Samples
chronic pain, pain
CHRONIC PAIN, SECONDARY
Study procedures, which involved exclusively retrospective review of clinical data, were approved by the Institutional Review Board at the Stanford University School of Medicine (IRB No. 28435). All methods were carried out in accordance with relevant guidelines and regulations. Informed consent for the standard care procedure and treatment at our clinic was obtained from all patients and their legal guardian. For the current study, we used data collected using CHOIR. CHOIR (We extracted self-report data from consecutive 21,226 adult patients with mixed etiology of chronic pain seeking treatment at a tertiary pain clinic collected by CHOIR. The data extracted were collected during the period of October 2014 to January 2021 and included responses to the PCS and measures from the PROMIS. Only the initial survey that participants completed was included for the current analysis. The extracted data were randomly divided into two halves to form a The third sample for this study was comprised of data collected for a previously published RCT in which PCS scores were the primary outcome, and other self-reported measures were secondary outcomes