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Participant demographics.
| Group | N | Sex (n) | Caucasian | African American | Other (Asian, Hispanic, interracial) |
|---|---|---|---|---|---|
| Infant | 40 | M (20) | 16 | 4 | 0 |
| (4–23 months) | F (20) | 12 | 6 | 2 | |
| Child | 119 | M (60) | 47 | 11 | 2 |
| (4–9 years) | F (59) | 43 | 12 | 4 | |
| Adolescent | 30 | M (13) | 8 | 0 | 5 |
| (10–19 years) | F (17) | 12 | 3 | 2 | |
| Adult | 81 | M (38) | 14 | 15 | 9 |
| (20 years and older) | F (43) | 15 | 14 | 14 | |
| Total | 270 | M (131) | 167 | 65 | 38 |
| F (139) |
Note. M = male; F = female.
