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Table 3 Braak, Thal, and ApoE status of forty contact sport athletes with post mortem diagnosis of CTE

From: Tau pathology in the medial temporal lobe of athletes with chronic traumatic encephalopathy: a chronic effects of neurotrauma consortium study

CTE stage ApoE ε/ε a % b Braak stages % Thal phases %
II 0 ε2/ε3 (0) 6 0 (55) 9 0 (82)
9 ε3/ε3 (82) 4 I-II (36) 2 1–3 (18)
2 ε3/ε4 (18) 1 III-IV (9) 0 4–5 (0)
3 nac   0  V-VI (0) 3 na  
   3 na    
III 1 ε2/ε3 (25) 2 0 (15) 7 0 (54)
2 ε3/ε3 (50) 2 I-II (15) 4 1–3 (31)
1 ε3/ε4 (25) 7 III-IV (54) 2 4–5 (15)
9 na   2 V-VI (15) 0 na  
   0 na    
IV 0 ε2/ε3 (0) 0 0 (0) 0 0 (0)
6 ε3/ε3 (60) 0 I-II (0) 5 1–3 (56)
4 ε3/ε4 (40) 9 III-IV (100) 4 4–5 (44)
3 na   0 V-VI (0) 4 na  
   4 na    
  1. aapolipoprotein E allele genotype
  2. bpercentage of cases with data
  3. cnot available