Imbalance of Prevalence and Specialty Care for Osteoarthritis for First Nations People in Alberta, Canada

Health and illness beliefs regarding pain and pain management of New Zealand resident Sāmoan community leaders: A qualitative interpretive study based on Pasifika paradigms

ISSUE ADDRESSED

Ethnic disparities in chronic pain exist in Aotearoa New Zealand, including a greater impact of pain, less access to chronic pain services and less benefit from treatment for Pasifika people. This study investigated Sāmoan health perceptions and beliefs in relation to pain and how it is managed.

METHODS

An interpretive descriptive study was undertaken involving interviews with nine Sāmoan key informants from Aotearoa New Zealand. Interviews explored their beliefs in relation to interpretations of pain and experiences of and preferences for pain management. Interviews were recorded and transcribed. Data were analysed using thematic analysis.

RESULTS

Four main themes were constructed from the data. Pain is interpreted holistically described the attribution of pain to many causes, without limitation to physiological explanations. Stoicism is a character virtue described the predominant belief that pain should be endured without display or complaint. Strength in connectivity described the inherent pain coping strategies that are present within Sāmoan communities. To improve healthcare is to nurture vā described the disconnect Sāmoan people feel from healthcare services and the need to foster relationships to improve health delivery.

CONCLUSIONS

Sāmoan people have beliefs and perceptions about pain and its management that extend beyond traditional Western interpretations. While pain is often endured using traditional strengths within the 'āīga (family) and community, the Sāmoan community faces challenges in receiving healthcare from mainstream pain services. SO WHAT?: Clinicians need to foster stronger relationships with Sāmoan individuals and their 'āīga and appreciate the wider psychosocial context of pain, including spirituality.

Discrepancies in ICD-9/ICD-10-based codes used to identify three common diseases in cancer patients in real-world settings and their implications for disease classification in breast cancer patients and patients without cancer: a literature review and descriptive study

Background

International Classification of Diseases, Ninth/Tenth revisions, clinical modification (ICD-9-CM, ICD-10-CM) are frequently used in the U.S. by health insurers and disease registries, and are often recorded in electronic medical records. Due to their widespread use, ICD-based codes are a valuable source of data for epidemiology studies, but there are challenges related to their accuracy and reliability. This study aims to 1) identify ICD-9/ICD-10-based codes reported in literature/web sources to identify three common diseases in elderly patients with cancer (anemia, hypertension, arthritis), 2) compare codes identified in the literature/web search to SEER-Medicare's 27 CCW Chronic Conditions Algorithm ("gold-standard") to determine their discordance, and 3) determine sensitivity of the literature/web search codes compared to the gold standard.

Methods

A literature search was performed (Embase, Medline) to find sources reporting ICD codes for at least one disease of interest. Articles were screened in two levels (title/abstract; full text). Analysis was performed in SAS Version 9.4.

Results

Of 106 references identified, 29 were included that reported 884 codes (155 anemia, 80 hypertension, 649 arthritis). Overall discordance between the gold standard and literature/web search code list was 32.9% (22.2% for ICD-9; 35.7% for ICD-10). The gold standard contained codes not found in literature/web sources, including codes for hypertensive retinopathy/encephalopathy, Page Kidney, spondylosis/spondylitis, juvenile arthritis, thalassemia, sickle cell disorder, autoimmune anemias, and erythroblastopenia. Among a cohort of non-cancer patients (N=684,376), the gold standard identified an additional 129 patients with anemia, 33,683 with arthritis, and 510 with hypertension compared to the literature/web search. Among a cohort of breast cancer patients (N=303,103), the gold standard identified an additional 59 patients with anemia, 10,993 with arthritis, and 163 with hypertension. Sensitivity of the literature/web search code list was 91.38-99.96% for non-cancer patients, and 93.01-99.96% for breast cancer patients.

Conclusion

Discrepancies in codes used to identify three common diseases resulted in variable differences in disease classification. In all cases, the gold standard captured patients missed using the literature/web search codes. Researchers should use standardized, validated coding algorithms when available to increase consistency in research and reduce risk of misclassification, which can significantly alter the findings of a study.

