Table 3.

BDNF genotype and ethnicity frequency distribution across groups.

Genotype	Group	Ethnicity			Total
		Caucasian	Asian	Black
Val/Val	Control	35 (76.1%)*	10 (21.7%)*	1 (2.2%)*	46 (100%)*
	TE	52 (82.5%)*	9 (14.3%)*	2 (3.2%)*	63 (100%)*
	PTSD	28 (93.3%)*	2 (6.7%)*	0	30 (100%)*
	Total	115 (82.7%)*	21 (15.1%)*	3 (2.2%)*	139 (100%)*
Val/Met	Control	12 (30.8%)*	27 (69.2%)*	0	39 (100%)*
	TE	23 (54.8%)*	19 (45.2%)*	0	42 (100%)*
	PTSD	12 (85.7%)*	2 (14.3%)*	0	14 (100%)*
	Total	47 (49.5%)*	37 (50.5%)*	0	95 (100%)*
Total	Control	47 (55.3%)*	37 (43.5%)*	1 (1.2%)*	85 (100%)*
	TE	75 (71.4%)*	28 (26.7%)*	2 (1.9%)*	104 (100%)*
	PTSD	40 (90.9%)*	4 (9.1%)*	0 (0.0%)*	44 (100%)*
	Total	162 (69.2%)*	69 (29.5%)*	3 (1.3%)*	234 (100%)*

*% within group.