The Impact of HIV on B Cell Compartment and Its Implications for COVID-19 Vaccinations in People with HIV.

HIV causes intense polyclonal activation of B cells, resulting in increased numbers of spontaneously antibody-secreting cells in the circulation and hypergammaglobulinemia. It is accompanied by significant perturbations in various B cell subsets, such as increased frequencies of immature/transitional B cells, activated memory B cells, atypical memory B cells, short-lived plasmablasts and regulatory B cells, as well as by decreased frequencies of resting memory and resting naïve B cells. Furthermore, both memory and antigen-inexperienced naïve B cells show exhausted and immune-senescent phenotypes.

Intraosseous and intravenous vascular access during adult cardiac arrest: a systematic review and meta-analysis.

Objective: To summarise evidence on the clinical effectiveness of initial vascular attempts via the intraosseous route compared to the intravenous route in adult cardiac arrest.

Methods: We searched MEDLINE and Embase (OVID platform), the Cochrane library, and the International Clinical Trials Registry Platform from inception to September 4 2024 for randomised clinical trials comparing the intraosseous route with the intravenous route in adult cardiac arrest. Our primary outcome was 30-day survival.

Association between emergency medical services' response times, low socioeconomic status, and poorer outcomes in out-of-hospital cardiac arrest: the MEDIC multicenter retrospective cohort study for disparities in access to prehospital critical care in the Paris metropolitan area.

Background And Importance: Prolonged emergency medical services' response times (EMS-RT) are associated with poorer outcomes in out-of-hospital cardiac arrest (OHCA). The patient access time interval (PATI), from vehicle stop until contact with patient, may be increased in areas with low socioeconomic status (SES).

Objectives: The objective of this study is to identify predictors of prolonged EMS-RT intervals, and to evaluate associations with clinical outcomes in OHCAs occurring in the largest metropolitan area in France.

"It's Just Good Science": A Qualitative Study Exploring Equity, Diversity and Inclusion in Canadian Arthritis Research.

Objective: Despite knowledge that health outcomes vary according to patient characteristics, identity, and geography, including underrepresented populations in arthritis research remains a challenge. We conducted interviews to explore how researchers in arthritis have used equity, diversity, and inclusion (EDI) principles to inform their research.

Methods: Semi-structured interviews were conducted with individuals who 1) have experience conducting arthritis research studies; 2) reside in and/or conduct their research in Canada; and 3) speak English or French.

Developing standards for the implementation of stepped care in child and youth mental health service settings: protocol for a multi-method, delphi-based study.

Introduction: Canadian youth mental health (YMH) systems have the potential to urgently tackle the mental health treatment gap currently impacting young people, and stepped care (SC) is one model that can address this need. The adoption of SC models can guide the development of better-connected YMH systems by simplifying transitions and care pathways. To do so requires robust standards that are co-created across stakeholder groups, including with lived experience experts, to ensure the effective implementation of SC models.

The misclassification of depression and anxiety disorders in the multiple sclerosis prodrome: A probabilistic bias analysis.

Background: Studies suggest that depression/anxiety form part of the multiple sclerosis (MS) prodrome. However, several biases have not been addressed. We re-examined this association after correcting for: (i) misclassification of individuals not seeking healthcare, (ii) differential surveillance of depression/anxiety in the health system, and (iii) misclassified person-time from using the date of the first MS-related diagnostic claim (i.

Adverse changes in close social ties in aging women and men: A population-based longitudinal study of the CLSA (2011-2021).

Close social ties are important for health but these can decline as people age. Moreover, losses of close social ties may be worse for women, older age and low socioeconomic groups. We characterized alterations in both marital status or living arrangement over 6 years by gender, and assessed patterns by age, country of origin, geographic location, education, wealth, and household income.

"There was no services that I could access so I just stayed on the street…using until I went into labour.": A qualitative study of accessibility and cultural safety of services for perinatal substance use in British Columbia, Canada.

Background: Perinatal substance use is a critical public health challenge, impacting both mother and fetus. Its prevalence has increased in British Columbia, Canada, disproportionately impacting First Nations people. For specialized perinatal substance use services to be effective, they must be accessible and safe.

Perspectives on Long-Term Follow-Up among Living Kidney Donors.

Key Points: In a survey of 685 previous living kidney donors, donors wanted lifelong annual follow-up with a primary care provider. Living donors wanted information on clinical and laboratory assessment and health reassurance. Donors also wanted access to specialized care in the event of hospitalization or change in health.

Response shift results of quantitative research using patient-reported outcome measures: a meta-regression analysis.

Purpose: Our objectives were to identify characteristics of response shift studies using patient-reported outcomes (PROMs) that explain variability in (1) the detection and (2) the magnitude of response shift effects.

Methods: We conducted a systematic review of quantitative studies published before June 2023. First, two-level multivariable logistic regression models (effect- and sample-levels) were used to explain variability in the probability of finding a response shift effect.

Gender and Social Connections as Determinants of Hypertension: A Systematic Review of Longitudinal Studies.

