Table 3 Cox Regression model for the prediction of OS using CTC count by CellSearch® and covariates
Characteristic | HR | 95% CI | p-value | |
|---|---|---|---|---|
Age | Per year | 1.00 | 0.97–1.03 | 0.91 |
Hormone receptor status | Negative | 1 (reference) | ||
Positive | 0.44 | 0.17–0.85 | 0.08 | |
HER2 Status | Negative | 1 (reference) | ||
Positive | 0.32 | 0.13–0.85 | 0.02 | |
Grading | Per grade | 1.08 | 0.58–2.02 | 0.82 |
Therapy line | Per line | 1.01 | 0.78–1.32 | 0.93 |
CTC count | 0 | 1 (reference) | ||
≥1 | 5.20 | 2.18–12.43 | 0.0002 |