Table 1.
Demographic features of the sample, subdivided according to the OLIG2 genotype
| OLIG2 rs1059004 Genotype | CC | CA | AA |
|---|---|---|---|
| N | 15 | 44 | 19 |
| Age (mean (sd), range) | 34.3 (14.6), 18–63 | 33.5 (11.5), 17–62 | 32.4 (11.5), 19–57 |
| Years of education [mean (sd)] | 15.8 (3.1) | 15.1 (3.1) | 14.7 (2.6) |
| IQ [z‐scores (sd)] | −0.80 (1.04) | −0.15 (1.09) | −0.37 (1.20) |
| Handedness (right/left/mixed) | 13/1/1 | 40/1/3 | 18/1/0 |
| Gender (male/female) | 8/7 | 25/19 | 13/6 |
IQ was assessed using the WASI‐FSIQ‐4 (Wechsler Abbreviated Scale of Intelligence – Full Scale IQ) [Wechsler D, [Link]] or the NART [National Adult Reading Test (Nelson, 1982)]. The proportion of subjects assessed with each tool was matched between OLIG2 genotype groups and ANOVA was performed with standardized scores (z‐scores) based on the mean and standard deviation of the control group for each tool.