Geriatric screening tools are increasingly implemented in daily practice, especially in the oncology
setting, but also in primary care in some countries such as the Netherlands. Nonetheless, validation of these tools
regarding their ability to predict relevant outcomes is lacking. In this study we evaluate if geriatric screening tools
predict decline in functional status and quality of life after one year, in a population of older cancer patients and an
older primary care population without cancer with a life expectancy of at least six months.