TABLE 1.

Demographic characteristics of vaccinated subjectsa

CharacteristicNo. (%) for group
V710 5 μg (n = 31)V710 30 μg (n = 28)V710 90 μg (n = 34)Placebo (n = 31)
Gender
    Male18 (58)7 (25)18 (53)13 (42)
    Female13 (42)21 (75)16 (47)18 (58)
Age (yr)b
    18-2910 (32)5 (18)8 (24)10 (32)
    30-397 (23)8 (29)12 (35)5 (16)
    40-4911 (36)8 (29)11 (32)11 (36)
    50-553 (10)7 (25)3 (9)5 (16)
Race or ethnicity
    White18 (58)19 (68)26 (77)21 (68)
    Black9 (29)8 (29)4 (12)4 (13)
    Asian3 (10)0 (0)1 (3)3 (10)
    Hispanic1 (3)1 (4)2 (6)0 (0)
    Native American0 (0)0 (0)0 (0)2 (7)
    Multiracial0 (0)0 (0)1 (3)1 (3)
  • a All randomized subjects received vaccine or placebo.

  • b Enrollment was stratified in stage B by ages of <40 and ≥40 years.