and 14.2%, respectively, had ASQ-3 indications of gross motor problems. Birth month was strongly associated with gross motor development at both time points, particularly at 6 months. Summer-born infants had the worst outcomes at both 6 months and 12 months of age. This outcome applied to the ASQ-3 score itself and to the adjusted Relative Risk (aRR), with the highest aRRs (relative to January-born) among August-born (aRR 2.51; 95%CI 2.27–2.78 at 6 months), and June-born (aRR 1.84; 95%CI 1.63–2.09 at 12 months). Boys had better scores than girls both at 6 and 12 months of age. We speculate that seasonal factors—such as maternal vitamin D deficiency and influenza infection—affecting the fetus in early pregnancy might account for the findings. Public Library of Science 2021-05-20 /pmc/articles/PMC8136702/ /pubmed/34014944 http://dx.doi.org/10.1371/journal.pone.0251581 Text en © 2021 Yasumitsu-Lovell et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Yasumitsu-Lovell, Kahoko Thompson, Lucy Fernell, Elisabeth Eitoku, Masamitsu Suganuma, Narufumi Gillberg, Christopher Birth month and infant gross motor development: Results from the Japan Environment and Children’s Study (JECS) |
title | Birth month and infant gross motor development: Results from the Japan Environment and Children’s Study (JECS) |
title_full | Birth month and infant gross motor development: Results from the Japan Environment and Children’s Study (JECS) |
title_fullStr | Birth month and infant gross motor development: Results from the Japan Environment and Children’s Study (JECS) |
title_full_unstemmed | Birth month and infant gross motor development: Results from the Japan Environment and Children’s Study (JECS) |
title_short | Birth month and infant gross motor development: Results from the Japan Environment and Children’s Study (JECS) |
title_sort | birth month and infant gross motor development: results from the japan environment and children’s study (jecs) |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8136702/ https://www.ncbi.nlm.nih.gov/pubmed/34014944 http://dx.doi.org/10.1371/journal.pone.0251581 |
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