This is a validation study of a new frailty assessment that can be administered by outpatient care nurses. The nurse directed frailty assessment encompasses the medical, psychological, social, and functional domain, based on standard care, and can be performed without any specialised equipment. Performance of the NDFA is compared to a comprehensive geriatric assessment-based frailty index, with generalised linear model with reporting of hazard ratios and 95% confidence intervals. The best cutoff value for the NDFA was assessed by Youden index and the area under the receiver operator curve.
