The Impact of Chronic Disease on the Corrected QT (QTc) Value in Women in a British Columbia First Nations Population.

BACKGROUND: Indigenous women have higher rates of chronic disease than Indigenous men and non-Indigenous women. Long QT syndrome (LQTS) can be inherited or acquired; the latter may occur with chronic disease. A prolonged corrected QT value (QTc) is an independent risk factor for ventricular arrhythmias and sudden death, but few studies have quantified the impact of chronic disease on the QTc. We assessed the association between chronic disease and QTc prolongation in a population of First Nations women previously ascertained to study a high rate of inherited LQTS due to a unique genetic (founder) variant in their community. METHODS: This substudy focusing on women expands on the original research where patients with clinical features of LQTS and their relatives were assessed for genetic variants discovered to affect the QTc. Medical records were retrospectively reviewed and chronic diseases documented. Using multivariate linear regression, adjusting for the effect of genetic variants, age, and QTc-prolonging medications, we evaluated the association between chronic disease and the QTc. RESULTS: In total, 275 women were included. After adjustments, a prolonged QTc was associated with coronary artery disease (26.5 ms, 95% confidence interval [CI] 9.0-44.1 ms; P = 0.003), conduction system disease (26.8 ms, 95% CI 2.2-51.4 ms; P = 0.033), rheumatoid arthritis (28.9 ms, 95% CI 12.7-45.1 ms; P = 0.001), and type 2 diabetes mellitus (17.9 ms, 95% CI 3.6-32.3 ms; P = 0.015). CONCLUSIONS: This quantification of the association between chronic disease and QTc prolongation in an Indigenous cohort provides insight into the nongenetic determinants of QTc prolongation. Corroboration in other populations will provide evidence for generalisability of these results.

Building More Bridges: Indigenous leadership in a study assessing the impact of distance to care on markers of quality HIV care in Saskatchewan.

Introduction: Individuals in rural and remote areas face barriers to chronic disease care, including HIV. Saskatchewan has the highest HIV incidence among Canadian provinces and 35.6% of the population lives outside of an urban centre. In this study, we explored the relationship between distance to HIV care and markers of quality HIV care in Saskatchewan as part of the Canadian Observational HIV Cohort (CANOC). Methods: We used a Two-Eyed Seeing approach and honoured the experience of Indigenous team members living with HIV. The Positive Partnership Score (PPS) was the primary outcome (including frequency of viral load and CD4 measurements, baseline CD4 count, antiretroviral medication regimen and virologic suppression). Multivariable linear regression analysis was performed with distance to care defined in two ways: (1) categorical based on distance from home to HIV specialist care and (2) road distance from CANOC enrolment site. Results: Two hundred and seventy-six individuals were included in the analyses. Living ≤25 km from a visiting HIV specialist (where no HIV specialist lives in the community permanently) and living >100 km from the closest HIV specialist (either visiting or permanent) were both associated with lower PPS compared to living ≤25 km from where an HIV specialist practises permanently. Each 10 km further from the CANOC enrolment site was associated with a 0.01-point reduction (95% CI-0.02, 0, P = 0.024) in PPS. Conclusion: Through a strength-based approach that was grounded in culture, connection, land and Ceremony, we demonstrated how Indigenous people with HIV can play a key role in research. Distance from care was associated with a poorer quality of HIV care in Saskatchewan highlighting the need for better rural HIV care.

