Table 2 Future estimated nationwide prevalence of dementia according to linear regression analysis (%)
From: Future projections of the prevalence of dementia in Japan: results from the Toyama Dementia Survey
2020 | 2025 | 2030 | 2035 | 2040 | 2045 | |
|---|---|---|---|---|---|---|
Hokkaido | 16.4 | 19.4 | 23.0 | 26.8 | 28.4 | 29.6 |
Aomori | 16.5 | 18.9 | 22.0 | 25.7 | 28.2 | 30.1 |
Iwate | 17.3 | 19.5 | 22.2 | 25.7 | 28.0 | 29.5 |
Miyagi | 16.3 | 18.7 | 21.8 | 25.4 | 27.4 | 28.8 |
Akita | 17.7 | 19.8 | 22.8 | 27.0 | 29.9 | 31.7 |
Yamagata | 17.9 | 19.8 | 22.6 | 26.4 | 29.1 | 30.7 |
Fukushima | 17.0 | 19.1 | 22.0 | 25.8 | 28.5 | 30.5 |
Ibaraki | 15.5 | 18.4 | 22.1 | 25.6 | 27.0 | 28.3 |
Tochigi | 15.5 | 18.0 | 21.6 | 25.2 | 26.7 | 27.9 |
Gunma | 16.1 | 19.1 | 22.8 | 26.0 | 27.0 | 28.2 |
Saitama | 14.7 | 18.5 | 22.4 | 24.8 | 25.0 | 26.1 |
Chiba | 15.1 | 18.8 | 22.7 | 25.3 | 25.5 | 26.6 |
Tokyo | 16.2 | 19.4 | 22.0 | 23.4 | 23.4 | 24.7 |
Kanagawa | 15.8 | 19.5 | 22.8 | 24.8 | 25.1 | 26.5 |
Niigata | 17.3 | 19.8 | 23.0 | 26.6 | 28.5 | 29.7 |
Toyama | 16.9 | 20.0 | 23.9 | 27.3 | 27.6 | 28.4 |
Ishikawa | 16.4 | 19.3 | 23.1 | 26.5 | 27.0 | 28.0 |
Fukui | 17.2 | 19.6 | 22.8 | 26.2 | 27.6 | 29.0 |
Yamanashi | 17.0 | 19.6 | 22.6 | 25.6 | 27.4 | 29.5 |
Nagano | 17.8 | 20.5 | 23.8 | 26.7 | 27.8 | 29.2 |
Gifu | 16.3 | 19.4 | 22.8 | 25.9 | 26.7 | 28.0 |
Shizuoka | 16.4 | 19.5 | 23.1 | 26.1 | 27.3 | 28.8 |
Aichi | 15.5 | 19.0 | 22.4 | 24.7 | 24.8 | 26.0 |
Mie | 16.5 | 19.4 | 22.6 | 25.4 | 26.2 | 27.7 |
Shiga | 15.9 | 18.7 | 22.1 | 25.2 | 25.9 | 27.0 |
Kyoto | 16.3 | 19.9 | 23.8 | 26.7 | 26.7 | 27.7 |
Osaka | 15.7 | 19.7 | 23.4 | 25.5 | 25.2 | 26.3 |
Hyogo | 16.0 | 19.3 | 23.0 | 25.7 | 26.2 | 27.6 |
Nara | 15.9 | 19.4 | 23.4 | 26.6 | 27.5 | 28.9 |
Wakayama | 16.9 | 19.6 | 22.8 | 25.8 | 26.9 | 28.4 |
Tottori | 17.7 | 19.9 | 23.1 | 27.0 | 28.9 | 30.1 |
Shimane | 18.3 | 20.5 | 23.8 | 27.6 | 29.3 | 30.3 |
Okayama | 17.0 | 19.8 | 23.5 | 26.8 | 27.3 | 28.2 |
Hiroshima | 16.6 | 19.7 | 23.6 | 26.8 | 27.3 | 28.2 |
Yamaguchi | 17.1 | 20.0 | 24.0 | 27.7 | 28.7 | 29.4 |
Tokushima | 17.0 | 19.3 | 22.6 | 26.4 | 28.1 | 29.3 |
Kagawa | 16.9 | 19.5 | 23.2 | 26.9 | 27.7 | 28.5 |
Ehime | 17.1 | 19.6 | 23.1 | 26.8 | 28.2 | 29.5 |
Kochi | 17.8 | 20.3 | 23.9 | 27.7 | 29.0 | 30.0 |
Fukuoka | 16.0 | 18.8 | 22.3 | 25.8 | 27.0 | 27.8 |
Saga | 17.0 | 19.1 | 22.1 | 25.9 | 28.3 | 29.6 |
Nagasaki | 17.1 | 19.2 | 22.3 | 26.3 | 28.9 | 30.6 |
Kumamoto | 17.5 | 19.6 | 22.6 | 26.4 | 28.8 | 30.3 |
Oita | 17.2 | 19.8 | 23.4 | 27.4 | 29.2 | 30.2 |
Miyazaki | 17.2 | 19.4 | 22.6 | 26.9 | 29.5 | 30.9 |
Kagoshima | 17.7 | 19.3 | 22.0 | 26.0 | 29.0 | 30.8 |
Okinawa | 16.1 | 17.8 | 20.0 | 23.1 | 25.4 | 27.1 |
National average | 16.7 | 19.4 | 22.7 | 26.1 | 27.4 | 28.7 |