Evidence map›Paper›PMID 28828251›Full record

ArticlePeerJ2017

Periodontal inflammatory disease is associated with the risk of Parkinson's disease: a population-based retrospective matched-cohort study.

Chang-Kai Chen, Yung-Tsan Wu, Yu-Chao Chang

Open access · goldAbstract read
In one paragraph

Article in PeerJ, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 2 pooled it
4.8field-weighted citation impact, top 4% 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

61 citing papers in PubMed, 2 syntheses or guidelines pooled it, 94 citations in OpenAlex.

  1. Pooled it
  2. Oral Microbiota Associated With Parkinson'S Disease: A Systematic Review.Special care in dentistry : official publication of the American Association of Hospital Dentists, the Academy of Dentistry for the Handicapped, and the American Society for Geriatric Dentistry
    Pooled it
  3. Article
  4. Review
  5. Review
  6. Review
  7. Parkinson's disease and Porphyromonas gingivalis levels: a case-control study.Journal of applied oral science : revista FOB · 2026
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Frontiers in immunology · 2025
    Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Review
  19. Review
  20. Potential correlation between chronic periodontitis and Parkinson's disease.Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2024
    Article

1 more citing papers are in PubMed but not listed here.

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

3 authors at 3 institutions in 1 country.

Chang-Kai ChenSchool of Dentistry, Chung Shan Medical University, Taichung, Taiwan.
Yung-Tsan WuDepartment of Physical Medicine and Rehabilitation, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan.
Yu-Chao ChangSchool of Dentistry, Chung Shan Medical University, Taichung, Taiwan.
Chung Shan Medical University · TWKaohsiung Armed Forces General Hospital · TWTri-Service General Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe cause-effect relation between periodontal inflammatory disease (PID) and Parkinson's disease (PD) remains uncertain. The purpose of our study was to investigate the association between PID and PD.

methodsWe conducted a retrospective matched-cohort study by using Taiwan's National Health Insurance Research Database. We identified 5,396 patients with newly diagnosed PID during 1997-2004 and 10,792 cases without PID by matching sex, age, index of year (occurrence of PID), and comorbidity. Cox proportional hazard regression was used to evaluate the risk of subsequent PD.

resultsAt the final follow-up, a total of 176 (3.26%) and 275 (2.55%) individuals developed PD in the case and control groups, respectively. Patients with PID have a higher risk of developing PD (adjusted hazard ratio = 1.431, 95% CI [1.141-1.794], DISCUSSION: Our results show that PID is associated with an increased risk of developing PD. Whilst these findings suggest that reducing PID may modify the risk of developing PD, further study will be needed.

Indexed as

GingivitisOral healthParkinson’s diseasePeriodontitisRisk factors

Identifiers

PMID28828251
PMCPMC5554596
OpenAlexW2742341379

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.