Evidence map›Paper›PMID 32238782›Full record

Observational studyJournal of the Chinese Medical Association : JCMA2020

Association between maternal anemia at admission for delivery and adverse perinatal outcomes.

Fu-Chieh Chu, Steven W Shaw, Liang-Ming Lo, T'sang-T'ang Hsieh, Tai-Ho Hung

Erratum issuedOpen access · hybridAbstract readObservational Study
In one paragraph

Observational study in Journal of the Chinese Medical Association : JCMA, 2020. 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 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
4.6field-weighted citation impact, top 5% 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

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  4. Low-dose aspirin and anaemia risk in pregnancy: A scoping review with emphasis on low- and middle-income contexts.South African family practice : official journal of the South African Academy of Family Practice/Primary Care · 2026
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  17. Maternal weight gain and birth weight.Journal of the Chinese Medical Association : JCMA · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Fu-Chieh ChuDepartment of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan, ROC.
Steven W ShawDepartment of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan, ROC.
Liang-Ming LoDepartment of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan, ROC.
T'sang-T'ang HsiehDepartment of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan, ROC.
Tai-Ho HungDepartment of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan, ROC.
Chang Gung Memorial Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMaternal anemia is a risk factor for poor pregnancy outcomes and threatens maternal or fetal life. Anemia increases the risk of low birth weight and preterm birth. We aimed to determine the cutoff level of hemoglobin and risk factors for maternal anemia at admission for delivery and investigate the association between maternal anemia and adverse perinatal outcomes in contemporary Taiwanese women.

methodsAbout 32,234 women admitted to the Taipei Chang Gung Memorial Hospital from 2001 to 2016 were enrolled in this retrospective observational cohort study. The prevalence of pre-delivery maternal anemia in Taiwan and the maternal demographic and perinatal outcomes associated with maternal anemia was assessed.

resultsThe 10th and 5th percentile hemoglobin levels of the test cohort (2001-2008, n = 15,602) were 10.8 g/dL and 9.9 g/dL, respectively. In the study cohort (2009-2016, n = 13,026), women who were multiparous, who were aged >34 years, with history of cesarean delivery, and with history of uterine fibroids had higher prevalence of anemia. Anemic women were at increased risk of cesarean delivery, primary cesarean delivery, premature rupture of membranes, early preterm birth <34 weeks, having very low birth weight infants (<1,500 g), having large for gestational age infants, and neonatal intensive care center transfer, but at lower risk of having small for gestational age infants.

conclusionMaternal anemia at delivery is a risk factor for primary cesarean delivery and adverse maternal and neonatal outcomes. Furthermore, we hypothesize that maternal anemia might increase fetoplacental vasculogenesis and angiogenesis as an adaptive response.

Indexed as

Pregnancy Complications, HematologicAdultAnemiaCesarean SectionFemaleFetal DevelopmentHumansInfant, NewbornPregnancyPremature BirthRetrospective Studies

Identifiers

PMID32238782
PMCPMC13048132
OpenAlexW2987496667

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.