[A multi-centre study of the reliability, validity and sensitivity to change of the honos65+ in psychiatry for older persons].

Background: Within the mental health care services for older persons there is a growing need for insight into and evaluation of the results of clinical treatment. The Health of the Nations Outcome Scales 65+ (honos65+) is a promising instrument for the assessment of mental, social and physical health in older persons, but it is not yet known whether it is valid for older persons in the Netherlands.

Aim: To assess the reliability, validity and sensibility to change of the honos65+ when applied to older persons with psychiatric disorders.