Table 2.

Patient characteristics of SMC individuals from the ADNI study

	N = 149	$\rho$ (p value)
Amyloid-$\beta$ positivity (%)	59 (35%)
APOE $\epsilon 4$		0.2670 (0.0004)
0 Copy	109 (64.50%)
1 Copy	54 (31.95%)
2 Copies	6 (3.55%)
Age	71.85 (6.11)	0.2255 (0.0032)
Edu	16.83 (2.54)	0.0136 (0.8606)
Sex	99 (58.58%)	$-0.1370$ (0.0756)
Hispanic	6 (3.55%)	$-0.0064$ (0.9347)
Race		$-0.0927$ (0.2306)
Whites	152 (89.94%)
African American	10 (5.92%)
Other	7 (4.14%)
Marry status		0.1435 (0.0627)
Married	123 (72.78%)
Never married	10 (5.92%)
Divorced	18 (10.65 %)
Widowed	18 (10.65%)
ADAS-cog13	10.40 (4.53)	0.01239 (0.8734)
MoCA	25.93 (2.65)	$-0.07430$ (0.3370)
CDR-SB	0.06 (0.17)	0.02516 (0.7454)
MMSE	29.07 (1.17)	$-0.05532$ (0.4750)

The last column is the Pearson correlation coefficient between each feature and the outcome (Amyloid-$\beta$)