Table 2.

APOE ε4 data and baseline diagnoses of the subjects. The baseline diagnosis depends on the number of APOE ε4alleles (chi-squared test p < 0.001).

	Mean ADAS score at baseline	ADAS score std at baseline	No APOE ε4	APOE ε4 heterozygotes	APOE ε4 homozygotes	Σ
NC	9.4	4.3	311	106	11	428
MCI	16.6	6.8	381	290	80	751
AD	29.8	8.0	94	130	58	282
Σ	—	—	786	526	149	1461