Table 2 Comparison between autism spectrum disorder (ASD) and typically developing (TD) children of the urinary metabolites using standardized canonical discriminant function
Urine organic acids in pseudo units | ASD | TD | Test of Equality of Group Means | Discriminant Function Coefficients | ||
|---|---|---|---|---|---|---|
Mean (SD) | Mean (SD) | Wilk’s Lambda | F | Sig. |  | |
3-hydroxy isovaleric | 0.20(0.14) | 1.05(1.12) | 0.697 | 36.035 | < 0.0001 | −0.812 |
Indoleacetic acid | 0.61 (0.91) | 0.02 (0.04) | 0.908 | 8.455 | 0.005 | −0.342 |
Adipic acid | 1.54(2.38) | 0.01 (0.04) | 0.911 | 8.095 | 0.006 | 0.277 |
Suberic acid | 1.28(2.35) | 0.005 (0.022) | 0.934 | 5.849 | 0.018 | 0.148 |
Homovanillic acid | 10.07(6.8) | 6.60(2.41) | 0.941 | 5.178 | 0.025 | 0.404 |
3-hydroxy butyric acid | 0.57(0.72) | 0.25 (0.17) | 0.955 | 3.889 | 0.052 | 0.107 |
Lactic acid | 1.71 (1.37) | 0.79 (3.46) | 0.964 | 3.137 | 0.080 | 0.568 |
Citric acid | 34.80(39.1) | 17.58 (46.12) | 0.968 | 2.725 | 0.103 | 0.052 |
2-ketoglutaric acid | 5.98(12.04) | 3.62(11.64) | 0.993 | 0.598 | 0.442 | −0.146 |
4-hydroxyphenyl acetic acid | 32.40 (56.4) | 23.57(33.2) | 0.995 | 0.441 | 0.509 | −0.015 |