The percentage of elderly in the general population is increasing rapidly. Currently, the Dutch population comprises for one fifth of persons aged 65 years or older and recent estimates show this will increase to roughly a quarter in the next 20 years. Since th incidence of peripheral arterial disease increases with age, this rise in elderly will also reflect on the population of patients being referred for vascular surgery. Elderly patients are at higher risk for postoperative complications, mortality or functional decline than younger patients. In frail elderly this effect might be more pronounced. Frailty is an umbrella term that encompasses patient related factors such as weight loss, muscle wasting, inactivity, comorbidities and polypharmacy. Current scoring systems that are used to predict postoperative mortality and complications following vascular surgery perform poorly in the elderly population and do not take into account frailty. Moreover they are designed to predict mortality and complications and are not validated to predict patient reported outcome measures such as quality of life or functional status. The aim of the AGE VASC study is assess the value of frailty factors in predicting an improvement in quality of life one year after peripheral vascular surgery.