Table 4.

Logistic regression analysis of independent variables affecting the presence of PDR in diabetic patients

Variables
Dependent	Independent	Adjusted OR (95% CI)	P value
PDR	NC parameters
	Number	0.26 (0.090-0.77)	0.02
	Length	0.17 (0.047-0.59)	0.005
	Width	0.26 (0.080-0.82)	0.02
	Turbidity	0.30 (0.11-0.79)	0.02

OR, odds ratio; CI, confidence interval; PDR, proliferative diabetic retinopathy; NC, nailfold capillary. Differences were considered significant at the P < 0.05 level. All NC parameters were adjusted by age, sex, HT, DL, SBP, eGFR, and HbA_1c