Performance of flash continuous glucose monitoring and glycemic marker correlations in Chinese pregnant women with non-type 1 diabetes

Table 2 Mixed-effects models predicting the relationship between mean glucose and hemoglobin A1c in pregnant participants with gestational diabetes mellitus and type 2 diabetes mellitus.

Model	AIC	Fixed effects	Intercept (95%CI)	P value	HbA1c	P value	Other covariates	P value
1	1019.85	Intercept only	5.548 (5.412-5.683)	< 0.001	-	-	-	-
2	901.65	HbA1c	1.957 (1.345-2.569)	< 0.001	0.669 (0.557-0.782)	< 0.001	-	-
3	895.41	HbA1c	1.619 (0.962-2.277)	< 0.001	0.685 (0.573-0.798)	< 0.001	-	-
		Gestational age1					0.010 (0.003-0.017)	0.004
4	899.29	HbA1c	1.529 (0.800-2.259)	< 0.001	0.639 (0.524-0.754)	< 0.001	-	-
		Prepregnancy BMI					0.024 (0.002-0.047)	0.036
5	689.21	HbA1c	1.956 (1.094-2.818)	< 0.001	0.715 (0.597-0.834)	< 0.001	-	-
		Hemoglobin					-0.002 (-0.007 to 0.004)	0.492
6	889.26	HbA1c	2.093 (1.417-2.770)	< 0.001	0.665 (0.552-0.778)	< 0.001	-	-
		Serum iron					-0.001 (-0.003 to 0.001)	0.349
7	676.89	HbA1c	1.165 (0.095-2.235)	0.033	0.692 (0.568-0.816)	< 0.001	-	-
		Gestational age					0.010 (0.002-0.017)	0.010
		Prepregnancy BMI					0.029 (0.005-0.054)	0.018
		Hemoglobin					-0.002 (-0.008 to 0.003)	0.371
		Serum iron					0.000 (-0.002 to 0.003)	0.876

¹Gestational age: Gestational week at the point of data collection.

CI: Confidence intervals; HbA1c: Hemoglobin A1c; AIC: Akaike information criterion; BMI: Body mass index.