Table 3.
Predictors of survival.
| Variables | MST | Univariate analysis | Multivariable analysis | ||||
|---|---|---|---|---|---|---|---|
| HR | 95% CI | P value | HR | 95% CI | P value | ||
| Race | 0.298 | ||||||
| White | 30 | Reference | |||||
| Other | 25 | 1.139 | 0.891-1.456 | ||||
| Sex | 0.017 | 0.060 | |||||
| Female | 33 | Reference | Reference | ||||
| Male | 25 | 1.270 | 1.044-1.546 | 1.212 | 0.992-1.480 | ||
| Age, years | 0.004 | 0.004 | |||||
| ≤ 60 | 32 | Reference | Reference | ||||
| > 60 | 28 | 1.217 | 0.997-1.486 | 1.355 | 1.102-1.665 | ||
| Year of diagnosis | 0.039 | 0.038 | |||||
| 2004-2010 | 25 | Reference | Reference | ||||
| 2011-2016 | 32 | 0.831 | 0.656-0.989 | 0.803 | 0.653-0.989 | ||
| Tumor differentiation | < 0.001 | 0.002 | |||||
| Well-moderate | 36 | Reference | Reference | ||||
| Poor-undifferentiated | 19 | 1.568 | 1.280-1.922 | 1.391 | 1.129-1.713 | ||
| Tumor size, cm | 0.192 | ||||||
| ≤ 5 | 32 | Reference | |||||
| > 5 | 25 | 1.141 | 0.936-1.391 | ||||
| T classification | < 0.001 | 0.009 | |||||
| T1-T2 | 33 | Reference | Reference | ||||
| T3-T4 | 18 | 1.730 | 1.382-2.166 | 1.366 | 1.079-1.728 | ||
| M classification | < 0.001 | 0.007 | |||||
| M0 | 32 | Reference | Reference | ||||
| M1 | 14 | 1.994 | 1.420-2.798 | 1.609 | 1.137-2.277 | ||
| Harvested lymph nodes | 0.003 | 0.867 | |||||
| 1-5 | 32 | Reference | Reference | ||||
| ≥ 6 | 24 | 1.369 | 1.113-1.684 | 0.981 | 0.784-1.227 | ||
| New nodal category | < 0.001 | < 0.001 | |||||
| N0 | 47 | Reference | Reference | ||||
| N1 | 18 | 2.370 | 1.914-2.935 | 2.282 | 1.818-2.863 | ||
| N2 | 10 | 4.657 | 3.304-6.562 | 3.571 | 2.442-5.224 | ||
MST, median survival time (months); HR, hazard ratio; CI, confidence interval.