TABLE I.
Demographic Features
| Total (N = 74) | Prenatal (N = 44) | Postnatal (N = 30) | P | |
|---|---|---|---|---|
| Mean age at evaluation (SD) | 8.8 years (sd 6.3) | 7.7 years (sd 5.9) | 10.3 years (sd 6.6) | 0.07 |
| Age range | 6 months–24 years | 6 months–20 years | 9 months–24 years | |
| Age group at evaluation | ||||
| 6 months–5 years | n = 34 | n = 24 | n = 10 | |
| 6–12 years | n = 18 | n = 10 | n = 8 | |
| 13–24 years | n = 22 | n = 10 | 12 | |
| School age to adult subseta mean age | 12.3 years (sd 5.1) n = 45 | 11.5 years (sd 5.3) n = 23 | 13.0 years (sd 5.1) n = 22 | 0.33 |
| Mean age cognitive testing | 12.1 years (sd 4.3) n = 37 | 11.9 years (sd 4.9) n = 18 | 12.3 years (sd 3.8) n = 19 | 0.83 |
| Mean age adaptive testing | 9.6 years (sd 6.2) n = 46 | 8.7 years (sd 6.2) n = 26 | 10.5 years (sd 6.1) n = 20 | 0.31 |
| Race | ||||
| %White | 87.8% | 86.4% | 93.4% | 0.46 |
| %Asian | 8.1% | 9.1% | 3.3% | |
| %Black or African American | 4.1% | 4.5% | 3.3% | |
| Ethnicity | ||||
| %Hispanic or Latino | 6.8% | 4.5% | 10% | 0.39 |
| %Not Hispanic or Latino | 93.2% | 95.5% | 90% | |
| Mean SES scoreb | 51.0 (sd 10.1) | 52.5 (sd 9.8) | 48.4 (sd 10.2) | 0.14 |
| Recruitment source | ||||
| %Research-only | 54.1% (n = 40) | 59.1% | 46.7% | 0.35 |
| %Clinical | 45.9% (n = 34) | 40.1% | 53.3% | |
a
School age to adult subset defined as participants age 5 years or older.
b
SES score defined as score on 2 Factor Hollingshead Score.