Table 6.

ROC analysis results (Area Under the Curve)

Test result variable(s)	Area	Std. Errora	Asymptotic Sig.b	Asymptotic 95% confidence interval
				Lower bound	Upper bound
l-Tryptophan	0.302	0.054	0.001	0.196	0.408
Taurine	0.205	0.039	0.000	0.128	0.281
l-Phenylalanine	0.648	0.054	0.013	0.542	0.753
l-Tyrosine	0.517	0.060	0.780	0.399	0.634
l-Leucine	0.489	0.058	0.855	0.376	0.602
l-isoleucine	0.415	0.056	0.152	0.305	0.524
l-Methionine	0.449	0.063	0.391	0.325	0.573
Gamma amino butyricacid	0.453	0.064	0.430	0.327	0.579
3-Amino isobutyric acid	0.288	0.049	0.000	0.193	0.383
l-Valine	0.573	0.053	0.221	0.469	0.677
l-Glutamic acid	0.368	0.050	0.027	0.269	0.467
Ethanolamine	0.501	0.061	0.988	0.382	0.620
Beta-Alanine	0.523	0.055	0.700	0.416	0.630
l-2-amino butyric acid	0.858	0.037	0.000	0.787	0.930
l-Asparticacid	0.458	0.064	0.477	0.331	0.584
l-Threonine	0.442	0.059	0.332	0.327	0.557
l-Serine	0.432	0.057	0.253	0.320	0.544
l-Alanine	0.371	0.056	0.031	0.262	0.480
l-Glycin	0.335	0.052	0.006	0.233	0.436
Trans-4-hydroxy l-proline	0.249	0.059	0.000	0.134	0.365
l-asparagine	0.594	0.058	0.117	0.480	0.708
l-Proline	0.395	0.057	0.080	0.284	0.507
l-Glutamine	0.444	0.061	0.345	0.324	0.563
l-Citrulline	0.355	0.056	0.015	0.245	0.464
l-Cystine	0.561	0.055	0.305	0.453	0.669
l-Arginine	0.596	0.057	0.107	0.485	0.707
l-Histidine	0.397	0.050	0.085	0.300	0.494
l-ornithine	0.315	0.046	0.002	0.224	0.406
l-Lysine	0.500	0.057	0.996	0.389	0.611
3-Methyl-l-Histidine	0.570	0.065	0.239	0.443	0.697

The test result variable(s): Gammaaminobutyricacid has at least one tie between the positive actual state group and the negative actual state group. Statistics may be biased

^aUnder the non-parametric assumption

^bNull hypothesis: true area = 0.5