Table 4.

The correlation between RC value and other potential risk factors of DR

Variables	Spearman Correlation Analysis
	r	P-value
Age (years)	−0.007	0.884
Diabetes duration (years)	0.068	0.149
BMI (kg/m2)	0.104	0.027*
Fasting C-pepide (ng/ml)	0.007	0.885
HbA1c (%)	0.101	0.031*
TC (mmol/L)	0.559	0.000**
TG (mmol/L)	0.447	0.000**
HDL-C (mmol/L)	0.085	0.069
LDL-C (mmol/L)	0.136	0.002*
APOA (g/L)	0.033	0.49
APOB (g/L)	0.398	0.000*
eGFR (ml/min/1.73m2)	−0.004	0.927
UA (μmol/L)	0.15	0.000**
mAlb (mg/24 h)	0.179	0.000**
NLR	0.035	0.463
TyG-index	0.488	0.000**

Abbreviations: DR diabetic retinopathy, BMI body mass index, HbA1c glycated hemoglobin, TC total cholesterol, TG triglyceride, HDL high-density lipoprotein, LDL low-density lipoprotein, APOA apolipoprotein A, APOB apolipoprotein B, eGFR estimated glomerular filtration rate, TyG-index triglyceride glucose index, UA Uric Acid, NLR Neutrophil–Lymphocyte ratio, TyG-index triglyceride glucose index, mAlb microalbuminuria

Notes: Spearman Correlation Analysis. *P < 0.05, **P < 0. 001