Table 1.

Linear regression showing the difference in the measurement periods.

Measurement period from baseline	y = TIR (%) or TAR (%) or TBR (%) or average glucose (mg/dL) x = HbA1c (%)
	Best-fit line	95% CI of a slope	R2	P value	Value when x = 7.0
TIR
Within 120 days	y = − 16.41x + 188.6	− 19.39 to − 13.43	0.8881	< 0.0001	73.73
Within 90 days	y = − 16.06x + 185.6	− 19.13 to − 12.98	0.8771	< 0.0001	73.18
Within 60 days	y = − 16.38x + 188.3	− 19.40 to − 13.36	0.8851	< 0.0001	73.64
Within 30 days	y = − 16.69x + 191.4	− 20.30 to − 13.09	0.8489	< 0.0001	74.57
Within 7 days	y = − 16.16x + 187.9	− 21.44 to − 10.89	0.7110	< 0.0001	74.78
TAR
Within 120 days	y = 18.14x − 106.6	15.91 to 20.37	0.9445	< 0.0001	20.38
Within 90 days	y = 17.90x − 104.7	15.69 to 20.11	0.9449	< 0.0001	20.60
Within 60 days	y = 18.30x − 108.2	16.25 to 20.36	0.9541	< 0.0001	19.90
Within 30 days	y = 18.55x − 111.5	15.40 to 21.71	0.9005	< 0.0001	18.35
Within 7 days	y = 18.43x − 110.5	14.17 to 22.70	0.8302	< 0.0001	18.51
TBR
Within 120 days	y = − 1.731x + 17.98	− 3.526 to 0.06383	0.1959	0.0578	5.863
Within 90 days	y = − 1.839x + 19.10	− 3.890 to 0.2112	0.1740	0.0756	6.227
Within 60 days	y = − 1.917x + 19.89	− 3.949 to 0.1137	0.1892	0.0627	6.471
Within 30 days	y = − 1.861x + 20.03	− 3.768 to 0.04726	0.1994	0.0553	7.003
Within 7 days	y = − 2.279x + 22.66	− 5.058 to 0.5013	0.1496	0.1018	6.707
Average glucose
Within 120 days	y = 38.07x − 128.8	34.84 to 41.31	0.9732	< 0.0001	137.69
Within 90 days	y = 37.58x − 125.5	34.03 to 41.13	0.9671	< 0.0001	137.56
Within 60 days	y = 38.40x − 132.5	35.26 to 41.54	0.9751	< 0.0001	136.30
Within 30 days	y = 37.60x − 129.9	32.83 to 42.36	0.9423	< 0.0001	133.30
Within 7 days	y = 36.07x − 117.0	29.99 to 42.14	0.9024	< 0.0001	135.49

TIR time in range (glucose level: 70–180 mg/dL), TAR time above range (glucose level: > 180 mg/dL), TBR time below range (glucose level: < 70 mg/dL), CI confidence interval, R² coefficient of determination.