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. 2024 Apr 30;20(1):2342630. doi: 10.1080/21645515.2024.2342630

Table 3.

GMCs of anti-PRP antibodies post-primary, pre-booster, and post-booster by country. (per protocol set).

  Germany
Italy
Spain
  N GMC (95% CI)
µg/mL
N GMC (95% CI)
µg/mL
N GMC (95% CI)
µg/mL
Post-primary
Ih group 58 0.5 (0.4–0.8) 8 0.2 (0.1–0.8) 147 0.5 (0.4–0.7)
Va group 66 6.9 (4.7–10.2) 8 19.6 (10.0–38.5) 156 13.5 (10.8–16.7)
Pre-booster
Ih group 61 0.2 (0.1–0.2) 7 0.1 (0.0–0.4) 138 0.3 (0.2–0.3)
Va group 67 1.4 (0.9–2.0) 10 3.2 (1.7–6.0) 139 2.1 (1.7–2.6)
Post-booster
Ih group 62 7.5 (5.2–10.6) 8 4.1 (1.1–16.0) 141 15.6 (12.8–19.1)
Va group 67 8.1 (5.6–11.8) 10 31.8 (16.8–60.2) 141 15.1 (12.2–18.7)

The per protocol set includes all study participants who received all study vaccinations and complied with all study related interventions and conditions as defined in the study protocol.

Ih group: study participants receiving DTPa HBV IPV/Hib vaccine; Va group: study participants receiving DTaP5 HB IPV Hib vaccine.

CI, confidence interval; GMC, geometric mean concentration; N, number of participants with available results; PRP, polyribosylribitol phosphate.