TABLE 1

Demographic characteristics for the evaluable immunogenicity population

CharacteristicAge groupTotal (n = 322)
50–64 yr (n = 161)≥65 yr (n = 161)
Sex (%)
    Female59.052.255.6
    Male41.047.844.4
Race/ethnicity (%)
    White100.0100.0100.0
    Hispanic/Latino100.0100.0100.0
Age at vaccination (yr)
    Mean (SD)55.8 (4.0)73.4 (5.8)64.6 (10.1)
    Median55.172.664.9
    Range50.0–64.765.1–92.250.0–92.2