highly significantp < 0.0001
Association between the i-Grade and the G was highly significant ( p < 0.0001, Figure 4 ): all cases of G1 were i-Grade-Low (n = 19) whereas G2 and G3 were increasingly i-Grade-High (21%, and 58%, respectively).
Association between the i-Grade and the G was highly significant ( p < 0.0001, Figure 4 ): all cases of G1 were i-Grade-Low (n = 19) whereas G2 and G3 were increasingly i-Grade-High (21%, and 58%, respectively).