Table 1.

Late Onset Caribbean Hispanics family sample characteristics

	67 Families	Additional 215 Families
Families, n	67	215
Subjects, n	469	591
Affection status, n (%)
Affected	354 (75.5)	434(73.4)
Average (SD) of affected individuals per family	5.1 (1.8)	2.1 (0.8)
Unaffected	114 (24.3)	156(26.4)
Average (SD) of unaffected individuals per family	2.2 (1.5)	1.5 (0.9)
Unknown	1 (0.2)	1(0.2)
Females, n(%)	276 (5.9)	385(65.1)
Age at onset of affecteds, mean (SD)	74 (9.6)	74.1(9.5)
Age at last examination of unaffecteds, mean (SD)	68 (9.7)	69.6(8.3)
APOE allele frequency, n (%)
ε4	165 (17.6)	309(26.1)
ε3	735 (78.4)	821(69.5)
ε2	38 (4.0)	52(4.4)