Table 3.

Ghrelin effect on decision-making parameters^*

Task	p value
	Group	Age	Ghrelin	Ghrelin × group
Delay discounting	0.60	0.024	0.17	0.036
Probability discounting for gains	0.005	0.82	0.20	0.74
Probability discounting for losses	0.26	0.29	0.49	0.15
Mixed gamble	0.16	0.43	0.32	0.07

^*Findings are presented as the p values of F tests on general linear models containing group as the factor, age and ghrelin as covariates, and the group × ghrelin interaction. The group × ghrelin interaction was significant for delay discounting (DD). The linear coefficient relating ghrelin and k_DD was decreased in patients with acute anorexia nervosa compared with healthy controls, resisting at the trend level when correcting for multiple testing (t₁₀₉ = −1.967; estimate [standard error] = −0.0029 (0.0015); p = 0.098; posthoc t test, Bonferroni corrected).