Table 2.
Multivariate Cox regression analysis of parameters possibly related to overall survival of metastatic breast cancer patients.
| Variable | Hazard ratio | 95% confidence interval | P value | |
|---|---|---|---|---|
| Lower limit | Upper limit | |||
| Thrombocytosis | 1.75 | 1.01 | 3.02 | 0.043 |
| Age | 1.02 | 1.011 | 1.044 | 0.0009 |
| ER/PR status | 0.50 | 0.31 | 0.78 | 0.0028 |
| Her-2 status | 0.93 | 0.57 | 1.51 | 0.77 |
| Grade | 1.48 | 0.98 | 2.21 | 0.05 |
| Metastatic at diagnosis | 0.82 | 0.54 | 1.25 | 0.36 |
| Site of metastasis (bone only versus other) | 0.79 | 0.48 | 1.29 | 0.34 |
| 1st metastatic treatment (none or hormonotherapy versus chemotherapy) | 1.47 | 0.92 | 2.33 | 0.10 |