Measuring the burden of psychiatric illness on the family: an evaluation of some rating scales.

The gradual shift towards non-institutional treatment for severe and chronic psychiatric illnesses has been accompanied by a recognition of potentially harmful effects ('burden') upon the patient's caregivers. This paper aims to provide a framework for the development of further research into the burden of 'community care' by offering a clear definition of the burden concept, an exposition of the criteria for evaluating rating scales to measure the concept, a review of major rating scales of burden, and some suggestions for improvements in methodology which are urgently required.