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. 2013 Sep 26;8(9):e76598. doi: 10.1371/journal.pone.0076598

Table 3. Semi-quantitative analysis of AD cases double-stained with ubiquilin 2 and AT8.

Number of cells AT8 positive AT8 negative z p value AT8 positive
Sum (case 2-8)
Ubiquilin 2 low 109 227 12.28 0.00045784 Decrease
Ubiquilin high 87 110
Case 2
Ubiquilin 2 low 14 30 34.10 5.2351E-09 Decrease
Ubiquilin high 26 10
Case 3
Ubiquilin 2 low 29 22 0.10 0.75363717 ns
Ubiquilin high 15 13
Case 4
Ubiquilin 2 low 11 44 0.00 1 ns
Ubiquilin high 4 18
Case 5
Ubiquilin 2 low 9 33 3.49 0.06190065 ns
Ubiquilin high 11 18
Case 6
Ubiquilin 2 low 36 32 31.50 1.9944E-08 Increase
Ubiquilin high 6 43
Case 7
Ubiquilin 2 low 4 40 48.43 3.4171E-12 Decrease
Ubiquilin high 14 7
Case 8
Ubiquilin 2 low 6 26 106.25 6.4996E-25 Decrease
Ubiquilin high 11 1

Ubiquilin 2 low indicates number of cells with low or no ubiquilin 2 staining, and ubiquilin 2 high indicates number of cells with high ubiquilin 2 staining. Frequency distributions were compared between cells with AT8 staining (AT8 positive) and without AT8 staining (AT8 negative) using a chi-square test. The right column indicates a significant decrease or increase of the number of ubiquilin 2 low cells in the AT8 positive group. ns, non significant.