Table 1.
Between-genotype comparisons of demographic data in the sample of younger adults (age range = 20–30 years).
| Genotype | Younger participants (n = 164) | |||||
|---|---|---|---|---|---|---|
| COMT | Val/Val | Val/Met | Met/Met | |||
| BDNF | Any Met | Val/Val | Any Met | Val/Val | Any Met | Val/Val |
| Demographics | ||||||
| n | 12 | 22 | 34 | 53 | 10 | 33 |
| Age (SD) | 25.6 (3.5) | 24.2 (3.2) | 25.1 (3.1) | 25.5 (3.2) | 26.0 (3.0) | 25.4 (3.3)a |
| Women/Men | 7/5 | 10/12 | 12/22 | 22/31 | 3/7 | 11/22b,c |
| Years of education (SD) | 12.3 (2.1) | 12.7 (1.2) | 12.9 (1.3) | 12.9 (1.5) | 13.2 (0.4) | 12.7 (1.2)a |
| State of health (SD) | 4.2 (0.9) | 4.0 (0.7) | 4.2 (0.6) | 4.3 (0.7) | 4.4 (0.5) | 4.2 (0.7)a |
| M.M.S.E. (SD) | – | – | – | – | – | – |
State of health is based on four self-ratings assessed on 5-point scales (1 = poor; 5 = excellent).
aTwo-way analyses of variance = n.s.
bχ2COMT = n.s.
cχ2BDNF = n.s.