Table 3. Correlation between hsa_circ_0006646 expression and clinicopathologic characteristics in GC patients.
| Characteristics | Case | hsa_circ_0006646 | χ 2 | P | |
|---|---|---|---|---|---|
| High (%) | Low (%) | ||||
| Age, years | 0.326 | 0.724 | |||
| <60 | 22 | 14 (63.6) | 8 (36.4) | ||
| ≥60 | 13 | 7 (53.8) | 6 (46.2) | ||
| Gender | 0.761 | 0.477 | |||
| Male | 23 | 15 (65.2) | 8 (34.8) | ||
| Female | 12 | 6 (50.0) | 6 (50.0) | ||
| TNM stage | 9.333 | 0.006** | |||
| I–II | 10 | 2 (20.0) | 8 (80.0) | ||
| III–IV | 25 | 19 (76.0) | 6 (24.0) | ||
| Lymph node invasion | 7.619 | 0.010* | |||
| Negative (N0) | 7 | 1 (14.3) | 6 (85.7) | ||
| Positive (N1–N3) | 28 | 20 (71.4) | 8 (28.6) | ||
| Histological grade | 1.414 | 0.283 | |||
| Low | 24 | 16 (66.7) | 8 (33.3) | ||
| Middle-High | 11 | 5 (45.5) | 6 (54.5) | ||
Data were analyzed by chi-squared test. *P<0.05; **P<0.01. GC, gastric cancer; TNM, tumor-node-metastasis.