Table 2.
ID | Age at evaluation (y) | Psychomotor developmentb | IQ score | IQ testing toold |
---|---|---|---|---|
1 | 2.2 | Normal | NA | DDST |
2 | 3.8 | Mild retardation | NA | DDST |
3 | 5.3 | Normal | 108 | K-ABC |
4 | 6.1 | Normal | 106 | K-ABC |
5 | 6.5 | Normal | 116 | K-ABC |
6 | 7.1 | Normal | 108 | Kramer |
7 | 7.5 | Normal | 99 | K-ABC |
8 | 8.4 | Learning disability | 90 | K-ABC |
9 | 10.7 | Learning disability | 99 | K-ABC |
10 | 10.9 | Mild retardation | 67 | K-ABC |
11a | 11.5 | Normal | NA | NA |
12 | 11.6 | Normal | 118 | K-ABC |
13 | 14.2 | Learning disability | 85 | HAWIK-III |
14 | 15.4 | Normal | 116 | HAWIE-R |
15a | 16.5 | Learning disability | 93/94c, tested at age 8.5 y | CPM/CMMS |
16 | 19 | Normal | 119 | HAWIE-R |
17a | 20 | Normal | 101/91c, tested at age 11.6 y | SON/SPM |
18a | 20 | Normal, speech retardation at age 3.7 y | NA | NA |
19 | 24.4 | Normal | 122 | HAWIE-R |
20 | 25.3 | Severe retardation | 51/45c, tested at age 6.8 y | HAWIK/Kramer |
Information is provided for a total number of 20 patients (one death at 13 days of life).
ID = identification number, IQ = intelligence quotient, NA = not available, y = years
a Patient not participating in study step II.
b According to medical records/questionnaire and, in case of participation in study step II, clinical investigation.
c IQ testing not performed at study step II; information on IQ available from medical records/questionnaire only.
d CMMS = Columbia Mental Maturity Scale (Mean ± SD: 100 ± 16), CPM = Raven's Coloured Progressive Matrices (Mean ± SD: 100 ± 15), DDST = Denver Developmental Screening test, HAWIE-R = Wechsler Adult Intelligence Scale-Revised (Mean ± SD: 100 ± 15), HAWIK = Wechsler Intelligence Scale for Children (Mean ± SD: 100 ± 15), HAWIK-III = Wechsler Intelligence Scale for Children Version III (Mean ± SD: 100 ± 15), K-ABC = Kaufman Assessment Battery for Children (Mean ± SD: 100 ± 15), Kramer = Kramer IQ test (Mean ± SD: 100 ± 15), NA = not available, SPM = Raven's Standard Progressive Matrices (Mean ± SD: 100 ± 15), SON = Snijders-Oomen Nichtverbaler Intelligenztest-R 51/2-17 (Mean ± SD: 114 ± 14).