Table 1.
The characteristics of participants
| Sample type | No. | Age (years) | Sex (%) | ||
|---|---|---|---|---|---|
| Mean | S.D. | Male | Female | ||
| CRC tissues | 407 | 67.97 | 12.56 | 52.29 | 47.71 |
| CRC plasma | |||||
| Training set | 100 | 63.16 | 11.34 | 56.00 | 44.00 |
| Validation set | 50 | 57.44 | 12.97 | 54.00 | 46.00 |
| Overall | 150 | 61.25 | 12.17 | 55.33 | 44.67 |
| Control plasma | |||||
| Training set | 67 | 61.06* | 11.40 | 53.73‡ | 46.27 |
| Validation set | 34 | 59.88† | 12.35 | 52.94§ | 47.06 |
| Overall | 101 | 60.66 | 11.68 | 53.47 | 46.53 |
Compared with CRC plasma, *t‐test, P = 0.1476; † t‐test, P = 0.3621; ‡χ2 = 0.083, P = 0.773; §χ2 = 0.009, P = 0.924. S.D.: standard deviation; CRC: colorectal cancer.