Table 1.

Demographics for Mexican American study participants

	Male	Female	Total
Participants	170 (40%)	250 (60%)	420
Age: mean(sd), [range]	23.7 (3.9), [18–30]	23.5 (3.8), [18–30]	23.6 (3.8), [18–30]
Self-reported MA heritage >= 50%	90.60%	92.60%	91.60%
BMI: mean(sd), [range]	27.6 (6.0) [17.3–52.3]	27.2 (7.4) [16.9–64.4]	27.3 (6.9) [16.9–64.4]
Education in years: mean(sd), [range]	13.2 (1.7), [9–17]	13.4 (1.8), [7–18]	13.3 (1.8), [7–18]
Income: mean(sd), [range]	4.8 (2.1), [1–9]	4.2 (2.1), [0–9]	4.4 (2.2) [0–9]
Alcohol Dependence, # of subject affected	63 [63/170 = 37%]	60 [60/250 = 24%]	123 [123/420 = 29.3%)
Pre-pulse inhibition: mean(sd), [range]	13.07 (8.38), [0.01–50.63]	15.48 (9.18), [0.01–60.12]	14.51 (8.93), [0.01–60.12]
Startle: mean(sd), [range]	12.28 (6.70), [0.01–36.28]	15.12 (8.00), [0.01–47.09]	13.97 (7.62), [0.01–47.09]