ArticleClinical rheumatology2021
Prevalence of rheumatoid arthritis in Edmonton and Northern Alberta.
Article in Clinical rheumatology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
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Who cites it
3 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A systematic review on masticatory muscle activity of temporomandibular joint in patients with rheumatoid arthritis.Acta odontologica Scandinavica · 2025Pooled it
- Triptolide alleviates rheumatoid arthritis via modulating gut microbiota - intestinal barrier - TLR4/NF-κB axis.Open life sciences · 2026Article
- Increased Risk of Temporomandibular Joint Disorder in Patients with Rheumatoid Arthritis: A Longitudinal Follow-Up Study.Journal of clinical medicine · 2020Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe purpose of this study was to compare and contrast the prevalence of rheumatoid arthritis in Northern Alberta estimated by health administrative data and data from a rheumatologist-based prescription database.
methodsThe study was performed using administrative health data from the province of Alberta through the local health authority. The cases and population identified in the database were reported from the year 2016. Rheumatology prescribing data was accessed through the Physician Learning Program and based on Alberta health billing data of actively practicing rheumatologists between the years 2012 and 2016. Ethics was provided by the Conjoint Health Research Ethics Boards at the University of Calgary (REB 13-0459).
resultsThe total population of the area examined was determined to be 2,086,181. The administrative health database identified 42,354 cases of RA based on their case definition with a prevalence of 2.08%. Based on rheumatologist diagnosis and prescribing data, the number of cases identified was 11,273 cases of RA with a prevalence of 0.542%. The average percentage of identified RA patients being seen by a rheumatologist was determined to be 26.7% with the range of 19.8 to 39.9%.
conclusionIn conclusion, this study compares and contrasts the prevalence of rheumatoid arthritis reported by administrative data versus identification by specialists. Our study again illustrates that accuracy of case definitions when studying chronic conditions such as rheumatoid arthritis is paramount. The results also suggest a lack of access to rheumatologist services in Northern Alberta and reiterate the need for ongoing recruitment of new rheumatologists as has been highlighted previously. Key Points • The main contribution of this paper is to compare and contrast the prevalence of rheumatoid arthritis as reported by administrative data versus identification by specialists. • Our study also shows the distribution of rheumatoid arthritis in a large geographical area and illustrates a lack of access to subspecialty care in certain regions.
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Registered trials
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