Table 1. Characteristics of first grade children from Kwajalein Atoll included in the 2016–2017 national seroprevalence study of HBV infection, by infection status.
| Characteristic | All children (n = 298) n(%) |
Seropositive (n = 1) n(%) |
Seronegative (n = 297) n(%) |
|---|---|---|---|
| Age (years) | |||
| 6 | 177 (59.4) | 1 (100) | 176 (59.3) |
| 7 | 101 (33.9) | 0 (0) | 101 (34.0) |
| 8 | 20 (6.7) | 0 (0) | 20 (6.7) |
| Sex | |||
| Male | 170 (57.0) | 0 (0) | 170 (57.2) |
| Female | 128 (43.0) | 1 (100) | 127 (42.6) |
| Residence | |||
| Ebeye | 261 (87.6) | 1 (100) | 260 (87.5) |
| Carlos | 4 (1.3) | 0 (0) | 4 (1.3) |
| Ebadon | 4 (1.3) | 0 (0) | 4 (1.3) |
| Mejatto | 8 (2.7) | 0 (0) | 8 (2.7) |
| Santo | 21 (7.0) | 0 (0) | 21 (7.0) |
| Place of birth | |||
| Hospitala | 270 (90.6) | 1 (100) | 269 (90.6) |
| Primary care facilityb | 26 (8.7) | 0 (0) | 26 (8.8) |
| Home | 2 (0.7) | 0 (0) | 2 (0.7) |
| HBV vaccination | |||
| Timely birth dose < 24 hours | 269 (90.3) | 1 (100) | 268 (90.2) |
| Birth dose given at > 24 hours | 29 (9.7) | 0 (0) | 29 (9.8) |
| Third dose at < 6 months | 173 (58.1) | 1 (100) | 172 (57.9) |
| Third dose at > 6 months | 125 (41.9) | 0 (0) | 125 (42.1) |
HBV: hepatitis B virus.
Analysis of statistical significance was not done due to insufficient numbers of seropositive children.
a Includes those born in hospitals outside Kwajalein Atoll such as Majuro Hospital.
b Includes all dispensaries outside Ebeye.