Evidence map›Paper›PMID 26389947›Full record

SynthesisNutrients2015

The Relationship between Serum Zinc Level and Preeclampsia: A Meta-Analysis.

Yue Ma, Xiaoli Shen, Dongfeng Zhang

Open access · goldAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in Nutrients, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 4 pooled it
3.1field-weighted citation impact, top 9% 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

26 citing papers in PubMed, 4 syntheses or guidelines pooled it, 58 citations in OpenAlex.

  1. Pooled it
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  6. Observational
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  20. Zinc.Advances in food and nutrition research · 2021
    Review
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

3 authors at 1 institution in 1 country.

Yue MaDepartment of epidemiology and health statistics, Medical college, Qingdao University, No.38 Dengzhou Road, Qingdao 266021, China. murphy.ma@163.com.
Xiaoli ShenDepartment of epidemiology and health statistics, Medical college, Qingdao University, No.38 Dengzhou Road, Qingdao 266021, China. shenxiaoli2000@163.com.
Dongfeng ZhangDepartment of epidemiology and health statistics, Medical college, Qingdao University, No.38 Dengzhou Road, Qingdao 266021, China. zhangdf1961@126.com.
Qingdao University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The association between serum zinc level and preeclampsia (PE) remains controversial. A systematic literature search was performed in PubMed, Web of Science and Embase for relevant available articles. The articles were limited to those in English from January 1990 to April 2015. Observational studies evaluating the association between serum zinc level and PE were included. The I² was used to assess heterogeneity and the random effect model (REM) was adopted as the pooling method. The pooled standard mean difference (SMD) with 95% confidence interval (CI) was used to estimate the association between serum zinc level and PE. Seventeen observational studies were included. Compared with healthy pregnancy controls, PE patients have lower serum zinc level in 14 studies about total PE (SMD (95% CI): -0.587 (-0.963, -0.212), Z = 3.06, p for Z = 0.002; I² = 88.4%, p for I² < 0.0001). In subgroup analysis, a lower serum zinc level in PE patients compared with healthy pregnancy controls was observed in studies conducted in Asia, studies with zinc level measured in serum, and studies involving fasting participants. The SMD did not differ significantly between studies with healthy pregnancy controls matched by individual age (yes or no), and by individual gestational age (yes or no), respectively. Results from this meta-analysis indicate that serum zinc level in PE patients is significantly lower than that in healthy pregnancy controls. A moderate amount of zinc supplementation during pregnancy is advocated to reduce the incidence of PE.

Indexed as

AdultBiomarkersCase-Control StudiesDeficiency DiseasesDietary SupplementsFemaleHumansIncidencePre-EclampsiaPregnancyRisk FactorsYoung AdultZincBiomarkersZincmeta-analysispreeclampsiazincZn

Identifiers

PMID26389947
PMCPMC4586561
OpenAlexW2151886053

What OpenQuestion holds

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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.