Background: Social connections impact cardiovascular diseases (CVD) morbidity and mortality, but their role in hypertension, as a CVD risk factor, and their gender inequities is less understood. This review aimed to examine the longitudinal evidence on the impact of changes in social connections on risk of hypertension among aging adults, with a specific focus on gender.

Methods: A systematic search of peer-reviewed literature in Medline, Embase, Scopus, and CINAHL conducted until 10 June 2024.

Patterns of social support among older adults with cancer and associations with patient-reported outcomes: A latent class analysis.

Introduction: Social support can play an important role in the care of older adults living with cancer. However, different patterns of social support, such as emotional, instrumental, informational, appraisal, and giving support need to be considered to facilitate adjustments to cancer. This study aimed to explore the distinct patterns of social support among older adults with cancer and examine the socio-demographic variables and patient-reported outcomes that may be associated with patterns of social support.

Predictors of cost-related medication nonadherence in Canada: a repeated cross-sectional analysis of the Canadian Community Health Survey.

Background: In Canada, many patients face substantial out-of-pocket costs for prescription medication, which may affect their ability to take their medications as prescribed. We sought to conduct a comprehensive analysis of the burden and predictors of cost-related nonadherence in Canada.

Methods: Using pooled data from the 2015, 2016, 2018, 2019, and 2020 iterations of the Canadian Community Health Survey, we calculated weighted population estimates of the burden of cost-related nonadherence in the preceding 12 months and used logistic regression models to measure the association of 15 demographic, health, and health system predictors of cost-related nonadherence overall and stratified by sex.

Sex differences in COVID-19 vaccine confidence in people living with HIV in Canada.

Background: Understanding the roots of vaccine confidence in vulnerable populations, such as persons living with HIV (PLWH), is important to facilitate vaccine uptake, thus mitigating infection and spread of vaccine-preventable infectious diseases. In an online survey of PLWH conducted in Canada during winter 2022 (), we reported that the overall COVID-19 vaccination uptake rate in PLWH was similar by sex. Here, we examined attitudes and beliefs towards vaccination against COVID-19 based on sex.

Community versus academic hospital community-acquired pneumonia patients: a nested cohort study.

Background: Most Canadians receive their care in community hospitals, yet most clinical research is conducted in academic hospitals. This study aims to compare patients with community acquired pneumonia (CAP) treated in academic and community hospitals with respect to their demographics, clinical characteristics, treatments and outcomes.

Methods: This nested observational cohort substudy of the Community Acquired Pneumonia: Toward InnoVAtive Treatment (CAPTIVATE) trial included 1,329 hospitalized adults with CAP recruited between March 1st, 2018 and September 31st, 2023 from 15 Canadian hospitals.

Multiple recommended health behaviors among medical students in Western Canada: a descriptive study of self-reported knowledge, adherence, barriers, and time use.

Background: General medical practitioners are responsible for promoting and prescribing lifestyle modification and serve as role models for healthy behaviors. We aimed to assess self-reported knowledge, adherence, barriers and time spent on all recommended health behaviors among medical students.

Methods: A cross-sectional online survey of eight behavioral domains among undergraduate medical students in The University of British Columbia, Canada, was analysed using descriptive statistics and visual display.

The relationship between race and emergency medical services resuscitation intensity for those in refractory-arrest.

Background: Previous studies have reported race-based health disparities in North America. It is unknown if emergency medical service (EMS) treatment of out-of-hospital cardiac arrest (OHCA) varies based on race. We sought to compare markers of resuscitation intensity among different racial groups.

The Making of Confident Surgeons: Why and How?

Low self-confidence in surgical residents can be associated with poor self-efficacy and perceptions of sub-optimal preparedness for practice at graduation. The influence of social and biologic determinants of confidence deserves further study. Through a randomized controlled trial of procedure-specific didactic and low fidelity simulation training for vaginal surgery, we showed positive correlations between self-confidence and objective performance in the real operating room for three different surgical procedures and through validated scales.

Using journey maps to understand patientreported outcome measures in the cancer journey.

Purpose: The purpose of this qualitative study is to demonstrate the use of patient-reported outcome measure-based journey maps in facilitating clinicians' ability to communicate with patients about their well-being at each phase of their cancer journey.

Methods: Individual semi-structured online and phone interviews were conducted with older adults in British Columbia, Canada. Participants (n = 6) were asked to describe their cancer experiences associated with their well-being score using the Edmonton Symptom Assessment System revised questionnaire throughout their cancer journey (i.

Healthcare utilization among COVID-19 mRNA vaccine-associated myocarditis cases: a matched retrospective cohort study.

Objectives: We evaluated all-cause healthcare utilization among those with vaccine-associated myocarditis, compared to vaccinees without postvaccination myocarditis.

Methods: We conducted a retrospective cohort study in individuals aged 12 and older who received COVID-19 mRNA vaccination in British Columbia. Exposure was defined as an ED visit or hospitalization for myocarditis within 21 days postvaccination.