Table 2.
Mean (±SD) sample characteristics by the BDNF polymorphisms
| Val/Val | Val/Met + Met/Met | |
|---|---|---|
| N | 66 | 16 |
| Age mean, yearsa | 29.95 (9.26) | 26.44 (9.69) |
| Age range | 18–55 | 20–52 |
| Handedness (right/left)b | 59/6 | 15/0 |
| Gender (Female/Male)c | 35/31 | 9/7 |
| Rs mean, minutesd | 7.92 (3.07) | 7.58 (2.47) |
| Rs range | 3–24 | 5–10 |
a
Age information missing from three participants. The polymorphism groups did not differ in terms of age as confirmed by an independent samples t-test (2-tailed).
b
Handedness information missing from two participants.
c
The percentages of female and male participants did not differ between the BDNF polymorphism groups as indicated by the Chi-squared test.
d
Rs = resting state. The duration of the resting state recording did not differ between polymorphism groups as confirmed by an independent samples t-test (2-tailed).