Canadian Journal of Public Health-Revue Canadienne De Sante Publique最新文献

Intervention: Health4Life: a school-based eHealth intervention targeting multiple health behaviour change (MHBC).

Research question: Does Health4Life impact secondary outcomes of self-reported intentions regarding six lifestyle behaviours in adolescents (alcohol use, tobacco smoking, screentime, physical activity, discretionary beverage consumption, and sleep)?

Methods: We implemented a cluster randomized controlled trial within secondary schools across three Australian states. Schools were randomly assigned (1:1) to receive either the Health4Life intervention, which consisted of a six-module, web-based program and accompanying smartphone app, or an active control (standard health education). Randomization was stratified by site and school gender composition (using Blockrand in R). All students aged 11-13 years who attended the participating schools and were fluent in English were eligible. Students completed self-report questionnaires at baseline, post-intervention, 12 months, and 24 months. Outcomes were intentions to try alcohol, try tobacco, reduce screentime, engage in physical activity on most or all days, swap discretionary beverages for water, and meet sleep guidelines. Mixed effects models estimated between-group differences in the outcomes over 24 months.

Results: Immediately post-intervention, Health4Life significantly reduced intentions to try alcohol and tobacco and increased intentions for longer sleep and reduced screentime compared to control. Intervention effects on screentime intentions persisted at 12 months but not at 24 months. No lasting effects were observed on intentions for physical activity or discretionary beverage consumption.

Conclusion: Health4Life shows promise in influencing adolescent intentions across various MHBC areas, especially immediately after intervention. However, further investigation is needed to sustain these intention changes beyond short term to facilitate behaviour change.

Setting: Manitoba experiences sexually transmitted and blood-borne infection (STBBI) incidence rates above the national average and fundamental public health sector responses face human resource constraints.

Intervention: Manitoba implemented a paraprofessional role, the Communicable Disease Technician (CD Tech), to complete low-complexity STBBI investigations and support STBBI testing, care engagement initiatives, provider reporting, harm reduction supply distribution, and community engagement. Secondary roles included tuberculosis directly observed treatment (DOT) and virtual DOT, and flu and COVID immunization support. Twenty CD Tech positions were allocated to regional public health teams along with additional Public Health Nurse (PHN) positions to support the role.

Outcomes: Mixed methods were used to evaluate the impact on public health system capacity. Follow-up of chlamydia and gonorrhea case investigations increased from 35% to 98%. Volume of contacts followed by public health increased for chlamydia (114%), gonorrhea (33%), and HIV (68%). Health care provider reporting for cases of STBBI and treatment more than doubled (116%). No significant differences in case investigation data quality were found between CD Techs and PHNs. Qualitative interviews by public health staff (n = 24) found CD Techs highly flexible and competent team members who can fill gaps and expand capacity in direct client service, outreach, administration, data entry, or community/partner engagement.

Implications: Mentorship, ongoing supervision, role clarity, training, and clear practice standards are required to optimize the role. There is potential to expand this innovation and build surge capacity in other areas of public health practice, and other public health jurisdictions.

Objectives: To understand variables associated with support for community water fluoridation among ordinary citizens during periods of heightened issue salience, with a particular focus on how support varies on the basis of demographic characteristics, attitudes toward public health science, and political variables such as ideology, populism, and issue salience.

Methods: Statistical analysis of individual-level data from a large-scale survey of eligible voters in the City of Calgary, Alberta in 2021, collected at the time of a community water fluoridation plebiscite.

Results: Survey data (N = 1130) reveal substantively important and statistically significant relationships with fluoridation support in each of our three analysis categories (demographics, public health expertise, and politics). Support for fluoridation tends to be higher among men, university-educated, higher-income; among those with trust in experts and knowledge of fluoride governance; and among those who consider the issue important and have low levels of populist attitudes. Two exceptions to findings in past studies are age and ideology: younger respondents were more likely than older respondents to support fluoridation in Calgary, as were those on the ideological left, as compared to the right.

Conclusion: Incorporating studies of the correlates of public attitudes related to public health policies is important for understanding public health policy failure and success, especially in instances involving public consultation mechanisms, such as plebiscites.

Objective: Population-based administrative data are valuable for describing human immunodeficiency virus (HIV) cases, and their health status and outcomes. Our objective was to validate algorithms consisting of physician visits, hospitalizations, and antiretroviral prescriptions against positive confirmatory HIV laboratory tests to identify individuals living with HIV.