Résumé Introduction: Les personnes vivant dans les régions rurales et éloignées sont confrontées à des obstacles aux soins des maladies chroniques, y compris le VIH. La Saskatchewan a l'incidence du VIH la plus élevée parmi les provinces canadiennes et 35,6% de la population vit en dehors d'un centre urbain. Dans cette étude, nous avons exploré le lien entre la distance aux soins du VIH et les marqueurs de la qualité des soins du VIH en Saskatchewan dans le cadre de la Canadian Observational HIV Cohort (CANOC). Méthodes: Nous avons utilisé l'approche de "regard des deux yeux" et honoré l'expérience des membres autochtones de l'équipe vivant avec le VIH. Le score de partenariat positif (SPP/PPS) était le résultat primaire (incluant la fréquence des mesures de la charge virale et des CD4, le nombre de CD4 de base, le régime de médicaments antirétroviraux et la suppression virologique). Une analyse de régression linéaire multivariable a été effectuée avec la distance aux soins définie de deux manières: 1) catégorique, basée sur la distance entre le domicile et les soins d'un spécialiste du VIH, et 2) distance routière du site d'inscription au CANOC. Résultats: 276 individus ont été inclus dans les analyses. Le fait de vivre à ≤25 km d'un spécialiste du VIH en visite (lorsqu'aucun spécialiste du VIH ne vit en permanence dans la collectivité) et le fait de vivre à >100 km du spécialiste du VIH le plus proche (en visite ou en permanence) étaient tous deux associés à un SPP plus faible par rapport au fait de vivre à ≤25 km du lieu où un spécialiste du VIH exerce en permanence. Chaque tranche de 10 km plus éloignée du site d'inscription de CANOC était associée à une réduction de 0,01 point (IC 95%:-0,02, 0, P = 0,024) du PPS. Conclusion: Grâce à une approche fondée sur les forces et ancrée dans la culture, les liens, la terre et les cérémonies, nous avons démontré comment les autochtones atteints du VIH peuvent jouer un rôle clé dans la recherche. La distance par rapport aux soins était associée à une moins bonne qualité des soins du VIH en Saskatchewan, ce qui souligne la nécessité d'améliorer les soins du VIH en milieu rural. Mots-clés: VIH, Saskatchewan, leadership autochtone, distance par rapport aux soins.

Indigenizing our research: indigenous community leadership in HIV epidemiology research.

The use of data intensive health research has allowed for greater understandings of population health. When conducting data intensive health research, engaging and involving the community is essential for conducting meaningful research that is responsive to the public's needs. Particularly, when engaging Indigenous communities in research, there is a need to understand historical and ongoing impacts of colonialism and recognize the strengths in Indigenous Peoples' knowledges and experiences while supporting Indigenous leadership and self-determination in research. This article describes the approach our research team/organization used to engage and involve Indigenous people living with HIV in three research projects using large, linked datasets and looking at HIV outcomes of Indigenous populations in Canada. The foundation of these projects was simultaneously: 1) supporting Indigenous people living with HIV to be involved as research team members, 2) developing research questions to answer with available datasets, and 3) integrating Indigenous and Western ways of knowing. We have identified important considerations and suggestions for engaging and involving Indigenous communities and individuals in the generation of research ideas and analysis of linked data using community-based participatory research approaches through our work. These include engaging stakeholders at the start of the project and involving them throughout the research process, honouring Indigenous ways of knowing, the land, and local protocols and traditions, prioritizing Indigenous voices, promoting co-learning and building capacity, and focusing on developing longitudinal relationships. We describe keys to success and learnings that emerged. Importantly, the methodology practiced and presented in this manuscript is not a qualitative study design whereby research subjects are surveyed about their experiences or beliefs. Rather, the study approach described herein is about engaging people with living experience to co-lead as researchers. Our approach supported Indigenous people to share research that addresses their research priorities and responds to issues relevant to Indigenous Peoples and communities.

Development of the Canadian Women-Centred HIV Care Model Using the Knowledge-to-Action Framework.

In Canada, women make up 25% of the prevalent HIV cases and represent an important population of those living with HIV, as a high proportion are racialized and systemically marginalized; furthermore, many have unmet healthcare needs. Using the knowledge-to-action framework as an implementation science methodology, we developed the "Women-Centred HIV Care" (WCHC) Model to address the needs of women living with HIV. The WCHC Model is depicted in the shape of a house with trauma- and violence-aware care as the "foundation". Person-centred care with attention with attention to social determinants of health and family make up the "first" floor. Women's health (including sexual and reproductive health and rights) and mental and addiction health care are integrated with HIV care, forming the "second" floor. Peer support, leadership, and capacity building make up the "roof". To address the priorities of women living with HIV in all their diversity and across their life course, the WCHC Model should be flexible in its delivery (e.g., single provider, interdisciplinary clinic or multiple providers) and implementation settings (e.g., urban, rural).

