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Table 1 Demographic characteristics of the study participants (Total Cohort Year 5)

From: Long-term immunogenicity and safety after a single dose of the quadrivalent meningococcal serogroups A, C, W, and Y tetanus toxoid conjugate vaccine in adolescents and adults: 5-year follow-up of an open, randomized trial

Characteristics Parameter or category ACWY-TT Men-PS
(N = 299) (N = 105)
Age at Year 5 (years) mean age (SD) 23.3 (7.7) 23.6 (8.1)
Age stratum (years) 11–17, n (%) 208 (69.6) 76 (72.4)
  18–55, n (%) 91 (30.4) 29 (27.6)
Gender Female, n (%) 136 (45.5) 52 (49.5)
Race Asian - South East Asian heritage, n (%) 247 (82.6) 86 (81.9)
  White - Arabic/North African heritage, n (%) 52 (17.4) 19 (18.1)
  1. ACWY-TT = group of participants who received one dose of MenACWY-TT at Month 0
  2. Men-PS = group of participants who received one dose of MenACWY-PS at Month 0
  3. N = total number of participants
  4. SD = standard deviation
  5. n (%) = number (percentage) of participants in a given category