An Evaluation of the Accuracy of a Flash Glucose Monitoring System in Children with Diabetes in comparison with Venous Blood Glucose

Table 2

Difference analysis compared with venous reference under various conditions.

		MARD (%)	value	CEG
				A	B
Total	469	11.67	─	94.67	5.33
Days of wear
2	80	11.53	0.25	93.75	6.25
3	83	9.66		95.18	4.82
6	87	11.79		96.55	3.44
7	88	10.89		96.59	3.41
12	65	13.18		95.38	4.62
13	66	13.92		89.39	10.61
Glucose level
<4 mmol/L	79	16.89	<0.0001	91.14	8.86
4~10 mmol/L	292	11.58		94.52	5.48
>10 mmol/L	98	7.79		97.96	2.04
Time interval
7:00~21:00	273	10.88	0.03	95.24	4.76
21:00~7:00	196	12.77		93.88	6.12

Wilcoxon/Kruskal-Wallis test. MARD: mean absolute relative difference; CEG: consensus error grid.