Clinically significant substance use and residential stability among homeless or vulnerably housed persons in Canada: a longitudinal cohort study.

BACKGROUND: We examined clinically significant substance use among homeless or vulnerably housed persons in three Canadian cities and its association with residential stability over time using data from the Health and Housing in Transition study. METHODS: In 2009, 1190 homeless or vulnerably housed individuals were recruited in three Canadian cities and followed for 4 years. We collected information on housing and incarceration history, drug and alcohol use, having a primary care provider at baseline and annually for 4 years. Participants who screened positive for substance use at baseline were included in the analyses. We used a generalized logistic mixed effect regression model to examine the association between clinically significant substance use and residential stability, adjusting for confounders. RESULTS: Initially, 437 participants met the criteria for clinically significant substance use. The proportion of clinically significant substance use declined, while the proportion of participants who achieved residential stability increased over time. Clinically significant substance use was negatively associated with achieving residential stability over the 4-year period (AOR 0.7; 95% CI 0.57, 0.86). CONCLUSIONS: In this cohort of homeless or vulnerably housed individuals, clinically significant substance use was negatively associated with achieving residential stability over time, highlighting the need to better address substance use in this population.

Influence of the definition of rurality on geographic differences in HIV outcomes in British Columbia: a retrospective cohort analysis.

BACKGROUND: Improving rural health is often identified as a priority area for research and policy in Canada. We examined how findings on HIV outcomes (virologic suppression) can vary depending on the definition of rurality used. METHODS: We performed retrospective cohort analyses using the Comparative Outcomes and Service Utilization Trends study population-based cohort of adults (age ≥ 19 yr) living with HIV in British Columbia between Apr. 1, 2012, and Mar. 31, 2013. We performed univariate logistic regression analyses using the following geographic variables to predict HIV virologic suppression: rurality defined by forward sortation area, by Statistical Area Classification and by health authority. We mapped suppression using geographic information systems. RESULTS: Virologic suppression was observed in 5605 (65.2%) of 8598 participants. In univariate analysis, rurality defined by Statistical Area Classification (odds ratio [OR] 0.73, 95% confidence interval [CI] 0.65-0.82), but not by forward sortation area, was associated with lower odds of suppression. When we examined suppression by health authority, Northern Health had the lowest odds of suppression (OR 0.46, 95% CI 0.36-0.58 compared to Vancouver Coastal Health). Geographic information systems mapping showed poorer suppression in northern areas. INTERPRETATION: Health outcome findings can vary depending on the definition of the geographic variable. When including geographic variables, researchers should carefully consider variable definitions and whether other classification systems, such as north-south, are more appropriate than rurality for their analysis.

Building Bridges: Describing a Process for Indigenous Engagement in Epidemiology.

BACKGROUND: Processes for epidemiology embedded with Indigenous methodology are needed. Building Bridges was developed to engage Indigenous peoples in epidemiology to address health issues relevant to them. OBJECTIVES: We describe our process for meaningfully engaging Indigenous leaders and peoples living with human immunodeficiency virus (HIV) in epidemiology research. METHODS: As a community-based research (CBR) project, Indigenous methodologies and leadership ensured the quality and relevance of findings. Study phases included 1) advisory board formation, 2) recruitment, 3) research question identification, 4) data analysis from the Canadian HIV Observational Cohort (CANOC) collaboration, 5) data interpretation and contextualization, and 6) knowledge translation and exchange. LESSONS LEARNED: Support and guidance from Indigenous team members, Spiritual Leaders and Elders along with meaningful relationships with allied academic researchers were pivotal. Expertise and lived experiences in Indigenous culture, HIV, epidemiology and services enabled multidirectional learning. CONCLUSIONS: Building Bridges' success hinged on ongoing co-learning and engagement of Indigenous peoples, service providers and researchers.

