Evidence map›Paper›PMID 30676383›Full record

ArticleJournal of clinical rheumatology : practical reports on rheumatic & musculoskeletal diseases2020

Prevalence and Incidence of Rheumatoid Arthritis in Canadian First Nations and Non-First Nations People: A Population-Based Study.

Carol A Hitchon, Sazzadul Khan, Brenda Elias, Lisa M Lix, Christine A Peschken

Open access · hybridAbstract read
In one paragraph

Article in Journal of clinical rheumatology : practical reports on rheumatic & musculoskeletal diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% 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, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. 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
  3. Association between trabecular bone score and cardiovascular outcomes: a population-level historical cohort study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2026
    Article
  4. Article
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  10. Article
  11. Targeting Therapeutic Windows for Rheumatoid Arthritis Prevention.Chinese journal of integrative medicine · 2024
    Review
  12. Review
  13. Article
  14. Global epidemiology of rheumatoid arthritis.Nature reviews. Rheumatology · 2022
    Review
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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 1 institution in 1 country.

Carol A HitchonFrom the Departments of Internal Medicine.
Sazzadul KhanCommunity Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.
Brenda EliasFrom the Departments of Internal Medicine.
Lisa M LixFrom the Departments of Internal Medicine.
Christine A PeschkenFrom the Departments of Internal Medicine.
University of Manitoba · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of this study was to determine the prevalence, incidence, and onset age at rheumatoid arthritis (RA) diagnosis in First Nations (FN) and non-FN populations in Manitoba, Canada.

methodsPopulation-based administrative health records from April 1, 1995, to March 31, 2010, were accessed for all Manitobans. The FN population was identified using the Federal Indian Registry File. Crude and adjusted RA prevalence and incidence rates (adjusted for age, sex, health region of residence) were compared using Poisson regression and reported as relative rates (RRs) with 95% confidence intervals (CIs). Mean (CI) diagnosis age and physician visits were compared with Student t tests.

resultsRheumatoid arthritis crude prevalence increased between 2000 and 2010 to 0.65%; adjusted RA prevalence in females was 1.0% and in males was 0.53%. The 2009/2010 adjusted RA prevalence was higher in FN than non-FN (RR, 2.55; CI, 2.08-3.12) particularly for ages 29 to 48 years (RR, 4.52; CI, 2.71-7.56). Between 2000 and 2010, crude RA incidence decreased from 46.7/100,000 to 13.4/100,000. Adjusted RA incidence remained higher in FN than non-FN (2000-2010 RR, 2.1; CI, 1.7-2.6; p < 0.0001) particularly for ages 29 to 48 years (RR, 4.6; CI, 2.8-7.4; p < 0.0001). The FN population was younger at diagnosis than the non-FN population (mean age, 39.6 years [CI, 38.3-40.8 years] vs. 53.3 years [CI, 52.7-53.9 years]; p < 0.0001). The FN population had more physician visits but fewer rheumatology visits than the non-FN population.

conclusionsRheumatoid arthritis prevalence is increasing, and RA incidence is decreasing in Manitoba. The FN population has a greater prevalence and incidence of RA and is younger at diagnosis than the non-FN population. When combined with fewer rheumatology visits, this significant care gap highlights the need to optimize rheumatology care delivery to the FN population.

Indexed as

Arthritis, RheumatoidAdultCanadaFemaleHumansIncidenceMaleManitobaMiddle AgedPrevalence

Identifiers

PMID30676383
PMCPMC7386864
OpenAlexW2912493169

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.