Table 3.
Feature | Murthy et al. [15] | Doornbos et al. [16] | De Kovel et al. [29] | Von der Lippe et al. [34] | Burnside et al. [13] | Abdelmoity et al. [17] | Madrigal et al. [33] | Mullen et al. [43] | Jahn et al. [42] | Usrey et al. [36] | Rudd et al. [37] | Jerkovich & Butler [14] | Total (%) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID */FSIQ 1 ≤ 75/special education | 2/2 | 6/12 | 0/11 | 5/11 | 11/49 | 13/15 | 2/2 | 1/6 | 2/3 | 1/1 | 0/3 | 0/1 | 43/116 (37) |
Verbal IQ ≤ 75 | N/A | 1/1 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1/3 | N/A | 2/4 (50) |
Performance IQ ≤ 75 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1/3 | N/A | 1/3 (33) |
Reading difficulties | N/A | N/A | N/A | 4/7 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4/7 (57) |
Writing difficulties | N/A | N/A | N/A | 3/5 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3/5 (60) |
Memory problems | N/A | N/A | N/A | 2/4 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1/1 | 3/5 (60) |
* Intellectual disability; 1 Full scale intelligence quotient; Bold indicate categories that represent 50% or greater incidence within the literature.