• Stephen F Butler, Simon H Budman, Kathrine C Fernandez, Gilbert J Fanciullo, and Robert N Jamison.
• Inflexxion, Inc., Newton, MA 02464, USA.
• J Addict Med. 2009 Jun 1;3(2):66-73.

ObjectivesThe Screener and Opioid Assessment for Patients with Pain - Revised (SOAPP-R) is a self-report questionnaire designed to predict aberrant medication-related behaviors among persons with chronic pain. This measure was developed to complement current risk assessment practices and to improve a clinician's ability to assess a patient's risk for opioid misuse. The aim of this study was to cross-validate the SOAPP-R with a new sample of chronic, non-cancer pain patients.MethodsThree hundred and two participants (N=302) prescribed opioids for pain were recruited from five pain management centers in the U.S. Subjects completed a series of self-report measures and were followed for five months. Patients were rated by their treating physician, had a urine toxicology screen, and were classified on the Aberrant Drug Behavior index.ResultsSeventy-three percent (73.2%) of the subjects (N= 221) were followed and 66 participants repeated the SOAPP-R after one week for test-retest reliability. The reliability and predictive validity, as measured by the area under the curve (AUC), were found to be highly significant (test-retest reliability = .91; coefficient alpha = .86; AUC = .74) and were sufficiently similar to values found with the initial sample. A cut-off score of 18 revealed a sensitivity of .80 and specificity of .52.ConclusionsResults of this cross-validation study suggest that the psychometric parameters of the SOAPP-R are not based solely on the unique characteristics of the initial validation sample. The SOAPP-R is found to be a reliable and valid screening tool for risk of aberrant drug-related behavior among chronic pain patients.

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