Similarly, 75.6% and 68.2% of patients in the low and the high BDNF group, respectively, had hypertension, which was not significantly different (p = 0.486), whereas 40.0% and 29.7% in the low and the high BDNF group were smokers, also with no significant difference (p = 0.363). This evidence concerns the gene BDNF and Hypertension.