Dementia is a global public health issue; 46.8 million people worldwide are living with dementia and 7.7 million new cases are being diagnosed each year, the majority of which are in middle to low income countries (Prince et al., 2015). Alzheimer’s disease has been the second leading cause of death since 2011 in England and Wales with a similar ranking in Australia (Australian Institute of Health and Welfare, 2012). In the USA death resulting from dementia has risen by 11–15% in 2014 (National Center for Health Statistics, 2015). The cost of dementia is either matching or exceeding other chronic conditions such as cancer, heart disease and stroke (Prince et al., 2015). The total cost of dementia to society in the UK is £26.3 billion, ...