A5006341770- COVID-19 epidemiological studies
- Data-Driven Disease Surveillance
- Physical Activity and Health
- Behavioral Health and Interventions
- COVID-19 Digital Contact Tracing
- Misinformation and Its Impacts
- COVID-19 and Mental Health
- Mobile Health and mHealth Applications
- COVID-19 Pandemic Impacts
- Acute Kidney Injury Research
- Cardiac, Anesthesia and Surgical Outcomes
- Public Relations and Crisis Communication
- Zoonotic diseases and public health
- Trauma, Hemostasis, Coagulopathy, Resuscitation
- Consumer Retail Behavior Studies
- Obesity, Physical Activity, Diet
- Urban Transport and Accessibility
- COVID-19 Clinical Research Studies
- Traffic and Road Safety
- Sexuality, Behavior, and Technology
- Historical and modern epidemiology studies
- Older Adults Driving Studies
- Glaucoma and retinal disorders
- Health Policy Implementation Science
- Media Influence and Health
University of Toronto
2020-2025
3M (United States)
2020-2025
Public Health Ontario
2020-2024
Sunnybrook Health Science Centre
2021
Ottawa Hospital Research Institute
2021
Communications Research Centre Canada
2021
Ottawa Hospital
2021
University Health Network
2021
Sunnybrook Research Institute
2021
Women's College Hospital
2021
Abstract Background Governments have implemented population-wide physical distancing measures to control COVID-19, but metrics evaluating their effectiveness are not readily available. Methods We used a publicly available mobility index from popular transit application evaluate the effect of on infection growth rates and reproductive numbers in 40 jurisdictions between March 23 April 12, 2020. Findings A 10% decrease was associated with 14.6% (exp(β) = 0·854; 95% credible interval: 0·835,...
Background Effective communication during a health crisis can ease public concerns and promote the adoption of important risk-mitigating behaviors. Public agencies leaders have served as primary communicators information related to COVID-19, key part their outreach has taken place on social media platforms. Objective This study examined content engagement COVID-19 tweets authored by Canadian decision makers. We propose ways for accounts adjust tweeting practices crises improve risk maximize...
It has been suggested that cardiorespiratory fitness (CRF) may be used to identify those at greatest risk for severe COVID-19 illness. However, no study date examined the association between CRF and COVID-19. The objectives of this were determine whether is independently associated with testing positive or dying from COVID-19.This a prospective cohort 2,690 adults UK Biobank Study followed March 16th, 2020 July 26th, 2020. Participants who tested had undergone assessment examined. was...
Abstract The COVID-19 pandemic has demonstrated the need for real-time, open-access epidemiological information to inform public health decision-making and outbreak control efforts. In Canada, authority healthcare delivery primarily lies at provincial territorial level; however, outset of no definitive pan-Canadian datasets were available. Canada Open Data Working Group was created fill this crucial data gap. As a team volunteer contributors, we collect daily from variety governmental...
The objective of this study was to estimate the impact software and hardware version on Apple Watch activity measurement using data from COVFIT retrospective cohort study. We estimated versions by comparing daily active calories exercise minutes in 7 days before after upgrading watchOS 5 6, 6 7, 8, 8 9 or between two versions. For each transition, we fit mixed effect negative binomial regression models upgrade (a) (b) calories, overall stratified sex, with without adjusting for weekday. also...
Nonpharmaceutical interventions remain the primary means of controlling severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) until vaccination coverage is sufficient to achieve herd immunity. We used anonymized smartphone mobility measures quantify level needed control SARS-CoV-2 (i.e., threshold), and difference relative observed gap).
Background The rapid global emergence of the COVID-19 pandemic in early 2020 created urgent demand for leading indicators to track spread virus and assess consequences public health measures designed limit transmission. Public transit mobility, which has been shown be responsive previous societal disruptions such as disease outbreaks terrorist attacks, emerged an candidate. Methods We conducted a longitudinal ecological study association between mobility reductions transmission using...
Objective. To assess if body mass index (BMI) and high waist circumference (HWC) are associated with testing positive for the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Methods. 9,386 UK Biobank study participants tested SARS-CoV-2 from March 16th 2020 to June 29th were analyzed. A forward model building approach was used estimate adjusted risk ratios (RR) 95% confidence intervals (95% CI). Analyses stratified by age due a significant first-order interaction between HWC....
Abstract Background Among non-pharmaceutical interventions, individual movement restrictions have been among the most impactful methods for controlling COVID-19 case growth. While nighttime curfews to control growth implemented in certain regions and cities, few studies examined their impacts on mobility or incidence. In second wave of COVID-19, Canada’s two largest adjacent provinces lockdown with (Quebec) without (Ontario) a curfew, providing natural experiment study association between...
The Canadian 24-Hour Movement Guidelines for adults provide specific recommendations levels of physical activity, sedentary behavior, and sleep (ie, the movement behaviors) required optimal health. Performance behaviors is associated with improved mental well-being. However, most postsecondary students do not meet behavior within experience increased stress declining well-being, suggesting need an intervention targeting students' behaviors.We aimed to develop implement a theory-informed...
Money laundering is a pervasive legal and economic problem that hides criminal activity. Identifying money priority for both banks governments, thus, machine learning algorithms have emerged as possible strategy to detect suspicious financial activity within institutions. We used traditional regression supervised techniques identify bank customers at an increased risk of committing laundering. Specifically, we assessed whether model performance differed across varying operationalizations the...
Outline geographic disparities in access to language-and gender-concordant ophthalmologic care Canada.
Objective To estimate the effect of (a) COVID-19 pandemic and (b) restriction stringency on daily minutes device-measured moderate-to-vigorous physical activity (MVPA). Design Physical data were collected from INTerventions, Equity, Research Action in Cities Team (INTERACT) cohorts Montreal, Saskatoon Vancouver before (May 2018 to February 2019, ‘phase 1’) during (October 2020 2021, 2’). We estimated two exposures by comparing MVPA measured vs (phase 1 phase 2) at different levels 2....
ABSTRACT Trabeculectomy has a reported success rate of between 67–94%. Many studies have been performed on operative variables which may influence surgical outcome. Youth, pigmented race and anterior segment inflammation shown to be associated with trabeculectomy failure. Little is known the outcome in one eye relation its partner, when surgery standardized above adverse conditions are absent. We therefore carried out prospective study 62 patients who underwent bilateral trabeculectomies....
Abstract Background Non-pharmaceutical interventions remain a primary means of suppressing COVID-19 until vaccination coverage is sufficient to achieve herd immunity. We used anonymized smartphone mobility measures in seven Canadian provinces quantify the level needed suppress (mobility threshold ), and difference relative current levels gap ). Methods conducted longitudinal study weekly incidence from March 15, 2020 January 16, 2021, among with 20 cases at least 10 weeks. The outcome was...
Abstract Background In the fall of 2020, government Ontario, Canada adopted a 5-tier, regional framework public health measures for COVID-19 pandemic. During second wave in urban core Greater Toronto Area (Toronto and Peel) were first regions province to enter highest restriction tier (“lockdown”) on November 23, which closed restaurants in-person dining limited non-essential businesses, including shopping malls, curbside pickup. The peripheral (York, Durham, Halton) would not lockdown until...