Evidence map›Paper›PMID 33836822›Full record

ArticleArthritis research & therapy2021

Age at menarche, age at natural menopause, and risk of rheumatoid arthritis - a Mendelian randomization study.

Jingjing Zhu, Zheng Niu, Lars Alfredsson, Lars Klareskog, Leonid Padyukov, Xia Jiang

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 25 citations in OpenAlex.

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  10. Mechanisms of ovarian aging in women: a review.Journal of ovarian research · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 3 countries.

Jingjing ZhuThe First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China.
Zheng NiuDepartment of Gynecology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Lars AlfredssonDepartment of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institute, Tomtebodavägen 5, 17 177, Stockholm, Sweden.
Lars KlareskogCenter for Molecular Medicine, Karolinska Institute, Stockholm, Sweden.
Leonid PadyukovCenter for Molecular Medicine, Karolinska Institute, Stockholm, Sweden.
Xia JiangDepartment of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institute, Tomtebodavägen 5, 17 177, Stockholm, Sweden. xia.jiang@ki.se.ORCID http://orcid.org/0000-0001-5878-8986
Karolinska Institutet · SEHangzhou First People's Hospital · CNHarvard University · USZhejiang Chinese Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHormonal reproductive factors have been suggested to play an important role in the etiology of rheumatoid arthritis (RA), an autoimmune inflammatory disorder affecting primarily women. We conducted a two-sample Mendelian randomization (MR) study examining three relevant exposures, age at menarche (AAM), age at natural menopause (ANM), and age at first birth (AFB) with the risk of RA.

methodsWe collected summary statistics from the hitherto largest GWAS conducted in AAM (N = 329,345), ANM (N = 69,360), AFB (N = 251,151), and RA (N

resultsWe did not find any evidence in support for a causal association between genetically predicted reproductive factors and risk of RA (OR

conclusionsOur MR study does not convincingly support a casual effect of reproductive factors, as reflected by age at menarche, age at menopause, and age at first birth, on the development of RA. Despite the largely augmented set of instruments we used, these instruments only explained a modest proportion of phenotypic variance of exposures. Our knowledge regarding this topic is still insufficient and future studies with larger sample size should be designed to replicate or dispute our findings.

Indexed as

Arthritis, RheumatoidMenarcheFemaleGenome-Wide Association StudyHumansMendelian Randomization AnalysisMenopausePolymorphism, Single NucleotideAge at first birthAge at menarcheAge at natural menopauseMendelian randomizationRheumatoid arthritis

Identifiers

PMID33836822
PMCPMC8034136
OpenAlexW3126441038

What OpenQuestion holds

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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.