Disparities in prostate cancer screening, diagnoses, management, and outcomes between Indigenous and non-Indigenous men in a universal health care system

BACKGROUND

Indigenous Peoples have higher morbidity rates and lower life expectancies than non-Indigenous Canadians. Identification of disparities between Indigenous and non-Indigenous men regarding prostate cancer (PCa) screening, diagnoses, management, and outcomes was sought.

METHODS

An observational cohort of men diagnosed with PCa between June 2014 and October 2022 was studied. Men were prospectively enrolled in the province-wide Alberta Prostate Cancer Research Initiative. The primary outcomes were tumor characteristics (stage, grade, and prostate-specific antigen [PSA]) at diagnosis. Secondary outcomes were PSA testing rates, time from diagnosis to treatment, treatment modality, and metastasis-free, cancer-specific, and overall survivals.

RESULTS

Examination of 1,444,974 men for whom aggregate PSA testing data were available was performed. Men in Indigenous communities were less likely to have PSA testing performed than men outside of Indigenous communities (32 vs. 46 PSA tests per 100 men [aged 50-70 years] within 1 year; p < .001). Among 6049 men diagnosed with PCa, Indigenous men had higher risk disease characteristics: a higher proportion of Indigenous men had PSA ≥ 10 ng/mL (48% vs. 30%; p < .01), TNM stage ≥ T2 (65% vs. 47%; p < .01), and Gleason grade group ≥ 2 (79% vs. 64%; p < .01) compared to non-Indigenous men. With a median follow-up of 40 months (interquartile range, 25-65 months), Indigenous men were at higher risk of developing PCa metastases (hazard ratio, 2.3; 95% CI, 1.2-4.2; p < .01) than non-Indigenous men.

CONCLUSIONS

Despite receiving care in a universal health care system, Indigenous men were less likely to receive PSA testing and more likely to be diagnosed with aggressive tumors and develop PCa metastases than non-Indigenous men.

One child, one appointment: how institutional discourses organize the work of parents and nurses in the provision of childhood vaccination for First Nations children

To effectively support childhood vaccine programs for First Nations Peoples, Canada's largest population of Indigenous Peoples, it is essential to understand the context, processes, and structures organizing vaccine access and uptake. Rather than assuming that solutions lie in compliance with current regulations, our aim was to identify opportunities for innovation by exploring the work that nurses and parents must do to have children vaccinated. In partnership with a large First Nations community, we used an institutional ethnography approach that included observing vaccination clinic appointments, interviewing individuals involved in childhood vaccinations, and reviewing documented vaccination processes and regulations (texts). We found that the 'work' nurses engage in to deliver childhood vaccines is highly regulated by standardized texts that prioritize discourses of safety and efficiency. Within the setting of nursing practice in a First Nations community, these regulations do not always support the best interests of families. Nurses and parents are caught between the desire to vaccinate multiple children and the requirement to follow institutionally authorized processes. The success of the vaccination program, when measured solely by the number of children who follow the vaccine schedule, does not take into consideration the challenges nurses encounter in the clinic or the work parents do to get their children vaccinated. Exploring new ways of approaching the processes could lead to increased vaccination uptake and satisfaction for parents and nurses.

Integrating preventive dental care into general Paediatric practice for Indigenous communities: paediatric residents' perceptions

This qualitative study aimed to explore paediatric residents' perceptions of the feasibility of incorporating preventive dental care into a general paediatric outreach clinic for a First Nations community. Four focus groups were conducted with paediatric residents and attending paediatricians. Interviews were recorded, transcribed verbatim and analysed using a basic interpretive qualitative approach. Three major themes emerged from the data: advantages of integration, barriers to integration and strategies for integration. Comprehensive care and service delivery were the two identified advantages of integration. Three categories of barriers emerged including patient and caregiver-related, resident-related and setting-related barriers. Training and practice, patient education, support and policy were the suggested strategies for successful integration. Providers were found to be open to integrating preventive dental care into their practice. However, barriers impeded the success of this integration. Multiple strategies including oral health care training for medical providers, office support and policy changes would facilitate successful integration.

Explaining the variability in cardiovascular risk factors among First Nations communities in Canada: a population-based study

BACKGROUND

Historical, colonial, and racist policies continue to influence the health of Indigenous people, and they continue to have higher rates of chronic diseases and reduced life expectancy compared with non-Indigenous people. We determined factors accounting for variations in cardiovascular risk factors among First Nations communities in Canada.

METHODS

Men and women (n=1302) aged 18 years or older from eight First Nations communities participated in a population-based study. Questionnaires, physical measures, blood samples, MRI of preclinical vascular disease, and community audits were collected. In this cross-sectional analysis, the main outcome was the INTERHEART risk score, a measure of cardiovascular risk factor burden. A multivariable model was developed to explain the variations in INTERHEART risk score among communities. The secondary outcome was MRI-detected carotid wall volume, a measure of subclinical atherosclerosis.

