Table 3.

Demographics of the subjects from the EMIF 500 study.

Variable	EMIF 500 subjects grouped by CSF Aβ42
	Low CSF Aβ42	High CSF Aβ42	P-value
N	198	294	/
Age (years)	66.21 ± 9.73	69.76 ± 8.81	<0.001∗
Female gender N (%)	112 (57)	167 (57)	0.959
AD N (%)	9 (5.6)	152 (94.4)	/
MCI N (%)	116 (49.6)	118 (50.4)	/
CTL N (%)	73 (75.3)	24 (24.7)	/
APOE genotype 𝜀4+ N (%)	43 (22)	147 (50)	<0.001∗

MCI, mild cognitive impairment; APOE, apolipoprotein E. Mean ± SD. ^∗Statistically significant.