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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.