| CRC | colorectal cancer |
| AUC | area under the receiver operating characteristic curve |
| CI | confidence interval |
| CEA | serum carcinoembryonic antigen |
| ODC | ornithine decarboxylase |
| SSAT | spermine/spermidine N1-acetyltransferase |
| APAO | N1-acetylpolyamine oxidase |
| SMO | spermine oxidase |
| APC | adenomatous polyposis coli |
| LC-MS | liquid chromatography-mass spectrometry |
| CoV | coefficient of variation |
| MLR | multiple logistic regression |
| C | controls |
| B | benign |
| M | malignant |
| SD | standard deviation |
| ROC | receiver operating characteristic |
| ADTree | alternative decision tree |
| CV | cross validation |
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