LBBB (n = 20)

No LBBB (n = 31)

p

Mean RRI (ms)

890 ± 108

869 ± 124

ns

SDNN (ms)

111 ± 35

133 ± 39

0.051

RMSSD (ms)

24 ± 9

34 ± 22

0.070

PNN50 (%)

3.6 ± 2.7

9.6 ± 9.3

<0.05

FD

1.58 ± 0.07

1.60 ± 0.10

ns

SD 1 (Poincare plot)

17 ± 6

24 ± 16

0.057

SD 2 (Poincare plot)

156 ± 50

186 ± 55

0.056

a 1

1.03 ± 0.01

1.03 ± 0.01

ns

a 2

0.98 ± 0.02

0.98 ± 0.02

ns

Total power (ln)

8.8 ± 0.7

9.3 ± 0.7

<0.05

ULF power (ln)

8.4 ± 0.7

8.8 ± 0.6

<0.05

VLF power (ln)

7.5 ± 0.7

7.9 ± 0.7

<0.05

LF power (ln)

5.6 ± 0.8

6.4 ± 1.2

<0.05

HF power (ln)

4.5 ± 0.8

5.2 ± 1.3

<0.05

LF/HF ratio

3.4 ± 2.1

3.9 ± 2.2

ns

TO (%)

?1.7 ± 3.7

?4.5 ± 4.5

<0.05

TS (ms/RRI)

12.6 ± 9.8

21.0 ± 12.5

<0.05