Table 2 Comparison of linear and nonlinear heart rate variability (HRV) indexes between the Breast Cancer Survivors (BCS) and Control groups.

From: Differences in heart rate variability and body composition in breast cancer survivors and women without cancer

 

BCS

n = 27

Control

n = 31

Significance p

RRave (ms)

729 (648–802)

795 (713–852)

0.01

cSDNN

32.2 (20.8–43.7)

32.1 (24.6–44.2)

0.25

cRMSSD

19.6 (11.8–33.4)

23.7 (18.3–36.1)

0.07

pNN50 (%)

0.5 (0.0–5.6)

1.5 (0.0–7.7)

0.12

HFnu

19.9 (12.9–28.9)

19.9 (18.2–29.8)

0.07

cHF

0.14 (0.04–0.43)

0.16 (0.11–0.35)

0.18

cSD1

13.8 (8.3–23.6)

16.7 (13.0–25.5)

0.07

cSD2

42.6 (28.3–59.3)

41.5 (31.7–55.2)

0.31

cSD2/SD1

3.4 (2.7–5.0)

2.9 (2.3–3.5)

0.001

SampEn

1.5 (1.3–1.8)

1.7 (1.5–1.8)

0.04

α1

1.3 (1.2–1.5)

1.2 (1.1–1.4)

0.05

α2

0.6 (0.3–0.6)

0.5 (0.4–0.5)

0.04

0V (%)

52.2 (39.9–66.8)

46.42 (38.4–53.6)

0.05

1V (%)

38.1 (28.61–41.5)

39.4 (36.7–43.7)

0.05

2LV (%)

1.8 (0.0–6.9)

1.7 (0.9–3.3)

0.37

2UV (%)

7.1 (4.3–11.5)

10.8 (6.4–15.7)

0.03

  1. Data are presented as median (25th, 75th percentiles). Mann–Whitney's U tests between BCS and Control groups. Bold values correspond to significant results (p value < 0.05).
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