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Pregnancy complications among nulliparous and multiparous women with advanced maternal age: a community-based prospective cohort study in China.


ABSTRACT:

Background

This study aimed to evaluate the incidence rates and risks of pregnancy complications among nulliparous and multiparous women with advanced maternal age (AMA, ≥35 years) in China.

Methods

We performed a community-based prospective cohort study of 10,171 pregnant women in selected two sub-districts and 11 towns of Liuyang from 2013 to 2015. All subjects were followed up from the first prenatal care (at ≤12 weeks) to delivery, and risks of pregnancy complications were compared by parity and maternal age groups.

Results

Among nulliparas, women with AMA showed significantly increased risks for gestational hypertension (OR 8.44, 95%CI 1.68-2.88), preeclampsia/eclampsia (OR 9.92, 95%CI 4.87-18.78), premature rupture of membrane (OR 6.84, 95%CI 2.00-17.69), as compared to women in the 20-29-year age group. Among multiparas with AMA, increased risks were found for gestational diabetes mellitus (OR 3.29, 95%CI 1.76-5.94), anemia (OR 1.85, 95%CI 1.25-2.69), polyhydramnios (OR 3.29, 95%CI 1.56-6.64), premature rupture of membrane (OR 5.14, 95%CI 2.12-12.29), and preterm labor (OR 1.89, 95CI 1.42-2.50).

Conclusions

Women with AMA were associated with increased risks of pregnancy complications, and complications with increased risks differed in nulliparas and multiparas. Women with AMA should be identified as a high-risk group in clinical practice.

SUBMITTER: Luo J 

PROVIDER: S-EPMC7532564 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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Pregnancy complications among nulliparous and multiparous women with advanced maternal age: a community-based prospective cohort study in China.

Luo Jiayou J   Fan Chunli C   Luo Miyang M   Fang Junqun J   Zhou Shujin S   Zhang Fenfang F  

BMC pregnancy and childbirth 20201002 1


<h4>Background</h4>This study aimed to evaluate the incidence rates and risks of pregnancy complications among nulliparous and multiparous women with advanced maternal age (AMA, ≥35 years) in China.<h4>Methods</h4>We performed a community-based prospective cohort study of 10,171 pregnant women in selected two sub-districts and 11 towns of Liuyang from 2013 to 2015. All subjects were followed up from the first prenatal care (at ≤12 weeks) to delivery, and risks of pregnancy complications were com  ...[more]

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