Table 3.
Kaplan-Meier Survival Analysis for Disease-Free Survival According to Nodal Metastasis and Filter Levels.
| Mean (month) | 95% CI for the mean survival | P value |
*LOOCV P value |
|
|---|---|---|---|---|
| Nodal status | ||||
| pN− | 34.259 | 22.943 to 45.576 | 0.0013 | |
| pN+ | 12.959 | 8.247 to 17.671 | ||
| Filter = 0 | ||||
| Average ≤ 1098.3434781 | 15.913 | 9.972 to 21.855 | 0.002 | 0.004 |
| Average > 1098.3434781 | 39.21 | 25.746 to 52.674 | ||
| Contrast ≤ 204.3933771 | 14.815 | 8.456 to 21.173 | 0.0026 | 0.026 |
| Contrast > 204.3933771 | 33.434 | 22.208 to 44.659 | ||
| Correlation > 0.002776 | 13.174 | 6.723 to 19.624 | 0.0131 | 0.12 |
| Correlation ≤ 0.002776 | 29.473 | 20.359 to 38.587 | ||
| Standard deviation ≤ 16.194633 | 11.877 | 6.719 to 17.034 | 0.0006 | 0.002 |
| Standard deviation > 16.194633 | 33.051 | 22.839 to 43.262 | ||
| Filter = 1 | ||||
| Average ≤ 1084.931174 | 12.587 | 7.567 to 17.607 | 0.0035 | 0.582 |
| Average > 1084.931174 | 32.016 | 21.881 to 42.152 | ||
| Contrast ≤ 905.806122 | 19.058 | 12.571 to 25.544 | 0.0083 | 0.019 |
| Contrast > 905.806122 | 27.328 | 18.624 to 36.032 | ||
| Correlation > 0.000517 | 18.89 | 12.490 to 25.289 | 0.0056 | 0.012 |
| Correlation ≤ 0.000517 | 28.313 | 19.390 to 37.235 | ||
| Standard deviation std ≤ 31.434868 | 19.003 | 12.633 to 25.373 | 0.0169 | 0.042 |
| Standard deviation std > 31.434868 | 33.911 | 20.819 to 47.003 | ||
| Filter = 1.5 | ||||
| Average ≤ 1088.576271 | 14.087 | 8.867 to 19.307 | 0.0061 | 0.056 |
| Average > 1088.576271 | 33.331 | 22.254 to 44.407 | ||
| Contrast ≤ 89.964225 | 9.113 | 5.053 to 13.174 | 0.0003 | 0.001 |
| Contrast > 89.964225 | 29.913 | 21.190 to 38.637 | ||
| Correlation > 0.00398 | 9.297 | 4.777 to 13.817 | 0.0013 | 0.258 |
| Correlation ≤ 0.00398 | 28.51 | 20.212 to 36.808 | ||
| Standard deviation ≤ 13.505866 | 10.281 | 5.716 to 14.846 | 0.0081 | 0.416 |
| Standard deviation > 13.505866 | 28.288 | 19.944 to 36.633 | ||
| Filter = 2 | ||||
| Average ≤ 1091.06089 | 16.711 | 10.231 to 23.192 | 0.0102 | 0.046 |
| Average > 1091.06089 | 34.953 | 22.765 to 47.142 | ||
| Contrast ≤ 34.290079 | 9.909 | 5.473 to 14.345 | 0.004 | 0.062 |
| Contrast > 34.290079 | 28.685 | 20.252 to 37.118 | ||
| Correlation > 0.008031 | 13.208 | 7.956 to 18.461 | 0.0166 | 0.049 |
| Correlation ≤ 0.008031 | 29.884 | 20.293 to 39.475 | ||
| Standard deviation ≤ 10.579722 | 12.884 | 8.028 to 17.740 | 0.0085 | 0.009 |
| Standard deviation > 10.579722 | 31.134 | 21.078 to 41.190 | ||
| Filter = 2.5 | ||||
| Average ≤ 1092.655696 | 16.533 | 10.171 to 22.896 | 0.0075 | 0.042 |
| Average > 1092.655696 | 35.692 | 23.260 to 48.124 | ||
Note: *LOOCV (Leave-one-out cross validation).