Methods: The primary validation cohort consisted of adult Manitoban residents with at least 3 years of health coverage between 2007 and 2018. Positive confirmatory HIV tests from the provincial laboratory were the reference standard. We evaluated 15 algorithms requiring 2 or 3 years of administrative data (hospital, physician, and prescription records) to ascertain cases. Seven measures of accuracy were estimated: sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), Youden's J, kappa, and area under the receiver operating characteristic curve (AUC) and their 95% confidence intervals. Validity was estimated for pregnant females.

Results: The primary validation cohort included 966,507 individuals, of whom 1452 (0.2%) were HIV cases. Algorithm sensitivity ranged from 82.8% to 97.5%. PPV ranged from 51.8% to 97.8%. Youden's J ranged from 0.83 to 0.97. Kappa ranged from 0.68 to 0.93. AUC ranged from 0.91 to 0.99.

Conclusion: Researchers have a range of algorithms to ascertain HIV cases in administrative data; selection of an appropriate algorithm depends on the user goal. To maximize performance to distinguish HIV cases and non-cases while minimizing data requirements, an algorithm based on three or more physician visits in 2 years is recommended. Further validation in other provinces and territories will assess the generalizability of these findings.

Objective: This study aimed to examine how Indigenous patients and biomedical healthcare providers understand and experience the Indigenous wellness services at a hospital in the Northwest Territories.

Methods: The qualitative study (May 2018-June 2022) was overseen by a regional Indigenous Community Advisory Committee. Guided by Two-Eyed Seeing and post-colonial theory, the study employed a community-engaged research design, and included two strategies for data generation: (1) interviews with Indigenous Elders, patient advocates, biomedical healthcare providers, policy makers, and hospital administrators (n = 41), and (2) iterative sharing circles with Indigenous Elders (n = 4). Data from the interviews and first sharing circle were transcribed, thematically analyzed, and presented to the sharing circle Elders for validation.

Results: The study revealed three overarching and related themes: (1) Elders and patient advocates emphasized that while the Indigenous wellness services at the hospital play a pivotal role connecting patients with cultural supports, the hospital was still not effectively bringing Indigenous healing practices into hospital care; (2) participants identified that structural factors (i.e., policy and governance decisions) shaped patients' experiences with the wellness services; and (3) participants underscored that deeply rooted forces (i.e., racism, colonialism, and biomedical dominance) inhibit the integration of Indigenous healing practices.

Conclusion: The findings extend understandings of hospital-based Indigenous wellness services by surfacing relationships between deeply rooted forces, organizational structures, and Indigenous patients' experiences. Altogether, they suggest that to advance care for Indigenous patients and improve the integration of Indigenous healing practices, a system-wide transformation is necessary, which includes Indigenous governance at the hospital and a recognition of the value of Indigenous healing practices.

Objectives: We aimed to characterize the burden of post COVID-19 condition (PCC) among adults in Canada and identify factors associated with its occurrence, severity, and resolution.

Methods: We used self-report data from a population-based cross-sectional probability survey of adults in Canada conducted between April and August 2022. Incidence and prevalence of PCC were estimated using confirmed infections, as well as confirmed and suspected combined. Multivariable modeling using confirmed cases identified associated factors.

Results: As of August 2022, 17.2% (95% CI 15.7, 18.8) of adults with confirmed infections and 16.7% (95% CI 15.5, 18.0) of adults with confirmed or suspected infections experienced PCC, translating to 3.3% (95% CI 3.0, 3.6) and 4.4% (95% CI 4.1, 4.8) of all adults, respectively. Age less than 65 years (aORs of 1.75 to 2.14), more pre-existing comorbidities (aORs of 1.75 to 3.57), and a more severe initial infection (aORs of 3.52 to 9.69) were all associated with higher odds of PCC, while male sex at birth (aOR = 0.54, 95% CI 0.41, 0.70), identifying as Black (aOR = 0.23, 95% CI 0.11, 0.51), and being infected after 2020 (aORs of 0.24 to 0.55) were associated with lower odds. Those residing in a rural area (aOR = 2.31, 95% CI 1.35, 3.93), or reporting a disability (aOR = 2.87, 95% CI 1.14, 7.25), pre-existing chronic lung condition (aOR = 5.47, 95% CI 1.85, 16.12) or back problem (aOR = 2.34, 95% CI 1.26, 4.36), or PCC headache (aOR = 2.47, 95% CI 1.60, 3.83) or weakness (aOR = 2.27, 95% CI 1.41, 3.68) had higher odds of greater limitations in daily activities, while males had lower odds (aOR = 0.54, 95% CI 0.34, 0.85). Two or more pre-existing chronic conditions (aHRs from 0.33 to 0.38), or PCC symptoms relating to the heart (aHR = 0.25, 95% CI 0.07, 0.90), brain fog (aHR = 0.44, 95% CI 0.23, 0.86), or stress/anxiety (aHR = 0.48, 95% CI 0.24, 0.96) were associated with a decreased rate of symptom resolution.

