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The mean concentrations of CEA and CA 19-9 in CRC group and benign colorectal disorder group [Median (P25-P75)]
| Group | N | CEA (ng/ml) | CA 19-9 (U/ml) |
|---|---|---|---|
| CRC | 138 | 5.60 (2.08-11.25) | 21.60 (11.45-46.00) |
| Benign colorectal disorder | 111 | 1.73 (1.17-2.45) | 13.00 (7.60-19.00) |
Mann-Whitney U test was carried out between the two groups: CEA (Z = -7.843, P < 0.001), CA 19-9 (Z = -5.159, P < 0.001).
