Table 3.
Clinical characters for patients with early cardia cancer and non-cardia cancer after PSM
| N | cardia | non-cardia | chi-square | P | |
|---|---|---|---|---|---|
| Gender | 0.109 | 0.742 | |||
| Male | 1491 | 749 | 742 | ||
| Female | 647 | 320 | 327 | ||
| Age | 1.360 | 0.244 | |||
| <65 | 669 | 322 | 347 | ||
| ≥65 | 1469 | 747 | 722 | ||
| Marital status | 1.123 | 0.289 | |||
| Married | 1284 | 630 | 654 | ||
| Unmarried/Unknown | 854 | 439 | 415 | ||
| Race | 0.003 | 0.954 | |||
| White | 1783 | 891 | 892 | ||
| Others | 355 | 178 | 177 | ||
| Histology | 0.626 | 0.429 | |||
| Adenocarcinoma | 1876 | 944 | 932 | ||
| Signet ring cell carcinoma | 262 | 125 | 137 | ||
| Grade | 2.379 | 0.304 | |||
| Well/Moderate differentiated | 946 | 467 | 479 | ||
| Poor differentiation/ Undifferentiated | 964 | 477 | 487 | ||
| Unknown | 228 | 125 | 103 | ||
| Stage | 1.206 | 0.272 | |||
| Ia | 1255 | 640 | 615 | ||
| Ib | 883 | 429 | 454 | ||
| Surgery | 0.218 | 0.640 | |||
| Yes | 1474 | 732 | 742 | ||
| No/Known | 664 | 337 | 327 |
*P < 0.05 was considered of significance.