One of the two transverse dimensions in LIDEM is health inequality. The existing societal health inequality refers to systematic differences in the state of health between citizens of society and it entails high and rising costs for treatment and care which have major consequences for the individual. Furthermore, living with dementia can be characterised by inequality in access to public services and an active social life compared to other citizens. In addition, the extent of unequal access may by, among other things, conditional upon the geographical residence of life with dementia in either cities or in rural areas There is a need for more knowledge on how health inequality influences the area of dementia to answer the pressing question if there is an unequal access to services, active social life and support for people living with dementia. Therefore, health inequality is a transverse dimension in all research preformed in LIDEM.