Table 2.
Heart rate variability (HRV) parameters of DM patients with age <65 and ≥65 years old before and after hemodialysis.
| HRV parameters (frequency domain) | Age <65 years |
Age ≥65 years |
||||
|---|---|---|---|---|---|---|
| Before hemodialysis | After hemodialysis | p | Before hemodialysis | After hemodialysis | p | |
| VLF (ln ms2) | 3.75 (2.78–4.23) | 4.03 (2.96–5.43) | 0.014 | 4.21 (2.89–4.77) | 4.34 (3.33–5.54) | 0.176 |
| LF (ln ms2) | 1.52 (0.69–2.44) | 2.34 (1.41–3.81) | <0.001 | 2.55 (1.36–3.26) | 3.43 (1.53–4.63) | 0.043 |
| HF (ln ms2) | 1.89 (0.94–2.78) | 2.31 (1.50–3.11) | 0.030 | 2.98 (1.88–3.85) | 2.53 (1.74–3.90) | 0.905 |
| HF% (nu) | 31.2 (20.1–43.1) | 29.8 (22.2–37.8) | 0.885 | 39.5 (29.4–51.0) | 28.5 (18.1–39.0) | 0.007 |
| LF/HF ratio | –0.19 (–1.11–0.77) | 0.11 (–0.36–0.91) | 0.665 | –0.14 (–0.98–0.48) | 0.25 (–0.52–1.17) | 0.091 |
LDL, low-density lipoprotein; iPTH, intact parathyroid hormone; HRV, heart rate variability; LF, low frequency; HF, high frequency; ACEI, angiotensin converting enzyme inhibitor; ARB, angiotensin II receptor blocker.