Effect of maternal active smoking during pregnancy on the trajectory of childhood body mass index: A multilevel analysis using quartiles of birthweight
Introduction Maternal active smoking during pregnancy is associated with childhood obesity; however, whether maternal active smoking affects childhood body mass index (BMI) according to birthweight has not been examined. Methods The study participants were 1955 women and their single-born infants,...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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European Publishing
2020-04-01
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| Series: | Tobacco Induced Diseases |
| Subjects: | |
| Online Access: | http://www.journalssystem.com/tid/Effect-of-Maternal-Active-Smoking-During-Pregnancy-on-the-Trajectory-of-Childhood,119117,0,2.html |
| _version_ | 1811273263187230720 |
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| author | Miho Kamiya Kohta Suzuki Zentaro Yamagata |
| author_facet | Miho Kamiya Kohta Suzuki Zentaro Yamagata |
| author_sort | Miho Kamiya |
| collection | DOAJ |
| description | Introduction
Maternal active smoking during pregnancy is associated with childhood
obesity; however, whether maternal active smoking affects childhood body mass
index (BMI) according to birthweight has not been examined.
Methods
The study participants were 1955 women and their single-born infants,
born between 1 April 1991 and 31 March 2003, in Koshu City, Japan, for whom
complete data for birthweight, pre-pregnancy maternal BMI and pregnancy
smoking status were available. Maternal smoking status during pregnancy was
recorded using a questionnaire at the time of pregnancy registration. Childhood
BMI was estimated by the BMI z-score, established by the World Health
Organisation. Birthweight quartiles were grouped by sex and parity (first vs
second or higher). Multilevel analysis, including both the individual and time as
different level variables by each birthweight quartile, was used to describe the
trajectories of BMI z-scores for statistical analyses.
Results
In every quartile group, although children born to smoking mothers were
leaner at birth, their BMI z-score increased around the age of 3 years. These
children were larger than children born to non-smoking mothers. Significant
interactions between maternal active smoking during pregnancy and child’s age
were seen in those in the first and second quartiles of birthweight. Moreover,
rapid growth in infancy was observed in the second quartile of birthweight.
Conclusions
The effect of maternal active smoking during pregnancy on childhood
growth was more apparent among children in the second quartile of birthweight. |
| first_indexed | 2024-04-12T22:55:59Z |
| format | Article |
| id | doaj.art-a74e03fd4eed4f30ab0e35232d749a80 |
| institution | Directory Open Access Journal |
| issn | 1617-9625 |
| language | English |
| last_indexed | 2024-04-12T22:55:59Z |
| publishDate | 2020-04-01 |
| publisher | European Publishing |
| record_format | Article |
| series | Tobacco Induced Diseases |
| spelling | doaj.art-a74e03fd4eed4f30ab0e35232d749a802022-12-22T03:13:11ZengEuropean PublishingTobacco Induced Diseases1617-96252020-04-0118April10.18332/tid/119117119117Effect of maternal active smoking during pregnancy on the trajectory of childhood body mass index: A multilevel analysis using quartiles of birthweightMiho Kamiya0Kohta Suzuki1Zentaro Yamagata2Department of Health and Psychosocial Medicine, Aichi Medical University School of Medicine, Nagakute, JapanDepartment of Health and Psychosocial Medicine, Aichi Medical University School of Medicine, Nagakute, JapanDepartment of Health Sciences, Graduate School of Medicine, University of Yamanashi, Chuo, JapanIntroduction Maternal active smoking during pregnancy is associated with childhood obesity; however, whether maternal active smoking affects childhood body mass index (BMI) according to birthweight has not been examined. Methods The study participants were 1955 women and their single-born infants, born between 1 April 1991 and 31 March 2003, in Koshu City, Japan, for whom complete data for birthweight, pre-pregnancy maternal BMI and pregnancy smoking status were available. Maternal smoking status during pregnancy was recorded using a questionnaire at the time of pregnancy registration. Childhood BMI was estimated by the BMI z-score, established by the World Health Organisation. Birthweight quartiles were grouped by sex and parity (first vs second or higher). Multilevel analysis, including both the individual and time as different level variables by each birthweight quartile, was used to describe the trajectories of BMI z-scores for statistical analyses. Results In every quartile group, although children born to smoking mothers were leaner at birth, their BMI z-score increased around the age of 3 years. These children were larger than children born to non-smoking mothers. Significant interactions between maternal active smoking during pregnancy and child’s age were seen in those in the first and second quartiles of birthweight. Moreover, rapid growth in infancy was observed in the second quartile of birthweight. Conclusions The effect of maternal active smoking during pregnancy on childhood growth was more apparent among children in the second quartile of birthweight.http://www.journalssystem.com/tid/Effect-of-Maternal-Active-Smoking-During-Pregnancy-on-the-Trajectory-of-Childhood,119117,0,2.htmlbirthweightpregnancyactive smokingchildhood growthbody mass index |
| spellingShingle | Miho Kamiya Kohta Suzuki Zentaro Yamagata Effect of maternal active smoking during pregnancy on the trajectory of childhood body mass index: A multilevel analysis using quartiles of birthweight Tobacco Induced Diseases birthweight pregnancy active smoking childhood growth body mass index |
| title | Effect of maternal active smoking during pregnancy on
the trajectory of childhood body mass index: A multilevel
analysis using quartiles of birthweight |
| title_full | Effect of maternal active smoking during pregnancy on
the trajectory of childhood body mass index: A multilevel
analysis using quartiles of birthweight |
| title_fullStr | Effect of maternal active smoking during pregnancy on
the trajectory of childhood body mass index: A multilevel
analysis using quartiles of birthweight |
| title_full_unstemmed | Effect of maternal active smoking during pregnancy on
the trajectory of childhood body mass index: A multilevel
analysis using quartiles of birthweight |
| title_short | Effect of maternal active smoking during pregnancy on
the trajectory of childhood body mass index: A multilevel
analysis using quartiles of birthweight |
| title_sort | effect of maternal active smoking during pregnancy on the trajectory of childhood body mass index a multilevel analysis using quartiles of birthweight |
| topic | birthweight pregnancy active smoking childhood growth body mass index |
| url | http://www.journalssystem.com/tid/Effect-of-Maternal-Active-Smoking-During-Pregnancy-on-the-Trajectory-of-Childhood,119117,0,2.html |
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