Evidence map›Paper›PMID 32767022›Full record

ArticleEuropean journal of epidemiology2020

Female reproductive factors and the risk of Parkinson's disease: a nationwide cohort study.

Jung Eun Yoo, Dong Wook Shin, Wooyoung Jang, Kyungdo Han, Dahye Kim, Hye-Sung Won, Hye Soon Park

Abstract read
PubMed Publisher
In one paragraph

Article in European journal of epidemiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.6field-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

22 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. The Neurology of Menopause.Current neurology and neuroscience reports · 2026
    Review
  5. Article
  6. Sex and gender-related differences in neurological diseases: current challenges and recommendations for clinical practice.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Review
  7. Review
  8. Review
  9. X-Chromosome Association Study in Latin American Cohorts Identifies New Loci in Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2023
    Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Differences in Sex-Specific Frequency of Glucocerebrosidase Variant Carriers and Familial Parkinsonism.Movement disorders : official journal of the Movement Disorder Society · 2022
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

7 authors at 5 institutions in 1 country.

Jung Eun YooDepartment of Family Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea.
Dong Wook ShinDepartment of Family Medicine, Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-gu, Seoul, 06351, Republic of Korea. dwshin.md@gmail.com.ORCID http://orcid.org/0000-0001-8128-8920
Wooyoung JangDepartment of Neurology, GangNeung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Republic of Korea.
Kyungdo HanDepartment of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea.
Dahye KimDepartment of Medical Statistics, The Catholic University of Korea, Seoul, Republic of Korea.
Hye-Sung WonDepartment of Obstetrics and Gynecology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Hye Soon ParkDepartment of Family Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea. hyesoon@amc.seoul.kr.
Ulsan College · KRCatholic University of Korea · KRSamsung Medical Center · KRSeoul National University Hospital · KRSoongsil University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There are conflicting finds in the literature regarding the association of female estrogen status and the incidence of Parkinson's disease (PD). We aimed to investigate whether female reproductive factors are associated with PD. Using the Korean National Health Insurance System database, 4,729,546 postmenopausal women without PD were identified. The new incidence of PD was defined as subjects with an ICD-10 code for PD (G20) and with a rare intractable disease registration code for PD (V124). The Cox proportional hazard models were used to evaluate the associations of various reproductive factors with incidence of PD. During the median follow-up of 5.84 years, 20,816 individuals were diagnosed with PD. An increased risk of PD was observed in subjects with a later age at menarche (≥ 17 years) compared with reference subjects (13 years ≤ age at menarche ≤ 14 years) (adjusted hazard ratio, aHR 1.10, 95% confidence interval, CI 1.05-1.16). As age at menopause increased, risk of PD decreased (P for trend 0.019). Consistently, decreased risk of PD was observed (aHR 0.91, 95% CI 0.85-0.96) in subjects with longer duration of fertility (≥ 40 years of age) compared with shorter duration of fertility (< 30 years of age). Hormone replacement therapy and oral contraceptives independently increased the risk of PD by 17% and 7%, respectively. Female reproductive factors are independent risk factors for PD, with higher risk associated with shorter lifetime exposure to endogenous estrogen.

Indexed as

MenarcheMenopauseReproductive HistoryAdultAgedCohort StudiesContraceptives, OralFemaleHormone Replacement TherapyHumansIncidenceMiddle AgedParkinson DiseaseProportional Hazards ModelsRetrospective StudiesRisk AssessmentContraceptives, OralDuration of fertilityHormone replacement therapyMenarcheMenopauseParkinson’s disease

Identifiers

PMID32767022
OpenAlexW3047885384

What OpenQuestion holds

Textmetadata
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.