Table 1.
Participant characteristics for LTFU-study participants at the start (vaccination Dose 1) of the base study.
| Females | Males | |
|---|---|---|
| (N = 971) | (N = 301) | |
| Age, years | ||
| 9–12, n (%) | 653 (67.3) | 207 (68.8) |
| 13–15, n (%) | 318 (32.7) | 94 (31.2) |
| Mean (SD) | 11.6 (1.9) | 11.5 (1.8) |
| Median (range) | 11.0 (9–15) | 11.0 (9–15) |
| Race, n (%) | ||
| American Indian or Alaskan Native | 2 (0.2) | 1 (0.3) |
| Asian | 222 (22.9) | 74 (24.6) |
| Black or African American | 129 (13.3) | 31 (10.3) |
| Multi-racial | 204 (21.0) | 114 (37.9) |
| Native Hawaiian or other Pacific Islander | 0 (0.0) | 3 (1.0) |
| White | 414 (42.6) | 78 (25.9) |
| Weight, kg | ||
| Mean (SD) | 45.0 (12.9) | 44.1 (13.3) |
| Median (range) | 44.0 (18.0–115.7) | 41.0 (15.4–87.0) |
| BMI | ||
| Participants with data, n | 970 | 301 |
| Mean (SD), kg/m2 | 19.8 (4.1) | 19.6 (4.0) |
| Median (range), kg/m2 | 19.1 (10.5–55.6) | 18.5 (11.1–43.0) |
| Region, n (%) | ||
| Africa | 79 (8.1) | 28 (9.3) |
| Asia-Pacific | 222 (22.9) | 74 (24.6) |
| Europe | 256 (26.4) | 27 (9.0) |
| Latin America | 297 (30.6) | 122 (40.5) |
| North America | 117 (12.0) | 50 (16.6) |
Abbreviations: BMI = body mass index; LTFU = long-term follow-up; SD = standard deviation.