Dementia develops slowly and insidiously and causes cognitive impairment. The diagnosis is pivotal for relevant treatment and care. However, 50,000 people are estimated to have undiagnosed dementia in Denmark, while 36,000 are diagnosed.

The municipalities offers a home visit to the population at the ages of 75 and 80 years to assess the need of care and prevent sickness. These home visits are well established and might offer an unused opportunity to detect cognitive impairment and dementia.