Table 1. Demographic characteristics of the study subjects, by treatment groups.
| Batch 1 | Batch 2 | Batch 3 | Placebo | |
|---|---|---|---|---|
| Immunogenicity analysis cohort | n = 1139 | n = 1153 | n = 1138 | n = 3441 |
| Age (month) | 17.4 (8.1) | 17.5 (7.9) | 17.5 (7.9) | 17.6 (8.0) |
| Boy | 671 (58.9) | 677 (58.7) | 641 (56.3) | 1876 (54.5) |
| Height (cm) | 80.6 (8.2) | 80.7 (8.1) | 80.8 (8.1) | 80.8 (8.1) |
| Weight (kg) | 12.2 (2.2) | 12.3 (2.2) | 12.2 (2.2) | 12.2 (2.2) |
| BMI (kg/m2) | 18.8 (2.4) | 18.9 (2.6) | 18.8 (2.5) | 18.7 (2.3) |
| Safety analysis cohort | n = 1199 | n = 1230 | n = 1200 | n = 3631 |
| Age (month) | 17.4 (8.0) | 17.4 (7.9) | 17.5 (7.9) | 17.4 (8.0) |
| Boy | 704 (58.7) | 725 (58.9) | 675 (56.3) | 1990 (54.8) |
| Height (cm) | 80.5 (8.2) | 80.6 (8.0) | 80.7 (8.1) | 80.7 (8.1) |
| Weight (kg) | 12.2 (2.2) | 12.2 (2.2) | 12.2 (2.2) | 12.2 (2.2) |
| BMI (kg/m2) | 18.8 (2.4) | 18.9 (2.7) | 18.8 (2.5) | 18.7 (2.3) |
Data are mean (SD), and number (%). N, number of subjects; SD, standard deviation; BMI, body mass index.