Declining Admission and Mortality Rates for Subarachnoid Hemorrhage in Canada Between 2004 and 2015

Background and Purpose- The purpose of this study was to assess recent trends in the admission and mortality rates for subarachnoid hemorrhage in Canada. Methods- This retrospective cross-sectional study was based on data retrieved from the Canadian Institute for Health Information for all patients diagnosed with subarachnoid hemorrhage in Canada between 2004 and 2015. Adjusted admission rate, in-hospital mortality rates, and discharge disposition were calculated. Results- A total of 19 765  patients were diagnosed with subarachnoid hemorrhage between 2004 and 2015. The mean age was 58.1 years, and 40.3% were men. The annual hospitalization rate was 6.34 per 100 000 person-years, declining by -0.67% annually. In-hospital mortality rate was 21.5%. Conclusions- The Canadian subarachnoid hemorrhage admission and mortality rates are lower than previously reported, with a declining trend.

Contextualizing Canada's hepatitis C virus epidemic

In 2016, Canada signed on to the World Health Organization (WHO) 2030 hepatitis C virus (HCV) disease elimination targets. Most of Canada's HCV disease burden is among five disproportionately affected population groups: 1) Baby boomers, who are at increased risk of dying from decompensated cirrhosis and hepatocellular carcinoma and for whom one-time screening should be recommended to identify those undiagnosed; 2) People who inject drugs (PWID), whose mortality risks include HCV infection, HCV acquisition risks and co-morbid conditions. While HCV infection in PWID can be effectively cured with direct-acting antivirals, premature deaths from acquisition risks, now exacerbated by Canada's opioid crisis, will need to be addressed to achieve the full benefits of curative treatment. PWID require syndemic-based solutions (harm reduction, addictions and mental health support, and management of co-infections, including HIV); 3) Indigenous populations who will require wellness-based health promotion, prevention, care and treatment designed by Indigenous people to address their underlying health disparities; 4) Immigrants who will require culturally designed and linguistically appropriate services to enhance screening and engagement into care; and (5) For those incarcerated because of drug-related crimes, decriminalization and better access to harm reduction could help reduce the impact of HCV infections and premature mortality. A comprehensive prevention, care and treatment framework is needed for Canada's vulnerable populations, including those co-infected with HIV, if we are to achieve the WHO HCV elimination targets by 2030. The aim of this review is to describe the HCV epidemic in the Canadian context.

The opioid crisis in Canada: a national perspective

INTRODUCTION

This review provides a national summary of what is currently known about the Canadian opioid crisis with respect to opioid-related deaths and harms and potential risk factors as of December 2017.

METHODS

We reviewed all public-facing opioid-related surveillance or epidemiological reports published by provincial and territorial ministries of health and chief coroners' or medical examiners' offices. In addition, we reviewed publications from federal partners and reports and articles published prior to December 2017. We synthesized the evidence by comparing provincial and territorial opioid-related mortality and morbidity rates with the national rates to look for regional trends.

RESULTS

The opioid crisis has affected every region of the country, although some jurisdictions have been impacted more than others. As of 2016, apparent opioid-related deaths and hospitalization rates were highest in the western provinces of British Columbia and Alberta and in both Yukon and the Northwest Territories. Nationally, most apparent opioid-related deaths occurred among males; individuals between 30 and 39 years of age accounted for the greatest proportion. Current evidence suggests regional age and sex differences with respect to health outcomes, especially when synthetic opioids are involved. However, differences between data collection methods and reporting requirements may impact the interpretation and comparability of reported data.

CONCLUSION

This report identifies gaps in evidence and areas for further investigation to improve our understanding of the national opioid crisis. The Public Health Agency of Canada will continue to work closely with the provinces, territories and national partners to further refine and standardize national data collection, conduct special studies and expand information-sharing to improve the evidence needed to inform public health action and prevent opioid-related deaths and harms.

General population normative data for the EORTC QLQ-C30 health-related quality of life questionnaire based on 15,386 persons across 13 European countries, Canada and the Unites States

OBJECTIVE

The European Organisation for Research and Treatment of Cancer (EORTC) QLQ-C30 health-related quality of life questionnaire is one of the most widely used cancer-specific health-related quality of life questionnaires worldwide. General population norm data can facilitate the interpretation of QLQ-C30 data obtained from cancer patients. This study aimed at systematically collecting norm data from the general population to develop European QLQ-C30 norm scores and to generate comparable norm data for individual countries in Europe and North America.

