Correlation between key indicators of continuous glucose monitoring and the risk of diabetic foot

Table 2 Comparison of continuous glucose monitoring-derived metrics between the non-diabetic foot and diabetic foot groups

Variables	NDF (n = 294)	DF (n = 297)	P value
CGM-derived metrics
MBG, mmol/L	8.23 (7.33-9.81)	9.20 (8.00-10.70)	< 0.001
SD, mmol/L	2.34 (1.80-2.92)	2.40 (1.80-3.25)	0.129
CV, %	26.80 (22.11-32.80)	26.32 (20.56-33.78)	0.496
LAGE	11.82 (8.98-14.71)	11.50 (8.80-15.25)	0.929
GRI	24.52 (10.21-42.77)	35.98 (18.87-59.29)	< 0.001
TIR, %	76.90 (58.00-88.73)	65.91 (43.68-81.95)	< 0.001
TAR, %	20.26 (9.37-41.59)	32.57 (16.26-55.43)	< 0.001
TAR level 1, %	17.03 (8.44-31.71)	25.35 (13.56-38.90)	< 0.001
TAR level 2, %	2.81 (0.00-8.60)	5.04 (0.00-14.97)	< 0.001
TBR, %	0.00 (0.00-1.24)	0.00 (0.00-0.69)	0.114
TBR level 1, %	0.00 (0.00-1.08)	0.00 (0.00-0.62)	0.197
TBR level 2, %	0.00 (0.00-0.00)	0.00 (0.00-0.00)	0.031
CGM-derived indicator achievement, n (%)
CV target	250 (85.03)	240 (80.81)	0.172
TIR target	180 (61.22)	128 (43.10)	< 0.001
TAR level 1 target	196 (66.67)	146 (49.16)	< 0.001
TAR level 2 target	182 (61.90)	148 (49.83)	0.003
TBR level 1 target	262 (89.12)	269 (90.57)	0.558
TBR level 2 target	279 (94.90)	284 (95.62)	0.678

Bold values indicate P < 0.05. Data were expressed as medians (25^th-75^th percentiles) for skewed distribution variables. Categorical variables were expressed as frequency (percentage). NDF: Non-diabetic foot; DF: Diabetic foot; CGM: Continuous glucose monitoring; MBG: Mean blood glucose; CV: Coefficient of variation; LAGE: Maximum glucose fluctuation range; GRI: Glycemia risk index; TIR: Time in range; TAR: Time above range; TBR: Time below range.