Pain assessment in surgical patients with impaired cognition
Table 1: Pearson Correlation Matrix between the total scores of the Observer Scale, the Abbey Pain Scale and PAINAD (Pain Assessment in Advanced Dementia) in the initial and subsequent assessment
| Initial Assessment | Observer Scale | Abbey Pain Scale |
| Abbey Pain Scale – Initial assessment | 0.678*** | |
| PAINAD – Initial assessment | 0.680*** | 0.842*** |
| Subsequent assessment | ||
| Abbey Pain Scale – Subsequent assessment | 0.582*** | |
| PAINAD – Initial assessment | 0.569*** | 0.684*** |