An allied research paradigm for epidemiology research with Indigenous peoples.

BACKGROUND: There is no shortage of epidemiology research describing the ill health of Indigenous peoples in Canada and globally and many of these studies have had negative repercussions on Indigenous communities. However, epidemiology can also be a helpful tool for supporting the health and health services of communities. This paper challenges the reader to consider the harms of epidemiology which essentialize Indigenous communities as sick and in need of help. It then discusses, from the perspective of a settler physician and clinical epidemiology student, how we may be able reconcile the field of epidemiology research with the needs of Indigenous communities. In doing so, it describes an allied research paradigm for epidemiology. RESULTS: Although qualitative research has been substantially informed by critical feminist theories, uptake in quantitative research has been sparser. It is even more rare for Indigenous methodologies to be used to inform quantitative research. This paper is written from a personal perspective, reflecting on the author's prior experiences as well as existing literature on critical feminist theory and Indigenous methodologies, to describe an allied research paradigm. This allied research paradigm follows an ontology that explores the subjectivity within epidemiology and the influence of the positionality of the researcher. It follows an epistemology that understands that knowledge can be generated through many ways including, but not limited to statistical analyses. It follows an axiology that research aims to affect social change and improve the lives of the communities participating in the research. It follows a methodology that is participatory and empowers community partners to meaningfully contribute to statistical research. This allied research paradigm, which makes no claims to universality, describes several important principles: reconciliation, relationships, perspective, positionality, self-determination and accountability. CONCLUSION: Researchers who wish to engage in research in allyship with Indigenous communities must understand the colonial history embedded in health research, commit to a process that honours meaningful relationships with community partners, and carefully consider the implications of their work.

A settler physician perspective on Indigenous health, truth, and reconciliation.

This brief report presents one settler physician's perspectives on our responsibility to engage in reconciliation and decolonize our healthcare institutions. It draws from existing literature to identify key actions for reconciliation in health care. These include i) engaging Indigenous peoples as leaders and equal partners in developing health interventions, ii) increasing our awareness and education around the colonial history and settler presence in Canada, including our role in the ongoing oppression of Indigenous peoples, iii) providing services in ways that recognize and mitigate colonial determinants of health, and iii) practicing cultural safety at an individual level and advocating for it at a structural level. These actions can be realized through educational interventions and ongoing reflexivity among medical trainees and practicing physicians.

High rates of posttraumatic stress symptoms in women living with HIV in Canada.

PURPOSE: Women living with HIV experience high levels of trauma exposure before and after diagnosis. One of the most challenging outcomes following trauma exposure is posttraumatic stress disorder. Despite high exposure to traumatic events, the presence and contributors to posttraumatic stress disorder symptoms have not been examined in women living with HIV in Canada. METHODS: The current study examines the presence of, contributors to, and geographical regions associated with self-reported posttraumatic stress symptoms (PTSS) among 1405 women enrolled in the Canadian HIV Women's Sexual & Reproductive Health Cohort Study (CHIWOS). RESULTS: Separate linear regression models were run for the three provinces in the cohort: British Columbia, Ontario and Québec. Scores consistent with posttraumatic stress disorder were reported by 55.9%, 39.1% and 54.1% of the participants in each province, respectively (F(2, 1402) = 13.53, p < .001). CONCLUSIONS: The results demonstrate that women living with HIV have high rates of PTSS, and that rates and variables associated with these symptoms vary by province. These results suggest the need for trauma-informed practices and care for women living with HIV in Canada, which may need to be tailored for the community and identities of the women.

Geographic differences in the experiences of HIV-related stigma for women living with HIV in northern and rural communities of Ontario, Canada.

