highly significantp < 0.001
borderline significantp = 0.08
The difference in risk of relapse between the G2I-1 and G2I-2 tumors was borderline significant (Odd ratio: 0.16 [0.2-1.2] p = 0.08) whereas that between the G2I-2 and G2I-3 tumors was highly significant (odd ratio: 8.5 [3.2-22.6] p < 0.001) in univariate analysis.