Evidence map›Paper›PMID 35004455›Full record

ArticleChild health nursing research2020

Relationships of Lead, Mercury and Cadmium Levels with the Timing of Menarche among Korean Girls.

Hye Seon Choi

Open access · goldAbstract read
In one paragraph

Article in Child health nursing research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

8 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Heavy metals as endocrine disruptors.Turkish journal of medical sciences · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Invited Perspective: Metals and Menarche.Environmental health perspectives · 2023
    Article
  7. Manganese and Lead Exposure and Early Puberty Onset in Children Living near a Ferromanganese Alloy Plant.International journal of environmental research and public health · 2022
    Article
  8. Article
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

1 author at 1 institution in 1 country.

Hye Seon ChoiAssistant Professor, College of Nursing, Woosuk University, Wanju, Korea.ORCID 0000-0003-4834-2723
Woosuk University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study utilized data from the Korean National Health and Nutrition Examination Survey (KNHANES) to explore differences in the timing of menarche in Korean girls according to blood heavy metal concentrations.

methodsThis study performed a secondary analysis of cross-sectional data from the sixth KNHANES. Data from 179 female children and adolescents aged 10~18 were included in this study. The relationships of blood heavy metal concentrations (lead, mercury, and cadmium) with age of menarche were analyzed using complex sample multiple logistic regression.

resultsIn the participants of this study, the geometric mean values of blood lead, mercury, and cadmium concentrations were 1.15±0.04

conclusionThrough an analysis of national big data, this study found evidence that Korean girls showed a younger age at menarche in response to higher blood lead and mercury concentrations. To prevent and manage precocious puberty in Korean children and adolescents, a systematic policy that monitors both exposure to environmental hazards and blood heavy metal concentrations is needed.

Indexed as

ChildLeadMenarcheMercuryPuberty precocious

Identifiers

PMID35004455
PMCPMC8650882
OpenAlexW3005082417

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.