Table 3.

Stages of AD‐related neurofibrillary pathology when 25 neuropathologists have assessed immunohistochemically stained sections. The stage assessed by the reference group is given in bold. Abbreviations: ABS% = absolute agreement in percentage, that is, number of evaluation staged equally by the reference group and the 25 participating assessors; AD = Alzheimer's disease.

Case	0	+	I	II	III	IV	V	VI	ABS%*	ABS%†	ABS%‡	ABS%§
1	13	11	1						52	42	42
2	17	8							32
3	3	14	8						32
4	3	16	5	1					20
5	2	16	3	3			1		12	33
6		4	13	7		1			52
7	2	6	12	4		1			48
8		3	5	10	6	1			40		43
9		2	6	12	4	1			48
10		2	6	15	1	1			60	51
11	2		3	17	2		1		68
12			1	12	10	1	1		48
13		4	1	11	6	2	1		44
14			5	8	10	2			40
15			2	5	14	3	1		56			59
16				4	16	4	1		64
17					19	5	1		76	62
18				6	17		2		68		68
19				9	14	2			56
20				9	15		1		60
21				4	19	1	1		76
22					5	19	1		76
23						24	1		96	83
24				1	1	19	4		76
25							18	7	72
26							17	8	68	63
27							12	13	48		81
28							3	22	88
29								25	100	96
30								25	100

^* Percentage for each individual case.

^† †Percentage for all cases within a Braak stage.

^‡ ‡Percentage for cases within transentorhinal, limbic and isocortical stages.

^§ §Percentage for all.