Background: The Withdrawal Assessment Tool-1 (WAT-1) has been validated for assessing iatrogenic withdrawal syndrome in critically ill children receiving mechanical ventilation, but little is known about this syndrome in critically ill adults.
Objective: To evaluate the validity and reliability of the WAT-1 in critically ill adults.
Methods: A prospective, observational, open-cohort pilot study of critically ill adults receiving mechanical ventilation and regular administration of opioids for at least 72 hours.