The Critical care Pain Observation Tool is reliable in non-agitated but not in agitated intubated patients

Discriminant and criterion validity, confirmatory factor analysis and internal reliability showed good validity and reliability in the critical care pain observation tool in all groups except agitated patients. The results showed that, in general, the CPOT has good version of the critical care pain observation tool has good psychometric properties to evaluate pain in non-verbal patients admitted to intensive care units who have a RASS score ranging from −3 to +1, but it is not a good tool to evaluate pain in patients who are agitated according to RASS.