Table 2.
Relationship between positive expression of Piwil1 and Piwil2 proteins in colon cancer tissue and its clinicopathological factors
| Clinical pathological factors | Number of cases | Number of Piwil1-positive cases (%) | χ2 | P | Number of Piwil2-positive cases (%) | χ2 | P |
|---|---|---|---|---|---|---|---|
| Sex | 1.094 | 0.296 | 0.240 | 0.624 | |||
| Male | 51 | 43 (84.3) | 46 (90.2) | ||||
| Female | 41 | 31 (75.6) | 39 (95.1) | ||||
| Age (years) | 0.112 | 0.737 | 1.487 | 0.223 | |||
| 55 or below | 39 | 32 (82.1) | 34 (87.2) | ||||
| Above 55 | 53 | 42 (79.2) | 51 (96.2) | ||||
| AJCC 7th edition | 5.403 | 0.020 | 1.950 | 0.163 | |||
| TNM stage | |||||||
| I + II stage | 49 | 35 (71.4) | 43 (91.8) | ||||
| III + IV stage | 43 | 39 (90.7) | 42 (93.0) | ||||
| Degree of differentiation | 10.889 | 0.001 | 0.014 | 0.906 | |||
| High | 31 | 19 (61.3) | 28 (90.3) | ||||
| Medium or low | 61 | 55 (90.2) | 57 (93.4) | ||||
| Lymph node metastasis | 6.546 | 0.011 | 0.186 | 0.666 | |||
| No | 52 | 37 (71.2) | 47 (90.4) | ||||
| Yes | 40 | 37 (92.5) | 38 (95.0) |
Abbreviation: AJCC, American Joint Committee on Cancer; TNM, tumour node metastasis.