Table 2.
Association of miR-224 expression with clinicopathological features from ESCC patients
| Characteristics | miR-224 expression | P valuea | |
|---|---|---|---|
| High | Low | ||
| Age (years) | |||
| ≥60 | 22 | 15 | 0.658 |
| <60 | 14 | 12 | |
| Gender | |||
| Male | 28 | 17 | 0.198 |
| Female | 8 | 10 | |
| Tumor localizationb | |||
| Upper third | 3 | 5 | 0.442 |
| Middle third | 17 | 10 | |
| Lower third | 16 | 12 | |
| Tumor length (cm) | |||
| <3 | 15 | 12 | 0.881 |
| 3–5 | 17 | 13 | |
| >5 | 4 | 2 | |
| Pathologic grade | |||
| GI | 5 | 8 | 0.035 |
| GII | 10 | 12 | |
| GIII | 21 | 7 | |
| TNM | |||
| I | 5 | 6 | 0.029 |
| II | 16 | 18 | |
| III | 15 | 3 | |
aChi-square test
bClassified according to the AJCC, 7th edition, staging criteria for esophageal cancer