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Association of genotype frequencies of BDNF Val66Met for participants with and without PTSD.
| Val66Met | Genotype counts (%) | p value | Allele count | |||
|---|---|---|---|---|---|---|
| Val/Val | Val/Met | Met/Met | Val | Met | ||
| PTSD | 99 (65.62) | 46 (30.5) | 6 (4.0) | 0.542∗ | 244 | 58 |
| No PTSD | 71 (67.0) | 28 (26.4) | 7 (6.6) | 0.435∗∗ | 170 | 42 |
| Odds ratio (p value) | 1 | 1.178 (0.811) | 0.615 (0.639) | 0.96 CI 95% [0.62; 1.50] |
1 | |
Note. ∗ p value determined by Pearson's χ 2 test; ∗∗ p value determined by Mantel-Haenszel test for trend in a given direction.
