Research Article

Combination of Composite Autonomic Symptom Score 31 and Heart Rate Variability for Diagnosis of Cardiovascular Autonomic Neuropathy in People with Type 2 Diabetes

Table 1

Clinical characteristics of the study population.

VariableOverall
()
Non-CAN
()
CAN
()
value

Female, (%)37(35.9)18(30.0)19(44.2)0.139
Age (years)<0.001
Duration of diabetes (years)8(3, 15)5(2, 10)15(6, 18)<0.001
Smoking history, (%)24(23.3)12(20.0)12(27.9)0.349
Drinking history, (%)23(22.3)15(25.0)8(18.6)0.442
Hypertension, (%)49(47.6)31(51.7)18(41.9)0.326
Family history of diabetes, (%)45(43.7)27(45.0)18(41.9)0.751
Body mass index (kg/m2)0.947
Waist-hip ratio0.556
Resting heart rate (bpm)0.013
Blood pressure (mmHg)
 Systolic BP0.508
 Diastolic BP0.404
Microvascular complications, (%)
 DSPN67(65.0)32(53.3)35(81.4)0.003
 Diabetic nephropathy43(41.7)19(31.7)24(55.8)0.014
 Diabetic retinopathy31(30.1)9(15.0)22(51.2)<0.001
Laboratory variables
 Fasting blood glucose (mmol/L)0.764
 HbA1c (%)9.6 ± 2.99.7 ± 2.50.864
 Total cholesterol (mmol/L)0.579
 Triglyceride (mmol/L)0.095
 LDL-c (mmol/L)0.425
 HDL-c (mmol/L)0.644
 UACR (mg/g)18.0(7.8, 81.9)13.4(6.7, 54.7)44.5(10.4, 152.4)0.006

Data are , median (IQR), or (%). CAN: cardiovascular autonomic neuropathy; BP: blood pressure; DSPN: distal symmetric polyneuropathy; HbA1c: glycated hemoglobin; LDL-c: low-density lipoprotein cholesterol; HDL-c: high-density lipoprotein cholesterol; UACR: urinary albumin-to-creatinine ratio. (non-CAN group vs. CAN group); (non-CAN group vs. CAN group); (non-CAN group vs. CAN group).