Fig 1.
Bland-Altman Plots showing the paired differences against the average for two devices (Camera and PPG).
Mean bias and limits of agreement are shown by the dashed lines, while confidence intervals are shown by the dotted lines. (A) Camera: rate per second. (B) Camera: rate per minute. (C) PPG: raw. (D) PPG: median filtered.
Fig 2.
Bland-Altman Plots showing the paired differences against the average for three devices (Impedance, Accelerometer, Chest-band).
Mean bias and limits of agreement are shown by the dashed lines, while confidence intervals are shown by the dotted lines. (A) Impedance. (B) Accelerometer. (C) Chest-band.
Table 1.
95% limits of agreement results for the respiratory rate measurements for each of the devices compared to the gold standard measure.
Table 2.
Comparison of the variabilities of differences across devices.
Table 3.
95% confidence intervals around each of the limits of agreement for the original mixed effects method (results after removing outliers are shown in italics for comparison).