Table 4.

Ancestry profile of the Amazonian riverine individuals according to be apolipoprotein 𝜀4 allele (APOE4) carrier or not.

Ancestry	APOE4-carrier n = 247	APOE4 non-carrier n = 533	p-Value
European (%)	42.4 (32.1–50.4)	42.3 (33.2–51.4)	0.494
Amerindian (%)	33.4 (25.6–43.5)	31.3 (22.0–40.8)	<0.01
African (%)	22.2 (15.8–29.9)	23.2 (16.5–31.7)	0.066

Data are presented as median and interquartile ranges and they were analyzed with the Mann–Whitney test.