Table 1.
Basic demographics are presented according to GAD1 rs3749034 genotype.
| rs3749034 | A carriers (n = 41) |
G/G homozygotes (n = 53) |
χ2/t-test | df | p | ||
|---|---|---|---|---|---|---|---|
| Sex | female | N | 17 | 23 | 0.035 | 1 | 0.851 |
| % | 41.5 | 43.4 | |||||
| Ethnicity | white | N | 38 | 46 | 1.217 | 1 | 0.270 |
| % | 92.7 | 86.8 | |||||
| Age | Mean (SD) | 34.22 (12.10) | 32.91 (10.63) | 0.559 | 92 | 0.577 | |
| WRAT | Mean (SD) | 49.85 (4.7) | 51.30 (3.69) | −1.674 | 92 | 0.098 | |
| Parental SES | Mean (SD) | 2.59 (0.63) | 2.81 (0.79) | −1.503 | 92 | 0.136 | |
| Handedness | Mean (SD) | 1.12 (2.94) | 1.04 (2.86) | 0.140 | 92 | 0.889 | |
Abbreviations: WRAT, Wide Range Achievement Test; SES, Socioeconomic Status; Handedness, Annett Handedness Scale. T-test did not show any significant main effects of genotype group (A carriers vs. G allele homozygotes) on Age, WRAT Score, Parental SES and Handedness. Chi-square statistics did not reveal any relationships between genotype groups (A carriers vs. G allele homozygotes) and Gender and Ethnicity.