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. 2011 Jun 8;8:34. doi: 10.1186/1743-7075-8-34

Table 14.

Regression analysis of autism severity and plasma amino acids

PDD-BI ATEC SAS
Primary Plasma Amino Acids (20)
Adjusted R2 0.39 0.22 0.24
P-value 0.001 0.01 0.007
Primary variables Proline **
Serine **
Leucine**
Valine *
Taurine *		 Asparagine **
Tryptophan *
Glutamic Acid *
Glutamine *
Phenylalanine *		 Serine **
Asparagine *
Proline *
Other Amino Acids
Adjusted R2 0.23 0.26 0.18
P-value 0.008 0.005 0.04
Primary variables Beta-amino-isobutyrate **
Ethanolamine *
Sarcosine *		 Ethanolamine **
Sarcosine **
Beta-amino-isobutyrate **
1-methyl-histidine *		 Ethanolamine *

* variable has a significance of p < 0.05

** variable has a significance of p < 0.01

*** variable has a significance of p < 0.001