Table 2.

Number of Cases for Different Genetic Biomarker Data in MHAS by Wave of Collection

MHAS Wave	Genome-Wide Genetic Data (blood)	Genome-Wide Genetic Data (saliva)	APOE Genotype Data	Ancestry
	n = 2 623	n = 7 218	n = 8 600	n = 7 156
In study*
MHAS 2012, n (%)	1 912 (73)		1 951 (22.7)	845 (11.8)
Mex-Cog 2016, n (%)	711 (27)		733 (8.5)	401 (5.6)
MHAS 2018—saliva, n (%)		7 218 (100)	5 916(68.8)	5 910(82.6)

Notes: Please note that there is an overlap of genome-wide genetic data obtained from blood and saliva. APOE = apolipoprotein-E; MHAS = Mexican Health and Aging Study.

^*For 2012 and 2016, genome-wide genetic data results come from EDTA tubes.