Evidence map›Paper›PMID 32293318›Full record

ArticleBMC pregnancy and childbirth2020

Effect of previous placenta previa on outcome of next pregnancy: a 10-year retrospective cohort study.

Lizi Zhang, Shilei Bi, Lili Du, Jingjin Gong, Jingsi Chen, Wen Sun, Xinyang Shen, Jingman Tang, Luwen Ren, Guolu Chai and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

9 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Clinical Comparison of Anterior or Posterior Placental Location with Placenta Previa and History of Previous Cesarean Section Delivery.Medical science monitor : international medical journal of experimental and clinical research · 2023
    Article
  7. Article
  8. Article
  9. 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 4 institutions in 1 country.

Lizi ZhangDepartment of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Ave North, Guangzhou, 510515, China.
Shilei BiDepartment of Obstetrics and Gynecology, Guangzhou Medical Centre for Critical Pregnant Women, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Liwan District, Guangzhou, 510150, China.
Lili DuDepartment of Obstetrics and Gynecology, Guangzhou Medical Centre for Critical Pregnant Women, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Liwan District, Guangzhou, 510150, China.
Jingjin GongDepartment of Obstetrics and Gynecology, Guangzhou Medical Centre for Critical Pregnant Women, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Liwan District, Guangzhou, 510150, China.
Jingsi ChenDepartment of Obstetrics and Gynecology, Guangzhou Medical Centre for Critical Pregnant Women, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Liwan District, Guangzhou, 510150, China.
Wen SunDepartment of Obstetrics and Gynecology, Guangzhou Medical Centre for Critical Pregnant Women, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Liwan District, Guangzhou, 510150, China.
Xinyang ShenDepartment of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Ave North, Guangzhou, 510515, China.
Jingman TangDepartment of Obstetrics and Gynecology, Guangzhou Medical Centre for Critical Pregnant Women, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Liwan District, Guangzhou, 510150, China.
Luwen RenDepartment of Obstetrics and Gynecology, Guangzhou Medical Centre for Critical Pregnant Women, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Liwan District, Guangzhou, 510150, China.
Guolu ChaiDepartment of Obstetrics and Gynecology, Guangzhou Medical Centre for Critical Pregnant Women, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Liwan District, Guangzhou, 510150, China.
Zhijian WangDepartment of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Ave North, Guangzhou, 510515, China. wzjnfyy@163.com.
Dunjin ChenDepartment of Obstetrics and Gynecology, Guangzhou Medical Centre for Critical Pregnant Women, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Liwan District, Guangzhou, 510150, China. gzdrchen@gzhmu.edu.cn.
Third Affiliated Hospital of Guangzhou Medical University · CNGuangzhou Medical University · CNSouthern Medical University · CNNanfang Hospital · CN

Funding

National Key R&D Program of China 2018YFC1002900National Key R&D Program of China No. 2016YFC1000405, 2017YFC1001402the National Natural Science Foundation 81671533the National Natural Science Foundation No. 81830045 and 81571518
6 · The paper itself

Abstract

backgroundTo determine the effects of previous placenta previa on the maternal and neonatal outcomes of the next pregnancy.

methodsThis 10-year retrospective cohort study was conducted in the Department of Obstetrics and Gynecology, Third Affiliated Hospital of Guangzhou Medical University, between January 2009 and 2018. We retrospectively analyzed the effects of a previous singleton pregnancy in women with and without placenta previa on the outcomes of the subsequent pregnancy. To control for confounders, we used multiple logistic regression models.

resultsA total of 57,251 women with singleton pregnancies gave birth during the 10-year study period. Among them, 6070 women had two consecutive births. For the first pregnancy, 1603 women delivered by cesarean delivery and 4467 by vaginal delivery. Among women with a history of cesarean delivery, placenta previa was an independent risk factor for hemorrhage (adjusted odds ratio [aOR]: 2.25, 95% confidence interval [CI]: 1.1-4.62), placenta accreta spectrum (PAS) disorders (aOR: 4.11, 95% CI: 1.68-10.06), and placenta previa (aOR: 6.24, 95% CI: 2.85-13.67) during the subsequent pregnancy. Puerperal infection, blood transfusion, and perinatal outcomes did not significantly differ between women with a history of placenta previa and women without this history. Among women with a history of vaginal delivery, placenta previa increased the risk of PAS disorders (aOR: 5.71, 95% CI: 1.81-18.03) and placenta previa (aOR: 4.14, 95% CI: 1.07-16.04) during the subsequent pregnancy. There was no significant difference between the two groups in terms of hemorrhage, blood transfusion, puerperal infection, and perinatal outcomes.

conclusionsWomen with a history of placenta previa are at risk for adverse outcomes such as postpartum hemorrhage, PAS disorders, and placenta previa in the subsequent pregnancy.

Indexed as

Postpartum HemorrhageAdultChinaDelivery, ObstetricFemaleHumansOdds RatioPlacenta AccretaPlacenta PreviaPregnancyPregnancy OutcomeRetrospective StudiesRisk FactorsCesarean deliveryPlacenta previaPregnancy outcomesSubsequent pregnancy

Identifiers

PMID32293318
PMCPMC7161269
OpenAlexW3015972841

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.