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Studies of prevalence of FTLD
| Location | No. of cases | Case definition | Point estimate per 100,000 in 45–64 year olds | 95% CI |
|---|---|---|---|---|
| Zuid-Holland, Netherlands (Rosso et al. 2003) | 55 | bvFTD only | 4.0 | 2.8 to 5.7 |
| Cambridgeshire, UK (Ratnavalli et al. 2002) | 11 | bvFTD+PPA | 15 | 8.4 to 27.0 |
| London, UK (Harvey et al. 2003) | 18 | bvFTD | 15.4 | 9.1 to 24.3 |
| Brescia, Italy (Borroni et al. 2010) | 213 | bvFTD+PPA | 22 | 17 to 27 |
| Ibaraki, Japan (Ikejima et al. 2009) | 17 | bvFTD only | 2.0 | 1.3 to 3.2 |
