“…Many factors may account for these differences. One being, there is no consistency in definition of an 'older person', mental ill-health such as depression and anxiety (NHS England, 2017), and that adults over the age of 55 account for over half of total health spending (Sawyer, & Claxton, 2019), coupled with population demographics shifting to older ages (Phelan, & Larson, 2002) as well as calls from the British Psychiatric Society and researchers alike to increase and improve the mental health services available for older adults (Burns, 2015;Abdul-Hamid, Lewis-Cole, Holloway, & Silverman, 2015;Royal College of Psychiatrists, 2018), it is increasingly important to understand the mental health needs of this population, and their desire to be involved with SDM given the benefits that implementing this method could bring (Slade, 2017).…”