Table 2.

Iowa Gambling Task scores between the three groups

	Anorexia Nervosa				Bulimia Nervosa N=38	Healthy Control N=83
	Whole Anorexic N=49	Anorexia restrictive N=37	Anorexia Purging N=12	p-value✰			p-value⊞
Total Net Score Median [min-max]	8 [−46–62]	8 [−42–62]	7 [−46–54]	0.89	4 [−64–96]	2 [−40–64]	0.98
1–20 net score Median [min-max]	−2 [−12–20]	−2 [−12–20]	−4 [−8–20]	0.41	−4 [−20–16]	−4 [−20–20]	0.37
21–40 net score Median [min-max]	0 [−12–20]	0 [−12–12]	4 [−6–20]	0.13	0 [−12–20]	0 [−18–20]	0.80
41–60 net score Median [min-max]	0 [−20–20]	−2 [−12–18]	4 [−20–20]	0.52	1 [−18–20]	2 [−12–20]	0.35
61–80 net score Median [min-max]	2 [−20–20]	2 [−16–20]	1 [−20–20]	0.43	3 [−20–20]	2 [−20–20]	0.87
81–100 net score Median [min-max]	4 [−16–20]	4 [−12–20]	2 [−16–20]	0.77	0 [−16–20]	4 [−20–20]	0.94
Knowledge of the task n (%)
None	22 (45.8)	18 (50.0)	4 (33.3)	NA	17 (44.8)	29 (34.9)	0.49
Intermediate	7 (14.6)	4 (11.1)	3 (25.0)		7 (18.4)	22 (26.5)
Full	19 (39.6)	14 (38.9)	5 (41.7)		14 (36.8)	32 (38.6)

NA: Chi2 Not Applicable

^✰Comparison IGT Score between anorexia restrictive and anorexia purging

^⊞Comparison of IGT Scores between anorexia nervosa subjects, bulimia nervosa subjects and healthy controls