Evidence map›Paper›PMID 31517773›Full record

Trial reportJournal of the Chinese Medical Association : JCMA2019

Effects of prophylactic iron supplementation on outcome of nonanemic pregnant women: A non-randomized clinical trial.

Nasrin Asadi, Homeira Vafaei, Maryam Kasraeian, Sedigeh Yoosefi, Azam Faraji, Lilia Abbasi

Abstract readClinical Trial
In one paragraph

Trial report in Journal of the Chinese Medical Association : JCMA, 2019. 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
–field-weighted citation impact
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.

  1. Iron Salts, High Levels of Hemoglobin and Ferritin in Pregnancy, and Development of Gestational Diabetes: A Systematic Review.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2022
    Pooled it
  2. Review
  3. Article
  4. Do pregnant women with anemia need iron supplementation?Journal of the Chinese Medical Association : JCMA · 2020
    Article
  5. Do healthy pregnant women need iron supplementation?Journal of the Chinese Medical Association : JCMA · 2020
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Nasrin AsadiMaternal-Fetal Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Homeira VafaeiMaternal-Fetal Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Maryam KasraeianMaternal-Fetal Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Sedigeh YoosefiPerinatology Division, Maternal-Fetal Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Azam FarajiPerinatology Division, Maternal-Fetal Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Lilia AbbasiDepartment of Obstetrics and Gynecology, Shiraz University of Medical Sciences, Shiraz, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of the current study was to investigate the effects of prophylactic iron supplementation on the pregnancy outcome of nonanemic pregnant women in a sample of Iranian population.

methodsThis non-randomized clinical trial was conducted during a 2-year period in obstetrics clinics of Shiraz, southern Iran. We included a sample of singleton pregnancies registered in our clinics. Those with comorbidities were excluded. Serum ferritin was measured at baseline and participants were classified accordingly: those with normal serum ferritin levels (≥30 µg/dL) who received standard prophylactic iron supplementation during the pregnancy (Group 1); those who had minor thalassemia and elevated serum ferritin levels (≥30 µg/dL) who did not receive prophylactic iron supplementation or those with normal ferritin levels (≥30 µg/dL) who refused to receive iron supplementation due to gastrointestinal upset (Group 2); and those with iron deficiency anemia with low serum ferritin levels (<30 µg/dL) who received standard iron supplementation during pregnancy (Group 3). All the participants were followed to the delivery and maternal and neonatal outcomes were recorded and compared between three study groups.

resultsOverall we included 30 pregnant women in each group with mean age of the participants was 28.66 ± 6.02 years. There was no significant difference between three study groups regarding gestational age at delivery (p = 0.250), birthweight (p = 0.893), Apgar at 1 (p = 0.532) and 5 (p = 0.590) minutes, and route of delivery (p = 0.590). The overall rate of maternal complication of the pregnancy was comparable between the three study groups (p = 0.188). However, those in group 1, had significantly higher rate of gestational diabetes mellitus (GDM) when compared to other two groups (p = 0.038).

conclusionProphylactic iron supplementation in pregnant women with normal ferritin levels is associated with increased risk of GDM. Other pregnancy and neonatal outcomes are not affected by the prophylactic iron supplementation.

Indexed as

AdultApgar ScoreDiabetes, GestationalDietary SupplementsFemaleFerritinsHumansIronPregnancyPregnancy ComplicationsPregnancy OutcomeFerritinsIron

Identifiers

PMID31517773
PMCPMC13048142

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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.