Maximal Glycemic Difference, the Possible Strongest Glycemic Variability Parameter to Predict Mortality in ICU Patients

Table 2

Comparison of GV parameters between survivors and nonsurvivors.

GV parameters	Survivors (N = 442)	Nonsurvivors (N = 96)	value
Mean blood glucose level	138.8 (118.1, 165.4)	157.9 (129, 182.5)	<0.01
Maximal blood glucose difference (MGD)	66.5 (39.0,114.0)	112 (70.0, 177.0)	<0.01
Standard deviation (SD) of blood glucose	26.2 (15.8, 40.3)	40.3 (25.8, 61.5)	<0.01
Coefficient of variation (CV) of blood glucose	0.2 (0.1, 0.3)	0.3 (0.2, 0.4)	<0.01
J-index	27.1 (19.0, 42.6)	40.0 (23.6, 58.6)	<0.01

All data were described as the median and IQR and analyzed using the Mann–Whitney U-test; value for significance, <0.05.