In 2016 dementia resulted in about 2.4 million deaths, up from 0.8 million in 1990.The annual incidence of dementia diagnosis is nearly 10 million worldwide. Almost half of new dementia cases occur in Asia, followed by Europe (25%), the Americas (18%) and Africa (8%). The incidence of dementia increases exponentially with age, doubling with every 6.3 year increase in age. Dementia affects 5% of the population older than 65 and 20–40% of those older than 85. Rates are slightly higher in women than men at ages 65 and greater. The disease trajectory is varied and the median time from diagnosis to death depends strongly on age at diagnosis, from 6.7 years for people diagnosed aged 60–69 to 1.9 years for people diagnosed at 90 or older.Dementia impacts not only individuals with dementia, but also their carers and the wider society. Among people aged 60 years and over, dementia is ranked the 9th most burdensome condition according to the 2010 Global Burden of Disease (GBD) estimates. The global costs of dementia was around US$818 billion in 2015, a 35.4% increase from US$604 billion in 2010. Affected ages
About 3% of people between the ages of 65–74 have dementia, 19% between 75 and 84, and nearly half of those over 85 years of age. As more people are living longer, dementia is becoming more common. For people of a specific age, however, it may be becoming less frequent in the developed world, due to a decrease in modifiable risk factors made possible by greater financial and educational resources.
Sojourn may refer to:

Books and periodicals
Sojourn (comics), a CrossGen comic book series
Sojourn (journal), a journal of social and cultural issues in Southeast Asia
Sojourn (novel), the 1991 novel in the Dark Elf Trilogy by R. A. Salvatore
The Sojourn, a 2011 novel by Andrew Krivak

Music
Sojourn (album), a 1977 album by Mickey Tucker
"Sojourn", a song by Natasha Bedingfield from Unwritten
Sojourn Music, an American Christian music group

Other uses
"Sojourn" (American Horror Story), a television episode
Sojourn, a predecessor of TorilMUD, a text-based online role-playing game
Sevoflurane, trade name Sojourn, an inhalational anaesthetic
Sojourn Shelton (born 1994), American football player

See also
Sojourner (disambiguation)