Janet Curran

This rapid systematic review of evidence asks whether (i) wearing a face mask, (ii) one type of mask over another and (iii) mandatory mask policies can reduce the transmission of SARS-CoV-2 infection, either in community-based or healthcare settings. A search of studies published 1 January 2020–27 January 2023 yielded 5185 unique records. Due to a paucity of randomized controlled trials (RCTs), observational studies were included in the analysis. We analysed 35 studies in community settings (three RCTs and 32 observational) and 40 in healthcare settings (one RCT and 39 observational). Ninety-five per cent of studies included were conducted before highly transmissible Omicron variants emerged. Ninety-one per cent of observational studies were at ‘critical’ risk of bias (ROB) in at least one domain, often failing to separate the effects of masks from concurrent interventions. More studies found that masks ( n = 39/47; 83%) and mask mandates ( n = 16/18; 89%) reduced infection than found no effect ( n = 8/65; 12%) or favoured controls ( n = 1/65; 2%). Seven observational studies found that respirators were more protective than surgical masks, while five found no statistically significant difference between the two mask types. Despite the ROB, and allowing for uncertain and variable efficacy, we conclude that wearing masks, wearing higher quality masks (respirators), and mask mandates generally reduced SARS-CoV-2 transmission in these study populations. This article is part of the theme issue 'The effectiveness of non-pharmaceutical interventions on the COVID-19 pandemic: the evidence'.

Objectives Transition of care can be a complex process that involves multiple providers working together across the pediatric and adult health care system to support youth. The shift from a primarily family-centred approach to a patient-centred approach that emphasizes more personal responsibility for health care management can be challenging for youth, caregivers and providers to navigate. Despite the importance of transition, there is a lack of evidence about the best practices and types of interventions that support the transition of care process from the perspective of both pediatric and adult health care providers. An exploration of barriers and facilitators is a critical first step to identifying important behavioural determinants for designing and implementing evidence-based interventions. As such, the purpose of this study was to identify the barriers and facilitators to the transition of care from the perspective of pediatric and adult health care providers. Methods A qualitative descriptive design was used to conduct semi-structured interviews guided by the COM-B Model of Behaviour – a theoretical model that suggests that for any behaviour to occur there must be a change in one or more of the following domains: capability, opportunity and/or motivation. The study took place in the province of Nova Scotia, Canada and focused on three common conditions: Inflammatory Bowel Disease, Diabetes, and Juvenile Idiopathic Arthritis. Participants were recruited through stratified purposeful and convenience sampling and all interviews were conducted virtually on Zoom. Interviews were audio-recorded, transcribed verbatim and imported into NVivo Qualitative Data Software for analysis. Data were first analyzed using directed content analysis, guided by the COM-B model, then further examined using inductive thematic analysis to identify barriers and facilitators within the three domains. Results In total, 26 health care providers participated in this study (pediatric, n=13, adult n=13) including a mix of adult and pediatric physicians, nurses, and allied health care professionals. The participants identified primarily as female (n=19.73%) and had a range of years of experience (3–39, mean = 14.84). We identified a range of interconnected barriers and facilitators across each of the COM-B Model of Behaviour domains such as, degree of formalized training (capability), facilitation and coordination responsibilities (opportunity), collaboration across providers (opportunities), securing attachment to adult care system (motivation) and time (opportunity). Findings were categorized by three overarching themes: (1) Knowledge and Skills to Support Transition of Care; (2) Navigation Role for Youth and Caregivers; and (3) System Coordination. Conclusions By using the COM-B Model of Behaviour, we identified key barriers and facilitators that intersect to influence the transition of care process. These findings will be used to inform and adapt initiatives and interventions in Nova Scotia to improve the transition experience, as well as may be transferrable to other jurisdictions.