Abstract Background One of the most problematic expression of ageing is frailty, and an approach based on its early identification is mandatory. The Sunfrail-tool (ST), a 9-item questionnaire, is a promising instrument for screening frailty. Aims • To assess the diagnostic accuracy and the construct …

Background Early detection of frail older people is important. Timely intervention may allow health care professionals to prevent or delay the occurrence of adverse outcomes such as disability, increases in health care utilization, and premature death. Objectives We assessed the construct and criterion …