Table 2.

The correlation between stages of DR and the following lipid profiles

Variables	Spearman Correlation Analysis		Partial Correlation Analysis
	r	P-value	r	P-value
RC (mmol/L)	0.360	0.000**	–	–
TC (mmol/L)	0.142	0.002*	0.289a	0.000**
TG (mmol/L)	0.068	0.148	0.324b	0.000**
LDL-C (mmol/L)	−0.016	0.736	0.332c	0.000**
HDL-C (mmol/L)	0.054	0.254	0.327d	0.000**
APOA (g/L)	0.003	0.947	0.334e	0.000**
APOB (g/L)	0.066	0.165	0.329f	0.000**

Abbreviations: APOA apolipoprotein A, APOB apolipoprotein B, RC Remnant cholesterol, TC total cholesterol, TG triglycerides, LDL-C low-density lipoprotein cholesterol, HDL-C high-density lipoprotein cholesterol, APOA apolipoprotein A, APOB apolipoprotein B

Notes: associations between serum lipid profile and stages of DR by Spearman correlation analysis and the association between RC and stages of DR by partial correlation analysis ^aAdjusted for TC; ^bAdjusted for TG; ^cAdjusted for LDL-C; ^dAdjusted for HDL; ^eAdjusted for APOA; ^fAdjusted for APOB. *P < 0.05, **P < 0. 001