Correlation of biomarkers thiobarbituric acid reactive substance, nitric oxide and central subfield and cube average thickness in diabetic retinopathy: a cross-sectional study

Table 2 Univariate linear regression analysis taking visual acuity as a dependent variable with TBARS, NO, CST and CAT as independent variables followed by multivariate linear regression analysis adjusted for duration of diabetes and HbA1c

Independent variables	logMar visual acuity as dependent variable
	Univariate analysis		Multivariate analysis (adjusted) (r² = 0.96)
	B	p	B	p
TBARS	0.22	0.004	0.07	<0.001
NO	0.006	<0.001	0.001	0.001
CST	0.005	<0.001	0.004	<0.001
CAT	0.005	<0.001	0.001	0.41