INTRODUCTION: In Canada, individuals living in northern and rural regions report more barriers to health service access. For people living with HIV, these barriers may be exacerbated by experiences of HIV-related stigma, and women living with HIV can be disproportionately affected because of intersections of multiple forms of oppression, including racism, sexism and classism. To further understand the impact of geography on the wellbeing of women living with HIV, this study assessed geographic differences in HIV-related stigma experiences among women in the Canadian HIV Women's Sexual & Reproductive Health Cohort Study (CHIWOS). METHODS: CHIWOS is a multisite cohort study of women living with HIV in Canada that operates under community-based participatory research methodology along with GIPA (greater involvement of people with HIV/AIDS) and MIWA (meaningful involvement of women living with HIV/AIDS) principles. This analysis compared peer research associate-administered questionnaire data between participants in northern and southern Ontario, Canada, and between participants in rural and non-rural Ontario. Northern regions were defined by healthcare delivery jurisdiction. The primary outcome was the 10-item shortened HIV Stigma Scale score. Multivariable linear regression models assessed the association between rural and northern regions and stigma score. RESULTS: Sixteen women were excluded due to incomplete HIV Stigma Scale data. Of 701 women included in the analysis, 66 (9.4%) were from northern regions and 24 (3.4%) were from rural regions. Mean stigma scores were 23.9 (standard deviation (SD) 8.0) overall, 26.7 (SD 8.8) in northern regions, 23.6 (SD 7.9) in southern regions, 28.3 (SD 10.1) in rural regions, and 23.8 (SD 7.8) in non-rural regions. In multivariable analyses, northern and rural regions of residence were associated with a 3.05 (95% confidence interval (CI): 0.77, 5.32) and 4.83 (95% CI: 1.37, 8.28) point increase in stigma score, respectively. CONCLUSIONS: Living in both northern and rural regions of Ontario was associated with higher HIV Stigma Scale scores. These geographic discrepancies in experiences of HIV-related stigma highlight the need for region-specific programs to reduce HIV-related stigma and to support people living with HIV who are affected by HIV-related stigma, particularly those living in geographically isolated regions. Prior qualitative studies have documented the important impact of HIV-related stigma, and this study supports these observations with quantitative data from a population that is often under-represented in HIV research.

Trends in discharges from the HIV/AIDS ward at a tertiary Canadian Hospital from 2005 to 2014.

Advances in HIV therapies have transformed HIV infection into a manageable chronic disease. Accordingly, hospital admission trends among people living with HIV may have evolved over time. This study describes discharge diagnoses from the dedicated HIV/AIDS ward at St. Paul's Hospital in Vancouver, Canada. A retrospective database review of admissions to the HIV/AIDS ward between 1 July 2005 and 30 June 2014 was conducted. Primary discharge diagnoses were manually categorized by condition and reviewed by two physicians. Data were analysed in 12-month intervals. Trends were fitted using generalized estimating equations. A total of 1595 individuals with 3919 admissions were included. The median age was 46 years, 77.1% identified as male, 63.6% had a history of injection drug use (IDU) and 61.8% had a history of hepatitis C virus exposure. The most common reasons for admission included non-opportunistic respiratory tract infections (18.2%), cellulitis (7.3%), gastroenteritis (6.0%), endocarditis/bacteremia (4.9%) and bone/joint infections (3.5%). The proportion of admissions attributable to opportunistic infections declined from 16.2% in 2005 to 5.5% in 2014. Over this period, the proportion of individuals on antiretroviral therapy and with virologic suppression increased (odds ratio 1.19 [95% confidence interval 1.16, 1.23] and 1.22 [95% confidence interval 1.17, 1.26], respectively). These results demonstrate a decline in admissions related to opportunistic infections but increased admissions due to other infections among people living with HIV. Preventive and outpatient care for respiratory infections and complications of IDU may further improve health care outcomes and decrease hospital admissions in this setting.

Increased mortality among Indigenous persons in a multisite cohort of people living with HIV in Canada.

