Table 4.

Result of multivariate linear regression analysis for evaluation of the variable effects on improvement of best-corrected visual acuity (BCVA)

p value	r	Variable
0.006	0.348	Age
0.65	−0.06	Duration of diabetes
0.043	0.145	Frequency of injection
0.064	−0.241	Macular thickness before intervention
0.9	−0.01	HbA1c