Conclusion: Over the first two and a half years of the pandemic, a substantial proportion of infected adults in Canada reported PCC. Females and people with comorbidities were disproportionately impacted.

Objectives: Indigenous peoples have a disproportionately high prevalence of incarceration in the Canadian justice system. However, there is limited Indigenous-driven research examining colonialism and the justice system, specifically associations between racism, externally imposed family disruptions, and history of ever being incarcerated. Therefore, this study examined the association between the proportion of previous incarceration and family disruption, experiences of racism, and victimization for Indigenous adults in London, Thunder Bay, and Toronto, Ontario, Canada. The three communities expressed that they did not want comparison between the communities; rather, they wanted analysis of their community to understand where more supports were needed.

Methods: Indigenous community partners used respondent-driven sampling (RDS) to collect data from First Nations, Inuit, and Métis (FNIM) peoples in London, Thunder Bay, and Toronto. Prevalence estimates, 95% confidence intervals, and relative risk were reported using unweighted Poisson models and RDS-adjusted proportions.

Results: Proportions of ever being incarcerated ranged from 43.0% in London to 54.0% in Toronto and 72.0% in Thunder Bay. In all three cities, history of child protection involvement and experiencing racism was associated with an approximate 25.0% increase in risk for previous incarceration. In Toronto and London, victimization was associated with increased risk for incarceration.

Conclusion: This research highlights disproportionately high prevalence of ever being incarcerated among FNIM living in three Ontario cities. Experiencing racism, family disruption, and victimization are associated with incarceration. Decreasing the rates of family disruption, experiences of racism, and victimization should inform future policy and services to reduce the disproportionately high prevalence of incarceration for FNIM people living in urban settings.

Objective: Fueled by the commercial tobacco industry, commercial tobacco use continues to be the leading preventable cause of premature death in Canada, with opportunities to improve health outcomes. The objective of this research was to work with Indigenous partners to generate Indigenous population prevalence estimates of commercial tobacco use in Toronto, and examine the association between smoking and sociodemographic, cultural, resiliency, and social variables.

Methods: Respondent-driven sampling (RDS) was used to generate prevalence estimates of commercial tobacco use and potentially associated sociodemographic, cultural, resiliency, and social connection variables for Indigenous adults living in Toronto. Statistical analysis examined associations between smoking and variables theorized to be predictors of tobacco use.

Results: The findings indicated that 36.3% (95%CI 28.2-44.5) of the Indigenous population in Toronto do not smoke, and 63.6% (95%CI 55.5-71.7) reported smoking. Univariate analysis of demographic, social, and cultural variables found age and employment to be statistically significantly different between adults who smoked and adults who did not smoke. Indigenous adults who were above the before-tax low-income cut-off (LICO) were more likely to smoke compared to those who were below the before-tax LICO. Indigenous adults who completed high school were more likely to smoke compared to those who did not complete high school, similarly to those who were unemployed compared to those who were employed. However, those who were not in the labour force (student or retired) were less likely to smoke compared to those who were employed. These effects remained after adjustment for age, gender, and LICO. Indigenous adults with stable housing were 20% less likely to smoke compared to those experiencing homelessness. Adults who had at least one close friend or family member to confide in were more likely to smoke compared to those who did not have any close friends or family members. Indigenous adults were more likely to smoke if they participated in Indigenous ceremony compared to those who did not participate.

Conclusion: The Indigenous population in Toronto continues to experience smoking prevalence nearly four times greater than that in the general population. This highlights the need for accurate population data to inform programs and policies and address the social determinants of health.