Trajectory modelling techniques have been developed to determine subgroups within a
given population and are increasingly used to better understand intra- and inter-individual …

Objective: The aim of this study was to examine the relative frequency of and risk factors for
prolonged opioid prescription (Rx_3–6:≥ 1 opioid prescription of any length between 3 and …

Background and Objective Erenumab is the first migraine-specific preventive therapy approved
by Health Canada since the approval of onabotulinumtoxinA 10 years ago. It is one of …

Background: To better standardize clinical and epidemiological studies about the prevalence,
risk factors, prognosis, impact and treatment of chronic low back pain, a minimum data set …

Methods: This article describes the first tier of the protocol: establishment of the Core Dataset
and Cohort. Adults with acute LBP will be recruited through networks, media, and health …

Introduction Globally every year, millions of patients sustain traumatic injuries and require
acute care surgeries. A high incidence of chronic opioid use (up to 58%) has been …

This study evaluates the construct validity (including sensitivity to change) of the numerical
rating scale (NRS) for pain intensity (I) and unpleasantness (U) and participant pain scale …

Factor-analytic studies of the structure of posttraumatic stress disorder (PTSD) symptoms have
yielded inconsistent results. One of the reasons for the inconsistency may be that PTSD is …

Background The goals of this study were to examine the trajectory of pediatric chronic
postsurgical pain (CPSP) over the first year after surgery and to identify acute postsurgical …

Background Chronic pain affects about 20 % of the Canadian population and can lead to
physical, psychological and social vulnerabilities. However, this condition remains poorly …