Pre-immunisation IgG geometric mean concentrations to vaccine antigens for preterm infants and their association with gestational age at birth
| Antibody | IgG GMC | Percentage increase per week of gestational age at birth | p Value |
|---|---|---|---|
| Values in parentheses are 95% confidence intervals. | |||
| GMC, Geometric concentration; FHA, filamentous haemagglutinin; PRN, pertactin; PT, pertussis toxin. | |||
| Diphtheria | 0.015 (0.013 to 0.019) | 7.5 (3.4 to 1.5) | <0.001 |
| Tetanus | 0.17 (0.14 to 0.22) | 11.5 (7.4 to 15.7) | <0.001 |
| FHA | 2.35 (1.99 to 2.77) | 8.1 (4.7 to 11.3) | <0.001 |
| PRN | 1.75 (1.44 to 2.12) | 5.9 (2.0 to 9.8) | 0.004 |
| PT | 1.51 (1.25 to 1.83) | 9.7 (6.1 to 13.4) | <0.001 |