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Pain assessment in surgical patients with impaired cognition

Table 3: Wilcoxon test of the initial assessments of the 3 scales

Initial assessments Negative order Positive order Z p
Abbey Pain Scale – Observer Scale 33.96 35.67 -1.739 0.082
PAINAD – Observer Scale 27.82 34.24 -2.719 0.007
PAINAD – Abbey Pain Scale 32.06 38.39 -1.268 0.205
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