METHODS

We collected QLQ-C30 data from the general population across 11 European Union (EU) countries, Russia, Turkey, Canada and United States (n ≥ 1000/country). Representative samples were stratified by sex and age groups (18-39, 40-49, 50-59, 60-69 and ≥ 70 years). After applying weights based on the United Nations population distribution statistics, we calculated QLQ-C30 domain scores to generate a 'European QLQ-C30 Norm' based on the EU countries. Further, we calculated QLQ-C30 norm scores for all 15 individual countries.

RESULTS

A total of 15,386 respondents completed the online survey. For the EU sample, most QLQ-C30 domains showed differences by sex/age, with men scoring somewhat better health than women, while age effects varied across domains. Substantially larger differences were seen in inter-country comparisons, with Austrian and Dutch respondents reporting consistently better health compared with British and Polish respondents.

CONCLUSIONS

This study is the first to systematically collect EORTC QLQ-C30 general population norm data across Europe and North America applying a consistent data collection method across 15 countries. These new norm data facilitate valid intra-country as well as inter-country comparisons and QLQ-C30 score interpretation.

Demarcating the dirty work: Canadian Fertility professionals' use of boundary-work in contentious egg donation

The potential medical risks to egg donors, in addition to the concern over the commodification of life, has led to debates surrounding the ethics of paying donors. In Canada, payment for eggs is prohibited by law; however, what is considered payment is contentious and has yet to be defined. The lack of legislative clarity coupled with increased ethical concerns over paying a donor has shifted egg donation from a medically-controlled procedure to a legal and social endeavor involving multiple professionals. Through semi-structured interviews with 52 medical and non-medical fertility practitioners, I show how medical practitioners use boundary-work to remove their practice from the ethical and legal debates surrounding egg donation, the "dirty work". I examine how the medical profession relies on discourses of "practicing science" to present their work as favorable and removed from current debates and potential legal ramifications. In showing how medical practitioners rely on boundary-work to distinguish their work from non-scientific and non-medical activities, I expand Gieryn's original conceptualization of boundary-work to demonstrate how medical practitioners can selectively draw on their practice of science to remove their work from ethically and legally contentious issues, the dirty work.

Tramadol dispensing patterns and trends in Canada, 2007-2016

PURPOSE

Opioid use and associated mortality and morbidity have substantially increased in Canada, which recent interventions have aimed to reduce. Tramadol is an atypical prescription-only (but unscheduled under Canada's narcotics law) opioid analgesic and not subject to controls for other (eg, strong) opioids. Given experiences in different jurisdictions, tramadol may have been increasingly dispensed as a "substitute" drug during a period with increasingly restrictive controls for other (scheduled) opioids.

METHODS

We examined the annual population-level retail dispensing (as a proxy for use) of tramadol and (scheduled) "strong opioids" in Canadian provinces for 2007-2016 based on data from a representative national sample of community pharmacies, covering the majority of episodes of opioid dispensing. Data for both aforementioned formulation categories were converted into defined daily doses (DDD)/1000 population/day and examined descriptively and by segmented regression analyses (to identify significant breakpoints in trends).

RESULTS

Tramadol use strongly increased in all provinces until 2009. After 2009, tramadol dispensing levels either decelerated their increase or plateaued; "strong opioid" dispensing levels, in comparison, increased strongly until 2011 and decelerated or decreased for the remaining period. Tramadol was consistently dispensed at lower levels than "strong opioids."

CONCLUSIONS

Tramadol and "strong opioids" showed similar (bifurcated) use trends, with initial increases and subsequent inflections, yet reductions in dispensing occurred earlier for tramadol than for "strong opioids" (the latter occurring following with recent interventions). Distinct from experiences with differential opioid control regimes elsewhere, there is no evidence that tramadol figured as a "substitution" drug for increasingly restricted "strong opioids" in Canada.

