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Table 4 Cox Regression model for the prediction of OS using CTC count by the filtration based method and covariates

From: Filtration based assessment of CTCs and CellSearch® based assessment are both powerful predictors of prognosis for metastatic breast cancer patients

Characteristic   HR 95% CI p-value
Age Per year 0.99 0.96–1.02 0.47
Hormone receptor status Negative 1 (reference)   
  Positive 1.50 0.56–4.06 0.41
HER2 Status Negative 1 (reference)   
  Positive 0.89 0.35–2.25 0.80
Grading Per grade 1.45 0.70–3.00 0.32
Therapy line Per line 0.98 0.75–1.26 0.85
CTC count 0 1 (reference)   
  ≥1 4.20 1.86–9.46 0.001
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