Unique Serum Immune Phenotypes and Stratification of Oklahoma Native American Rheumatic Disease Patients

OBJECTIVE

Native American (NA) populations have higher rates of rheumatic disease and present with overlapping disease symptoms and nontraditional serologic features, thus presenting an urgent need for better biomarkers in NA diagnostics. This study used a machine learning approach to identify immune signatures that more effectively stratify NA patients with rheumatic disease.

METHODS

Adult NA patients with autoantibody-positive (AAB+) rheumatoid arthritis (RA; n = 28), autoantibody negative (AAB-) RA (n = 18), systemic autoimmune rheumatic disease (n = 28), arthralgia/osteoarthritis (n = 28), or polyarthritis/undifferentiated connective tissue disease (n = 28), and control patients (n = 28) provided serum samples for cytokine, chemokine, and AAB assessment. Random forest clustering and soluble mediator groups were used to identify patients and control patients with similar biologic signatures. The American College of Rheumatology criteria specific for systemic disease and RA identified differences in disease manifestations across clusters.

RESULTS

Serum soluble mediators were not homogenous between different NA rheumatic disease diagnostic groups, reflecting the heterogeneity of autoimmune diseases. Clustering by serum biomarkers created 5 analogous immune phenotypes. Soluble mediators and pathways associated with chronic inflammation and involvement of the innate, B cell, T follicular helper cell, and interferon-associated pathways, along with regulatory signatures, distinguished the 5 immune signatures among patients. Select clinical features were associated with individual immune profiles. Patients with low inflammatory and higher regulatory signatures were more likely to have few clinical manifestations, whereas those with T cell pathway involvement had more arthritis.

CONCLUSION

Serum protein signatures distinguished NA patients with rheumatic disease into distinct immune subsets. Following these immune profiles over time may assist with earlier diagnoses and help guide more personalized treatment approaches.

Total joint replacement may be a valuable treatment for Aboriginal and Torres Strait Islander people with osteoarthritis, but uptake is low

BACKGROUND

Despite bearing a higher burden of osteoarthritis, little research has examined disparities in the access, utilisation and surgical outcomes associated with total joint replacement (TJR) among Aboriginal and Torres Strait Islander people.

METHODS

We conducted a retrospective cohort study to compare the sociodemographic and clinical characteristics of all Aboriginal and Torres Strait Islander and non-Aboriginal patients who underwent primary hip and knee replacement at St Vincent's Hospital Melbourne between 1996 and 2019.

RESULTS

A total of 10 277 primary total knee or hip replacements were performed in the 1996-2019 study period, of which 49 (0.5%) patients identified as either Aboriginal and/or Torres Strait Islander. Aboriginal and Torres Strait Islander patients were younger (61.7 ± 11.8 vs. 68.3 ± 10.3 years; P < 0.001), recorded higher Body Mass Index scores (median (IQR), 36.0 (29.5-41.4) vs. 30.8 (27.0-35.3); P < 0.001) and were more likely to experience multiple co-morbidities at the time of surgery. Despite these findings, Aboriginal and Torres Strait Islander patients did not experience higher complication rates and experienced comparable, clinically meaningful quality of life improvements 12-months post-surgery.

CONCLUSIONS

TJR appears to be a valuable treatment option for Aboriginal and Torres Strait Islander people with end-stage osteoarthritis. Our study was limited by the small number of procedures conducted in patients who identify as Aboriginal and Torres Strait Islander. Further research is needed to understand why uptake of TJR by Aboriginal and Torres Strait Islander people is low.