Examining the Association and Directionality between Mental Health Disorders and Substance Use among Adolescents and Young Adults in the U.S. and Canada-A Systematic Review and Meta-Analysis

Background: The purpose of this systematic review was to examine the association and directionality between mental health disorders and substance use among adolescents and young adults in the U.S. and Canada. Methods: The following databases were used: Medline, PubMed, Embase, PsycINFO, and Cochrane Library. Meta-analysis used odds ratios as the pooled measure of effect. Results: A total of 3656 studies were screened and 36 were selected. Pooled results showed a positive association between depression and use of alcohol (odds ratio (OR) = 1.50, 95% confidence interval (CI): 1.24–1.83), cannabis (OR = 1.29, 95% CI: 1.10–1.51), and tobacco (OR = 1.65, 95% CI: 1.43–1.92). Significant associations were also found between anxiety and use of alcohol (OR = 1.54, 95% CI: 1.19–2.00), cannabis (OR = 1.36, 95% CI: 1.02–1.81), and tobacco (OR = 2.21, 95% CI: 1.54–3.17). A bidirectional relationship was observed with tobacco use at baseline leading to depression at follow-up (OR = 1.87, CI = 1.23–2.85) and depression at baseline leading to tobacco use at follow-up (OR = 1.22, CI = 1.09–1.37). A unidirectional relationship was also observed with cannabis use leading to depression (OR = 1.33, CI = 1.19–1.49). Conclusion: This study offers insights into the association and directionality between mental health disorders and substance use among adolescents and young adults. Our findings can help guide key stakeholders in making recommendations for interventions, policy and programming.

First Nations students' perceptions of school nutrition policy implementation: A mixed methods study

AIM

School nutrition policies can improve healthy food access for Indigenous First Nations children in Canada. This study explored First Nations students' perceptions of a school nutrition policy.

METHODS

The research was a process evaluation of school nutrition policy implementation using a mixed-methods design. Students in grades 4-12 (n = 94) completed a 17-question survey to capture their perceptions of the policy. Survey data informed an 11-question semi-structured interview guide. Transcripts from interviews with students (n = 20) were analysed using content analysis to identify barriers and facilitators to policy implementation.

RESULTS

Key facilitating factors to policy implementation were student support for the policy and taste preferences. Most students (87%) agreed that only healthy foods should be served at school and, in interviews, expressed a preference for healthy food choices. Barriers to policy implementation included foods available at school and lack of communication between students and their teachers and parents. Half (50%) of surveyed students reported that their eating habits at school were average; interviews explained that their diets could be improved by consuming more fruit and vegetables at school. Both surveys and interviews found that communication between students and their parents and teachers about what they ate and drank at school was low.

CONCLUSIONS

To support children's healthy eating at school, the school nutrition policy could provide clear guidelines on foods permissible in the school, while considering social and environmental barriers to healthy eating. The involvement of First Nations children in the implementation and evaluation of school nutrition policies is recommended.

Perceptions of plain packaging and health warning labels for cannabis among young adults: findings from an experimental study

BACKGROUND

There is strong evidence that plain cigarette packaging and health warning labels (HWLs) reduce brand appeal and increase health knowledge. There is limited evidence examining this population-level public health approach for cannabis packaging. This issue is of particular importance in light of the recent legalization of recreational cannabis in Canada. The current study examined perceptions of plain packaging and HWLs for cannabis packages among young adults.

METHODS

An online experimental study was conducted with a sample of university students in Alberta, Canada (n = 656). Respondents were randomly assigned to view cannabis packages in one of four conditions: Condition 1: branded pack, Condition 2: plain pack (uniform color, brand imagery removed, standardized font), Condition 3: branded pack with a HWL, and Condition 4: plain pack with a HWL. Respondents in Conditions 3 and 4 viewed five text-based HWLs, each corresponding to a health effect associated with cannabis use: (1) brain development, (2) mental health issues, (3) impaired driving, (4) nonlethal overdose, and (5) addiction. After viewing packs, respondents rated packs and health warnings on various measures.

RESULTS

Branded packages without HWLs were rated as most appealing compared to all other packs (p < 0.001 for all contrasts). No differences were found in ratings of appeal when comparing branded and plain packs with HWLs. Warning messages for cognitive development and impaired driving were rated highest on levels of perceived effectiveness, believability, and fear, whereas the addiction warning was rated among the lowest. In general, there were gaps in health knowledge related to cannabis use, however after viewing packs with warnings (compared to viewing packs without warnings) levels of health knowledge increased across all health effects (p < 0.01 for all). Lastly, a significant majority of young adults reported they would purchase the branded pack without a HWL (39.5%), compared to all other pack types (p < 0.05 for all contrasts). The lowest proportion of young adults reported they would purchase a plain pack with a HWL (1.1%).

