. Author manuscript; available in PMC: 2012 Nov 1.

Published in final edited form as: J Mol Neurosci. 2011 May 17;45(3):330–335. doi: 10.1007/s12031-011-9538-y

Table 2.

Studies of incidence of FTLD

Location	No. of cases	Case definition	Rate per 100,000 per year	95% CI
Rochester, MN (Knopman et al. 2004)^a	4	bvFTD+PPA	4.1 (age range, 40–69)	1.1 to 10.4
Cambridgeshire UK (Mercy et al. 2008)^b	16	bvFTD+PPA	3.5 (age range, 45–64)	2.0 to 5.7
Girona, Spain (Garre-Olmo et al. 2010)^c	14	bvFTD+semantic dementia	2.7 (age range, 45–64)	1.5 to 4.6

All cases between ages 40 and 69 years

1/16 cases < age 45 years. Only ages <65 years were considered

Of 70 cases of bvFTD or semantic dementia, 14 were under age 65 at onset