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Table 9 Summary of short chain fatty acids (SCFA's) in stool.

From: Gastrointestinal flora and gastrointestinal status in children with autism – comparisons to typical children and correlation with autism severity

  Acetate Butyrate Propionate Valerate Total SCFA's
Autism/Asperger's 3.5 +/- 1.4 1.63 +/- 1.2 1.28 +/- 0.5 0.22 +/- 0.1 6.7 +/- 2.8
A-Probiotics (n = 19) 2.94 +/- 1.4 1.00 +/- 0.7 1.02 +/- 0.37 0.17 +/- 0.10 5.13 +/- 2.2
A-No-Probiotics (n = 38) 3.84 +/- 1.3 1.95 +/- 1.25 1.43 +/- 0.54 0.24 +/- 0.12 7.5 +/- 2.8
Controls 5.2 +/- 1.6 2.00 +/- 0.9 1.64 +/- 0.6 0.36 +/- 0.3 9.2 +/- 2.6
Ttest Comparisons      
A-Probiotics vs. A-No Probiotics P = 0.02 P = 0.003 P = 0.004 P = 0.02 P = 0.002
A-Probiotics vs. Controls P = 0.000002 P = 0.0001 P = 0.00007 P = 0.02 P = 0.0000002
A-No-Probiotics vs. Controls P = 0.00009 n.s. P = 0.09 P = 0.05 P = 0.006
All autism vs. Controls P = 0.0000003 (-32%) P = 0.005 (-18%) P = 0.002 (-22%) P = 0.005 (-39%) P = 0.00002 (-27%)
  1. Each fatty acid is expressed in units of mg/mL.