Table 2.
Univariate and multivariate logistic regression for analyzing the risk factors for early death in the SEER database
| Variables | Univariate | Multivariate | ||||
|---|---|---|---|---|---|---|
| OR | 95%CI | p value | OR | 95%CI | p value | |
| Age (years) | ||||||
| <40 | Ref | Ref | ||||
| 40-59 | 1.087 | 0.815-1.463 | 0.575 | 0.836 | 0.603-1.168 | 0.286 |
| 60-79 | 1.513 | 1.143-2.023 | 0.004 | 1.106 | 0.799-1.545 | 0.548 |
| 80+ | 3.496 | 2.549-4.836 | <0.001 | 1.458 | 0.993-2.152 | 0.056 |
| Sex | ||||||
| Male | Ref | Ref | ||||
| Female | 1.021 | 0.899-1.159 | 0.748 | 0.828 | 0.704-0.973 | 0.022 |
| Race | ||||||
| White | Ref | Ref | ||||
| Black | 1.091 | 0.906-1.311 | 0.356 | 0.910 | 0.727-1.137 | 0.410 |
| Other | 0.834 | 0.695-0.998 | 0.049 | 0.706 | 0.569-0.874 | 0.001 |
| Marital status | ||||||
| Married | Ref | Ref | ||||
| Separated/Divorced | 0.049 | 1.090-1.623 | 0.005 | 1.305 | 1.034-1.642 | 0.024 |
| Widowed | 2.243 | 1.842-2.732 | <0.001 | 1.241 | 0.963-1.598 | 0.094 |
| Single | 1.405 | 1.195-1.651 | <0.001 | 1.273 | 1.047-1.547 | 0.015 |
| Primary site | ||||||
| Cardiac/fundus | Ref | Ref | ||||
| Body | 1.103 | 0.888-1.367 | 0.371 | 1.201 | 0.921-1.561 | 0.174 |
| Antrum/pylorus | 1.308 | 1.091-1.565 | 0.004 | 1.305 | 1.036-1.644 | 0.023 |
| Lesser& greater curvature | 1.184 | 0.999-1.401 | 0.051 | 1.314 | 1.064-1.620 | 0.011 |
| Other | 1.464 | 1.222-1.752 | <0.001 | 1.148 | 0.919-1.435 | 0.223 |
| Histology | ||||||
| Adenocarcinoma | Ref | Ref | ||||
| Signet ring cell carcinoma | 0.893 | 0.778-1.024 | 0.107 | 0.999 | 0.831-1.201 | 0.996 |
| Grade | ||||||
| Well/moderately | Ref | Ref | ||||
| Poorly /undifferentiated | 1.321 | 1.144-1.528 | <0.001 | 1.904 | 1.588-2.287 | <0.001 |
| Bone metastases | ||||||
| Yes | Ref | Ref | ||||
| No/unknown | 0.752 | 0.632-0.895 | 0.001 | 0.64 | 0.521-0.786 | <0.001 |
| Brain metastases | ||||||
| Yes | Ref | Ref | ||||
| No/unknown | 0.401 | 0.264-0.603 | <0.001 | 0.328 | 0.202-0.529 | <0.001 |
| Liver metastases | ||||||
| Yes | Ref | Ref | ||||
| No/unknown | 0.815 | 0.722-0.921 | 0.001 | 0.798 | 0.682-0.934 | 0.005 |
| Lung metastases | ||||||
| Yes | Ref | Ref | ||||
| No/unknown | 0.746 | 0.631-0.884 | 0.001 | 0.749 | 0.614-0.915 | 0.004 |
| T stage | ||||||
| T1 | Ref | Ref | ||||
| T2 | 0.589 | 0.413-0.830 | 0.003 | 0.591 | 0.391-0.883 | 0.011 |
| T3 | 0.657 | 0.530-0.814 | <0.001 | 0.928 | 0.719-1.197 | 0.566 |
| T4 | 0.938 | 0.774-1.136 | 0.512 | 1.121 | 0.887-1.418 | 0.341 |
| Unknown | 1.181 | 0.996-1.400 | 0.056 | 1.051 | 0.858-1.289 | 0.630 |
| N stage | ||||||
| N0 | Ref | Ref | ||||
| N1 | 0.710 | 0.615-0.820 | <0.001 | 0.821 | 0.692-0.973 | 0.023 |
| N2 | 0.476 | 0.357-0.630 | <0.001 | 0.703 | 0.500-0.982 | 0.041 |
| N3 | 0.530 | 0.400-0.695 | <0.001 | 0.783 | 0.553-1.102 | 0.164 |
| Unknown | 1.344 | 1.125-1.607 | 0.001 | 1.245 | 1.005-1.542 | 0.045 |
| Surgery | ||||||
| Yes | Ref | Ref | ||||
| No/unknown | 2.269 | 1.809-2.870 | <0.001 | 2.697 | 1.993-3.675 | <0.001 |
| Radiation | ||||||
| Yes | Ref | Ref | ||||
| No/unknown | 1.229 | 1.053-1.437 | 0.009 | 0.985 | 0.815-1.193 | 0.879 |
| Chemotherapy | ||||||
| Yes | Ref | Ref | ||||
| No/unknown | 8.187 | 7.125-9.422 | <0.001 | 8.53 | 7.308-9.978 | <0.001 |