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Table 2 Biochemical factors investigated and categorizing

From: Prognostic and predictive value of clinical and biochemical factors in breast cancer patients with bone metastases receiving "metronomic" zoledronic acid

Biochemical factor category No. %
Baseline NTx normal ≤ 18 nM BCE 30 50
  abnormal > 18 nM BCE 30 50
Baseline VEGF normal ≤ 500 pg/ml 30 50
  abnormal > 500 pg/ml 30 50
Baseline CEA normal ≤ 10 μg/L 42 70
  abnormal > 10 μg/L 18 30
Baseline CA 15-3 normal ≤ 51 U/mL 21 35
  abnormal > 51 U/mL 39 65
NTx (days 90) normal ≤ 18 nM BCE 34 56.7
  abnormal > 18 nM BCE 16 43.3
VEGF (days 90) normal ≤ 500 pg/ml 29 48.3
  abnormal > 500 pg/ml 21 42.7