Table 2.

CGM Intervention and Metrics of Glycemic Control

Variable	Run-in	3 mo	6 mo	9 mo	12 mo	15 mo	18 mo
Dexcom/Medtronic (n/n)	7/4	7/4	7/4	7/4	7/4	7/4	7/4
Insulin requirement (U·kg−1·d−1)	0.5 ± 0.1	—	0.5 ± 0.0	—	0.5 ± 0.0	—	0.5 ± 0.0
Mean glucose (mg/dL)	157 ± 6	159 ± 8	165 ± 10	170 ± 12	166 ± 11	158 ± 7	157 ± 8
Glucose SDa (mg/dL)	71 ± 5	68 ± 6	66 ± 4	68 ± 6	69 ± 6	64 ± 5	63 ± 4
Time with glucose > 180 mg/dL (%)	34 ± 4	32 ± 5	36 ± 5	37 ± 6	35 ± 5	32 ± 4	32 ± 5
Time with glucose < 60 mg/dL (%)	6.5 ± 1.6	4.3 ± 1.2	4.1 ± 1.0	3.6 ± 0.8	3.9 ± 0.8	4.0 ± 0.7	4.0 ± 0.7
Dayb time with glucose < 60 mg/dL (%)	6.2 ± 1.9	3.9 ± 1.1	3.5 ± 0.7	3.6 ± 0.8	3.5 ± 0.7	3.9 ± 0.7	3.6 ± 0.6
Nocturnalc time with glucose < 60 mg/dL (%)	6.8 ± 1.6	5.7 ± 1.7	6.2 ± 2.0	4.1 ± 1.6	5.1 ± 1.7	4.8 ± 1.6	5.2 ± 1.7
No. of severe hypoglycemic events per yd	2.2 ± 0.7	—	1.4 ± 0.6	—	1.2 ± 0.7	—	0.9 ± 0.5

Unless otherwise noted, data are mean ± standard error of the mean.

^a P = 0.07.

^bDay hours defined as 0600 to 0000.

^cNocturnal hours defined as 0000 to 0600.

^d P < 0.01.