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Table 5 Association analysis between rs6265 polymorphism and BDI scores in the sixth week following mTBI

From: The association between BDNF Val66Met polymorphism and emotional symptoms after mild traumatic brain injury

Genotype Sample no. (%) BDI scorea Codominant p value Dominant p value Recessive p value Log-additive p value
Total (n = 103)
 TT 16 (15.5) 11.55 ± 2.90 0.327 0.382 0.148 0.170
 CT 55 (53.4) 9.30 ± 1.46     
 CC 32 (31.1) 6.83 ± 1.79     
Male (n = 36)
 TT 5 (13.9) 14.00 ± 7.02 0.032* 0.174 0.010* 0.021*
 CT 20 (55.6) 6.91 ± 2.56     
 CC 11 (30.6) 2.13 ± 0.61     
Female (n = 67)
 TT 11 (16.4) 10.63 ± 3.29 0.878 0.620 0.767 0.621
 CT 35 (52.2) 10.50 ± 1.76     
 CC 21 (31.3) 9.19 ± 2.49     
  1. aMean ± standard error (s.e.). The p value was adjusted for GCS, GOSE, injury mechanism, antidepressant medication use and hypnotic medication use. *p < 0.05 is labeled in bold