Table 2. Full-scale IQ and the four index scores of SRS and control groups.
| SRS group | Control group (N = 19) | |||
|---|---|---|---|---|
| Total group | 11p15 LOM group | UPD(7)mat group | ||
| (N = 19) | (N = 16) | (N = 3) | ||
| Full-Scale IQ | ||||
| Mean (SD) | 101.63 (17.36) | 101.75 (18.08) | 101.00 (16.09) | 107.89 (10.75) |
| Range | 71–127 | 71–127 | 86–118 | 92–128 |
| VCI | ||||
| Mean (SD) | 113.16 (17.37) | 114.44 (17.66) | 106.33 (17.10) | 114.89 (11.22) |
| Range | 79–139 | 79–139 | 95–126 | 94–135 |
| PIQ | ||||
| Mean (SD) | 97.21 (15.40) | 96.81 (16.59) | 99.33 (8.02) | 102.74 (12.18) |
| Range | 74–128 | 74–128 | 91–108 | 84–126 |
| WMI | ||||
| Mean (SD) | 96.58 (16.88) | 94.63 (17.47) | 107.00 (9.17) | 103.95 (13.87) |
| Range | 63–117 | 63–117 | 97–115 | 80–128 |
| PSI | ||||
| Mean (SD) | 95.21 (12.83) | 94.81 (13.51) | 97.33 (10.26) | 99.47 (11.62) |
| Range | 69–114 | 69–114 | 86–106 | 72–119 |
Note. SRS = Silver-Russell syndrome; 11p15 LOM = loss of methylation on chromosome 11p15; UPD(7)mat = maternal uniparental disomy of chromosome 7; SD = standard deviation, IQ = Intelligence Quotient; VCI = Verbal Comprehension Index; PIQ = Performance IQ; WMI = Working Memory Index; PSI = Processing Speed Index.