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. 2017 Sep;3(9):1006–1017. doi: 10.1016/j.jacep.2017.02.012

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© 2017 The Authors

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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Conduction Response Frequency Distributions

Overall distributions of S1S2_delay are shown for HRA and CS pacing. S1S2_delay showed a bimodal distribution represented by a Gaussian mixed model. (A) HRA pacing. Peaks at 275 ± 11/326 ± 13 ms (K-S p = 0.31: sample is not significantly different to the bimodal distribution). (B) CS pacing. Peaks at 271 ± 11/319 ± 16 ms (K-S p = 0.52: sample is not significantly different to the bimodal distribution). K-S = Kolmogorov-Smirnov; other abbreviations as in Figures 1 and 2.