Abstract
The world population is aging; the United Nations reported that 8.2% was aged ≥65 years in 2015, and this is expected to increase to 15.9% by 2050 [1]. Pilleron et al. [2] estimated that in 2012, 47.5% of all new cancers globally were in older adults aged 65 and over and that this will increase to 67% by 2035 with the fastest increases in less developed parts of the world. The older adult population is the most heterogeneous in terms of health and functional status compared to other age groups [3–5].
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