OBJECTIVE: Compare all-cause mortality between Indigenous participants and participants of other ethnicities living with HIV initiating combination antiretroviral therapy (cART) in an interprovincial multi-site cohort. METHODS: The Canadian Observational Cohort is a collaboration of 8 cohorts of treatment-naïve persons with HIV initiating cART after January 1, 2000. Participants were followed from the cART initiation date until death or last viral load (VL) test date on or before December 31, 2012. Cox proportional hazard models were used to estimate the effect of ethnicity on time until death after adjusting for age, gender, injection drug use, being a man who has sex with men, hepatitis C, province of origin, baseline VL and CD4 count, year of cART initiation and class of antiretroviral medication. RESULTS: The study sample consisted of 7080 participants (497 Indigenous, 2471 Caucasian, 787 African/Caribbean/Black (ACB), 629 other, and 2696 unknown ethnicity). Most Indigenous persons were from British Columbia (BC) (83%), with smaller numbers from Ontario (13%) and Québec (4%). During the study period, 714 (10%) participants died. The five-year survival probability was lower for Indigenous persons (0.77) than for Caucasian (0.94), ACB (0.98), other ethnicities (0.96) and unknown ethnicities (0.85) (p < 0.0001). In an adjusted proportional hazard model for which missing data were imputed, Indigenous persons were more likely to die than Caucasian participants (hazard ratio = 2.69, p < 0.0001). CONCLUSION: The mortality rate for Indigenous persons was higher than for other ethnicities and is largely reflective of the BC population. Addressing treatment challenges and identifying HIV- and non-HIV-related causes for mortality among Indigenous persons is required to optimize their clinical management.

The Continuum of HIV Care in Rural Communities in the United States and Canada: What Is Known and Future Research Directions.

The nature of the HIV epidemic in the United States and Canada has changed with a shift toward rural areas. Socioeconomic factors, geography, cultural context, and evolving epidemics of injection drug use are coalescing to move the epidemic into locations where populations are dispersed and health care resources are limited. Rural-urban differences along the care continuum demonstrate the implications of this sociogeographic shift. Greater attention is needed to build a more comprehensive understanding of the rural HIV epidemic in the United States and Canada, including research efforts, innovative approaches to care delivery, and greater community engagement in prevention and care.

The role of people living with HIV as patient instructors - reducing stigma and improving interest around HIV care among medical students.

People living with HIV/AIDS (PHAs) are increasingly recognized as experts in HIV and their own health. We developed a simulated clinical encounter (SCE) in which medical students provided HIV pre- and post-test counselling and point-of-care HIV testing for PHAs as patient instructors (PHA-PIs) under clinical preceptor supervision. The study assessed the acceptability of this teaching tool with a focus on assessing impact on HIV-related stigma among medical students. University of Toronto pre-clerkship medical students participated in a series of SCEs facilitated by 16 PHA-PIs and 22 clinical preceptors. Pre- and post-SCE students completed the validated Health Care Provider HIV/AIDS Stigma Scale (HPASS). HPASS measures overall stigma, as well as three domains within HIV stigma: stereotyping, discrimination, and prejudice. Higher scores represented higher levels of stigma. An additional questionnaire measured comfort in providing HIV-related care. Mean scores and results of paired t-tests are presented. Post-SCE, students (n = 62) demonstrated decreased overall stigma (68.74 vs. 61.81, p < .001) as well as decreased stigma within each domain. Post-SCE, students (n = 67) reported increased comfort in providing HIV-related care (10.24 vs. 18.06, p < .001). Involving PHA-PIs reduced HIV-related stigma among medical students and increased comfort in providing HIV-related care.

A comparison of virological suppression and rebound between Indigenous and non-Indigenous persons initiating combination antiretroviral therapy in a multisite cohort of individuals living with HIV in Canada.