CONCLUSIONS

Plain packaging and health warnings may reduce brand appeal and increase health knowledge among young adults.

Accounting for context: Social enterprises and meaningful employment for people with mental illness

BACKGROUND

Many people living with mental illness want paid work, but finding and maintaining mainstream employment remains challenging. In recent decades, social enterprises have emerged as one alternative site for paid employment. Existing research has examined the experiences of people with mental illness working in social enterprises, but less is known about the organizational character of these workplaces.

OBJECTIVE

The objective of this paper is to develop a better understanding of social enterprises as organizational contexts for workers with mental illness.

METHODS

The research employed a qualitative methodology, conducting semi-structured interviews with executive directors and managers at 42 organizations operating 67 social enterprises across CanadaRESULTS:While there are strong similarities in organizational mandate to create meaningful employment there are also important variations between social enterprises. These include variations in size, economic activity and organizational structure, as well as differences in hours of work, rates of pay and the nature and extent of workplace accommodation. These variations reflect both immediate organizational contexts as well as broader economic constraints that enterprises confront.

CONCLUSIONS

Understanding the varied nature of social enterprises is important for thinking about future enterprise development, and the capacity of such organizations to create meaningful employment for people living with mental illness.

What is new in the Canadian Immunization Guide: November 2016 to November 2018

The Canadian Immunization Guide is an online resource that provides evidence-based recommendations on the use of vaccines and vaccine administration practices to health care providers and public health practitioners in Canada. Its contents are based on the most up-to-date recommendations of the National Advisory Committee on Immunization (NACI) and the Committee to Advise on Tropical Medicine and Travel (CATMAT). The Canadian Immunization Guide (CIG) is frequently updated online in response to new evidence and changing product indications. Between November 2016 and November 2018, new and updated recommendations were published for the chapters on Vaccine Administration Practices, Immunization of Immunocompromised Persons, and Immunization During Pregnancy and Breastfeeding and on seven active vaccines (for cholera and traveller's diarrhea, influenza, hepatitis A, hepatitis B, herpes zoster, human papillomavirus and pertussis), as well as a recent update on measles post-exposure prophylaxis.

Outbreak of invasive Streptococcus pneumoniae among an inner-city population in Victoria, British Columbia, 2016-2017

Background

Invasive pneumococcal disease (IPD) is a significant cause of morbidity and mortality; however, outbreaks of IPD are relatively rare. Homelessness and substance use are known risk factors for IPD and have been associated with several outbreaks in Canada, despite national recommendations for routine childhood and targeted adult pneumococcal vaccination.

Objectives

To describe the epidemiology and public health challenges related to an outbreak of novel serotype 4 IPD in a homeless and unstably housed population in Victoria, British Columbia during the autumn and winter of 2016-2017.

Results

Prospective, enhanced surveillance was initiated for laboratory confirmed cases reported to public health, including variables recording housing status and substance use. Thirty-three cases of serotype 4 IPD within the Victoria area were reported to public health between August 1, 2016 and September 1, 2017. Compared with other serotypes, these cases were more likely to be middle-aged, homeless or unstably housed, and to have a recent history of substance use. A targeted pneumococcal vaccination campaign was initiated in collaboration with external community organizations; however, these initiatives were challenged by incomplete data and staffing constraints.

Conclusion

This report illustrates an outbreak of serotype 4 IPD among an inner-city population with multiple risk factors, including homelessness, unstable housing and substance use. Given the challenges controlling the outbreak, outreach capacity and pneumococcal vaccination coverage is needed among this marginalized population.

Estimated Annual Deaths, Hospitalizations, and Emergency Department and Physician Office Visits from Foodborne Illness in Ontario

Public Health Ontario is working to estimate the burden of disease from environmental hazards in Ontario, Canada. As part of this effort, we estimated deaths and health care utilization resulting from exposure to pathogens and toxic substances in food. We applied fractions for the proportion of illness attributable to foodborne transmission to the annual (2008–2012) counts of deaths, hospitalizations, emergency department (ED) visits, and physician office visits for 15 diseases (13 pathogen-specific diseases and 2 nonspecific syndromes) captured by administrative health data. Nonspecific gastroenteritis (causative agent unknown) was the dominant disease, accounting for 98% of ED visits, 94% of hospitalizations, and 88% of deaths annually attributed to the 15 diseases. We estimated that foodborne nonspecific gastroenteritis results in ∼137,000 physician office visits (1000/100,000 population), 40,000 ED visits (310/100,000), 6200 hospitalizations (47/100,000), and 59 deaths (0.45/100,000) in Ontario per year (mean estimates). Our results indicate that pathogen-specific approaches to foodborne disease surveillance can substantially underestimate the deaths and illness resulting from exposure to foodborne pathogens and other causes of foodborne illness.

