- Asthma and respiratory diseases
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Air Quality and Health Impacts
- Climate Change and Health Impacts
- Food Allergy and Anaphylaxis Research
- Pediatric health and respiratory diseases
- Eosinophilic Esophagitis
- Travel-related health issues
- Global Public Health Policies and Epidemiology
- Neonatal Respiratory Health Research
- Respiratory and Cough-Related Research
- Health, psychology, and well-being
- Health Literacy and Information Accessibility
- School Health and Nursing Education
- Pregnancy and Medication Impact
- Healthcare Policy and Management
- Energy and Environment Impacts
- Reproductive System and Pregnancy
- Emergency and Acute Care Studies
- Delphi Technique in Research
- Smoking Behavior and Cessation
- Air Quality Monitoring and Forecasting
- Child Nutrition and Feeding Issues
- Noise Effects and Management
- Mental Health Treatment and Access
University of Toronto
2015-2022
Hospital for Sick Children
2014-2019
Institute for Clinical Evaluative Sciences
2014-2019
SickKids Foundation
2014-2019
Public Health Ontario
2015-2017
Howard University
2017
Individuals with asthma-chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS), have more rapid decline in lung function, frequent exacerbations, and poorer quality of life than those asthma or COPD alone. Air pollution exposure is a known risk factor for COPD; however, its role ACOS not as well understood.To determine if individuals exposed to higher levels air an increased ACOS.Individuals who resided Ontario, Canada, aged 18 years older 1996 incident between 2009...
Individuals with asthma are more likely to die from chronic conditions than the general population. Measuring only mortality listed as primary cause of death may lead an underestimation total mortality.To examine patterns in population over 10 years, including (asthma-specific mortality) and a secondary, contributing (asthma-contributing mortality).Health administrative data Ontario, Canada were used identify rates subjects 0 99 years age. Mortality calculated 1999 2008. Total was estimated...
Objectives The objective of this study was to use health administrative and environmental data quantify the effects ambient air pollution on service among those with chronic diseases. We hypothesised that would be higher more exposure as measured by Air Quality Health Index (AQHI). Setting used at primary (physician office visits) secondary (emergency department visits, hospitalisations) level care in Ontario, Canada. Participants included individuals who resided Canada, from 2003 2010, were...
Recent research suggests that the asthma epidemic observed in 1980s and 1990s has stabilized. Changing trends may have an impact on well-reported global phenomenon of "asthma September peak." The 38th week year been identified as peak time for exacerbations among children.The purposes this study were to examine longitudinal trend see if it changed over time, differed by age groups, or varied across different geographical regions.Monthly rates emergency department (ED) physician outpatient...
Daily use of inhaled corticosteroids is a widely recommended treatment for mild persistent asthma in children. There concern that, similar to systemic corticosteroids, may have adverse effects on bone health.To determine whether there an increased risk fracture associated with corticosteroid children asthma.In this population-based nested case-control study, we used health administrative databases identify cohort aged 2 18 years physician diagnosis between April 1, 2003, and March 31, 2014,...
Previous research has shown variations in quality of care and patient outcomes under different primary models. The objective this study was to use previously validated, evidence-based performance indicators measure asthma over time compare between models.Data were obtained for years 2006 2010 from the Ontario Asthma Surveillance Information System, which uses health administrative databases track individuals with living province Ontario, Canada. Individuals (n=1,813,922) divided into groups...
Women with asthma are at a high risk of developing chronic obstructive pulmonary disease (COPD) or and COPD overlap syndrome (ACOS) as they age, which is condition associated mortality rate, low quality life, healthcare costs. However, factors influencing the development ACOS remain unclear.To quantify in women Ontario identify that increased risk.Data for who participated Canadian National Breast Screening Study from 1980 to 1985 were linked health administrative databases, participants...
Objective: High frequency health service use (HSU) is associated with poorly controlled asthma, and a recognized risk factor for near-fatal or fatal asthma. The objective of this study was to describe the HSU in year prior asthma death. Methods: Individuals aged 0–99 years who died from April 1996 December 2011 Ontario, Canada were identified as cases. Cases matched 4–5 live controls by age, sex, rural/urban residence, socioeconomic status, duration co-diagnosis COPD. records death...
To identify distinctive patterns of respiratory-related health services use (HSU) between birth and 3 years age, to examine associated symptom risk profiles.This study included 729 mother child pairs enrolled in the Toronto site Canadian Healthy Infant Longitudinal Development 2009-2012; they were linked Ontario administrative databases (2009-2016). A model-based cluster analysis was performed distinct groups children who followed a similar pattern HSU regarding hospitalization, emergency...
Methods Exposure data (temperature, humidity and air pollution) were obtained from Environment Canada for years 2003 to 2010. Using ArcGIS, the geospatial patterns of exposures described regions Ontario hosting Pan Am events. A linear trend was used forecast expected in July 2015. Health outcomes (hospitalizations, emergency department visits outpatient claims) all-cause morbidity, asthma, asthma-related conditions, diabetes hypertension measured using provided by Institute Clinical...
Approximately 7% of children live with food allergy, a condition that requires dietary avoidance to prevent an allergic reaction. In this qualitative study, we aimed understand allergy-related experiences, beliefs and learning preferences among without allergies, inform school-based, allergy education program. Data were analysed thematically. We virtually interviewed in Kindergarten-Grade 8 Manitoba, Canada, (n = 7) 9) parent-reported, physician-diagnosed allergies. identified three themes:...
During pregnancy, females with asthma may be at higher risk of exacerbation. The objective this study was to determine whether in Ontario, Canada have increased health services utilisation (HSU) during pregnancy. Rates asthma-specific, asthma-related and non-pregnancy-related HSU were calculated a population-based cohort pregnant asthma. Poisson regression repeated measures used adjusted rate ratios 95% confidence intervals 1 year after compared the before consisted 103 976 Compared prior...
Methods PM2.5 and temperature measurements were obtained from satellite data for all of Ontario [2]. Physician office visits stratified into two groups based on the literature: air pollution-sensitive (acute respiratory infections, allergic rhinitis, asthma, bronchiolitis, diabetes, otitis media) pollution-insensitive (gastroenteritis, injuries). Claims every month in 2010 health administrative databases children 0-14 years age. Ageand sex-standardized morbidity ratios (SMRs) calculated by...