Elevated Serum Total Bilirubin Concentrations Are Negatively Associated with Diabetic Retinopathy among the Chinese Northeastern Population

Table 3

Comparison of clinical characteristics according to STBC tertiles in total subjects.

Characteristics	Q1	Q2	Q3
	(<10.81)	(10.81–14.61)	(>14.61)
n	248	250	244
Age (year)	58.92 ± 11.02	60.02 ± 10.51	59.70 ± 10.35
DM duration (year)	12.12 ± 7.47	12.08 ± 7.32	8.79 ± 6.77^ab
BMI (kg/m^2)	25.03 ± 2.88	25.16 ± 2.90	24.84 ± 2.75
SBP (mmHg)	144.19 ± 21.38	138.39 ± 19.02^a	138.87 ± 19.77^a
DBP (mmHg)	83.61 ± 11.10	82.71 ± 11.68	84.57 ± 11.14
FPG (mmol/L)	9.60 ± 4.19	9.58 ± 3.48	9.87 ± 3.32
HbA1c (%)	9.25 ± 1.43	9.38 ± 1.52	9.28 ± 1.62
TC (mmol/L)	5.02 ± 1.14	4.80 ± 0.97^a	4.77 ± 1.02^a
TG (mmol/L)	2.28 ± 1.95	1.98 ± 1.58	1.85 ± 1.74^a
HDL-C (mmol/L)	1.12 ± 0.34	1.15 ± 0.32	1.17 ± 0.30
LDL-C (mmol/L)	3.07 ± 0.86	2.96 ± 0.81	2.93 ± 0.83
BUN (mmol/L)	8.14 ± 5.18	6.41 ± 3.30^a	5.51 ± 1.64^ab
Cr (μmol/L)	157.88 ± 188.64	109.82 ± 100.88^a	90.55 ± 19.60^a
UA (μmol/L)	327.97 ± 96.72	311.42 ± 89.86^a	292.90 ± 73.17^ab
Fasting insulin (μU/mL)	14.46 ± 11.94	13.56 ± 11.19	12.02 ± 10.62^a
Urine microalbumin (mg/L)	87.60 ± 77.89	67.70 ± 64.14^a	57.17 ± 60.86^a
C-peptide (ng/mL)	2.62 ± 1.41	2.39 ± 1.06	2.38 ± 1.07
Fibrinogen (g/L)	3.68 ± 1.60	3.34 ± 1.03	3.10 ± 0.79
DR (%)	85.1	74.0	56.1

^a versus Q1 and ^b versus Q2 (one-way ANOVA and post hoc test).