In surveys of patients with chronic pain, pain intensity is described as a critically important dimension of the pain experience and a crucial target of pain treatments (Turk et al., 2008). Moreover, panels of pain experts have suggested that “For most clinical trials of chronic pain treatments, a measure of pain intensity will provide the primary outcome measure.”
The International Association for the Study of Pain and ICD diagnoses of chronic pain use a minimum 3-
month threshold for establishing chronicity. For clinical trials
of treatments for chronic pain, IMMPACT recommends a 6-month minimum for pain duration, which we apply for this instrument.
The Patient Health Questionnaire-2 (PHQ-2) is a widely used, patient-reported, 2-item screening measure for depression.
The Alcohol Disorders Identification Test-Concise (AUDIT-C) is a brief alcohol use disorder screening instrument that reliably identifies individuals who are at risk for alcohol use disorder (including alcohol abuse or dependence).
The PEG is a brief, convenient, patient-reported pain outcome measure that is derived from the Brief Pain Inventory.