Rural-Urban Differences in Non-Local Primary Care Utilization among People with Osteoarthritis: The Role of Area-Level Factors

The utilization of non-local primary care physicians (PCP) is a key primary care indicator identified by Alberta Health to support evidence-based healthcare planning. This study aims to identify area-level factors that are significantly associated with non-local PCP utilization and to examine if these associations vary between rural and urban areas. We examined rural-urban differences in the associations between non-local PCP utilization and area-level factors using multivariate linear regression and geographically weighted regression (GWR) models. Global Moran's I and Gi* hot spot analyses were applied to identify spatial autocorrelation and hot spots/cold spots of non-local PCP utilization. We observed significant rural-urban differences in the non-local PCP utilization. Both GWR and multivariate linear regression model identified two significant factors (median travel time and percentage of low-income families) with non-local PCP utilization in both rural and urban areas. Discontinuity of care was significantly associated with non-local PCP in the southwest, while the percentage of people having university degree was significant in the north of Alberta. This research will help identify gaps in the utilization of local primary care and provide evidence for health care planning by targeting policies at associated factors to reduce gaps in OA primary care provision.

Hospitalizations Associated With Rheumatic Disease in Alaska, 2015-2018

Objective

Few studies have evaluated hospitalizations associated with rheumatic disease in Indigenous North American populations. The objective of this study was to determine the characteristics of people hospitalized with rheumatic disease in Alaska, including a comparison of hospitalizations for Alaska Native/American Indian (AN/AI) people in Alaska compared with those of other races.

Methods

We used statewide hospital discharge data from the Alaska Health Facilities Data Reporting Program from 2015 to 2018 for this study. Cases were ascertained based on discharge diagnosis (any listed) of a defined set of rheumatic diseases. We determined characteristics associated with rheumatic disease hospitalizations, including age, gender, and race. Using multivariate modeling, we determined risk factors for hospitalization overall, as well as for specific rheumatic diseases. We compared characteristics of hospital encounters for people with or without rheumatic diseases and by race.

Results

We identified 15975 people ever hospitalized with rheumatic disease in the study period and 87138 controls hospitalized but without any rheumatic disease diagnosis. Cases were older than controls and more likely to be female. The three most common types of rheumatic disease associated with hospitalization were osteoarthritis, gout, and rheumatoid arthritis. Compared with other races, AN/AI people were more likely to be hospitalized with rheumatic disease, and this association was true for all specific diseases other than gout.

Conclusion

Hospitalizations associated with rheumatic disease are common in Alaska, with an increased likelihood of hospitalization for AN/AI people. This adds to the literature on health disparities in Indigenous North American populations.

Issues postopératoires chez les Autochtones au Canada: revue systématique

Contexte:

Il existe d’importantes iniquités en matière de santé chez les populations autochtones au Canada. La faible densité de la population canadienne et les populations en région éloignée posent un problème particulier à l’accès et à l’utilisation des soins chirurgicaux. Aucune synthèse des données sur les issues chirurgicales chez les Autochtones au Canada n’avait été publiée jusqu’à maintenant.

Méthodes:

Nous avons interrogé 4 bases de données pour recenser les études comparant les issues chirurgicales et les taux d’utilisation chez les adultes des Premières Nations, inuits et métis et chez les adultes non autochtones au Canada. Des évaluateurs indépendants ont réalisé toutes les étapes en parallèle. L’issue primaire était la mortalité; les issues secondaires comprenaient le taux d’utilisation des chirurgies, les complications et la durée du séjour à l’hôpital. Nous avons effectué une méta-analyse pour l’issue primaire à l’aide d’un modèle à effets aléatoires. Nous avons évalué les risques de biais à l’aide de l’outil ROBINS-I.

Résultats:

Vingt-huit études ont été analysées, pour un total de 1 976 258 participants (10,2 % d’Autochtones). Aucune étude ne portait précisément sur les populations inuites et métisses. Quatre études portant sur 7 cohortes ont fourni des données corrigées sur la mortalité pour 7135 participants (5,2 % d’Autochtones); les Autochtones présentaient un risque de décès après une intervention chirurgicale 30 % plus élevé que les patients non autochtones (rapport de risque combiné 1,30; IC à 95 % 1,09–1,54; I² = 81 %). Les complications étaient aussi plus fréquentes chez le premier groupe, notamment les infections (RC corrigé 1,63; IC à 95 % 1,13–2,34) et les pneumonies (RC 2,24; IC à 95 % 1,58–3,19). Les taux de différentes interventions chirurgicales étaient plus faibles, notamment pour les transplantations rénales, les arthroplasties, les chirurgies cardiaques et les accouchements par césarienne.