Area deprivation and attachment to a general practitioner through centralized waiting lists: a cross-sectional study in Quebec, Canada

BACKGROUND

Access to primary healthcare is an important social determinant of health and having a regular general practitioner (GP) has been shown to improve access. In Canada, socio-economically disadvantaged patients are more likely to be unattached (i.e. not have a regular GP). In the province of Quebec, where over 30% of the population is unattached, centralized waiting lists were implemented to help patients find a GP. Our objectives were to examine the association between social and material deprivation and 1) likelihood of attachment, and 2) wait time for attachment to a GP through centralized waiting lists.

METHODS

A cross-sectional study was conducted in five local health networks in Quebec, Canada, using clinical administrative data of patients attached to a GP between June 2013 and May 2015 (n = 24, 958 patients) and patients remaining on the waiting list as of May 2015 (n = 49, 901), using clinical administrative data. Social and material area deprivation indexes were used as proxies for patients' socio-economic status. Multiple regressions were carried out to assess the association between deprivation indexes and 1) likelihood of attachment to a GP and 2) wait time for attachment. Analyses controlled for sex, age, local health network and variables related to health needs.

RESULTS

Patients from materially medium, disadvantaged and very disadvantaged areas were underrepresented on the centralized waiting lists, while patients from socially disadvantaged and very disadvantaged areas were overrepresented. Patients from very materially advantaged and advantaged areas were less likely to be attached to a GP than patients from very disadvantaged areas. With the exception of patients from socially disadvantaged areas, all other categories of social deprivation were more likely to be attached to a GP compared to patients from very disadvantaged areas. We found a pro-rich gradient in wait time for attachment to a GP, with patients from more materially advantaged areas waiting less than those from disadvantaged areas.

CONCLUSION

Our findings suggest that there are socio-economic inequities in attachment to a GP through centralized waiting lists. Policy makers should take these findings into consideration to adjust centralized waiting list processes to avoid further exacerbation of health inequities.

An evidence-based program for rural surgical and obstetrical networks

CONTEXT

Over the past 25 years, the attrition of small volume rural surgery programs across Western Canada has been significant and sustained. The 'Joint position paper on rural surgery and operative delivery' (JPP) offers a consensus policy framework for the sustainability of rural surgical programs by nesting them within larger regional programs. The many recommendations in the JPP coalesce around the recognition that surgical care should be provided as close to home as possible. To achieve this, surgical care should be delivered within rural and regional surgical programs integrated into well-functioning networks staffed by generalist specialist surgeons trained across surgical disciplines and family physicians with enhanced surgical skills (FPESS).

ISSUES

There are important issues to be addressed in the creation of these networks, not the least of which is the sometimes challenging relationships between the stakeholders in these networks and skepticism about the training of FPESS and the safety and quality of low volume surgical programs. Relationships extend from the patient-provider nexus to include interprofessional relationships and those between the pentagram partners (patients/communities, care providers, administrators, researchers and policymakers). Equally important to resolve is the issue of the minimum threshold volume of local surgical activity required for a sustainable professional workforce in a small rural program.

LESSONS LEARNED

A collaborative effort by key stakeholders in British Columbia has produced a program designed to overcome these challenges and build effective networks of rural surgical care, based on the synergistic interplay of five key pillars to support small surgical sites. These five pillars include clinical coaching, continuing quality improvement (CQI), remote presence technology to mitigate geographic challenges, sustainable local surgical capacity, and evaluation of dimensions of network function and clinical outcomes. This is the first time that the integration of these five pillars, each derived from best available evidence, have been positioned together as deliberate strategic policy to improve rural surgical care.

