Evidence map›Paper›PMID 32843001›Full record

Observational studyBMC pregnancy and childbirth2020

Prediction of iatrogenic preterm birth in patients with scarred uterus: a retrospective cohort study in Northeast China.

Liyang Zhang, Hongtian Li, Jiapo Li, Yue Hou, Buxuan Xu, Na Li, Tian Yang, Caixia Liu, Chong Qiao

Open access · goldAbstract readObservational Study
In one paragraph

Observational study 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 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 12% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Observational
  3. Article
  4. Perinatal Outcomes of Pregnancy in Women with Scarred Uteri.International journal of women's health · 2023
    Article
  5. 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

9 authors at 2 institutions in 1 country.

Liyang ZhangDepartment of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, Liaoning Province, China.
Hongtian LiInstitute of Reproductive and Child Health/National Health Commission Key Laboratory of Reproductive Health, Peking University Health Science Center, No. 38 Xueyuan Rd, Beijing, 100191, China.
Jiapo LiDepartment of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, Liaoning Province, China.
Yue HouDepartment of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, Liaoning Province, China.
Buxuan XuChina Medical University, Shenyang, Liaoning Province, China.
Na LiDepartment of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, Liaoning Province, China.
Tian YangDepartment of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, Liaoning Province, China.
Caixia LiuDepartment of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, Liaoning Province, China.
Chong QiaoDepartment of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, Liaoning Province, China. qiaochong2002@hotmail.com.ORCID http://orcid.org/0000-0002-4979-3545
China Medical University · CNPeking University · CN

Funding

National Key R&D Program of China 2016YFC1000404National Natural Science Foundation of China 81370735National Natural Science Foundation of China 81771610the Outstanding Scientific Fund of Shengjing Hospital 201706
6 · The paper itself

Abstract

backgroundTo build a novel and simple model to predict iatrogenic preterm birth in pregnant women with scarred uteri.

methodsIn this retrospective, observational, single-centre cohort study, data from 2315 patients with scarred uteri were collected. Multiple logistic regression analysis and mathematical modelling were used to develop a risk evaluation tool for iatrogenic preterm birth. After modelling, the calibration and discrimination of the model along with decision curve analysis were checked and performed to ensure clinical applicability.

resultsAmong the 2315 patients, 417 (18.0%) had iatrogenic preterm births. The following variables were included in the model: interpregnancy interval (0 to < 12 months, OR 5.33 (95% Cl 1.79-15.91), P = 0.003; 13 to < 24 months (reference), 25 to < 60 months, OR 1.80 (95% CI 0.96-3.40), P = 0.068; ≥ 60 months, OR 1.60 (95% Cl 0.86-2.97), P = 0.14), height (OR 0.95, (95% CI 0.92-0.98), P = 0.003), parity (parity ≤1 (reference), parity = 2, OR 2.92 (95% CI 1.71-4.96), P < 0.0001; parity ≥3, OR 8.26, (95% CI 2.29-29.76), P = 0.001), number of vaginal bleeding (OR 1.81, (95% Cl 1.36-2.41), P < 0.0001), hypertension in pregnancy (OR 9.52 (95% CI 6.46-14.03), P < 0.0001), and placenta previa (OR 4.21, (95% CI 2.85-6.22), P < 0.0001). Finally, a nomogram was developed.

conclusionsIn this study, we built a model to predict iatrogenic preterm birth for pregnant women with scarred uteri. The nomogram we created can assist doctors in evaluating the risk of iatrogenic preterm birth and help in making referrals; thus, better medical care can be given to improve the prognosis of patients and foetuses.

Indexed as

AdultChinaCicatrixCohort StudiesFemaleHumansIatrogenic DiseaseModels, StatisticalPregnancyPremature BirthPrognosisRetrospective StudiesRisk AssessmentUterusIatrogenic preterm birthPrediction modelScarred uterus

Identifiers

PMID32843001
PMCPMC7448350
OpenAlexW3081514877

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.