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. Author manuscript; available in PMC: 2019 Nov 7.
Published in final edited form as: Biol Psychiatry. 2018 Sep 6;85(4):345–354. doi: 10.1016/j.biopsych.2018.08.016

Table 1:

Diagnostic performance metrics of amine ratios to discriminate subpopulations of ASD subjects in the training and test sets of subjects. The ratios all include branched chain amino acid (BCAA) values in the denominators and negatively correlated Gly-cluster metabolites in the numerator. Abbreviations: Pos., positive, Pred., predictive; AADM, amino acid dysregulation metabotype; ASD, autism spectrum disorder; Train, training set; Test, test set.

Ratio Sensitivity Specificity Pos. Pred. Value Permutation Test
Train Test Train Test Train Test Train Test
Ratios used to create AADMAlanine
Ala:Ile 0.202 0.175 0.894 0.937 0.850 0.902 3.40E-02 9.00E-03
Ala:Leu 0.245 0.133 0.894 0.937 0.873 0.875 2.00E-03 5.50E-02
Ala:Val 0.178 0.114 0.918 0.924 0.865 0.833 2.20E-02 2.22E-01
Ratios used to create AADMGlutamine
Gln:Ilea 0.126 0.163 0.976 0.937 0.941 0.896 3.00E-03 1.30E-02
Gln:Leu 0.103 0.217 0.976 0.886 0.929 0.864 9.00E-03 2.40E-02
Gln:Val 0.130 0.186 0.976 0.886 0.943 0.845 1.00E-03 9.90E-02
Ratios used to create AADMGlycine
Gly:Ilea 0.174 0.152 0.953 0.962 0.917 0.930 0.00E+00 2.00E-03
Gly:Leua 0.146 0.148 0.953 0.987 0.902 0.975 8.00E-03 0.00E+00
Gly:Val 0.126 0.160 0.976 0.937 0.941 0.894 3.00E-03 1.50E-02
Ratios used to create AADMHomoserine
Hse:Ile 0.063 0.137 0.976 0.949 0.889 0.900 1.16E-01 2.50E-02
Hse:Leu 0.107 0.122 0.953 0.975 0.871 0.941 8.20E-02 3.00E-03
Hse:Val 0.067 0.160 0.965 0.962 0.850 0.933 2.09E-01 4.00E-03
Ratios used to create AADMOrnithine
Orn:Ilea 0.115 0.103 0.965 0.987 0.906 0.964 2.10E-02 9.00E-03
Orn:Leua 0.103 0.202 0.965 0.949 0.897 0.930 3.70E-02 0.00E+00
Orn:Val 0.119 0.141 0.953 0.937 0.882 0.881 3.70E-02 4.30E-02
Ratios used to create AADMSerine
Ser:Ile 0.130 0.129 0.953 0.949 0.892 0.895 2.00E-02 2.20E-02
Ser:Leua 0.138 0.167 0.941 0.924 0.875 0.880 3.00E-02 3.80E-02
Ser:Val 0.190 0.228 0.941 0.873 0.906 0.857 1.00E-03 3.90E-02
Ratios used to create AADMHydroxyproline
Hyp:Ile 0.111 0.087 0.941 0.911 0.848 0.767 1.14E-01 6.03E-01
Hyp:Leu 0.115 0.095 0.918 0.899 0.806 0.758 2.69E-01 6.64E-01
Hyp:Val 0.241 0.213 0.871 0.772 0.847 0.757 1.70E-02 6.64E-01
a

The observed diagnostic performance occurred in less than 5% of 1000 permutations of subject diagnosis in both training and test sets.

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