• Deborah B McGuire, Joanne Reifsnyder, Karen Soeken, Karen S Kaiser, and Katherine A Yeager.
• University of Maryland School of Nursing , Baltimore, MD 21201, USA. dmcguire@son.umaryland.edu
• J Palliat Med. 2011 Mar 1; 14 (3): 287-92.

BackgroundAccurate assessment in hospice patients who cannot communicate their pain is almost impossible, increasing their risk for unrecognized and inadequately managed pain.ObjectiveThe purpose of this article is to describe a series of small-scale projects aimed at developing and refining an instrument to assess acute pain in noncommunicative hospice patients.MethodsProject 1 was a clinical project in which focus groups with hospice nurses yielded an adaptation of an existing pain assessment measure that was named the Multidimensional Objective Pain Assessment Tool (MOPAT) and had behavioral and physiological subscales. Projects 2 and 3 tested the MOPAT in 30 cognitively impaired/nonresponsive hospice inpatients and 28 alert and oriented hospice inpatients, with study nurses and hospice nurses rating pain with the MOPAT before and after a pain-relieving intervention and rating its clinical usefulness. Projects 3 and 4 analyzed the reliability, validity, and clinical utility of the MOPAT.ResultsOverall internal consistency reliability of the MOPAT was demonstrated with Cronbach's α coefficients of 0.79 before and 0.84 after the pain-relieving intervention. The behavioral and physiological subscale scores changed significantly (p < .035) after pain medication, demonstrating sensitivity to changes in pain. Principal components factor analysis revealed two factors matching the subscales and accounting for 66% of the variance. Nearly all the hospice nurses found the MOPAT helpful, easy to use and understand, and conducive to use in daily practice.ConclusionThe MOPAT has preliminary evidence of reliability, validity, and clinical utility. Full-scale psychometric testing in hospice and acute care hospital patients is currently underway.

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