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Table 2 Metabolites differentiating between different sport groups

From: Metabolomics profiling of xenobiotics in elite athletes: relevance to supplement consumption

Metabolite

Contrast

Fold change

Nominal p-value

FDR p-value

Catechol sulfate

Football_Swimming

0.9

3.04E-09

4.86E-06

O-methylcatechol.sulfate

Football_Swimming

1.1

3.35E-08

1.78E-05

Quinate

Football_Swimming

1.8

2.89E-08

1.78E-05

2-pyrrolidinone

Boxing_Rugby

0.5

8.13E-08

3.24E-05

2-furoyl.glycine

Cycling_Football

−1.2

6.26E-07

0.0002

2-pyrrolidinone

Boxing_Cycling

0.4

8.35E-07

0.0002

2-pyrrolidinone

Athletics_Rugby

0.3

3.99E-06

0.0009

Thioproline

Boxing_Rowing

1.2

7.42E-06

0.002

1,3,7-trimethylurate

Athletics_Football

−1.0

1.79E-05

0.003

Tartronate (hydroxymalonate)

Boxing_Rowing

−0.7

1.80E-05

0.003

2-pyrrolidinone

Football_Rugby

0.3

1.83E-05

0.003

Thioproline

Boxing_Cycling

1.0

2.96E-05

0.004

Thioproline

Athletics_Boxing

−0.8

3.50E-05

0.004

Ferulic acid 4-sulfate

Cycling_Football

−0.9

3.87E-05

0.004

Tartronate (hydroxymalonate)

Boxing_Rugby

−0.7

7.85E-05

0.007

Tartronate (hydroxymalonate)

Boxing_Swimming

−0.5

6.76E-05

0.007

3-hydroxypyridine sulfate

Cycling_Football

−1.3

7.90E-05

0.007

4-vinylguaiacol sulfate

Cycling_Football

−1.2

8.00E-05

0.007

Ectoine

Football_Swimming

0.9

8.32E-05

0.007

Ferulic acid 4-sulfate

Football_Swimming

0.9

7.10E-05

0.007

2-pyrrolidinone

Athletics_Cycling

0.2

9.09E-05

0.007

2-pyrrolidinone

Boxing_Rowing

0.4

9.30E-05

0.007

3-methyl catechol sulfate

Football_Swimming

1.1

0.0001

0.007

2,3-dihydroxyisovalerate

Boxing_Football

−1.6

0.0001

0.008

Hippurate

Football_Swimming

0.8

0.0001

0.009

Eugenol.sulfate

Athletics_Swimming

1.3

0.0002

0.009

Retinol

Athletics_Boxing

−1.50

0.0002

0.010

2,3-dihydroxyisovalerate

Athletics_Boxing

1.5

0.0002

0.010

Caffeic acid sulfate

Cycling_Football

−1.1

0.0002

0.010

Tartronate (hydroxymalonate)

Boxing_Cycling

−0.5

0.0002

0.010

3-hydroxypyridine sulfate

Football_Swimming

1.3

0.0002

0.011

Tartronate (hydroxymalonate)

Boxing_Football

−0.5

0.0002

0.013

Eugenol sulfate

Football_Swimming

1.1

0.0003

0.017

Stachydrine

Athletics_Swimming

1.1

0.0004

0.018

Ectoine

Cycling_Football

−0.8

0.0004

0.020

Stachydrine

Athletics_Cycling

1.1

0.0005

0.023

4-hydroxyhippurate

Athletics_Swimming

0.7

0.0005

0.023

Thioproline

Boxing_Football

0.8

0.0007

0.028

Methyl glucopyranoside (alpha/beta)

Athletics_Boxing

1.0

0.0008

0.031

4-allylphenol sulfate

Athletics_Boxing

1.2

0.0012

0.048

  1. Levels of significantly different metabolites in the studied 7 groups (after correction for covariates) (FDR significance, p ≤ 0.05)