Table 4.

Correlation Coefficients Among the Measures of Glycemic Variability on 70 Subjects with Normoglycemia Using a Two-Tailed Spearman Correlation

		CONGA	LI	J-Index	LBGI†	HBGI†	GRADE†	MODD	MAGE-CGM	ADRR†	M-value†	MAG
SD	Correlation	0.30*	0.17	0.84**	−0.15	0.20	0.28*	0.21	−0.08	0.25*	−0.17	0.21
	Significance	0.01	0.16	<0.001	0.22	0.09	0.02	0.08	0.50	0.04	0.16	0.08
CONGA	Correlation		−0.18	0.70**	−0.88**	0.10	0.08	−0.06	−0.03	0.35**	−0.87**	−0.13
	Significance		0.14	<0.001	<0.001	0.39	0.52	0.63	0.78	0.00	<0.001	0.27
LI	Correlation			0.07	0.27*	0.63**	0.33**	0.74**	0.67**	0.59**	0.28*	0.82*
	Significance			0.55	0.02	<0.001	0.00	<0.001	<0.001	<0.001	0.02	0.01
J-Index	Correlation				−0.55**	0.26*	0.29*	0.11	−0.05	0.42**	−0.56**	0.12
	Significance				<0.001	0.03	0.01	0.38	0.67	<0.001	<0.001	0.30
LBGI†	Correlation					0.03	0.09	0.31**	0.12	−0.19	0.99**	0.21
	Significance					0.83	0.45	0.01	0.32	0.11	<0.001	0.08
HBGI†	Correlation						0.38**	0.51**	0.40**	0.93**	−0.01	0.45*
	Significance						0.00	<0.001	<0.001	<0.001	0.91	0.01
GRADE†	Correlation							0.40**	0.16	0.48**	0.06	0.31*
	Significance							<0.001	0.20	<0.001	0.60	0.01
MODD	Correlation								0.57**	0.51**	0.30*	0.60*
	Significance								<0.001	<0.001	0.01	<0.001
MAGE-CGM	Correlation									0.41**	0.15	0.49**
	Significance									<0.001	0.22	<0.001
ADRR†	Correlation										−0.22	0.44*
	Significance										0.06	<0.001
M-value	Correlation											0.23
	Significance											0.06

Significance of correlations: ^*at the 0.05 level, ^**at the 0.01 level.

^†Indicates methods that assess the quality of glycemia.

ADRR, average daily risk ratio; CGM, continuous glucose monitoring; CONGA, continuous overlapping net glycemic action; GRADE, Glycemic Risk Assessment of Diabetes Equation; HBGI, High Blood Glucose Index; LBGI, Low Blood Glucose Index; LI, Lability Index; MAG, mean absolute glucose; MAGE, mean amplitude of glucose excursions; MODD, mean of daily differences.