Table 1. Correlation between calpain-9 expression and clinicopathological features of gastric cancer patients.
| Variables | Calpain-9 expression | |||
|---|---|---|---|---|
| No. | Low | High | P-value* | |
| No. (%) | No. (%) | |||
| Gender | ||||
| Male | 100 | 67 (67.0) | 33(33.0) | 0.002 |
| Female | 51 | 21(41.2) | 30(58.8) | |
| Age | ||||
| <60 | 71 | 37(52.1) | 34(47.9) | 0.148 |
| >=60 | 80 | 51(63.8) | 29(36.2) | |
| Tumor site | ||||
| Cardia | 23 | 12(52.2) | 11(47.8) | 0.514 |
| Body | 38 | 25(65.8) | 13(34.2) | |
| Antrum | 90 | 51(56.7) | 39(43.3) | |
| Lauren type | ||||
| Intestinal | 96 | 53(55.2) | 43(44.8) | 0.371 |
| Mixture | 20 | 11(55.0) | 9(45.0) | |
| Diffuse | 35 | 24(68.6) | 11(31.4) | |
| Differentiation | ||||
| Well/Moderately | 30 | 17(56.7) | 13(43.3) | 0.842 |
| Poorly | 121 | 71(58.7) | 50(41.3) | |
| Vessel invasion | ||||
| Positive | 50 | 31(62.0) | 19(38.0) | 0.514 |
| Negative | 101 | 57(56.4) | 44(43.6) | |
| T stage | ||||
| T1–T2 | 36 | 10(27.8) | 26(72.2) | <0.001 |
| T3–T4 | 115 | 78(67.8) | 37(32.2) | |
| Lymph node metastasis | ||||
| Positive | 92 | 65(70.7) | 27(29.3) | <0.001 |
| Negative | 59 | 23(39.0) | 36(61.0) | |
| Distant metastasis | ||||
| M1 | 2 | 2(100.0) | 0(0.0) | 0.510 |
| M0 | 149 | 86(57.7) | 63(42.3) | |
| TNM stage | ||||
| I | 21 | 5(23.8) | 16(76.2) | <0.001 |
| II | 39 | 16(41.0) | 23(59.0) | |
| III | 89 | 65(73.0) | 24(27.0) | |
| IV | 2 | 2(100.0) | 0(0.0) | |
P < 0.05 indicates that the differences have statistical significance.
*Pearson chi-square tests.