TABLE 1.

Random forests of metabolites.

Metabolite	Mean decrease accuracy	Mean decrease gini	t.stat	p value
1-Methylnicotinamide	0.008	0.318	−3.958	−3.958
Diacetyl	0.004	0.326	3.990	<0.001
4-Hydroxyproline	0.004	0.191	−5.028	<0.001
Aspartame	0.004	0.152	−3.153	0.004
Beta-alanyl-l-arginine	0.004	0.216	−7.585	<0.001
Formononetin	0.003	0.185	5.301	<0.001
Heptanoic acid	0.003	0.127	4.981	<0.001
5-Hydroxylysine	0.003	0.122	5.355	<0.001
Galactaric acid	0.003	0.143	−5.119	<0.001
Cytidine monophosphate N-acetylneuraminic acid	<0.001	0.029	1.104	0.28
Pyridoxine	0.002	0.124	−3.897	<0.001
5-Acetamidovalerate	0.002	0.1	−3.13	0.004
l-Prolinamide	0.002	0.109	4.51	<0.001
Kyotorphin	0.002	0.076	−2.837	0.007
Beta-glycerophosphoric acid	0.001	0.049	2.185	0.037