Table 2: Association between noise, heart-rate variability and R-peak detection accuracy.

PTA IFPTA
ρ P ρ P
PPV vs. SNR 0.75 1.17∙10-5 0.79 2.72∙10-6
SE vs. SNR 0.86 4.16∙10-8 0.83 3.42∙10-7
F1 vs. SNR 0.82 5.46∙10-7 0.82 7.46∙10-7
SNR vs. HRV -0.45 2.25∙10-2 -0.65 4.86∙10-4
PPV vs. HRV -0.86 3.28∙10-6 -0.76 9.33∙10-6
SE vs. HRV -0.91 3.76∙10-10 -0.90 6.30∙10-10
F1 vs. HRV -0.81 1.37∙10-6 -0.91 2.04∙10-10