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An Experimental Paradigm for the Prediction of Post-Operative Pain (PPOP)
Published on: January 27, 2010
Development and initial validation of the PEG, a three-item scale assessing pain intensity and interference
Erin E Krebs1, Karl A Lorenz, Matthew J Bair
1Center on Implementing Evidence-Based Practice, Roudebush VA Medical Center, Indianapolis, IN, USA. krebse@iupui.edu
Journal of General Internal Medicine
|May 7, 2009
Summary
A new three-item pain scale (PEG) effectively assesses chronic pain in primary care, offering a brief yet comprehensive alternative to longer measures. This tool demonstrates reliability and validity for improved pain management.
Area of Science:
- Pain research
- Clinical assessment tools
- Primary care medicine
Background:
- Inadequate pain assessment hinders effective pain management.
- Current multidimensional pain measures are often too lengthy for primary care settings.
- A brief, multidimensional tool is needed for efficient chronic pain assessment in primary care.
Purpose of the Study:
- To develop an ultra-brief, three-item pain measure derived from the Brief Pain Inventory (BPI).
- To assess the reliability, validity, and responsiveness of this new measure.
Main Methods:
- Developed a shortened three-item pain scale (PEG) from the BPI.
- Evaluated the scale using data from 500 primary care patients and 646 veterans.
- Assessed reliability, construct validity, and responsiveness.
Main Results:
- The PEG scale demonstrated good reliability (alpha = 0.73-0.89).
- Construct validity was strong, comparable to the BPI (r = 0.60-0.95).
- The PEG was sensitive to change and identified treatment responders.
Conclusions:
- The PEG scale shows strong initial evidence of reliability, validity, and responsiveness.
- It is a practical tool for assessing and monitoring chronic pain in primary care.
- The PEG can improve chronic pain management in primary care settings.
