Table 1. Spearman rank correlation between geometric mean antibody responses and fold range of antibody responses in vaccine trials in infants.
| Vaccine | Immunogen | No. of trials | Spearman rank correlation |
| Pneumonococcal | 1 | 13 | −0.02 |
| 3 | 13 | −0.35 | |
| 4 | 23 | 0.10 | |
| 5 | 13 | 0.08 | |
| 14 | 23 | −0.42* | |
| 18C | 23 | −0.30 | |
| 19F | 23 | 0.20 | |
| 23F | 23 | 0.04 | |
| 6B | 23 | 0.21 | |
| 7F | 13 | 0.24 | |
| 9V | 23 | −0.37* | |
| HiB | PRP | 28 | −0.37 |
| Diphtheria | DT | 30 | −0.11 |
| Pertussis | FHA | 13 | −0.19 |
| Pertactin | 12 | −0.62* | |
| PT | 22 | −0.45* | |
| Hepatitis B | HbS | 13 | −0.44* |
| Tetanus | TT | 20 | −0.04 |
*
P 0.017 to 0.045