Table 3.

Protective Effect of APOE Variants Against HEV Infection in Non-Hispanic Blacks^* in the NHANES III, 1991–1994

Variant	Allele Frequency† (%)	OR (95% CI)	P
Non-Hispanic whites
APOE ε2	8.3	1 (reference)
APOE ε3	76.0	0.9 (0.7–1.2)	0.99
APOE ε4	15.7	0.9 (0.6–1.6)	0.99
Non-Hispanic blacks
APOE ε2	10.1	1 (reference)
APOE ε3	67.9	0.6 (0.4–0.8)	0.001
APOE ε4	22.0	0.5 (0.4–0.7)	0.00004
Mexican Americans
APOE ε2	3.3	1 (reference)
APOE ε3	85.7	0.9 (0.6–1.5)	0.99
APOE ε4	11.0	0.8 (0.5–1.6)	0.99

^*Logistic regression analysis within each race/ethnicity group.

^†Frequencies adjusted using NHANES III genetic sample weight.