TABLE 3.
Antigen | Result | Antibody responses at indicated age | ||
---|---|---|---|---|
7 months (n=324) | 18 months (n=301) | 19 months (n=301) | ||
Diphtheria | GMC, IU/mL | 0.29 | 0.05 | 4.13 |
95% CI | 0.22–0.38 | 0.04–0.06 | 3.58–4.76 | |
% ≥0.01 IU/mL | 100 | 92.0 | 100 | |
% ≥0.10 IU/mL | 78.7 | 27.2 | 100 | |
Tetanus* | GMC, EU/mL | 2.86 | 0.53 | 10.1 |
95% CI | 2.62–3.14 | 0.48–0.59 | 9.33–11.0 | |
% ≥0.01 EU/mL | 100 | 99.3 | 100 | |
% ≥0.10 EU/mL | 99.7 | 96.7 | 100 | |
Polio type 1 | GMT, titre–1 | 713 | 110 | 8025 |
95% CI | 526–723 | 97–137 | 6649–9160 | |
% titre–1 ≥8 | 100 | 94.1 | 100 | |
Polio type 2 | GMT, titre–1 | 2520 | 306 | 19,451 |
95% CI | 2026–2800 | 256–377 | 15,052–20,486 | |
% titre–1 ≥8 | 100 | 99.0 | 100 | |
Polio type 3 | GMT, titre–1 | 1458 | 143 | 13,613 |
95% CI | 1079–1485 | 115–172 | 10,305–14,962 | |
% titre–1 ≥8 | 100 | 94.2 | 100 |
Tetanus antitoxin values standardized for change in ELISA assay between seven and 18 months by multiplying seven-month values by 2.62. DTaP-IPV-Hib Diphtheria, tetanus and acellular pertussis, inactivated polio vaccine and Haemophilus influenzae type b;
GMC Geometric mean antibody concentration;
GMT Geometric mean antibody titre