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Characteristics of child participants by race and protocol location (N=553)
| Eligible | Enrolled | |
| Total | 645 | 553 |
| Girls | 324 (50.2) | 285 (51.5) |
| Boys | 321 (49.8) | 268 (48.5) |
| By mother’s race | ||
| Black | 315 | 270 |
| Girls | 160 (50.8) | 133 (49.3) |
| Boys | 155 (49.2) | 137 (50.7) |
| White | 330 | 283 |
| Girls | 163 (49.4) | 151 (53.4) |
| Boys | 163 (49.4) | 131 (46.3) |
| Missing | 4 (0.01) | 1 (0.004) |
