Three previous studies provided the estimates of the cost of dementia in Hong Kong. All of them include costs from a societal perspective. According to Wimo et al., (2007; 2010), the estimates of their studies consist of the direct cost and informal care cost. For informal care cost, three options of informal care are used: i) 1.6 hours/day for basic ADLs, ii) 3.7 hours/day for basic ADLs and IADLs, and iii) 7.4 hours/day for basic ADLs, IADLs and supervision. The total cost under option ii) estimated in 2005 and 2009 were HK$11,479 million and HK$15,684 million, respectively. Moreover, the study conducted by Yu et al. (2010), provides the estimates of the cost of dementia in 2010 (HK$12,220 million) and the projected cost in 2036 (HK$31,810 million). It includes hospitalisation costs, institutional (i.e., residential) care costs, and informal care costs in their estimation.

References:

Wimo, A., Winblad, B., & Jönsson, L. (2007). An estimate of the total worldwide societal costs of dementia in 2005. Alzheimer’s & Dementia, 3(2), 81-91. https://doi.org/10.1016/j.jalz.2007.02.001

Wimo, A., Winblad, B., & Jönsson, L. (2010). The worldwide societal costs of dementia: Estimates for 2009. Alzheimer’s & Dementia, 6(2), 98-103. https://doi.org/10.1016/j.jalz.2010.01.010

Yu, R., Chau, P. H., McGhee, S. M., Cheung, W. L., Chan, K. C., Cheung, S. H., & Woo, J. (2010). Dementia Trends: Impact of the Ageing Population and Societal Implications for Hong Kong. In. Hong Kong: The Hong Kong Jockey Club Charities Trust.