Seasonal variations of neuromotor development by 14 months of age: Hamamatsu Birth Cohort for mothers and children (HBC Study).

The present study aimed at investigating whether neuromotor development, from birth to 14 months of age, shows seasonal, cyclic patterns in association with months of birth. Study participants were 742 infants enrolled in the Hamamatsu Birth Cohort (HBC) Study and followed-up from birth to the 14th...

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Autores principales:	Kenji J Tsuchiya, Hiroshi Tsutsumi, Kaori Matsumoto, Nori Takei, Makiko Narumiya, Maiko Honda, Ismail Thanseem, Ayyappan Anitha, Katsuaki Suzuki, Hideo Matsuzaki, Yasuhide Iwata, Kazuhiko Nakamura, Norio Mori, H. B. C. Study Team
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/79dd114e76fb4469867550fd37099b89
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spelling	oai:doaj.org-article:79dd114e76fb4469867550fd37099b892021-11-18T08:04:29ZSeasonal variations of neuromotor development by 14 months of age: Hamamatsu Birth Cohort for mothers and children (HBC Study).1932-620310.1371/journal.pone.0052057https://doaj.org/article/79dd114e76fb4469867550fd37099b892012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23284868/?tool=EBIhttps://doaj.org/toc/1932-6203The present study aimed at investigating whether neuromotor development, from birth to 14 months of age, shows seasonal, cyclic patterns in association with months of birth. Study participants were 742 infants enrolled in the Hamamatsu Birth Cohort (HBC) Study and followed-up from birth to the 14th month of age. Gross motor skills were assessed at the ages of 6, 10, and 14 months, using Mullen Scales of Early Learning. The score at each assessment was regressed onto a trigonometric function of months of birth, with an adjustment for potential confounders. Gross motor scores at the 6th and 10th months showed significant 1-year-cycle variations, peaking among March- and April-born infants, and among February-born infants, respectively. Changes in gross motor scores between the 10th and 14th months also showed a cyclic variation, peaking among July- and August-born infants. Due to this complementary effect, gross motor scores at the 14th month did not show seasonality. Neuromotor development showed cyclic seasonality during the first year of life. The effects brought about by month of birth disappeared around 1 year of age, and warmer months seemed to accelerate the neuromotor development.Kenji J TsuchiyaHiroshi TsutsumiKaori MatsumotoNori TakeiMakiko NarumiyaMaiko HondaIsmail ThanseemAyyappan AnithaKatsuaki SuzukiHideo MatsuzakiYasuhide IwataKazuhiko NakamuraNorio MoriH. B. C. Study TeamPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 12, p e52057 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kenji J Tsuchiya Hiroshi Tsutsumi Kaori Matsumoto Nori Takei Makiko Narumiya Maiko Honda Ismail Thanseem Ayyappan Anitha Katsuaki Suzuki Hideo Matsuzaki Yasuhide Iwata Kazuhiko Nakamura Norio Mori H. B. C. Study Team Seasonal variations of neuromotor development by 14 months of age: Hamamatsu Birth Cohort for mothers and children (HBC Study).
description	The present study aimed at investigating whether neuromotor development, from birth to 14 months of age, shows seasonal, cyclic patterns in association with months of birth. Study participants were 742 infants enrolled in the Hamamatsu Birth Cohort (HBC) Study and followed-up from birth to the 14th month of age. Gross motor skills were assessed at the ages of 6, 10, and 14 months, using Mullen Scales of Early Learning. The score at each assessment was regressed onto a trigonometric function of months of birth, with an adjustment for potential confounders. Gross motor scores at the 6th and 10th months showed significant 1-year-cycle variations, peaking among March- and April-born infants, and among February-born infants, respectively. Changes in gross motor scores between the 10th and 14th months also showed a cyclic variation, peaking among July- and August-born infants. Due to this complementary effect, gross motor scores at the 14th month did not show seasonality. Neuromotor development showed cyclic seasonality during the first year of life. The effects brought about by month of birth disappeared around 1 year of age, and warmer months seemed to accelerate the neuromotor development.
format	article
author	Kenji J Tsuchiya Hiroshi Tsutsumi Kaori Matsumoto Nori Takei Makiko Narumiya Maiko Honda Ismail Thanseem Ayyappan Anitha Katsuaki Suzuki Hideo Matsuzaki Yasuhide Iwata Kazuhiko Nakamura Norio Mori H. B. C. Study Team
author_facet	Kenji J Tsuchiya Hiroshi Tsutsumi Kaori Matsumoto Nori Takei Makiko Narumiya Maiko Honda Ismail Thanseem Ayyappan Anitha Katsuaki Suzuki Hideo Matsuzaki Yasuhide Iwata Kazuhiko Nakamura Norio Mori H. B. C. Study Team
author_sort	Kenji J Tsuchiya
title	Seasonal variations of neuromotor development by 14 months of age: Hamamatsu Birth Cohort for mothers and children (HBC Study).
title_short	Seasonal variations of neuromotor development by 14 months of age: Hamamatsu Birth Cohort for mothers and children (HBC Study).
title_full	Seasonal variations of neuromotor development by 14 months of age: Hamamatsu Birth Cohort for mothers and children (HBC Study).
title_fullStr	Seasonal variations of neuromotor development by 14 months of age: Hamamatsu Birth Cohort for mothers and children (HBC Study).
title_full_unstemmed	Seasonal variations of neuromotor development by 14 months of age: Hamamatsu Birth Cohort for mothers and children (HBC Study).
title_sort	seasonal variations of neuromotor development by 14 months of age: hamamatsu birth cohort for mothers and children (hbc study).
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/79dd114e76fb4469867550fd37099b89
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Seasonal variations of neuromotor development by 14 months of age: Hamamatsu Birth Cohort for mothers and children (HBC Study).

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