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Table 2 Diurnal profile of frequency-domain HRV parameters in observed diabetic patients

From: Heart rate variability is associated with interstitial glucose fluctuations in type 2 diabetic women treated with insulin

Parameter

Period

Day-time/fasting (1)

Day-time/postprandial (2)

Night (3)

LF (n.u.)

57 (40; 69)

46.7 (34.5; 60.0)

p 1–2 = 0.01

62 (38; 108)

p 1–3 = 0.006

p 2–3 = 0.0001

HF (n.u.)

47.7 (30.0; 71.3)

42.7 (30.0; 62.3)

p 1–2 = 0.09

66 (43; 92)

p 1–3 = 0.0001

p 2–3 = 0.00002

LF/HF

1.2 (0.9; 1.4)

1.1 (0.9; 1.3)

p 1–2 = 0.6

1.0 (0.7; 1.4)

p 1–3 = 0.2

p 2–3  = 0.6

  1. The data are shown as medians (25th; 75th percentiles). The differences were assessed by Wilcoxon matched pair test
  2. p 1–2 p-value for the differences between day-time/fasting period and day-time/postprandial one, p 1–3 p-value for the differences between day-time/fasting period and night, p 2–3 p-value for the differences between day-time/postprandial period and night
  3. HF high-frequency domain, HRV heart rate variability, LF low-frequency domain, n.u. normalized units
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