Table 2.
Anti-HBs seroprotection rates (SR) and geometric mean concentrations (GMC) by subgroup of preterm infants after primary course and booster dose (ATP cohort for immunogenicity).
| Seroprotection | GMC | |||||
|---|---|---|---|---|---|---|
| Gestational age (weeks) | N | n | % | 95% CI | mIU/ml | 95% CI |
| Primary course | ||||||
| 34–36 | 27 | 25 | 92.6 | 75.7–99.1 | 955.9 | 461.1–1981.8 |
| 31–33 | 24 | 20 | 83.3 | 62.6–95.3 | 418.0 | 153.7–1136.4 |
| 28–30 | 20 | 20 | 100 | 83.2–100 | 1044.5 | 633.9–1721 |
| 24–27 | 20 | 20 | 100 | 83.2–100 | 364.8 | 184.5–721.5 |
|
| ||||||
| Booster dose | ||||||
| 34–36 | 24 | 22 | 91.7 | 73.0–99.0 | 2389.1 | 919.4–6207.9 |
| 31–33 | 23 | 18 | 78.3 | 56.3–92.5 | 1127.2 | 262.2–4845.2 |
| 28–30 | 18 | 18 | 100 | 81.5–100 | 3555.9 | 1881.1–6721.8 |
| 24–27 | 18 | 18 | 100 | 81.5–100 | 1054.0 | 508.6–2184.2 |