Table 3.

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

Variables
Dependent	Independent	Adjusted OR (95% CI)	P value
DR	NC parameters
	Number	0.58 (0.32-1.06)	0.08
	Length	0.24 (0.11-0.55)	< 0.001
	Width	0.26 (0.11-0.60)	0.002
	Turbidity	0.40 (0.21-0.75)	0.005

OR, odds ratio; CI, confidence interval; DR, 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