Interprétation:

Les données disponibles sur les issues postopératoires et le taux d’utilisation de la chirurgie chez les Autochtones au Canada sont limitées et de faible qualité. Elles suggèrent que les Autochtones ont de plus hauts taux de décès et d’issues négatives postchirurgicales et qu’ils font face à des obstacles dans l’accès aux interventions chirurgicales. Ces conclusions indiquent qu’il y a un besoin de réévaluer en profondeur les soins chirurgicaux prodigués aux Autochtones au Canada pour leur assurer un accès équitable et améliorer les issues.

Numéro d’enregistrement du protocole:

PROSPERO-CRD42018098757.

Experts prioritize osteoarthritis non-surgical interventions from Cochrane systematic reviews for translation into "Evidence4Equity" summaries

OBJECTIVE

Osteoarthritis generates substantial health and socioeconomic burden, which is particularly marked in marginalized groups. It is imperative that practitioners have ready access to summaries of evidence-based interventions for osteoarthritis that incorporate equity considerations. Summaries of systematic reviews can provide this. The present study surveyed experts to prioritize a selection ofinterventions, from which equity focused summaries will be generated. Specifically, the prioritized interventions will be developed into Cochrane Evidence4Equity (E4E) summaries.

METHODS

Twenty-seven systematic reviews of OA interventions were found. From these, twenty-nine non-surgical treatments for osteoarthritis were identified, based on statistically significant findings for desired outcome variables or adverse events. Key findings from these studies were summarised and provided to 9 experts in the field of osteoarthritis.. Expert participants were asked to rate interventions based on feasibility, health system effects, universality, impact on inequities, and priority for translation into equity based E4E summaries. Expert participants were also encouraged to make comments to provide context for each rating. Free text responses were coded inductively and grouped into subthemes and themes.

RESULTS

Expert participants rated the intervention home land-based exercise for knee OA highest for priority for translation into an E4E summaries, followed by the interventions individual land-based exercise for knee OA, class land-based exercise for knee OA, exercise for hand OA and land-based exercise for hip OA. Upon qualitative analysis of the expert participants' comments, fifteen subthemes were identified and grouped into three overall themes: (1) this intervention or an aspect of this intervention is unnecessary or unsafe; (2) this intervention or an aspect of this intervention may increase health inequities; and (3) experts noted difficulties completing rating exercise.

CONCLUSION

The list of priority interventions and corresponding expert commentary generated information that will be used to direct and support knowledge translation efforts.

Arthritis liaison: a First Nations community-based patient care facilitator

INTRODUCTION

Arthritis is a leading cause of disability in First Nations communities and is often accompanied by other chronic diseases. Existing care models prioritize accessibility to specialty care for treatment, whereas patient-centred approaches support broader health goals.

METHODS

A patient care facilitator model of care, termed "arthritis liaison," was developed with the community to support culturally relevant patient-centred care plans. Following a one-year-long intervention, we report on the feasibility and acceptability of this care model from the perspectives of patients and health care providers.

RESULTS

The arthritis liaison served as a bridge between the clinicians and patients, and fostered continuity, helping patients receive coordinated care within the community.

Postoperative outcomes for Indigenous Peoples in Canada: a systematic review

Background:

Substantial health inequities exist for Indigenous Peoples in Canada. The remote and distributed population of Canada presents unique challenges for access to and use of surgery. To date, the surgical outcome data for Indigenous Peoples in Canada have not been synthesized.

Methods:

We searched 4 databases to identify studies comparing surgical outcomes and utilization rates of adults of First Nations, Inuit or Métis identity with non-Indigenous people in Canada. Independent reviewers completed all stages in duplicate. Our primary outcome was mortality; secondary outcomes included utilization rates of surgical procedures, complications and hospital length of stay. We performed meta-analysis of the primary outcome using random effects models. We assessed risk of bias using the ROBINS-I tool.

