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Table 2 Equivalence test of preprocessing methods.

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

  a) Edited vs
b) Edited and filtered
a) Edited vs
c) Unedited and filtered
b) Edited and filtered vs
c) Unedited and filtered
ΔP tot (ms 2 , log)
Subjects 1-14 years (N = 25) (0.014, 0.042)* (0.012, 0.039)* (-0.006, 0.001)
Subjects 15-24 years (N = 32) (0.020, 0.030)* (0.014, 0.025)* (-0.009, -0.002)
Subjects 25-49 years (N = 40) (0.017, 0.026)* (0.008, 0.019) (-0.012, -0.004)
Subjects 50-75 years (N = 43) (0.035, 0.067)* (0.026, 0.059)* (-0.012, -0.005)
ΔP HF (ms 2 , log)    
Subjects 1-14 years (N = 25) (0.036, 0.085)* (0.041, 0.089)* (-0.001, 0.011)
Subjects 15-24 years (N = 32) (0.015, 0.030)* (0.007, 0.026)* (-0.011, -0.001)
Subjects 25-49 years (N = 40) (0.011, 0.027)* (0.002, 0.021) (-0.013, -0.003)
Subjects 50-75 years (N = 43) (0.042, 0.096)* (0.035, 0.085)* (-0.014, -0.003)
  1. Data are given as 90% confidence interval for difference. * p < 0.05 in TOST test using ±5% as acceptable difference, corresponding to (ӨL, ӨU ) = (-0.022, 0.0212) in log-transformed units.
  2. Summary of differences in HRV indices when calculated from differently pre-processed R-R intervals: a) edited data, b) edited and filtered data, and c) unedited and filtered data. Filtering of RR-intervals was performed using the age-based threshold.