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Temporal trends in the birth rates and perinatal mortality of twins: A population-based study in China

OBJECTIVE: Until now, little was known about the epidemiological characteristics of twins in China due to a lack of reliable national data. In this study, we aimed to analyze temporal trends and perinatal mortality of twins from China. METHODS: Data on twins between 2007 and 2014 were obtained from...

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Autores principales: Deng, Changfei, Dai, Li, Yi, Ling, Li, Xiaohong, Deng, Kui, Mu, Yi, Wang, Ke, Tao, Jing, Li, Qi, Xu, Liangzhi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6334899/
https://www.ncbi.nlm.nih.gov/pubmed/30650106
http://dx.doi.org/10.1371/journal.pone.0209962
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author Deng, Changfei
Dai, Li
Yi, Ling
Li, Xiaohong
Deng, Kui
Mu, Yi
Wang, Ke
Tao, Jing
Li, Qi
Xu, Liangzhi
author_facet Deng, Changfei
Dai, Li
Yi, Ling
Li, Xiaohong
Deng, Kui
Mu, Yi
Wang, Ke
Tao, Jing
Li, Qi
Xu, Liangzhi
author_sort Deng, Changfei
collection PubMed
description OBJECTIVE: Until now, little was known about the epidemiological characteristics of twins in China due to a lack of reliable national data. In this study, we aimed to analyze temporal trends and perinatal mortality of twins from China. METHODS: Data on twins between 2007 and 2014 were obtained from the China National Population-Based Birth Defects Surveillance System. Twin and singleton deliveries after at least 28 weeks of gestation were recruited and followed until postnatal day 42. Twinning rates were defined as the number of twin individuals per 1000 births(stillbirths and live births). The Weinberg’s differential method was utilized to estimate the number of monozygotic and dizygotic twins. RESULTS: During 2007–2014, the twinning rate increased by 32.3% from 16.4 to 21.7 per 1000 total births with an average of 18.8‰. Among twins, both the perinatal mortality rate (26.1 per 1000 total births) and neonatal death rate (15.7 per 1000 live births) presented a downward tendency but remained at a high level. Large urban-rural and geographic disparities were identified in twinning rates, in perinatal and neonatal mortality, and in their temporal trends. CONCLUSIONS: The upward trend of twinning rates in China paired with the relatively high rates of perinatal and neonatal mortality among twins highlights the need for improved perinatal care in the light of socio-demographic differences.
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spelling pubmed-63348992019-01-31 Temporal trends in the birth rates and perinatal mortality of twins: A population-based study in China Deng, Changfei Dai, Li Yi, Ling Li, Xiaohong Deng, Kui Mu, Yi Wang, Ke Tao, Jing Li, Qi Xu, Liangzhi PLoS One Research Article OBJECTIVE: Until now, little was known about the epidemiological characteristics of twins in China due to a lack of reliable national data. In this study, we aimed to analyze temporal trends and perinatal mortality of twins from China. METHODS: Data on twins between 2007 and 2014 were obtained from the China National Population-Based Birth Defects Surveillance System. Twin and singleton deliveries after at least 28 weeks of gestation were recruited and followed until postnatal day 42. Twinning rates were defined as the number of twin individuals per 1000 births(stillbirths and live births). The Weinberg’s differential method was utilized to estimate the number of monozygotic and dizygotic twins. RESULTS: During 2007–2014, the twinning rate increased by 32.3% from 16.4 to 21.7 per 1000 total births with an average of 18.8‰. Among twins, both the perinatal mortality rate (26.1 per 1000 total births) and neonatal death rate (15.7 per 1000 live births) presented a downward tendency but remained at a high level. Large urban-rural and geographic disparities were identified in twinning rates, in perinatal and neonatal mortality, and in their temporal trends. CONCLUSIONS: The upward trend of twinning rates in China paired with the relatively high rates of perinatal and neonatal mortality among twins highlights the need for improved perinatal care in the light of socio-demographic differences. Public Library of Science 2019-01-16 /pmc/articles/PMC6334899/ /pubmed/30650106 http://dx.doi.org/10.1371/journal.pone.0209962 Text en © 2019 Deng 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
Deng, Changfei
Dai, Li
Yi, Ling
Li, Xiaohong
Deng, Kui
Mu, Yi
Wang, Ke
Tao, Jing
Li, Qi
Xu, Liangzhi
Temporal trends in the birth rates and perinatal mortality of twins: A population-based study in China
title Temporal trends in the birth rates and perinatal mortality of twins: A population-based study in China
title_full Temporal trends in the birth rates and perinatal mortality of twins: A population-based study in China
title_fullStr Temporal trends in the birth rates and perinatal mortality of twins: A population-based study in China
title_full_unstemmed Temporal trends in the birth rates and perinatal mortality of twins: A population-based study in China
title_short Temporal trends in the birth rates and perinatal mortality of twins: A population-based study in China
title_sort temporal trends in the birth rates and perinatal mortality of twins: a population-based study in china
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6334899/
https://www.ncbi.nlm.nih.gov/pubmed/30650106
http://dx.doi.org/10.1371/journal.pone.0209962
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