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Table 1 Subject Demographics in the Antibody Persistence Phase and the MenACWY-TT Booster Phase

From: A phase 2b/3b MenACWY-TT study of long-term antibody persistence after primary vaccination and immunogenicity and safety of a booster dose in individuals aged 11 through 55 years

Demographic

Antibody Persistence Phase

MenACWY-TT Booster Phase

Primary

MenACWY-TT

Primary

MenACWY-PS

Primary

MenACWY-TT

Primary

MenACWY-PS

Total enrolled cohort, n

235

76

164

56

Sex, n (%)

 Male

127 (54.0)

36 (47.4)

93 (56.7)

29 (51.8)

 Female

108 (46.0)

40 (52.6)

71 (43.3)

27 (48.2)

Age at enrollment, y

 Mean ± SD

25.3 ± 8.2

25.2 ± 8.4

26.8 ± 7.9

27.4 ± 8.7

 Median (range)

22.0 (18–60)

22.0 (18–55)

24.0 (21–63)

24.5 (21–56)

Race, n (%)

 Asian/Southeast Asian

235 (100)

76 (100)

164 (100)

56 (100)

  1. MenACWY meningococcal A, C, W, Y, PS polysaccharide, SD standard deviation, TT tetanus toxoid
  2. The antibody persistence phase was for years 7–10 after the primary MenACWY-TT or MenACWY-PS vaccination