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Table 2 Change in clinical variables and indices of cardiovascular autonomic neuropathy over 2–3 years

From: Clinical factors associated with the recovery of cardiovascular autonomic neuropathy in patients with type 2 diabetes mellitus

Change in variables (Δ)

Non-recovery (n = 532)

Recovery (n = 227)

P value

Δ Body weight (kg)

− 0.1 ± 3.3

− 0.7 ± 3.4

0.047

Δ Body mass index (kg/m2)

− 0.1 ± 1.2

− 0.2 ± 1.2

0.217

Δ Systolic BP (mmHg)

− 8.4 ± 17.4

− 6.7 ± 18.0

0.218

Δ Diastolic BP (mmHg)

− 1.5 ± 29.7

− 1.6 ± 11.0

0.935

Δ Total cholesterol (mg/dL)

− 6.8 ± 31.6

− 9.9 ± 38.7

0.245

Δ Triglycerides (mg/dL)

5.1 ± 58.4

− 2.7 ± 75.8

0.126

Δ HDL-C (mg/dL)

2.6 ± 24.9

0.9 ± 11.3

0.340

Δ LDL-C (mg/dL)

− 5.9 ± 34.1

− 9.3 ± 33.6

0.212

Δ Fasting plasma glucose (mg/dL)

− 6.7 ± 66.7

− 9.8 ± 58.7

0.540

Change in HbA1c

 ΔHbA1c (%)

0.18 ± 1.18

− 0.26 ± 1.23

< 0.001

 Mean HbA1c (%)

7.1 ± 1.0

7.1 ± 0.9

0.850

 Adjusted SD of HbA1c (%)a

0.50 ± 0.45

0.48 ± 0.40

0.521

 CV of HbA1c

6.7 ± 5.8

6.4 ± 4.7

0.397

Change in medication

 Δ Use of insulin, n (%)

24 (4.5)

13 (5.7)

0.477

 Δ Use of oral anti-diabetes drug, n (%)

205 (38.5)

113 (49.8)

0.004

 Δ Use of statin, n (%)

96 (18.0)

41 (18.1)

0.996

 Δ Use of anti-hypertensive drug, n (%)

133 (25.0)

47 (20.8)

0.214

 Δ Use of anti-platelet/anti-coagulant, n (%)

88 (16.5)

27 (11.9)

0.107

Change in indices of heart rate variability

 Δ Ln SDNN (ms)

− 0.02 ± 0.52

0.15 ± 0.45

< 0.001

 Δ Ln RMSSD (ms)

− 0.03 ± 0.64

0.02 ± 0.59

0.302

 Δ Ln LF (ms2)

0.33 ± 1.04

0.40 ± 1.07

0.341

 Δ Ln HF (ms2)

− 0.04 ± 1.22

0.04 ± 1.06

0.384

 Δ Ln LF:HF

0.08 ± 1.23

− 0.18 ± 1.23

0.009

Δ Total CAN score

0.1 ± 0.4

− 1.1 ± 0.2

< 0.001

  1. ΔChange represents a variable’s value at follow-up subtracted from the value obtained at baseline
  2. BP, blood pressure; HDL-C, high density lipoprotein cholesterol; LDL-C, low density lipoprotein cholesterol; SDNN, standard deviation of all NN intervals; RMSSD, root mean square of the successive differences; LF, low frequency; HF, high frequency; CAN, cardiovascular autonomic neuropathy
  3. aSD of HbA1c divided by [n/(n–1)]0.5, where n is the number of HbA1c measurements