Fig. 3: Bland–Altman plots for the respiratory rate (RR) study.
From: Prospective validation of smartphone-based heart rate and respiratory rate measurement algorithms
Results are presented for a algorithm version A (n = 50) and b algorithm version B (n = 50). From left to right, plots are respectively results for the full study followed by subgroups based on absence vs. presence of chronic respiratory conditions. The reference RR was obtained by research coordinators manually counting breaths (see Methods). Dots represent individual participants; blue lines indicate the mean difference; red lines indicate the 95% limits of agreement (mean difference ± 1.96 standard deviations).
