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. 2014 Apr 1;9(4):e93791. doi: 10.1371/journal.pone.0093791

Figure 1. Correlation of plasma IGFBP-2 level with age and KPS in GBM patients after postoperative radiotherapy plus chemotherapy.

Figure 1

(A, B) Box plots demonstrate that older age (≥60 years) or lower KPS values (<78.7) correlate with markedly higher plasma IGFBP-2 level (ng/ml) respectively (P<0.05). (C, D) Box plots show that older age (≥60 years) or lower KPS values (<78.7) are associated with significantly shorter overall survival (P<0.05).