(a)

Parameter	PDR 62	NPDR 63	Without DR 50
Cholesterol total (mmol/L)	6.11 ± 1.02	5.71 ± 1.04**	5.88 ± 1.07*
HDL (mmol/L)	1.39 ± 0.34	1.31 ± 0.33*	1.38 ± 0.37*
LDL (mmol/L)	4.35 ± 0.37	4.09 ± 0.31***	4.19 ± 0.30**
Triglycerides (mmol/L)	1.86 ± 0.62	1.56 ± 0.64**	1.58 ± 0.51**
Fasting plasma glucose (mg/dL)	172 ± 26	135 ± 28***	147 ± 24***
HbA1c (%)	8.8 ± 0.6	7.2 ± 0.7***	6.4 ± 0.8***

Comparison between PDR and other groups: P = NS*; P < 0.05**; P < 0.001***.