Patients Response to Interventional Care for Chronic Pain Study (PRICS): A Cross-Sectional Survey of Community-Based Pain Clinics in Ontario, Canada.

Background: Non-image guided injection treatments ("nerve blocks") are commonly provided in community pain clinics in Ontario for chronic non-cancer pain (CNCP) but remain controversial.

Aim: We explored patients' perspectives of nerve blocks for CNCP.

Methods: We administered a 33-item cross-sectional survey to patients living with CNCP pain attending four community-based pain clinics in Ontario, Canada.

A prospective observational study of problematic oral cannabinoid use.

Background: Despite evidence supporting the benefits of cannabinoids for symptom control across a wide range of medical conditions, concerns have been raised regarding the potential misuse and/or problematic use of cannabinoids (CBs).

Objective: The first objective of this study was to examine the incidence of problematic prescription cannabinoid use (PPCBU) over a 12-month period among patients initiating cannabinoid therapy. The second objective was to examine the factors associated with PPCBU.

Opioids, pain and addiction - practical strategies.

1. Addiction can occur with the repeated exposure of a biogenetically predisposed person to an addictive substance or behaviour. 2.

The prevalence of chronic pain in Canada.

Background: While chronic pain appears to be relatively common, published population prevalence estimates have been highly variable, partly due to differences in the definition of chronic pain and in survey methodologies.

Objectives: To estimate the prevalence of chronic pain in Canada using clear case definitions and a validated survey instrument.

Methods: A telephone survey was administered to a representative sample of adults from across Canada using the same screening questionnaire that had been used in a recent large, multicountry study conducted in Europe.