Evidence map›Paper›PMID 30658685›Full record

ArticleArthritis research & therapy2019

Association between severity of periodontitis and clinical activity in rheumatoid arthritis patients: a case-control study.

Beatriz Rodríguez-Lozano, Jerián González-Febles, Jorge Luis Garnier-Rodríguez, Shashi Dadlani, Sagrario Bustabad-Reyes, Mariano Sanz, Fernando Sánchez-Alonso, Carlos Sánchez-Piedra, Enrique González-Dávila, Federico Díaz-González

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed, 6 pooled it
14.2field-weighted citation impact, top 1% 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

83 citing papers in PubMed, 6 syntheses or guidelines pooled it, 150 citations in OpenAlex.

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  8. Article
  9. Review
  10. Exploring oral health care needs of Canadians with rheumatic diseases: a qualitative study.Canadian journal of dental hygiene : CJDH = Journal canadien de l'hygiene dentaire : JCHD · 2026
    Article
  11. Article
  12. Low salivary thioredoxin-1 levels in periodontitis.World journal of clinical cases · 2026
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. High Salivary 3-Nitrotyrosine Levels in Periodontitis.Journal of clinical medicine · 2025
    Article
  18. Article
  19. Article
  20. Review

23 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

10 authors at 4 institutions in 1 country.

Beatriz Rodríguez-LozanoServicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain.
Jerián González-FeblesPeriodoncia, Facultad de Odontología, Universidad Complutense, Madrid, Spain.
Jorge Luis Garnier-RodríguezClínica Dental Dr. Garnier, S/C de Tenerife, Spain.
Shashi DadlaniClínica Dental Dr. Garnier, S/C de Tenerife, Spain.
Sagrario Bustabad-ReyesServicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain.
Mariano SanzGrupo de Investigación de Etiología y Tratamiento de las Enfermedades Periodontales (ETEP), Facultad de Odontología, Universidad Complutense, Madrid, Spain.
Fernando Sánchez-AlonsoUnidad de Investigación de la Sociedad Española de Reumatología, Madrid, Spain.
Carlos Sánchez-PiedraUnidad de Investigación de la Sociedad Española de Reumatología, Madrid, Spain.
Enrique González-DávilaDepartamento de Estadística e Investigación Operativa, Universidad de La Laguna, S/C de Tenerife, La Laguna, Spain.
Federico Díaz-GonzálezServicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain. Federico.diaz.gonzalez@gmail.com.ORCID 0000-0002-4139-9295
Hospital Universitario de Canarias · ESSociedad Española de Reumatología · ESUniversidad Complutense de Madrid · ESUniversidad de La Laguna · ES

Funding

Instituto de Salud Carlos III 15/01810
6 · The paper itself

Abstract

backgroundA high prevalence of periodontitis has been reported in rheumatoid arthritis (RA) patients, although the strength of this association, its temporal link and the possible relationship between the severity of periodontitis and RA disease activity remain unclear. The objective of this work was to investigate whether periodontitis is associated with RA and whether periodontitis severity is linked to RA disease activity.

methodsThis case-control study included 187 patients diagnosed with RA and 157 control patients without inflammatory joint disease. RA disease activity and severity were evaluated by the Disease Activity Score 28, the Simplified Disease Activity Index, the Clinical Disease Activity Index, rheumatoid factor, anti-citrullinated protein antibody titers, the erythrocyte sedimentation rate, C-reactive protein, presence of extra-articular manifestations and type of RA therapy. Exposure severity was assessed by the following periodontal parameters: plaque index, bleeding on probing, probing pocket depth and clinical attachment levels. Sociodemographic variables and comorbidities were evaluated as confounding variables. Outcome and exposure variables were compared by both parametric and nonparametric tests, and possible associations were assessed through regression analysis with a calculation for the adjusted odds ratio (OR).

resultsA significant association was demonstrated between periodontitis and RA with an adjusted OR of 20.57 (95% CI 6.02-70.27, p < 0.001). Compared with controls, all parameters related to periodontal status (plaque index, bleeding on probing, probing pocket depth and clinical attachment levels) were significantly worse in RA patients (p < 0.001). Periodontitis severity was significantly associated with RA disease activity (p < 0.001), showing in an ordinal logistic regression model an association between periodontal severity and disease activity with an adjusted OR of 2.66 (95% CI 1.24-5.74, p = 0.012).

conclusionA significant association was demonstrated between periodontitis and RA, independent of other confounders. This association was more evident in patients with pronounced periodontal disease and higher RA disease activity.

Indexed as

Severity of Illness IndexAdultAgedAnti-Citrullinated Protein AntibodiesArthritis, RheumatoidBlood SedimentationCase-Control StudiesC-Reactive ProteinFemaleHumansMaleMiddle AgedOdds RatioOutcome Assessment, Health CarePeriodontal IndexPeriodontitisAnti-Citrullinated Protein AntibodiesC-Reactive ProteinRheumatoid FactorDisease activityPeriodontitisRheumatoid arthritis

Identifiers

PMID30658685
PMCPMC6339403
OpenAlexW2942835542

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.