Evidence map›Paper›PMID 33838659›Full record

ArticleBMC pregnancy and childbirth2021

A birth population-based survey of preterm morbidity and mortality by gestational age.

Xiaojing Guo, Xiaoqiong Li, Tingting Qi, Zhaojun Pan, Xiaoqin Zhu, Hui Wang, Ying Dong, Hongni Yue, Bo Sun

Erratum issuedOpen 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. An erratum has been issued. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

14 citing papers in PubMed, 41 citations in OpenAlex.

  1. Neonatal Outcomes Following Preterm Birth Between 28 and 36 Weeks' Gestation in Vietnam: A Cohort Study.The Australian & New Zealand journal of obstetrics & gynaecology · 2026
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  8. Antenatal pyelonephritis: a three-year retrospective cohort study of two Irish maternity centres.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2023
    Article
  9. Morbidity and mortality in neonates with Down Syndrome based on gestational age.Journal of perinatology : official journal of the California Perinatal Association · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Xiaojing GuoThe NCH Key Laboratory of Neonatal Diseases, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, 201102, China.
Xiaoqiong LiDepartment of Obstetrics, Huai'an Women and Children's Hospital, Huai'an, 223002, Jiangsu, China.
Tingting QiDepartment of Obstetrics, Huai'an Women and Children's Hospital, Huai'an, 223002, Jiangsu, China.
Zhaojun PanDepartment of Neonatology and Unit of Population Health Information, Huai'an Women and Children's Hospital, 104 South Ren Min Road, Huai'an, 223002, Jiangsu, China.
Xiaoqin ZhuUnit of Population Health Information, Huai'an Women and Children's Hospital, Huai'an, 223002, Jiangsu, China.
Hui WangUnit of Population Health Information, Huai'an Women and Children's Hospital, Huai'an, 223002, Jiangsu, China.
Ying DongThe NCH Key Laboratory of Neonatal Diseases, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, 201102, China.
Hongni YueDepartment of Neonatology and Unit of Population Health Information, Huai'an Women and Children's Hospital, 104 South Ren Min Road, Huai'an, 223002, Jiangsu, China. yuehongni@hotmail.com.
Bo SunThe NCH Key Laboratory of Neonatal Diseases, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, 201102, China. bsun@shmu.edu.cn.
Xuzhou Medical College · CNChildren's Hospital of Fudan University · CNSecond People’s Hospital of Huai’an · CN

Funding

Jiangsu Provincial Commission of Health and Family Planning (CN) F201402Shanghai Municipal Health Bureau Project Young Physician InvestigatorYoung Scientists Fund 81501288
6 · The paper itself

Abstract

backgroundDespite 15-17 millions of annual births in China, there is a paucity of information on prevalence and outcome of preterm birth. We characterized the outcome of preterm births and hospitalized preterm infants by gestational age (GA) in Huai'an in 2015, an emerging prefectural region of China.

methodsOf 59,245 regional total births, clinical data on 2651 preterm births and 1941 hospitalized preterm neonates were extracted from Huai'an Women and Children's Hospital (HWCH) and non-HWCH hospitals in 2018-2020. Preterm prevalence, morbidity and mortality rates were characterized and compared by hospital categories and GA spectra. Death risks of preterm births and hospitalized preterm infants in the whole region were analyzed with multivariable Poisson regression.

resultsThe prevalence of extreme, very, moderate, late and total preterm of the regional total births were 0.14, 0.53, 0.72, 3.08 and 4.47%, with GA-specific neonatal mortality rates being 44.4, 15.8, 3.7, 1.5 and 4.3%, respectively. There were 1025 (52.8% of whole region) preterm admissions in HWCH, with significantly lower in-hospital death rate of inborn (33 of 802, 4.1%) than out-born (23 of 223, 10.3%) infants. Compared to non-HWCH, three-fold more neonates in HWCH were under critical care with higher death rate, including most extremely preterm infants. Significantly all-death risks were found for the total preterm births in birth weight <  1000 g, GA < 32 weeks, amniotic fluid contamination, Apgar-5 min < 7, and birth defects. For the hospitalized preterm infants, significantly in-hospital death risks were found in out-born of HWCH, GA < 32 weeks, birth weight <  1000 g, Apgar-5 min < 7, birth defects, respiratory distress syndrome, necrotizing enterocolitis and ventilation, whereas born in HWCH, antenatal glucocorticoids, cesarean delivery and surfactant use decreased the death risks.

conclusionsThe integrated data revealed the prevalence, GA-specific morbidity and mortality rate of total preterm births and their hospitalization, demonstrating the efficiency of leading referral center and whole regional perinatal-neonatal network in China. The concept and protocol should be validated in further studies for prevention of preterm birth.

Indexed as

Gestational AgePerinatal MortalityChinaFemaleHospitalizationHospital MortalityHospitals, MaternityHumansInfant, NewbornMalePerinatal CarePregnancyPremature BirthPrevalenceBirth populationGestationMorbidityMortalityPretermPrevalenceRegional perinatal-neonatal network

Identifiers

PMID33838659
PMCPMC8037918
OpenAlexW3152569065

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.