Evidence map›Paper›PMID 30120385›Full record

ArticleEuropean journal of clinical nutrition2019

Maternal haemoglobin concentrations before and during pregnancy as determinants of the concentrations of children at 3-5 years of age: A large follow-up study.

Yiting Zhang, Lei Jin, Jian-Meng Liu, Rongwei Ye, Aiguo Ren

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Article in European journal of clinical nutrition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 22% 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

4 citing papers in PubMed, 5 citations in OpenAlex.

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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

5 authors at 1 institution in 2 countries.

Yiting ZhangHealth Care Department, Haidian Maternal and Child Health Hospital, Beijing, 100080, China.
Lei JinInstitute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University, Beijing, 100191, China.
Jian-Meng LiuInstitute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University, Beijing, 100191, China.
Rongwei YeInstitute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University, Beijing, 100191, China.
Aiguo RenInstitute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University, Beijing, 100191, China. renag@bjmu.edu.cn.ORCID http://orcid.org/0000-0001-9115-5638
Peking University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo examine the association between haemoglobin (Hb) concentrations in mothers before and during pregnancy and those in children at 3-5 years of age.

methodsThe study included 78,923 women who conceived during 1993-1996 and delivered a singleton live infant. Maternal Hb concentrations were measured at pre-pregnancy health check-up and first prenatal visit, and during the second and third trimester. Hb concentrations of children born to these women were measured at 3-5 years of age. Associations between Hb levels in mothers and children were examined. Unconditional logistic regression was used to explore the association between maternal Hb levels and risk for anaemia in children.

resultsMaternal Hb levels before and during pregnancy were positively associated with children's Hb levels. Using maternal Hb ≥ 130 g/L as the referent, the risk for anaemia in children at 3-5 years of age was higher when maternal second trimester Hb concentrations were 70-99 g/L (odds ratio [OR] = 1.76, 95% confidence interval [CI] = 1.56-1.99), 100-109 g/L (OR = 1.45, 95% CI = 1.29-1.64), and 110-119 g/L (OR = 1.18, 95% CI = 1.04-1.33). Children were 1.52 and 1.23-times more likely to suffer from anaemia when maternal third trimester Hb concentrations were 70-99 and 100-109 g/L, respectively. A pre-pregnancy Hb concentration of 80-109 g/L and first prenatal visit Hb concentrations of 80-109 and 100-119 g/L were also associated with increased risks for childhood anaemia.

conclusionLow maternal Hb concentrations before or during pregnancy increase the risk for anaemia in children at 3-5 years of age.

Indexed as

MothersAdultAnemiaCausalityChild, PreschoolChinaFemaleFollow-Up StudiesHemoglobinsHumansMalePregnancyPregnancy ComplicationsRisk FactorsYoung AdultHemoglobins

Identifiers

PMID30120385
OpenAlexW2887519698

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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.