A cautionary note on the use of perceived pain scores in health outcomes research
by Sean M. Murphy, Robert Rosenman, Daniel L. Friesner, Janet Raisor
International Journal of Behavioural and Healthcare Research (IJBHR), Vol. 2, No. 2, 2010

Abstract: In this paper, we apply recent advances in discrete choice modelling to characterise what patient-specific characteristics influence intervention effectiveness when effectiveness is measured by a reduction in perceived pain. Our analysis goes beyond previous studies by examining whether misclassifying patient responses influences the outcomes of such analyses. Using data from several outpatient rehabilitation sites on patients with back injuries, we find that the scores are misclassified. We also find evidence suggesting that distributional misspecification may bias parameter and misclassification probability estimates.

Online publication date: Mon, 20-Dec-2010

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