- GLS has a positive correlation, the moderate level with the SOFA score (r = 0.3; p < 0.01), the APACHE II score (r = 0.48; p <0.01), SAPS 2 score (r = 0.31; p < 0.01) and was strongly correlated with the number of organs dysfunction (r = 0.6, p < 0.01).