Table 2.

Subject Characteristics and Behavioral Measures in Methamphetamine Dependence

	Obese BED	HV			Obese Control	HV			Meth	HV-Meth
	(n = 30)	(n = 30)	t	p	(n = 30)	(n = 30)	t	p	(n = 22)	(n = 20)	t	p
Age	42.92 (8.59)	44.12 (10.18)	.49	.623	44.06 (9.70)	43.59 (10.01)	.18	.854	31.05 (4.78)	33.50 (7.78)	1.24	.221
Men (n)	13	13			19	19			21	16
IQ	115.95 (6.67)	116.32 (5.93)	.23	.821	115.18 (6.45)	116.49 (5.89)	.82	.415	108.89 (4.59)	112.01 (4.71)	2.17	.036
BDI	12.50 (6.52)	5.02 (5.25)	4.89	< .001	6.96 (5.92)	5.93 (5.31)	.71	.481	15.32 (8.13)	5.35 (5.33)	4.74	< .001
UPPS-P	132.60 (19.98)	124.12 (23.53)	1.50	.138	128.95 (19.89)	123.95 (24.11)	.88	.384	156.71 (22.47)	120.94 (21.27)	5.22	< .001
BMI	34.68 (5.49)	23.86 (2.74)	9.66	< .001	32.72 (3.41)	24.11 (2.89)	10.55	< .001
BES	24.70 (7.56)	7.22 (7.12)	9.22	< .001	8.67 (7.08)	7.30 (7.05)	.75	.456
AUDIT	6.11 (5.51)	5.13 (3.78)	.80	.425	4.09 (3.99)	4.58 (3.87)	.48	.631
Premature Responding	5.78 (3.66)	5.91 (4.18)	.13	.899	6.83 (4.73)	5.99 (4.35)	.72	.477	13.35 (6.77)	7.52 (5.59)	3.03	.004
Accuracy	.94 (.06)	.92 (.07)	1.19	.240	.94 (.04)	.92 (.07)	1.36	.180	.90 (.07)	.91 (.06)	.49	.624
Late Response	.08 (.07)	.08 (.08)	.00	1.000	.07 (.07)	.08 (.08)	.51	.608	.06 (.06)	.07 (.05)	.58	.563
Total Win	1126.79 (558.44)	1058.17 (418.35)	.54	.592	1189.21 (456.83)	1093.24 (433.28)	.83	.407	1009.15 (398.22)	1192.43 (418.29)	1.45	.154
RT Baseline 1	379.14 (96.54)	388.07 (103.01)	.35	.733	412.75 (93.27)	381.20 (99.35)	1.27	.210	348.53 (96.10)	389.24 (140.37)	1.11	.276
RT Reward	324.48 (40.82)	347.62 (36.09)	2.32	.021	315.84 (69.67)	335.49 (35.12)	1.38	.173	315.33 (43.24)	318.97 (36.83)	029	.772
RT Baseline 2	288.14 (86.55)	271.64 (64.89)	.84	.407	284.45 (66.40)	279.23 (65.12)	.31	.760	270.75 (121.25)	269.63 (94.95)	.03	.974
Motivation Index	.14 (.10)	.18 (.13)	1.36	.187	.19 (.14)	.18 (.13)	.29	.775	.12 (.13)	.18 (.09)	1.72	.09

Reported in mean (SD).

Meth, abstinent methamphetamine-dependent subjects; other abbreviations as in Table 1.