The number of deaths from dementia in Northern Ireland hit a new high of 1,400 last year.
People are living longer but more are suffering slow decline from conditions like Alzheimer's disease, official statistics showed.
The overall death rate today is 40% lower than in the early 1980s.
Northern Ireland Statistics and Research Agency senior statistician David Marshall said: "This improvement has led to an ageing population. One consequence is that we are now seeing more deaths due to Alzheimer's disease and other forms of dementia."
Other deaths included:
• Cancer (4,100), circulatory disease (4,000) and respiratory disease (2,000) continue to be the main causes.
• There were 100 deaths of centenarians.