Table 2.
Bivariate analyses for predictors of PFS and OS
| Characteristic | Median PFS (years) | p | Median OS (years) | p |
|---|---|---|---|---|
| Age | 0.957 | 0.344 | ||
| ≤50 (n = 22) | 10.2 | 11.5 | ||
| >50 (n = 29) | 8.5 | 10.3 | ||
| Menopausal status | 0.943 | 0.499 | ||
| Pre (n = 21) | 8.5 | 10.2 | ||
| Post (n = 30) | 10.2 | 11.8 | ||
| Tumor size | 0.003 | 0.001 | ||
| ≤2 cm (n = 18) | Not reached | 25.4 | ||
| >2 cm (n = 33) | 4.2 | 7.5 | ||
| Nodal status | 0.036 | 0.017 | ||
| Negative (n = 22) | 17.9 | 17.2 | ||
| Positive (n = 29) | 4.0 | 6.7 | ||
| ER status | 0.912 | 0.374 | ||
| Negative (n = 14) | 8.1 | 9.8 | ||
| Positive (n = 30) | 10.2 | 12.9 | ||
| Unknown (n = 7) | 8.5 | 7.6 | ||
| Treatment arm | 0.064 | 0.103 | ||
| MRM (n = 24) | 17.9 | 14.9 | ||
| BCT (n = 27) | 4.2 | 7.6 | ||
| Chemotherapy use | 0.015 | 0.074 | ||
| No (n = 25) | 17.9 | 14.4 | ||
| Yes (n = 26) | 4.0 | 7.1 | ||
| CD44 expression | 0.171 | 0.049 | ||
| Negative (n = 29) | 4.3 | 8.6 | ||
| Positive (n = 22) | 17.9 | 18.9 |
Median PFS and OS values are Kaplan–Meier estimates. p values obtained using Log Rank test
Bold values indicate a statiscally significant result (i.e., p< 0.05)