From a Guardian article on a new theory about the aetiology of Alzheimer disease:
It is thought that this year one person every three minutes will develop dementia.
It’s hard to explain statistics in a way that they feel real to people, but is “one person every three minutes” really a useful way to think about a disease that develops gradually over many years, as opposed to, say, muggings? Perhaps they meant to say “one person every three minutes will be diagnosed with dementia”.
Common Infirmities 