Table A.1. Demographic Information According to Group.

	5-HTTLPR
	S/S or S/L (n = 34)	L/L (n = 17)
	M (SD) [range]	M (SD) [range]
Age	21.32 (2.51) [18 – 25]	21.06 (2.22) [18 – 25]
% Female	47.06%	53.94%
% Caucasian	64.71%	76.47%
WASI Vocabulary T-score	57.06 (9.25) [38-74]	60.35 (7.32) [49 – 72]
Years of Education	13.77 (1.67) [12 – 18]	13.94 (2.19) [11 – 19]
BDI-II total	6.09 (6.40) [0 – 26]	4.29 (4.15) [0 – 16]
Body Mass Index	24.86 (6.90) [13.63 – 40.35]	25.44 (4.50) [20.16 – 36.58]
Cotinine levels	2.15 (2.56) [0 – 6]	3.00 (2.96) [0 – 6]

Notes: M = mean; SD = standard deviation. There were no significant group differences.