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Arthritis Care Res (Hoboken). 2017 Apr;69(4):467-474. doi: 10.1002/acr.22959. Epub 2017 Mar 9.

Inflammatory Arthritis Prevalence and Health Services Use in the First Nations and Non-First Nations Populations of Alberta, Canada.

Author information

1
University of Calgary, Calgary, Alberta, Canada.
2
University of Alberta, Edmonton, Alberta, Canada.
3
Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.
4
University of Manitoba, Winnipeg, Manitoba, Canada.
5
University of British Columbia, Vancouver, Canada, Arthritis Research Centre of Canada, Richmond, British Columbia, Canada, and University of Queensland, Australia.

Abstract

OBJECTIVE:

To estimate prevalence of rheumatoid arthritis (RA), ankylosing spondylitis (AS), psoriatic disease (PsD), and crystal-related arthritis and health care use for inflammatory arthritis in First Nations and non-First Nations patients in Alberta, Canada.

METHODS:

Population-based cohorts of adults with RA, AS, PsD, and crystal-related arthritis were defined, with First Nations determination by premium payer status, to estimate prevalence rates. Rates of outpatient primary care, specialist visits, and hospitalizations (all-cause, inflammatory-arthritis specific) were estimated.

RESULTS:

RA affected 3 times as many First Nations residents compared to non-First Nations residents (standardized rate ratio [SRR] 3.2, 95% confidence interval [95% CI] 2.9-3.4). AS and PsD were more prevalent in First Nations (AS 0.6 per 100 residents; SRR 2.7, 95% CI 2.3-3.2 and PsD 0.3 per 100 residents; SRR 1.5, 95% CI 1.3-1.9), whereas crystal-related arthritis was less prevalent (SRR 0.7, 95% CI 0.6-0.7). First Nations patients were more likely to have primary care visits (SRR 1.7, 95% CI 1.6-1.8) and less likely to have specialist visits (SRR 0.6, 95% CI 0.6-0.7) for RA relative to non-First Nations individuals. In PsD and crystal-related arthritis, First Nations people had higher rates of cause-specific hospitalizations.

CONCLUSION:

The estimated prevalence of RA, AS, and PsD was higher in the First Nations population, while crystal-related arthritis was less prevalent compared to the non-First Nations population. First Nations people were more likely to see primary care physicians and were less likely to see specialists for inflammatory arthritis care.

PMID:
27333120
DOI:
10.1002/acr.22959
[Indexed for MEDLINE]
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