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Pregnancy Outcomes Based on Pre-Pregnancy Body Mass Index in Japanese Women
OBJECTIVE: To verify whether body mass index (BMI) classification proposed by the Institute of Medicine (IOM) is valid in Japanese women. METHOD: A study was conducted in 97,157 women with singleton pregnancies registered in the Japan Society of Obstetrics and Gynecology (JSOG) Successive Pregnancy...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4900523/ https://www.ncbi.nlm.nih.gov/pubmed/27280958 http://dx.doi.org/10.1371/journal.pone.0157081 |
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author | Enomoto, Kimiko Aoki, Shigeru Toma, Rie Fujiwara, Kana Sakamaki, Kentaro Hirahara, Fumiki |
author_facet | Enomoto, Kimiko Aoki, Shigeru Toma, Rie Fujiwara, Kana Sakamaki, Kentaro Hirahara, Fumiki |
author_sort | Enomoto, Kimiko |
collection | PubMed |
description | OBJECTIVE: To verify whether body mass index (BMI) classification proposed by the Institute of Medicine (IOM) is valid in Japanese women. METHOD: A study was conducted in 97,157 women with singleton pregnancies registered in the Japan Society of Obstetrics and Gynecology (JSOG) Successive Pregnancy Birth Registry System between January 2013 and December 2013, to examine pregnancy outcomes in four groups stratified by pre-pregnancy BMI category according to the 2009 criteria recommended by the Institute of Medicine (IOM). The groups comprised 17,724 underweight women with BMI <18.5, 69,126 normal weight women with BMI 18.5–24.9, 7,502 overweight women with BMI 25–29.9, and 2,805 obese women with BMI ≥30. The pregnancy outcomes were also compared among subgroups stratified by a gestational weight gain below, within, and above the optimal weight gain. RESULTS: The higher the pre-pregnancy BMI, the higher the incidences of pregnancy-induced hypertension, gestational diabetes mellitus, macrosomia, cesarean delivery, postpartum hemorrhage, and post-term birth, but the lower the incidence of small for gestational age (SGA). In all pre-pregnancy BMI category groups, excess gestational weight gain was associated with a higher frequency of large for gestational age and macrosomia; poor weight gain correlated with a higher frequency of SGA, preterm birth, preterm premature rupture of membranes, and spontaneous preterm birth; and optimal weight gain within the recommended range was associated with a better outcome. CONCLUSION: The BMI classification by the IOM was demonstrated to be valid in Japanese women. |
format | Online Article Text |
id | pubmed-4900523 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-49005232016-06-24 Pregnancy Outcomes Based on Pre-Pregnancy Body Mass Index in Japanese Women Enomoto, Kimiko Aoki, Shigeru Toma, Rie Fujiwara, Kana Sakamaki, Kentaro Hirahara, Fumiki PLoS One Research Article OBJECTIVE: To verify whether body mass index (BMI) classification proposed by the Institute of Medicine (IOM) is valid in Japanese women. METHOD: A study was conducted in 97,157 women with singleton pregnancies registered in the Japan Society of Obstetrics and Gynecology (JSOG) Successive Pregnancy Birth Registry System between January 2013 and December 2013, to examine pregnancy outcomes in four groups stratified by pre-pregnancy BMI category according to the 2009 criteria recommended by the Institute of Medicine (IOM). The groups comprised 17,724 underweight women with BMI <18.5, 69,126 normal weight women with BMI 18.5–24.9, 7,502 overweight women with BMI 25–29.9, and 2,805 obese women with BMI ≥30. The pregnancy outcomes were also compared among subgroups stratified by a gestational weight gain below, within, and above the optimal weight gain. RESULTS: The higher the pre-pregnancy BMI, the higher the incidences of pregnancy-induced hypertension, gestational diabetes mellitus, macrosomia, cesarean delivery, postpartum hemorrhage, and post-term birth, but the lower the incidence of small for gestational age (SGA). In all pre-pregnancy BMI category groups, excess gestational weight gain was associated with a higher frequency of large for gestational age and macrosomia; poor weight gain correlated with a higher frequency of SGA, preterm birth, preterm premature rupture of membranes, and spontaneous preterm birth; and optimal weight gain within the recommended range was associated with a better outcome. CONCLUSION: The BMI classification by the IOM was demonstrated to be valid in Japanese women. Public Library of Science 2016-06-09 /pmc/articles/PMC4900523/ /pubmed/27280958 http://dx.doi.org/10.1371/journal.pone.0157081 Text en © 2016 Enomoto et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://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 Enomoto, Kimiko Aoki, Shigeru Toma, Rie Fujiwara, Kana Sakamaki, Kentaro Hirahara, Fumiki Pregnancy Outcomes Based on Pre-Pregnancy Body Mass Index in Japanese Women |
title | Pregnancy Outcomes Based on Pre-Pregnancy Body Mass Index in Japanese Women |
title_full | Pregnancy Outcomes Based on Pre-Pregnancy Body Mass Index in Japanese Women |
title_fullStr | Pregnancy Outcomes Based on Pre-Pregnancy Body Mass Index in Japanese Women |
title_full_unstemmed | Pregnancy Outcomes Based on Pre-Pregnancy Body Mass Index in Japanese Women |
title_short | Pregnancy Outcomes Based on Pre-Pregnancy Body Mass Index in Japanese Women |
title_sort | pregnancy outcomes based on pre-pregnancy body mass index in japanese women |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4900523/ https://www.ncbi.nlm.nih.gov/pubmed/27280958 http://dx.doi.org/10.1371/journal.pone.0157081 |
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