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. Author manuscript; available in PMC: 2018 Sep 1.
Published in final edited form as: Brain Lang. 2017 May 31;172:22–29. doi: 10.1016/j.bandl.2017.04.008

Table 1.

Baseline demographic characteristics.

Baseline Diagnosis CN SMC EMCI LMCI AD
No. of Subjects 365 94 280 511 310
Male/Female 192/173 40/54 160/120 317/194 175/135
Baseline Years of Age (SD) 74.6 (5.6) 71.8 (5.7) 71.1 (7.4) 73.5 (7.7) 74.7 (7.8)
Baseline Years of Education (SD) 16.3 (2.6) 16.8 (2.6) 16.1 (2.7) 16 (2.9) 15.2 (3)
Right/Left Handed 338/27 82/12 251/29 457/54 286/24
APOE (ε4−/ε4+) 266/99 62/32 160/120 231/280 105/205
Lang. Comp. Mean (SD)* 0.6 (0.6) 0.56 (0.5) 0.32 (0.7) −0.14 (0.9) −0.94 (1.2)

CN = cognitively normal; SMC = significant memory concern; EMCI = early mild cognitive impairment; LMCI = late mild cognitive impairment; AD = Alzheimer’s disease; SD = standard deviation

*

Not adjusted for memory composite score.