Assessing decision-making capacity: a survey of psychiatrists' knowledge.

We aimed to survey the knowledge of psychiatrists on the assessment of decision-making capacity. Ninety-two psychiatrists of all grades and three other doctors attending a regional conference were marked on their verbal response to the question 'What are the key elements in the assessment of a patient's capacity?' On average, participants mentioned three out of the five elements in testing decision-making capacity. Scores were negatively correlated with age (Pearson's coefficient 0.275, sig 0.007). Section 12 status and grade had no impact on knowledge. Most psychiatrists of all grades have a reasonable knowledge of assessing decision-making capacity. Over a third of participants mentioned two or fewer of the five points, suggesting inadequate knowledge. Assessing decision-making capacity needs to be emphasised in training throughout psychiatrists' careers--not just at the start.