"Still learning and evolving in our approaches": patient and stakeholder engagement among Canadian community-based primary health care researchers

PLAIN ENGLISH SUMMARY

Increasingly, health researchers are conducting their research in partnership with non-researchers such as patients and caregivers, advocacy groups, clinicians, and policymakers. The idea behind this partnership is to make research more relevant and appropriate. However, so far there is not much evidence about how this partnership or engagement actually affects research. We conducted an online survey of 12 teams in Canada that have engaged patients and other stakeholders in community based health research, partly as a requirement to obtain funding. We found that in many cases, the teams have engaged a wide variety and large number of stakeholders, and have involved them in many different stages of their research. Teams reported that their overall experience of this approach to research has been positive, but some challenges have been encountered along the way. Some teams found that it was difficult to communicate appropriately with all the stakeholders, and to keep them informed when research was going slowly. Other teams had trouble finding government representatives to work with. Several teams noted that engagement is time-consuming, and requires a lot of effort. Nevertheless, all teams reported that they had learned from the experience, and found it valuable. As a result, Canadian health care researchers are better positioned to engage with patients and other stakeholders in the future.

ABSTRACT

Background Patient and other stakeholder engagement in research is increasingly important, but there is limited evidence of its impact. In 2013, the Canadian Institutes of Health Research launched a five-year Community Based Primary Health Care (CBPHC) initiative that funded 12 teams for innovative approaches to primary health care involving engagement with patients, communities, decision-makers, and clinicians across jurisdictions in Canada. The present study examines the extent of engagement by these teams, and the factors that affected it, either as challenges or opportunities. Methods We conducted a cross-sectional web-based survey across the 12 CBPHC Innovation Teams, in which we were also participants. We used a data collection tool developed by the Patient Centered Outcomes Research Institute that included both closed and open-ended questions. Results The quantitative data showed that the CBPHC Innovation teams have engaged with diverse stakeholders at different levels and in different stages of research. Almost all teams surveyed engaged with policymakers, most with clinicians and health system representatives, and more than half with patients, mostly at the level of consultation or collaboration. There were very few instances of stakeholder-led research reported. There was a near universal recognition of the importance of communications processes/tools in facilitating engagement, whereas time was the most commonly identified challenge. In almost all cases, challenges encountered were partially if not fully resolved.The qualitative findings showed that each team's engagement was contextualized by factors such as the jurisdictions and geographic scope of the project, the number and type of stakeholders engaged and their level of involvement. These intersected with the researchers' motivations for engagement, to give rise to diverse experiences, but ones that the CBPHC teams assessed positively as an approach to research. Conclusions Over the past five years, primary health care researchers in Canada have been actively engaging with patients and other stakeholders. The wide range, extent and nature of that engagement shows that these researchers have anticipated developments in this approach to research and are thus in a position to support and strengthen future efforts to understand the impact of this engagement on health care outcomes.

Cancer incidence among First Nations adults in Canada: follow-up of the 1991 Census Mortality Cohort (1992-2009)

OBJECTIVES

Estimate site-specific cancer incidence rates for a wide range of cancers in First Nations adults in Canada, and compare these with rates in non-Aboriginal adults.

METHODS

Responses from persons aged 25 and older to the 1991 Long Form Census were linked to national mortality and cancer databases. First Nations- and non-Aboriginal-specific incidence rates were age-standardized to the world standard population. The sex- and site-specific relative risks (RR) of cancer in First Nations compared to those in non-Aboriginal adults were estimated with Poisson regression. Results were stratified by residence on-reserve (all cancers combined) and region of Canada (four most common cancer sites).

RESULTS

Compared to non-Aboriginal adults, First Nations had higher incidence of colon and rectum, kidney, cervix, and liver cancers and lower incidence of prostate, breast, bladder, uterus, ovary, and brain cancers, as well as non-Hodgkin lymphoma, leukemia, and melanoma. First Nations women additionally had higher incidence of stomach, gallbladder, and laryngeal cancers and lower incidence of thyroid cancers compared to non-Aboriginal women. The higher relative incidence of stomach and gallbladder cancers was observed only among First Nations adults who reported living on-reserve. Incidence of lung cancer was similar for First Nations and non-Aboriginal adults nationally, though variation by region of Canada was observed.

CONCLUSION

First Nations people in Canada have disproportionately high rates of certain cancers, providing evidence to support public health policy and programming. More research is needed to identify factors contributing to the significantly lower incidence observed for various cancer types. Novel methods for studying disparities in cancer incidence among First Nations people are required to support ongoing cancer control planning and advocacy.

