Prognostic factors for overall survival on univariate analysis (log-rank test) in all patients (n = 114)
| Patients n = 114 | % | χ2 | P | |
|---|---|---|---|---|
| Clinical stage IV | 39 | 34 | 61.52 | <0.0001 |
| Cytokeratin-positive cells in bone marrow | 67 | 59 | 12.67 | 0.0004 |
| Cytokeratin-positive cells in peripheral blood | 28 | 25 | 12.49 | 0.0004 |
| Pre- versus postmenopausal | 53 | 46 | 3.91 | 0.047 |
| Ductal versus other histology | 99 | 87 | 1.99 | 0.157 |
| Estrogen receptor negative versus estrogen receptor positive | 40 | 35 | 1.79 | 0.181 |