Multivariable analysis: influence of age in days at completion of primary immunisations, IgG response (μg/ml) to primary immunisations, and age (days) at receipt of fourth dose on IgG response to a fourth dose of Hib
| Age at third dose | IgG after third dose | Age at fourth dose | |
|---|---|---|---|
| 95% CI, 95% confidence interval. | |||
| % Change in IgG titre per unit change in variable | +0.1% | +71.6% | +0.4% |
| 95% CI | −0.8% to +1.0% | +35.2% to +100% | −0.02% to +0.9% |
| p Value | 0.77 | < 0.001 | 0.061 |