Table 3.

Linear regression analyses for the association between laboratory HbA1c, POCT-HbA1c, and estimated HbA1c (30 days), and estimated HbA1c (90 days) in conventional SMBG users

Model	HbA1c parameter	R	R2	Adj R2	Standardize β	B (95% CI)	p value
Unadjusted	eAG-30	0.83	0.689	0.69	0.83	0.97 (0.79–1.16)	< 0.001
	eAG-90	0.81	0.656	0.65	0.81	0.99 (0.79–1.21)	< 0.001
	POCT-HbA1c	0.83	0.689	0.72	0.85	0.94 (0.77–1.11)	< 0.001
Adjusted Module 1	eAG-30	0.84	0.706	0.68	0.83	0.98 (0.76–1.17)	< 0.001
	eAG-90	0.81	0.656	0.64	0.81	0.99 (0.78–1.19)	< 0.001
	POCT-HbA1c	0.86	0.740	0.72	0.86	0.95 (0.77–1.12)	< 0.001
Adjusted Module 2	eAG-30	0.84	0.706	0.67	0.98	0.98 (0.78–1.17)	< 0.001
	eAG-90	0.81	0.656	0.63	0.81	0.99 (0.77–1.20)	< 0.001
	POCT-HbA1c	0.87	0.757	0.73	0.87	0.96 (0.79–1.13)	< 0.001

Dependent variable is laboratory HbA1c, and independent variables are eAG-30, eAG-90, and POCT- HbA1c

Module 1 was adjusted for age and gender, and module 2 was adjusted for all variables in Model 1 plus duration of DM, type of diabetes, and treatment