BACKGROUND: This study compared time to virological suppression and rebound between Indigenous and non-Indigenous individuals living with HIV in Canada initiating combination antiretroviral therapy (cART). METHODS: Data were from the Canadian Observational Cohort collaboration; eight studies of treatment-naive persons with HIV initiating cART after 1/1/2000. Fine and Gray models were used to estimate the effect of ethnicity on time to virological suppression (two consecutive viral loads [VLs] <50 copies/ml at least 3 months apart) after adjusting for the competing risk of death and time until virological rebound (two consecutive VLs >200 copies/ml at least 3 months apart) following suppression. RESULTS: Among 7,080 participants were 497 Indigenous persons of whom 413 (83%) were from British Columbia. The cumulative incidence of suppression 1 year after cART initiation was 54% for Indigenous persons, 77% for Caucasian and 80% for African, Caribbean or Black (ACB) persons. The cumulative incidence of rebound 1 year after suppression was 13% for Indigenous persons, 6% for Caucasian and 7% for ACB persons. Indigenous persons were less likely to achieve suppression than Caucasian participants (aHR=0.58, 95% CI 0.50, 0.68), but not more likely to experience rebound (aHR=1.03, 95% CI 0.84, 1.27) after adjusting for age, gender, injection drug use, men having sex with men status, province of residence, baseline VL and CD4+ T-cell count, antiretroviral class and year of cART initiation. CONCLUSIONS: Lower suppression rates among Indigenous persons suggest a need for targeted interventions to improve HIV health outcomes during the first year of treatment when suppression is usually achieved.

Residential Stability Reduces Unmet Health Care Needs and Emergency Department Utilization among a Cohort of Homeless and Vulnerably Housed Persons in Canada.

This study examined the association of housing status over time with unmet physical health care needs and emergency department utilization among homeless and vulnerably housed persons in Canada. Homeless and vulnerably housed individuals completed interviewer-administered surveys on housing, unmet physical health care needs, health care utilization, sociodemographic characteristics, substance use, and health conditions at baseline and annually for 4 years. Generalized logistic mixed effects regression models examined the association of residential stability with unmet physical health care needs and emergency department utilization, adjusting for potential confounders. Participants were from Vancouver (n = 387), Toronto (n = 390), and Ottawa (n = 396). Residential stability was associated with lower odds of having unmet physical health needs (adjusted odds ratio (AOR), 0.82; 95 % confidence interval (CI), 0.67, 0.98) and emergency department utilization (AOR, 0.74; 95 % CI, 0.62, 0.88) over the 4-year follow-up period, after adjusting for potential confounders. Residential stability is associated with fewer unmet physical health care needs and lower emergency department utilization among homeless and vulnerably housed individuals. These findings highlight the need to address access to stable housing as a significant determinant of health disparities.

Comparison of coping strategies and supports between aboriginal and non-aboriginal people living with HIV in Ontario.

Complex historical and cultural factors have contributed to the HIV epidemic among Aboriginal populations in Canada. This study assesses social supports, adaptive and maladaptive coping mechanisms, stress, and mastery of Canadian-born Aboriginal and Canadian-born Caucasian people living with HIV in Ontario and posits that coping and social support are important micro- and meso-level factors associated with the epidemic. This cross-sectional analysis included questionnaire data collected from 2007 to 2011 at HIV clinics in Toronto. Categorical and continuous variables were compared using chi-square and Wilcoxon rank sum tests, respectively. Correlates of social support and coping were determined using univariate and multivariable linear regression. The analysis included 70 Aboriginal and 665 Caucasian participants. Aboriginal participants had lower levels of employment, education, and annual household income. Aboriginal participants reported more overall (7 vs. 4, p = 0.0003), ongoing (4 vs. 2, p = 0.0004), and early childhood (2 vs. 1, p = 0.02) stressors. Maladaptive coping, adaptive coping, and mastery scores were similar between Aboriginal and Caucasian participants. In multivariable analysis, injection drug use and lower education levels were significant correlates of higher maladaptive coping and lower overall support scores. Despite numerous socioeconomic challenges and personal stressors, Aboriginal people living with HIV who are accessing care exhibited comparable coping and mastery scores to Canadian-born Caucasian people living with HIV, suggesting remarkable strengths within Aboriginal people living with HIV and their communities.

Extracranial head and neck infections.

This article outlines infections in the submandibular, lateral pharyngeal, retropharyngeal, danger, and prevertebral spaces, in conjunction with infections of the sinuses and mediastinum. By understanding the anatomy and pathophysiology, the reader will gain insight into the rationale for various therapeutic options.