Table 1.

Cohort data

Braak stage	n	Average age of death in years (range)	Male (%)	Female (%)	Normal (%)	MCI (%)	Dementia (%)*
0	71	71.2 (51–104)	48 (7.5)	23 (3.5)	58 (8.9)	7 (1.0)	6 (0.9)
I	142	78.1 (53–108)	88 (13.6)	54 (8.3)	99 (15.3)	17 (2.6)	22 (3.4)
II	189	84.1 (51–107)	98 (15.1)	91 (14.0)	126 (19.4)	40 (6.1)	21 (3.2)
III	152	88.8 (68–105)	59 (9.1)	93 (14.8)	96 (14.8)	29 (4.4)	26 (4.0)
IV	93	91.2 (67–106)	29 (4.4)	64 (9.8)	50 (7.7)	22 (3.4)	21 (3.2)
Total (647)	647	83.5 (51–108)	322 (49.7)	325 (50.2)	429 (66.3)	115 (17.7)	96 (14.8)

^*7 samples did not have cognative status available, MCI mild cognitive impairment