Results:

Twenty-eight studies were reviewed involving 1 976 258 participants (10.2% Indigenous). No studies specifically addressed Inuit or Métis populations. Four studies, including 7 cohorts, contributed adjusted mortality data for 7135 participants (5.2% Indigenous); Indigenous Peoples had a 30% higher rate of death after surgery than non-Indigenous patients (pooled hazard ratio 1.30, 95% CI 1.09–1.54; I² = 81%). Complications were also higher for Indigenous Peoples, including infectious complications (adjusted OR 1.63, 95% CI 1.13–2.34) and pneumonia (OR 2.24, 95% CI 1.58–3.19). Rates of various surgical procedures were lower, including rates of renal transplant, joint replacement, cardiac surgery and cesarean delivery.

Interpretation:

The currently available data on postoperative outcomes and surgery utilization rates for Indigenous Peoples in Canada are limited and of poor quality. Available data suggest that Indigenous Peoples have higher rates of death and adverse events after surgery, while also encountering barriers accessing surgical procedures. These findings suggest a need for substantial re-evaluation of surgical care for Indigenous Peoples in Canada to ensure equitable access and to improve outcomes.

Protocol registration:

PROSPERO-CRD42018098757

Geospatial patterns of comorbidity prevalence among people with osteoarthritis in Alberta Canada

BACKGROUND

Knowledge of geospatial pattern in comorbidities prevalence is critical to an understanding of the local health needs among people with osteoarthritis (OA). It provides valuable information for targeting optimal OA treatment and management at the local level. However, there is, at present, limited evidence about the geospatial pattern of comorbidity prevalence in Alberta, Canada.

METHODS

Five administrative health datasets were linked to identify OA cases and comorbidities using validated case definitions. We explored the geospatial pattern in comorbidity prevalence at two standard geographic areas levels defined by the Alberta Health Services: descriptive analysis at rural-urban continuum level; spatial analysis (global Moran's I, hot spot analysis, cluster and outlier analysis) at the local geographic area (LGA) level. We compared area-level indicators in comorbidities hotspots to those in the rest of Alberta (non-hotspots).

RESULTS

Among 359,638 OA cases in 2013, approximately 60% of people resided in Metro and Urban areas, compared to 2% in Rural Remote areas. All comorbidity groups exhibited statistically significant spatial autocorrelation (hypertension: Moran's I index 0.24, z score 4.61). Comorbidity hotspots, except depression, were located primarily in Rural and Rural Remote areas. Depression was more prevalent in Metro (Edmonton-Abbottsfield: 194 cases per 1000 population, 95%CI 192-195) and Urban LGAs (Lethbridge-North: 169, 95%CI 168-171) compared to Rural areas (Fox Creek: 65, 95%CI 63-68). Comorbidities hotspots included a higher percentage of First Nations or Inuit people. People with OA living in hotspots had lower socioeconomic status and less access to care compared to non-hotspots.

CONCLUSIONS

The findings highlight notable rural-urban disparities in comorbidities prevalence among people with OA in Alberta, Canada. Our study provides valuable evidence for policy and decision makers to design programs that ensure patients with OA receive optimal health management tailored to their local needs and a reduction in current OA health disparities.

Understanding the Disproportionate Burden of Rheumatic Diseases in Indigenous North American Populations

Studies have described a high incidence and prevalence of several rheumatic diseases in indigenous North American populations. Conditions studied most frequently with consistently high burden of disease include rheumatoid arthritis, spondyloarthritis, and systemic lupus erythematosus. Crystal-induced arthritis has been reported to have a lower prevalence than expected. Information about genetic and environmental risk factors is available for some of these conditions. An awareness of the epidemiology of rheumatic diseases in indigenous North American populations is important for clinicians involved in caring for patients in these populations as well as for planning health service delivery in these communities.

