Table 1. Correlation between PPA1 level and clinical features of colon cancer patients.
| Variables | Patients | PPA1 expression | P value | |
|---|---|---|---|---|
| (n = 113) | Low (n = 58) | High (n = 55) | ||
| Gender | ||||
| Female | 30 | 15 | 15 | 0.865 |
| Male | 83 | 43 | 40 | |
| Age (years) | ||||
| ≤ 62 | 57 | 33 | 24 | 0.159 |
| > 62 | 56 | 25 | 31 | |
| Serum CEA (ng/mL) | ||||
| ≤ 5 | 83 | 46 | 37 | 0.148 |
| > 5 | 30 | 12 | 18 | |
| Location | ||||
| Ascending | 46 | 19 | 27 | 0.207 |
| Transverse | 16 | 9 | 7 | |
| Descending/Sigmoid | 51 | 30 | 21 | |
| Differentiation | ||||
| Poor | 19 | 10 | 9 | 0.719 |
| Moderate | 86 | 45 | 41 | |
| Well | 8 | 3 | 5 | |
| Largest diameter (cm) | ||||
| ≤ 5.0 | 74 | 40 | 34 | 0.424 |
| > 5.0 | 39 | 18 | 21 | |
| pT | ||||
| T1-T2 | 48 | 29 | 19 | 0.097 |
| T3-T4 | 65 | 29 | 36 | |
| pN | ||||
| N0 | 50 | 32 | 18 | 0.041* |
| N1 | 40 | 18 | 22 | |
| N2 | 23 | 8 | 15 | |
| TNM stage | ||||
| Stage I/II | 50 | 29 | 21 | 0.206 |
| Stage III | 63 | 29 | 34 | |
* indicates statistically significant (P<0.05).