Evidence map›Paper›PMID 26439741›Full record

ArticlePloS one2015

Nickel Allergy Is a Risk Factor for Endometriosis: An 11-Year Population-Based Nested Case-Control Study.

Jin-Sung Yuk, Jong Seung Shin, Ji-Yeon Shin, Eunsuk Oh, Hyunmee Kim, Won I Park

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.3field-weighted citation impact, top 17% 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

12 citing papers in PubMed, 22 citations in OpenAlex.

  1. Systemic Nickel Allergy Syndrome.American journal of medicine open · 2026
    Review
  2. Review
  3. Review
  4. Review
  5. Article
  6. Dienogest and the Risk of Reoperation in Endometriosis.Journal of personalized medicine · 2021
    Article
  7. Update of the risk assessment of nickel in food and drinking water.EFSA journal. European Food Safety Authority · 2020
    Article
  8. Article
  9. Article
  10. Article
  11. Nickel-resistant bacteria isolated in human microbiome.New microbes and new infections · 2017
    Article
  12. Observational
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

6 authors at 3 institutions in 1 country.

Jin-Sung YukDepartment of Obstetrics and Gynecology, School of Medicine, Eulji University, Daejeon, South Korea; Department of Obstetrics and Gynecology, MizMedi Hospital, Seoul, South Korea.
Jong Seung ShinDepartment of Obstetrics and Gynecology, Hyundai UVIS hospital, Incheon, South Korea.
Ji-Yeon ShinDepartment of Preventive Medicine, School of Medicine, Eulji University, Daejeon, South Korea.
Eunsuk OhDepartment of Internal Medicine, MizMedi Hospital, Seoul, South Korea.
Hyunmee KimDepartment of Family Medicine, MizMedi Hospital, Seoul, South Korea.
Won I ParkDepartment of Obstetrics and Gynecology, School of Medicine, Eulji University, Daejeon, South Korea.
Eulji University · KRMizMedi Hospital · KRHyundai Research Institute · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA cross-sectional study has reported that nickel allergy is associated with endometriosis. However, causal studies of this association are limited.

objectiveThe objective of this study was to compare the prevalence of nickel allergy in women with and without endometriosis.

methodsWe used a National Health Insurance Service (NHIS) sample cohort dataset that included approximately 1 million individuals from South Korea; the data were obtained between January 01, 2002, and December 31, 2013. We selected the endometriosis group according to diagnosis code (N80.X), surgery codes, and drug codes during the years 2009~2013. The controls were randomly matched to the endometriosis patients at a ratio of 4:1 by age and socioeconomic status. Patients with nickel allergy were defined in the cohort dataset as those with a simultaneous diagnosis code (L23.0) and patch test code during 2002~2008.

resultsIn total, 4,985 women were selected from the NHIS cohort database and divided into an endometriosis group (997 women) and a control group (3,988 women). The number of patients with nickel allergy in the endometriosis group was eight (0.8%), and that in the control group was thirteen (0.3%). After adjustment for age and socioeconomic status, the rate of nickel allergy in was higher in the endometriosis group than in the control group [odds ratio: 2.474; 95% confidence interval: 1.023~5.988; p = 0.044].

conclusionsWe found that nickel allergy is a risk factor for endometriosis.

Indexed as

NickelAdultAge FactorsCase-Control StudiesEndometriosisFemaleHumansHypersensitivityMiddle AgedPrevalenceRepublic of KoreaRisk FactorsSocioeconomic FactorsNickel

Identifiers

PMID26439741
PMCPMC4594920
OpenAlexW1899760382

What OpenQuestion holds

Textmetadata
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.