Opportunities and challenges for physical rehabilitation with indigenous populations

Indigenous peoples in colonised countries internationally experience a disproportionately high burden of disease and disability. The impact of many of these conditions, such as musculoskeletal pain, can be ameliorated by participating in physical rehabilitation. However, access by Indigenous peoples to physical rehabilitation is low. Overcoming barriers for Indigenous peoples to access high-quality, effective, culturally secure physical rehabilitation should be a priority. Physical rehabilitation outcomes for Indigenous peoples can be enhanced by addressing health system, health service, and individual clinician-level considerations. System-level changes include a greater commitment to cultural security, improving the funding of physical rehabilitation to Indigenous communities, building the Indigenous physical rehabilitation workforce, and developing and using Indigenous-identified indicators in quality improvement. At the health service level, physical rehabilitation should be based within Indigenous health services, Indigenous people should be employed as physical rehabilitation professionals or in allied roles, and cultural training and support provided to the existing physical rehabilitation workforce. For clinicians, a focus on cultural development and the quality of communication is needed. Indigenous ill-health is complex and includes societal and social influences. These recommendations offer practical guidance toward fair, reasonable, and equitable physical rehabilitation outcomes for Indigenous peoples.

Tackling the Burden of Osteoarthritis as a Health Care Opportunity in Indigenous Communities-A Call to Action

Osteoarthritis is a highly prevalent and disabling disease, causing a significant individual and socioeconomic burden worldwide. Until now, there has been a dearth of research exploring the impact of osteoarthritis in global Indigenous communities. Osteoarthritis has a similar risk factor profile to many chronic diseases that disproportionately affect Indigenous peoples. In this editorial, we argue that osteoarthritis and associated mobility restrictions play a central role in the chronic disease profile of Indigenous peoples. We present a call to action for clinicians and health care providers, researchers and policymakers to begin to recognise the interrelated nature of osteoarthritis and chronic disease. We have an opportunity to change the way we do business, to improve access to culturally secure osteoarthritis care and the health and wellbeing of Indigenous communities.

Unmet Needs of Aboriginal Australians With Musculoskeletal Pain: A Mixed-Method Systematic Review

OBJECTIVE

Musculoskeletal pain (MSP) conditions are the biggest cause of disability, and internationally, indigenous peoples experience a higher burden. There are conflicting reports about Aboriginal Australians and MSP. We conducted a systematic review to describe the prevalence, associated factors, impacts, care access, health care experiences, and factors associated with MSP among Aboriginal Australians.

METHODS

We used a systematic search of quantitative and qualitative scientific and grey literature (PROSPERO# CRD42016038342). Articles were appraised using the Mixed Methods Appraisal Tool. Due to study heterogeneity, a narrative synthesis was conducted.

RESULTS

Of 536 articles identified, 18 were included (14 quantitative, 4 qualitative), of high (n = 11), medium (n = 2), and low (n = 5) quality. Prevalence of MSP in Aboriginal populations was similar to or slightly higher than the non-Aboriginal population (prevalence rate ratio 1.1 for back pain, 1.2-1.5 for osteoarthritis [OA], and 1.0-2.0 for rheumatoid arthritis). Aboriginal people accessed primary care for knee or hip OA at approximately half the rate of non-Aboriginal people, and were less than half as likely to have knee or hip replacement surgery. Communication difficulties with health practitioners were the main reason why Aboriginal people with MSP choose not to access care. No articles reported interventions.

CONCLUSION

Findings provide preliminary evidence of an increased MSP burden among Aboriginal Australians, and particularly for OA, a mismatch between the disease burden and access to health care. To increase accessibility, health services should initially focus on improving Aboriginal patients' experiences of care, in particular by improving patient-practitioner communication. Implications for care and research are outlined.

Characterization of indigenous community engagement in arthritis studies conducted in Canada, United States of America, Australia and New Zealand

BACKGROUND

Research adhering to community engagement processes leads to improved outcomes. The level of Indigenous communities' engagement in rheumatology research is unknown.

OBJECTIVE

To characterize the frequency and level of community engagement reporting in arthritis studies conducted in Australia (AUS), Canada (CAN), New Zealand (NZ) and the United States of America (USA).

