Table 3.
Secondary outcomes
| Analysis | Cases | Control | Method | AUC | Accuracy (%) | Sens (%) | Spec (%) | PPV (%) | NPV (%) |
| Early CRC vs control | 22 | 101 | RF | 0.76 | 80.70 | 88.20 | 47.60 | 88.10 | 45.50 |
| XG Boost | 0.71 | 77.40 | 88.20 | 27.30 | 84.90 | 33.00 | |||
| Advanced CRC vs control | 83 | 101 | RF | 0.70 | 65.60 | 72.50 | 57.10 | 67.00 | 62.70 |
| XG Boost | 0.74 | 68.60 | 62.00 | 72.80 | 72.50 | 62.10 | |||
| Early vs advanced CRC | 22 | 83 | RF | 0.73 | 75.70 | 32.50 | 92.20 | 41.20 | 83.00 |
| XG Boost | 0.64 | 68.70 | 41.70 | 75.80 | 31.00 | 82.9 | |||
| Metastasis CRC vs control | 42 | 101 | RF | 0.71 | 73.60 | 88.20 | 38.10 | 77.60 | 57.10 |
| XG Boost | 0.74 | 72.20 | 84.30 | 42.90 | 78.20 | 52.90 | |||
| Right hemicolon vs control | 27 | 101 | RF | 0.67 | 73.80 | 86.30 | 28.60 | 81.30 | 33.30 |
| XG Boost | 0.65 | 75.40 | 84.30 | 42.90 | 85.00 | 42.90 | |||
| Left hemicolon vs control | 19 | 101 | RF | 0.80 | 85.20 | 96.10 | 30.00 | 87.50 | 55.6 |
| XG Boost | 0.74 | 83.60 | 96.00 | 20.00 | 86.00 | 42.9.00 | |||
| Rectum vs control | 56 | 101 | RF | 0.71 | 70.90 | 82.40 | 50.00 | 75.00 | 60.90 |
| XG Boost | 0.70 | 65.80 | 72.50 | 53.60 | 74.00 | 51.70 |
AUC, area under the curve; XGBoost, extreme gradient boosting; CRC, colorectal cancer; NPV, negative predictive value; PPV, positive predictive value; RF, random forest.