Table 6: Correlation coefficient for top 4 metabolites and 4 clinical features, where a positive correlation coefficient shows that the metabolite was positively correlated with patients that need to receive colonoscopies.

FeaturePubChem CIDMetabolic pathwaysCorrelation

Methanol887Gut flora metabolism−0.16
Age0.16
Sex0.12
Trigonelline5570Nicotinate and nicotinamide metabolism0.12
Acetone180Degradation of ketone bodies;
propanoate metabolism
−0.11
Smoker0.11
Tyrosine6057Many amino acid pathways;
present in gut flora
0.09
GI Bleeding0.07