175 years have elapsed since John Hutchinson introduced the world to his version of an
apparatus that had been in development for nearly two centuries, the spirometer. Though he …

Rationale: Current evidence on the relationship between long-term exposure to air pollution
and new onset of chronic lung disease is inconclusive. Objectives: To examine associations …

Background: People with a recent history of homelessness are believed to be at high risk of
infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and, when …

Metal components in fine particulate matter (PM2. 5) from nontailpipe emissions may play an
important role in underlying the adverse respiratory effects of PM2. 5. We investigated the …

Importance Intraoperative anesthesiology care is crucial to high-quality surgical care. The
clinical expertise and experience of anesthesiologists may decrease the risk of adverse …

BACKGROUND: New case-mix tools from the Canadian Institute for Health Information offer
a novel way of exploring the prevalence of chronic disease and multimorbidity using …

Objectives To determine if bilateral salpingo-oophorectomy, compared with ovarian
conservation, is associated with all cause or cause specific death in women undergoing …

Background An important strategy to address the opioid overdose epidemic involves
identifying people at elevated risk of overdose, particularly those with opioid use disorder …

Purpose To determine the spirometric-based prevalence of COPD across different regions in
Canada and to evaluate the site heterogeneity of risk factors. Patients and Methods In this …

Aims Echocardiography is commonly used in hip fracture patients to evaluate perioperative
cardiac risk. However, echocardiography that delays surgical repair may be harmful. The …