Evidence map›Paper›PMID 27662834›Full record

ArticleReproductive health2016

Age at menarche in Korean adolescents: trends and influencing factors.

Mee-Hwa Lee, Shin Hye Kim, Minkyung Oh, Kuk-Wha Lee, Mi-Jung Park

Open access · goldAbstract read
In one paragraph

Article in Reproductive health, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
10.6field-weighted citation impact, top 2% 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 85 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Genetic insights into the relationship between age at menarche and mental health-related phenotypes.European psychiatry : the journal of the Association of European Psychiatrists · 2026
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  10. Study ofChildren (Basel, Switzerland) · 2024
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  14. Decline in the Age of Menarche in Istanbul Schoolgirls Over the Last 12 YearsJournal of clinical research in pediatric endocrinology · 2023
    Article
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  16. Discrete-time Survival Analysis of Risk Factors for Early Menarche in Korean Schoolgirls.Journal of preventive medicine and public health = Yebang Uihakhoe chi · 2023
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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 4 institutions in 2 countries.

Mee-Hwa LeeDepartment of Obstetrics and Gynecology, CHA Bundang Medical Center, School of Medicine, CHA University, 59 Yatap-ro, Bundang-gu, Seongnam, 13496, Korea.
Shin Hye KimDepartment of Pediatrics, Sanggye Paik Hospital, Inje University College of Medicine, 761-1 Sanggye-7-dong, Nowon-gu, 139-707, Seoul, Korea.
Minkyung OhClinical Trial Center, Busan Paik Hospital and Department of Pharmacology, Inje University College of Medicine, Busan, Korea.
Kuk-Wha LeeAdventist Health System, Orlando, FL, USA.
Mi-Jung ParkDepartment of Pediatrics, Sanggye Paik Hospital, Inje University College of Medicine, 761-1 Sanggye-7-dong, Nowon-gu, 139-707, Seoul, Korea. PMJ@paik.ac.kr.
Inje University Sanggye Paik Hospital · KRAdventist University of Health Sciences · USCHA University · KRInje University Busan Paik Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAn increased incidence of central precocious puberty has been recently reported in South Korea, which suggests an ongoing downward trend in pubertal development in the Korean population. We aimed to verify the trend in age at menarche in young Korean women during the last decade and associated factors.

methodsWe analyzed a population-based sample of 3409 Korean girls, aged 10-18 years, using data from the Korean National Health and Nutrition Examination Surveys (KNHANES) II (2001), III (2005), IV (2007-2009), and V (2010 and 2011). Average age at menarche was studied using the Kaplan-Meier survival method and predictors were analyzed using Cox proportional hazards model. The percentage of subjects who had experienced menarche at each age level was compared by using the Cochran-Armitage test.

resultsOverall mean age at menarche was 12.7 years. The percentage of subjects who experienced menarche before the age of 12 years was 21.4 % in 2001 but increased to 34.6 % in 2010/2011 (p < 0.01). In addition, the percentage of girls who experienced menarche before the age of 14 years increased from 76 % in 2001 to 92 % in 2010/2011 (p < 0.005). Adolescents whose mothers who had experienced early menarche (HR 1.48, 95 % CI [1.22-1.80]), and adolescents who were overweight (HR 1.24, 95 % CI [1.04-1.49]) were more likely to have experienced menarche. Additionally, underweight adolescents (HR 0.27, 95 % CI [0.12-0.60]) and adolescents who had a mother having late menarche (HR 0.68, 95 % CI [0.59-0.79]) were expected to have late menarche. None of the socioeconomic factors assessed in our study showed an association with age at menarche.

conclusionsA downward trend in age at menarche was defined in Korean adolescents during the last decade. Furthermore, influences of genetic and nutritional parameters on individual variance in age at menarche were defined.

Indexed as

AdolescentsMenarchePubertySecular trend

Identifiers

PMID27662834
PMCPMC5035449
OpenAlexW2521408690

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.