Table 1. Demographics of participants' distribution on the three genotypes of 6265.
| Independent of SNP | rs6265 | ||||
| Male | Female | AA | AG | GG | |
| Male/Female | 186 | 181 | 4/8 | 46/51 | 136/122 |
| BMI | 26.7 (3.8) | 26.7 (4.6) | 29.2(5.8) | 26.8 (4.3) | 26.6 (4.1) |
| Trailmaking-task B | 156 (92) | 150 (71) | 118 (44) | 143 (62) | 160 (90) |
| Educational level Scale 1–3 | 0.6 (0.8) | 0.7 (0.8) | 0.9 (0.9) | 0.6 (0.9) | 0.6 (0.8) |
| Total brain volume (ml) | 1819 (141) | 1659 (144) | 1778 (149) | 1731 (166) | 1742 (163) |
| Total grey matter (ml) | 600 (68) | 534 (61) | 565 (62) | 562 (66) | 569 (75) |
| Gray matter relative TBV (%) | 33 (3.3) | 32 (3.3) | 34 (3.4) | 32 (2.9) | 33 (3.5) |
| White matter (ml) | 469 (68) | 416 (51) | 402 (44) | 447 (55) | 443 (70) |
| White matter relative TBV (%) | 26 (3.9) | 25 (2.3) | 24 (2.5) | 27 (2.3) | 25 (3.5) |
| CSF (ml) | 750 (100) | 710 (104) | 751 (86) | 717 (106) | 734 (104) |
| CSF relative TBV (%) | 41 (3.9) | 43 (4.2) | 42 (3.6) | 41 (3.8) | 42 (4.2) |
| Grey matter+White matter (ml) | 1006 (113) | 1014 (112) | 1006 (78) | 1007 (113) | 1012 (114) |
Unless otherwise stated. Mean values are given with standard deviations in parentheses.