METHODS

Studies identified through systematic reviews on topics of arthritis epidemiology, disease phenotypes and outcomes, health service utilization and mortality in Indigenous populations of AUS, CAN, NZ and USA, were evaluated for their descriptions of community engagement. The level of community engagement during inception, data collection and results interpretation/dissemination stages of research was evaluated using a custom-made instrument, which ranked studies along the community engagement spectrum (i.e. inform-consult-involve-collaborate-empower). Meaningful community engagement was defined as involving, collaborating or empowering communities. Descriptive analyses for community engagement were performed and secondary non-parametric inferential analyses were conducted to evaluate the possible associations between year of publication, origin of the research idea, publication type and region of study; and meaningful community engagement.

RESULTS

Only 34% (n = 69) of the 205 studies identified reported community engagement at ≥ 1 stage of research. Nearly all studies that engaged communities (99% (n = 68)) did so during data collection, while only 10% (n = 7) did so at the inception of research and 16% (n = 11) described community engagement at the results' interpretation/dissemination stage. Most studies provided community engagement descriptions that were assessed to be at the lower end of the spectrum. At the inception of research stage, 3 studies reported consulting communities, while 42 studies reported community consultation at data collection stage and 4 studies reported informing or consulting communities at the interpretation/dissemination of results stage. Only 4 studies described meaningful community engagement through all stages of the research. Inferential statistics identified that studies with research ideas that originated from the Indigenous communities involved were significantly more associated with achieving meaningful community engagement.

CONCLUSIONS

The reporting of Indigenous community engagement in published arthritis studies is limited in frequency and is most frequently described at the lower end of the community engagement spectrum. Processes that support meaningful community engagement are to be promoted.

Review of chronic non-cancer pain research among Aboriginal people in Canada

Purpose

Aboriginal people in Canada are disproportionately affected by chronic illnesses, compared to non-Aboriginal Canadians. The purpose of this review was to determine whether differences exist between the two groups with respect to chronic non-cancer pain (CNCP) in order to better inform clinical practice and to identify research gaps.

Data sources

Four electronic databases were searched for the period of 1990-2015.

Study selection

Only English and French language original studies that examined CNCP prevalence, assessment tools and beliefs among Aboriginal people in Canada were considered.

Data extraction

Data extracted included Aboriginal group, geographic location, study setting and pain definition (for prevalence studies only).

Results of data synthesis

A total of 11 studies matched the selection criteria: 10 reported estimates of chronic pain prevalence among Aboriginal people in Canada, 1 was about a culturally adapted pain assessment tool, and no study was found about CNCP beliefs within Aboriginal people.

Conclusion

CNCP among Aboriginal people is still a largely unexplored research field. The limited evidence available so far does not allow us to conclude that CNCP affects a higher proportion of Aboriginal than non-Aboriginal people in Canada. However, arthritis, a specific condition associated with chronic pain, is more prevalent in Aboriginal than non-Aboriginal people. Additional research is needed on other CNCP types and conditions. Furthermore, pain assessment tools are not culturally adapted and clinicians should inquire more about the beliefs of Aboriginal patients to make them feel safer and to better target interventions.

Feasibility of Measurement and Adherence to System Performance Measures for Rheumatoid Arthritis in 5 Models of Care

OBJECTIVE

To test the feasibility of reporting on 4 national performance measures for patients with rheumatoid arthritis (RA) in 5 different models of care.

METHODS

The following performance measures were evaluated in 5 models of care: waiting time (WT) to rheumatologist consultation, percentage of patients seen in yearly followup (FU), percentage taking disease-modifying antirheumatic drugs (DMARD), and time to starting DMARD. All models aimed to improve early access and care for patients with RA.

