Sunnybrook Hospital

Variable Selection for the Propensity Score Model: Beyond Main Effects and Linear Relations

ABSTRACT Propensity score methods are frequently used to estimate treatment effects in observational studies. The propensity score is usually estimated using a logistic regression model with additive and linear effects. The limited literature on variable selection for the propens...

Trends in Dispensing of Opioids and Benzodiazepines Among Older Adults Admitted for an Acute Hip Fracture Between 2008 and 2024 in Ontario, Canada

INTRODUCTION: Opioids and benzodiazepines (BZDs) are commonly prescribed for managing pain, anxiety, and sleep-related problems following a hip fracture. Both opioids and BZDs carry risks of persistent dependence, falls, and mortality with long-term use. Despite these risks, Cana...

Development and Validation of a Tool to Measure Documented Health Care Encounter Time

Importance Time toxicity, defined as the time patients spend receiving cancer treatment and interacting with health care systems, is an emerging treatment-related burden. Existing studies typically quantify time toxicity using health care contact days, which may inadequately capt...

Conceptualizations of compassion in the context of dementia caregiving: A scoping review protocol

Background Compassion is widely recognized as a vital component of dementia caregiving, yet its conceptualization, definition, and operationalization remain inconsistent across contexts. In dementia caregiving, compassion is often conflated with empathy, emotional labor, and rela...

The Impact of the Number and the Size of Clusters on Prediction Performance of the Stratified and the Conditional Shared Gamma Frailty Cox Proportional Hazards Models

ABSTRACT Researchers in biomedical research often analyze data that are subject to clustering. Development and validation of risk prediction models generally assumes independence of observations. For survival outcomes, the Cox proportional hazards (PH) regression model is commonl...

Considerations for optimal team-based rheumatology care: a qualitative study exploring the experiences of rheumatology health professionals

Interdisciplinary team-based rheumatology care models are a promising solution for improving access to high quality, equitable care for people with rheumatic and musculoskeletal disorders. There is limited understanding on health professionals’ perspectives on their needs to deli...

Team-Based Outpatient Rheumatology Care: A Scoping Review of Terminology, Team Composition, and Impact on Advancing the Quintuple Aim

Objectives Team-based models of rheumatology care, in which rheumatologists and interdisciplinary healthcare professionals (IHPs) collaborate in care delivery, are increasingly recognized to improve outcomes across all domains of the Quintuple Aim (population health, patient expe...