FINDINGS

The mean INTERHEART risk score of all communities was 17·2 (SE 0·2), and more than 85% of individuals had a risk score in the moderate to high risk range. Subclinical atherosclerosis increased significantly across risk score categories (p<0·0001). Socioeconomic advantage (-1·4 score, 95% CI -2·5 to -0·3; p=0·01), trust between neighbours (-0·7, -1·2 to -0·3; p=0·003), higher education level (-1·9, -2·9 to -0·8, p<0·001), and higher social support (-1·1, -2·0 to -0·2; p=0·02) were independently associated with a lower INTERHEART risk score; difficulty accessing routine health care (2·2, 0·3 to 4·1, p=0·02), taking prescription medication (3·5, 2·8 to 4·3; p<0·001), and inability to afford prescription medications (1·5, 0·5 to 2·6; p=0·003) were associated with a higher INTERHEART risk score. Collectively, these factors explained 28% variation in the cardiac risk score among communities. Communities with higher socioeconomic advantage and greater trust, and individuals with higher education and social support, had a lower INTERHEART risk score. Communities with difficulty accessing health care, and individuals taking or unable to afford prescription medications, had a higher INTERHEART risk score.

INTERPRETATION

Cardiac risk factors are lower in communities with high socioeconomic advantage, greater trust, social support and educational opportunities, and higher where it is difficult to access health care or afford prescription medications. Strategies to optimise the protective factors and reduce barriers to health care in First Nations communities might contribute to improved health and wellbeing.

FUNDING

Heart and Stroke Foundation of Canada, Canadian Partnership Against Cancer, Canadian Institutes for Health Research.

Promoting the strengths and resilience of an Indigenous community through photovoice

In the face of negative media attention, community members and Elders from the First Nation community of Maskwacis identified the importance of promoting community strengths and reframing perceptions of their community. Two research questions were addressed: (1) How do youth in Maskwacis view their community strengths? and (2) To what extent can photographs be used as a tool for reframing perceptions of an Indigenous community? A community-based participatory research approach was used for the current photovoice project, through which two Elders and eleven youth were engaged. Indigenous photographers trained youth participants, and Elders mentored youth to capture photographs that represented their community's strengths and resilience. Youth selected forty photos to display at a total of six photo exhibits, where feedback was gathered from 392 attendees using brief questionnaires. The content of their photos was analyzed using thematic analysis. This resulted in four themes that described the strengths of Maskwacis, reflecting the community's strong relationships, commitment to culture, the beautiful natural world that is a part of Maskwacis, and the community's ability to look toward the future. In addition, findings provide foundational support for the use of photographs to reframe perceptions of an Indigenous community. The majority (93%) of survey respondents provided examples of ways that viewing the photos had positively changed their perceptions of Maskwacis. This study prompts consideration of the strengths and resilience of other Indigenous communities facing similar social and health issues. Therefore, findings are highly relevant to paediatric health care providers seeking to provide culturally responsive care.

High Frequency of Pre-Existing Type 2 Diabetes in a Series of Pregnant Women Referred for "Gestational Diabetes" in a Large Canadian Indigenous Community

We examined the referral processes and true diagnostic classifications for diabetes complicating pregnancy in a series of 62 pregnant women consecutively referred to a diabetes education and treatment centre in a large Indigenous community in Alberta, Canada. The referrals were made over a 5-year period (2010 to 2015). The main findings of this analysis were the high frequency (38.7%) of pre-existing type 2 diabetes and previously undiagnosed or unrecognized overt diabetes and the deficiencies in early testing and recognition.

Inappropriate hospital admissions: patient participation in research

Although political interest in reducing the number of inappropriate hospital admissions is mounting, methods for researching the rate of inappropriate admissions have several major limitations. Whereas traditional studies have tended to be predominantly subjective, more recent studies using clinical review instruments also have a number of limitations. Chief among these is the failure to consider the potential input of the individual patient. To illustrate some of the possible benefits of patient participation, this article cites findings from a study in Birmingham, which sought to involve individual older people in a research study into emergency hospital admissions.

Fighting fires?--emergency hospital admission and the concept of prevention

Although the UK's health and social care system has always been geared towards dealing with crises, evidence suggests that this is becoming increasingly the case. Changes in health care and the prioritisation of scarce resources have resulted in a situation where those with low level needs are often left unsupported until they experience a major life crisis. To rectify this situation, the government has introduced a range of policies designed to emphasise the need for preventive work. Against this background, this paper focuses on the issue of emergency hospital admissions, critiquing the research methodologies that have been used to investigate the scope for preventive work in this area. Despite the use of more sophisticated and objective research tools, there is a need to develop new ways of researching emergency admissions which build on the strengths of existing approaches while at the same time incorporating more of a user perspective.