Pain assessment in surgical patients with impaired cognition
Table 5: Wilcoxon test of the subsequent assessments of the 3 scales
| Subsequent assessments | Negative order | Positive order | Z | P |
| Abbey Pain Scale – Observer Scale | 22.71 | 30.98 | -5.498 | 0.000 |
| PAINAD – Observer Scale | 12.55 | 14.85 | -1.532 | 0.125 |
| PAINAD – Abbey Pain Scale | 31.14 | 30.06 | -5.074 | 0.000 |