Table 1. Results for basis peak.
Aggregate Data
(n = 87 340)
Data above ECG HR >116bpm
(n = 41 315)
Data below ECG HR <117bpm
(n = 46 025)
Basis Peak Mean HR, bpm (±SD) 115(28) 137(20) 94(15)
ECG Mean HR, bpm (±SD) 117(29) 142(19) 94(14)
Mean Absolute Difference, bpm (±SD) 6(10) 7(12) 5(7)
Mean Absolute Difference, % (±SD) 5.3 (8.3) 5.3 (9.5) 5.3 (7.0)
Correlation (r) .92* .77 * .84 *
Mean Bias, bpm (±SD) -3(11) [95% CI -3, -3] -5(13) [95% CI -5, -5] -1(8) [95% CI -1, -1]
95% Limits of Agreement (Upper, Lower) 19, -24 21, -31 15.6, -16.4
Standard Error of the Estimate (SEE) 11 12 8
*p < 0.0001SD= standard deviation, ECG= electrocardiograph, HR= heart rate, CI= confidence interval, n= per second ECG and FB data pairs.