Table 1.

Clinical Characteristics of 20 ET Cases and 19 Controls

	ET Cases	Controls	Significance
Age (years)	81.8 ± 7.7	79.4 ± 9.8	p = 0.40 a
Female gender	13 (65.0%)	9 (47.4%)	p = 0.27 b
Tremor duration (years)	43.1 ± 23.2	Not applicable	Not applicable
Postmortem interval (hours)	3.4 ± 3.1	7.7 ± 7.5	p = 0.03 a
Brain weight (grams)	1245.7 ± 136.5	1243.7 ± 122.2	p = 0.40 a
CERAD plaque score			p = 0.43 b
0	10 (50.0%)	13 (68.4%)
A	7 (35.0%)	5 (26.3%)
B	3 (15.0%)	1 (5.3%)
C	0 (0.0%)	0 (0.0%)
Braak AD stage			p = 0.02 b
0	1 (5.0%)	6 (31.6%)
1	7 (35.0%)	7 (36.8%)
2	6 (30.0%)	6 (31.6%)
3	6 (30.0%)	0 (0.0%)
4	0 (0.0%)	0 (0.0%)
5	0 (0.0%)	0 (0.0%)
6	0 (0.0%)	0 (0.0%)
Torpedo count (LH&E)	14.5 ± 14.2	3.0 ± 3.7	p = 0.002 a
Torpedo count (Bielschowsky)	29.3 ± 31.3	6.4 ± 10.4	p = 0.005 a
Purkinje cell count (LH&E)	36.1 ± 8.8	45.5 ± 13.9	p = 0.03 a
Basket cell axonal plexus density	2.2 ± 0.7	1.4 ± 0.6	p = 0.003 c

All values are mean ± standard deviation or number (percentage).

^aStudent’s t test,

^bChi-square or Fisher’s Exact test,

^cMann-Whitney test