Research Article

Increased Arterial Stiffness as a Predictor for Onset and Progression of Diabetic Retinopathy in Type 2 Diabetes Mellitus

Table 2

Clinical characteristics of patients in the follow-up analysis divided by tertiles of baPWV.

T1 baPWVT2 baPWVT3 baPWV value
()()()

Age (years)<0.001
Gender (male/female)148/71123/95115/1110.001
Body mass index (kg/m2)0.202
Current smoker (, %)65 (29.7%)56 (25.7%)41 (18.2%)0.017
Alcohol consumption (, %)35 (16.0%)37 (17.0%)41 (18.2%)0.821
Hypertension (, %)64 (29.2%)125 (57.3%)171 (75.7%)<0.001
 Systolic BP (mmHg)<0.001
 Diastolic BP (mmHg)0.001
 Antihypertensive drugs39 (17.8%)76 (34.9%)114 (50.9%)<0.001
History of CVD (, %)24 (11.0%)27 (12.4%)35 (15.5%)0.382
Duration of T2DM (months)36.0 (1.0, 76.5)63.5 (15.8, 148.0)109.0 (38.00, 167.0)<0.001
HbA1c (%)0.020
Fasting serum glucose (mmol/L)0.208
Fasting C-peptide (ng/mL)0.149
Hyperlipidemia (, %)154 (70.3%)146 (67.0%)167 (73.9%)0.355
 Triglycerides (mmol/L)1.65 (1.10, 2.52)1.54 (1.06, 2.50)1.59 (1.09, 2.33)0.465
 Total cholesterol (mmol/L)0.983
 HDL-c (mmol/L)0.237
 LDL-c (mmol/L)0.944
 Drugs for hyperlipidemia58 (26.5%)60 (27.5%)72 (31.9%)0.477
ALT (U/L)0.016
AST (U/L)0.209
Creatinine (μmol/L)0.552
Urea nitrogen (mmol/L)<0.001
eGFR (mL/min/1.73 m2)<0.001
Uric acid (μmol/L)0.479
Albuminuria0.002
 Normoalbuminuria (, %)169 (80.1%)159 (76.4%)139 (63.2%)
 Microalbuminuria (, %)35 (16.6%)42 (20.2%)70 (31.8%)
 Macroalbuminuria (, %)7 (3.3%)7 (3.4%)11 (5.0%)
baPWV (m/s)<0.001
Newly onset or progression of DR (, %)26 (11.9%)41 (18.7%)44 (19.6%)0.052

Continuous variables are shown as for parametric data or median (interquartile ranges) for nonparametric data. Categorical variables are expressed as numbers and percentages. Abbreviations: BP: blood pressure; CVD: cardiovascular disease; HbA1c: hemoglobin A1c; HDL-c: high-density lipoprotein cholesterol; LDL-c: low-density lipoprotein cholesterol; ALT: alanine aminotransferase; AST: aspartate aminotransferase; eGFR: estimated glomerular filtration rate; baPWV: brachial-ankle pulse wave velocity; DR: diabetic retinopathy. indicates the difference among the three groups reaching significance.