Evidence map›Paper›PMID 33618715›Full record

ArticleBMC pregnancy and childbirth2021

Gestational systolic blood pressure trajectories and risk of adverse maternal and perinatal outcomes in Chinese women.

Haoyue Teng, Yumei Wang, Bing Han, Jieyu Liu, Yingying Cao, Jiaxiang Wang, Xiaoyan Zhu, Jiaojiao Fu, Qi Ling, Chengqi Xiao and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Blood pressure trajectories during pregnancy, labor, and postpartum period: a multicenter study in Japan.Hypertension research : official journal of the Japanese Society of Hypertension · 2026
    Observational
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  9. Blood Pressure and Late Pregnancy Circulating miRNAs in the MADRES Study.Journal of the American Heart Association · 2025
    Article
  10. Examining maternal and fetal outcomes across various subtypes of hypertension during pregnancy.International journal of cardiology. Cardiovascular risk and prevention · 2025
    Article
  11. Article
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  16. Article
  17. Hypertensive disorders of pregnancy: definition, management, and out-of-office blood pressure measurement.Hypertension research : official journal of the Japanese Society of Hypertension · 2022
    Review
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 1 country.

Haoyue Teng *Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, 215123, China.
Yumei Wang *Department of Obstetrics, The First People's Hospital of TaiCang, Suzhou, Jiangsu Province, China.
Bing HanDepartment of Obstetrics and Gynecology, First Hospital of Soochow University, Suzhou, China.
Jieyu LiuJiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, 215123, China.
Yingying CaoWomen and Children Health Care Center of Taicang, Suzhou, Jiangsu Province, China.
Jiaxiang WangJiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, 215123, China.
Xiaoyan ZhuSuzhou Center for Disease Prevention and Control, Suzhou, 215004, Jiangsu, China.
Jiaojiao FuJiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, 215123, China.
Qi LingDepartment of Obstetrics, The First People's Hospital of TaiCang, Suzhou, Jiangsu Province, China.
Chengqi XiaoJiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, 215123, China.
Zhongxiao WanJiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, 215123, China. zxwan@suda.edu.cn.
Jieyun YinJiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, 215123, China. jyyin@suda.edu.cn.ORCID http://orcid.org/0000-0002-5265-3930
Soochow University · CNTaizhou First People's Hospital · CN

Funding

the Jiangsu Commission of Health H2019010the National Key R&D Program of China 2017YFC1310700 and 2017YFC1310701
6 · The paper itself

Abstract

backgroundAssociations between trajectories of systolic blood pressure (SBP) during pregnancy and pregnant outcomes remain unclear and disparate.

methodsData of 20,353 mothers without chronic hypertension and who delivered live singletons between January, 2014 and November, 2019, was extracted from Taicang register-based cohort. Based on SBP measured during 10 to 40 weeks of gestation, SBP trajectories were explored using latent class growth mixture model, and their associations with maternal and neonatal outcomes were assessed by logistic regression analyses.

resultsSix heterogeneous SBP trajectories were identified: low delayed-increasing (7.47%), low reverse-increasing (21.88%), low-stable (19.13%), medium-stable (21.64%), medium reverse-increasing (16.47%), and high stable (13.41%) trajectories. The high-stable trajectory had SBP around 125 mmHg in the 10th gestational week, and increased slightly onwards. When compared with the low-stable trajectory, the high-stable trajectory had maximally adjusted odds ratio (95% confidence interval) of 5.28 (2.76-10.10), 1.30 (1.13-1.50), 1.53 (1.12-2.08), 1.32 (1.06-1.65) and 1.64 (1.08-2.48) for gestational hypertension (GH), early-term delivery (ETD), preterm delivery (PTD), small for gestational age and low birth weight (LBW), respectively. Besides, the medium reverse-increasing trajectory showed significantly increased risk of GH and ETD, while the medium-stable trajectory had significantly elevated risk of ETD and PTD. Notably, SBP trajectories slightly but significantly improved risk discrimination of GH, ETD and LBW, over traditional risk factors.

conclusionWomen with different SBP trajectories were at varied risk of adverse maternal and fetal outcomes. Meanwhile, our study suggested that BP monitoring during pregnancy is necessary, especially for women with high SBP in early pregnancy or upward trajectory.

Indexed as

Gestational AgeAdultBlood PressureBlood Pressure DeterminationChinaFemaleHumansHypertension, Pregnancy-InducedInfant, Low Birth WeightInfant, NewbornInfant, Small for Gestational AgePregnancyPregnancy OutcomeRisk FactorsFetal outcomeLatent class growth mixture modelMaternal outcomeSystolic blood pressureTrajectory

Identifiers

PMID33618715
PMCPMC7898428
OpenAlexW3131542135

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.