Table 4.
Multivariate Cox proportional hazards model to examine the effect of demographics and tumor stage and receptor subtypes.
| Variable | Hazard ratio |
P-value |
90% Confidence Intervals | ||
|---|---|---|---|---|---|
| Age | <45 | Ref. | Ref. | Ref. | Ref. |
| 45-64 | 1.53 | 0.47 | 0.58 | 4.03 | |
| >65 | 1.48 | 0.55 | 0.51 | 4.28 | |
| Tumor stage | III | Ref. | Ref. | Ref. | Ref. |
| IV | 4.99 | 0.00 | 2.30 | 10.83 | |
| Tumor receptor subtypes | ER+/PR+ | Ref. | Ref. | Ref. | Ref. |
| ER-/PR- | 4.74 | 0.01 | 1.88 | 11.95 | |
| *Not done/ Unknown | 15.69 | 0.00 | 6.09 | 40.42 | |
Ref. = variables for which the model was adjusted.
Variables with significant p values are in boldface.
*Not done/ Unknown= the patient died before the test could be performed and unknown tumor receptor subtypes