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Table 1 Group averages of HRV for edited and unedited data, respectively, when calculated before and after filtering with the age-based threshold.

From: Automatic filtering of outliers in RR intervals before analysis of heart rate variability in Holter recordings: a comparison with carefully edited data

 

Before filtering

After filtering

 

Edited data

Unedited data

Edited data

Unedited data

P tot (ms 2 , log) (Age-group: p < 0.001, SS = 15.5; Method: p < 0.001, SS = 0.1)

1-14 years (N = 25)

3.71 (0.33)

4.14 (0.86)

3.68 (0.33)

3.68 (0.33)

15-24 years (N = 32)

3.90 (0.23)

4.09 (0.50)

3.90 (0.23)

3.88 (0.23)

25-49 years (N = 40)

3.64 (0.23)

3.89 (0.83)

3.64 (0.23)

3.63 (0.23)

50-75 years (N = 43)

3.40 (0.28)

3.73 (0.62)

3.35 (0.27)

3.36 (0.27)

P VLF (ms 2 , log) (Age-group: p < 0.001, SS = 10.0; Method: p < 0.001, SS = 0.1)

1-14 years (N = 25)

3.36 (0.31)

3.82 (0.97)

3.35 (0.31)

3.36 (0.31)

15-24 years (N = 32)

3.63 (0.22)

3.81 (0.55)

3.63 (0.22)

3.61 (0.22)

25-49 years (N = 40)

3.38 (0.21)

3.60 (0.88)

3.38 (0.21)

3.35 (0.21)

50-75 years (N = 43)

3.21 (0.25)

3.43 (0.61)

3.16 (0.26)

3.17 (0.25)

P LF (ms 2 , log) (Age-group: p < 0.001, SS = 19.4; Method: p < 0.001, SS = 0.004)

1-14 years (N = 25)

3.11 (0.29)

3.35 (0.56)

3.10 (0.30)

3.10 (0.31)

15-24 years (N = 32)

3.34 (0.26)

3.55 (0.41)

3.34 (0.26)

3.34 (0.26)

25-49 years (N = 40))

3.14 (0.26)

3.31 (0.52)

3.14 (0.26)

3.14 (0.26)

50-75 years (N = 43)

2.78 (0.34)

3.18 (0.63)

2.76 (0.32)

2.76 (0.32)

P HF (ms 2 , log) (Age-group: p < 0.001, SS = 57.8; Method: p < 0.001, SS = 0.12)

1-14 years (N = 25)

3.12 (0.47)

3.31 (0.49)

3.06 (0.45)

3.05 (0.45)

15-24 years (N = 32)

3.10 (0.36)

3.26 (0.38)

3.10 (0.36)

3.08 (0.35)

25-49 years (N = 40))

2.68 (0.38)

2.92 (0.53)

2.68 (0.38)

2.67 (0.36)

50-75 years (N = 43)

2.26 (0.41)

2.86 (0.60)

2.19 (0.38)

2.20 (0.38)

  1. Data are given as mean (SD).
  2. P-values and sum of squares (SS) were derived from repeated measures ANOVA with age-group (df = 3) and method (df = 2) as factors. The unedited and unfiltered data were not included in the ANOVA.