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. Author manuscript; available in PMC: 2021 Jan 20.
Published in final edited form as: J Alzheimers Dis. 2020;76(2):539–551. doi: 10.3233/JAD-191192

Table 5.

Number of individual male and female twins diagnosed with All Dementia, AD only, and Non-AD Dementia out of the total number of individual twins with available APOE ε4 data.

All Dementia AD Only Non-AD Dementia
Case/Total Age at onset (SD) Case/Total Age at onset (SD) Case/Total Age at onset (SD)
Male 333/697 78.85 (7.60) 165/529 79.43 (7.41) 168/532 78.29 (7.77)
187/697 79.08 (7.98) 87/529 80.01 (8.16) 100/532 78.28 (7.77)
124/697 79.08 (7.03) 65/529 79.87 (5.84) 59/532 78.20 (8.11)
22/697 75.66 (7.00) 13/529 73.35 (6.84) 9/532 79.00 (6.10)
Female 584/1043 80.35 (8.17) 377/836 79.81 (8.11) 207/666 81.33 (8.19)
347/1043 81.78 (7.86) 211/836 81.41 (7.82) 136/666 82.35 (7.90)
200/1043 78.79 (8.22) 144/836 77.99 (8.20) 56/666 80.86 (7.98)
37/1043 75.34 (7.34) 22/836 76.36 (6.91) 15/666 73.83 (7.93)
Total Cases 917/1740 79.81 (8.00) 542/1365 79.69 (7.90) 375/1198 79.97 (8.14)