RESULTS

A number of feasibility issues were encountered in performance measure evaluation because of differences in site data collection and/or the duration of the model of care. For example, while 4/5 programs maintained clinical or research databases, chart reviews were still required to report on WT. Median WT for care in 2015 varied by site between 21 and 75 days. Yearly FU rates could only be calculated in 2 sites (combined owing to small numbers) and varied between 83% and 100%. Percentage of patients taking a DMARD and time to DMARD could be calculated in 3 models, and rates of DMARD use were between 90% and 100%, with median time to DMARD of 0 days in each.

CONCLUSION

Our review has shown that even in models of care designed to improve access to care and early treatment, data to document improvements are often lacking. Where data were available for measuring, deficits in WT performance were noted for some centers. Our results highlight a need to improve reporting processes to drive quality improvement.

Systematic review of rheumatic disease phenotypes and outcomes in the Indigenous populations of Canada, the USA, Australia and New Zealand

We performed a systematic review designed to characterize clinical phenotypes and outcomes in Indigenous populations with rheumatic disease to enhance the understanding of how rheumatic disease presents in Indigenous populations and allow for better projection of the healthcare needs of the communities affected. A systematic search was performed in medical (Medline, EMBASE, CINAHL), Indigenous and conference abstract databases (to June 2015). Search terms for Indigenous populations were combined with terms for inflammatory arthritis conditions, connective tissue disorders, crystal arthritis and osteoarthritis. Studies were included if they reported on disease features, disease activity measures, or patient-reported outcomes in Canadian, American, Australian or New Zealand Indigenous populations. Data were extracted in duplicate, and a narrative summary was prepared. A total of 5269 titles and abstracts were reviewed, of which 504 underwent full-text review and 85 met inclusion criteria. Nearly all the studies described outcomes in the North American populations (n = 77), with only four studies from Australia and four studies from New Zealand. The majority of studies were in rheumatoid arthritis (n = 31) and systemic lupus erythematosus (n = 19). Indigenous patients with rheumatoid arthritis had higher disease activity and reported more significant impact on patient-reported outcomes and quality of life than non-Indigenous patients. Spondyloarthropathy features were described in North American populations, with most patients having advanced manifestations. In systemic lupus erythematosus, nephritis was more frequent in Indigenous populations. Gout and osteoarthritis were more severe in New Zealand Maori populations. The existing literature supports differences in disease phenotype and severity in Indigenous populations of Canada, America, Australia and New Zealand. We encourage investigators in this area of research to undertake contemporary studies that disentangle differences between phenotype and severity that are biologic in etiology or merely reflecting differences in access to care and that provide a longitudinal assessment of outcomes in more diverse populations.

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

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.

Healthcare utilization for arthritis by indigenous populations of Australia, Canada, New Zealand, and the United States: A systematic review☆

PURPOSE

Indigenous populations of Australia, Canada, New Zealand, and the United States of America (USA) experience a higher prevalence of arthritis conditions. Differences in clinical outcomes and mortality may reflect healthcare service use inequities. The objective of this study was to summarize healthcare service use patterns described in the existing literature in order to identify gaps and inform strategies to limit the pronounced negative impact of arthritis on Indigenous populations.

METHODS

Medline, EMBASE, CINAHL, and Indigenous-specific electronic databases (to June 2015) were used to identify cohort, case-control and cross-sectional studies describing healthcare service use by Indigenous populations with specified inflammatory arthritis, osteoarthritis, or rheumatic disease conditions. We extracted information on the study setting and methodology, primary outcome and assessed study quality, and risk of bias.

RESULTS

In total, 19 studies were identified describing three types of healthcare service use: physician visits, hospitalizations, and surgeries. In Canada and New Zealand, Indigenous populations had 36-51% fewer visits to specialists than the non-Indigenous population. Indigenous populations in Canada, New Zealand, and the USA had 37-300% more hospitalizations due to arthritis complications than the non-Indigenous population. Indigenous populations in Australia, Canada, and New Zealand had 27-85% fewer arthroplasties for osteoarthritis than the non-Indigenous population.

CONCLUSIONS

Indigenous populations had higher hospitalization rates but lower use of specialized services for arthritis conditions. Strategies to improve access to specialized arthritis services might reduce health outcome inequities.