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Table 1 Calculation of resistance for tumour probe 2.

From: Corticosteroid co-treatment induces resistance to chemotherapy in surgical resections, xenografts and established cell lines of pancreatic cancer

Time Drug Treatments DEX1 DEX2 DEX3 Sum
24 h 0 8/8/8/8 0 0 0 0
  1 8/8/5/5 0 1 1 2
  2 7/8/4/8 0 1 1 2
  3 7/8/8/7 0 1 1 2
48 h 0 8/8/8/8 0 0 0 0
  1 8/8/8/8 0 1 1 2
  2 8/8/8/8 0 1 1 2
  3 8/8/8/8 0 1 1 2
72 h 0 7/8/6/7 0 1 0 1
  1 3/7/6/4 0 0 1 1
  2 7/8/6/8 0 1 1 2
  3 8/5/8/8 0 1 1 2
  1. Time: Cells were treated with chemotherapy for 24, 48 or 72 h. Drug: Cells were left either untreated (0) or were treated with three different concentrations of chemotherapy (1, 2, 3). Treatments: the number of repeated measurements from which means and standard deviations were calculated are indicated. DEX1, DEX2, DEX3: Non-drug treated cells (Drug 0) or drug-treated cells (Drug 1, 2, 3) were treated with three different concentrations of DEX. The value of 0 or 1 was assigned depending on whether or not the DEX group was declared resistant. There is a maximum score of 9 per time point for drug-treated cells. The basal effect of DEX (drug 0 row) was evaluated for its own and is not included in the sum column.