Hepatitis B Response of Premature Infants after Primary and Booster Immunisation with a Diphtheria-Tetanus-Acellular Pertussis-Hepatitis B-Inactivated Poliovirus/Haemophilus Influenzae Type B Vaccine

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