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Table 4 distribution of the three classes of G2I according to array-CGH clusters (%)

From: An array CGH based genomic instability index (G2I) is predictive of clinical outcome in breast cancer and reveals a subset of tumors without lymph node involvement but with poor prognosis

  Cluster a n = 34 Cluster b n = 25 Cluster c n = 16 Cluster d n = 13 Cluster e n = 35 Cluster f n = 12 All n = 135
G2I-1 6 (18) 6 (24) 3 (19) 1 ( 8) 3 ( 9) 0 19 (14)
G2I-2 26 (76) 19 (76) 10 (62) 12 (92) 21 (60) 0 88 (65)
G2I-3 2 ( 6) 0 3 (19) 0 11 (31) 12 (100) 28 (21)