Estimating the impact of early hepatitis C virus clearance on hepatocellular carcinoma risk

Although achieving sustained virological response (SVR) through antiviral therapy could reduce the risk of hepatocellular carcinoma (HCC) attributable to hepatitis C virus (HCV) infection, the impact of early viral clearance on HCC is not well defined. In this study, we compared the risk of HCC among individuals who spontaneously cleared HCV (SC), the referent population, with the risk in untreated chronic HCV (UCHC), those achieved SVR, and those who failed interferon-based treatment (TF). The BC Hepatitis Testers Cohort (BC-HTC) includes individuals tested for HCV between 1990-2013, integrated with medical visits, hospitalizations, cancers, prescription drugs and mortality data. This analysis included all HCV-positive patients with at least one valid HCV RNA by PCR on or after HCV diagnosis. Of 46 666 HCV-infected individuals, there were 12 527 (26.8%) SC; 24 794 (53.1%) UCHC; 5355 (11.5%) SVR and 3990 (8.5%) TF. HCC incidence was lowest (0.3/1000 person-years (PY)) in the SC group and highest in the TF group (7.7/1000 PY). In a multivariable model, compared to SC, TF had the highest HCC risk (hazard ratio (HR):14.52, 95% confidence interval (CI): 9.83-21.47), followed by UCHC (HR: 5.85; 95% CI: 4.07-8.41). Earlier treatment-based viral clearance similar to SC could decrease HCC incidence by 69.4% (95% CI: 57.5-78.0), 30% (95% CI: 10.8-45.1) and 77.5% (95% CI: 69.4-83.5) among UCHC, SVR and TF patients, respectively. In conclusion, using SC as a real-world comparator group, it showed that substantial reduction in HCC risk could be achieved with earlier treatment initiation. These analyses should be replicated in patients who have been treated with direct acting antiviral therapies.

Driving under the influence of prescription opioids: Self-reported prevalence and association with collision risk in a large Canadian jurisdiction

BACKGROUND

Motor vehicle collisions are an important contributor to prescription opioid use-related morbidity and mortality. The purpose of the current study was to estimate the prevalence of driving under the influence of prescription opioids (DUIPO) in Ontario, Canada, and to measure the association between this behaviour and the risk of a motor vehicle collision.

METHODS

Data were based on telephone interviews with 7857 respondents who reported having driven in the past year. Data were derived from the 2011-2016 cycles of the CAMH Monitor, an ongoing cross-sectional representative survey of adults aged 18 years and older. A binary logistic regression analysis of collision involvement in the previous 12 months was conducted and included demographic characteristics (sex, age, marital status, education, income, region), driving exposure, poor mental health, non-medical use of prescription opioids, and driving after use of alcohol.

RESULTS

The prevalence of past-year DUIPO was 3.1%. Controlling for demographic characteristics, driving exposure, and other risk factors, self-reported DUIPO significantly increased the odds of a collision (AdjOR = 1.97; 95% CI 1.08, 3.60; p = 0.026).

CONCLUSION

Based on these findings, DUIPO is a notable road safety issue. Research focused on better understanding the impact of prescription opioids on driver behaviour, reducing the prevalence of DUIPO, and improving drug-impaired driving policy and interventions should be prioritized in public health strategies.

A latent class analysis of substance use and culture among gay, bisexual and other men who have sex with men

Assessments of gay and bisexual men's substance use often obscures salient sociocultural and identity-related experiences related to how they use drugs. Latent class analysis was used to examine how patterns of substance use represent the social, economic and identity-related experiences of this population. Participants were sexually active gay and bisexual men (including other men who have sex with men), aged ≥ 16 years, living in Metro Vancouver (n = 774). LCA indicators included all substances used in the past six months self-reported by more than 30 men. Model selection was made with consideration to model parsimony, interpretability and optimisation of statistical criteria. Multinomial regression identified factors associated with class membership. A six-class solution was identified representing: 'assorted drug use' (4.5%); 'club drug use' (9.5%); 'street drug use' (12.1%); 'sex drug use' (11.4%); 'conventional drug use' (i.e. tobacco, alcohol, marijuana; 25.9%); and 'limited drug use' (36.7%). Factors associated with class membership included age, sexual orientation, annual income, occupation, income from drug sales, housing stability, group sex event participation, gay bars/clubs attendance, sensation seeking and escape motivation. These results highlight the need for programmes and policies that seek to lessen social disparities and account for social distinctions among this population.

