The Association between Diabetic Retinopathy and Levels of Ischemia-Modified Albumin, Total Thiol, Total Antioxidant Capacity, and Total Oxidative Stress in Serum and Aqueous Humor

Table 3

IMA and total thiol cutoff values and their specificity and sensitivity for prediction of DRP in all diabetic patients.

	Level	Sens.	Spec.	PPV	NPV	Acc.	Area	^c	DBA	^d
IMA	>42	86.36	50.00	63.33	78.57	68.18	0.690	0.031	0.066	0.575
Total thiol	≤3383	81.82	77.27	78.26	80.95	79.55	0.756	0.004

: significance levels of ROC curves; ^d: significance level of difference between two ROC curves; Sens.: sensitivity; Spec.: specificity; PPV: positive predictive value; NPV: negative predictive value; Acc.: accuracy; DBA: difference between areas; IMA: ischemia-modified albumin.