Transnationalism, parenting, and child disciplinary practices of African immigrants in Alberta, Canada

Child discipline remains a topic of public health interest across the globe. Despite this enduring interest, very little is known about the child disciplinary practices of African immigrants in Canada. This paper explores the disciplinary practices of African immigrant parents in Alberta, a Canadian province with a recent surge in the population of African immigrants. Employing a critical ethnographic methodology, informed by transnational theory, we collected data through in-depth qualitative interviews with a purposive sample of African community leaders (n = 14), African immigrant parents (n = 32), policymakers (n = 2), and health and immigrant settlement workers (n = 10). As members of the African immigrant community, we were deeply immersed in the research settings, which afforded us the opportunity to collect pertinent observational data in the form of reflexive notes. Thematic analysis of the data revealed child disciplinary approaches that incorporate Canadian and African parenting practices, as well as practices that appear somewhat unique to this demographic. We found that African immigrant parents used corporal discipline, persuasive discipline, and a hybrid of the two, as well as emerging practices involving transnational fostering and emotional isolation of children who persistently misbehaved. These practices, in their totality, appeared to be influenced by the transnational experiences of parents and precepts that are traceable to Canada's legal and educational systems. We present theoretical, policy, and service implications of our findings, including a recommendation to incorporate sociocultural dimensions of child discipline into Canadian child welfare policies and practices.

The score distribution and factor structure of the Community Assessment of Psychic Experiences-Positive Scale (CAPE-P15) in a Canadian sample

AIM

Psychotic-like experiences (PLEs) share several risk factors with psychotic disorders and confer greater risk of developing a psychotic disorder. Thus, individuals with PLEs not only comprise a valuable population in which to study the aetiology and premorbid changes associated with psychosis, but also represent a high-risk population that could benefit from clinical monitoring or early intervention efforts.

METHOD

We examined the score distribution and factor structure of the current 15-item Community Assessment of Psychic Experiences-Positive Scale (CAPE-P15) in a Canadian sample. The CAPE-P15, which measures current PLEs in the general population, was completed by 1741 university students.

RESULTS

The distribution of total scores was positively skewed, and confirmatory factor analysis indicated that a 3-factor structure produced the best fit.

CONCLUSION

The CAPE-P15 has a similar score distribution and consistently measures three types of positive PLEs: persecutory ideation, bizarre experiences and perceptual abnormalities when administered in Canada vs Australia.

Journey to Health: (Re) Contextualizing the Health of Canada's Refugee Population

Existing literature on refugee health has often focused exclusively on either the post-arrival or pre-arrival experience. We believe the totality of each individual social identity should be acknowledged, including life prior to becoming a refugee. Thus, health status must be contextualized within pre-arrival health status and living conditions, health-care access, flight experiences, combined with post-arrival status: a fluid journey-to-health arc. The following article offers a holistic view of refugee health as an outcome of the entirety of this journey captured in a series of in-depth interviews with long-term, established service providers in Hamilton, Ontario. Our findings illustrate the importance of viewing health issues within the context of time and space. Refugees embark on fragmented journeys, leading to multiple challenges for providers, such as limited case histories, the absence of documentation and cultural (in)competence in terms of practice.

Decolonizing Community Psychology by Supporting Indigenous Knowledge, Projects, and Students: Lessons from Aotearoa New Zealand and Canada

Community psychology has long stood as a social justice agitator that encouraged reformation both within and outside of the academy, while keeping a firm goal of building greater well-being for people in communities. However, community psychology's historically Euro-centric orientation and applied, interventionist focus may inadvertently promote colonial agendas. In this paper, we focus on the example of Indigenous Pacific peoples, drawing upon experience working among Indigenous iTaukei Fijian communities and with Indigenous frameworks for promoting student success in Aotearoa New Zealand and Canada. We outline how community psychology curricula can strive toward decolonization by (a) teaching students to respectfully navigate complexities of Indigenous knowledge and traditions that contest colonial ways of being and doing, (b) act as facilitators who build toward collaborative community projects and model this research practice to students, and (c) boost Indigenous student success by fostering relationships with instructors and fellow students that are embedded within the relational model of self that is often absent in individualistic-oriented Western academic settings.