Fig. 2: Validation of vital measurements from CM devices.

A–L Bland Altman plots of the comparison between vital measurement from the CM devices and EHR vitals, for the retrospective, prospective and alternate device datasets. M, O, P Features of elevated MEWS score alerts, detected by CM device and missed by EHR, and contribution of CM vitals in their generation. Dotted red lines indicate the 95% confidence intervals of the deltas between wearable measurements and EHR measurements. Dotted blue lines indicate the mean delta between wearable and EHR measurements. Green dotted lines indicate a 10% deviation of the wearable measurement from the EHR measurement at that mean value. Sub-panel titles detail the percentage of vital measurements that fall within the 10% deviation line (green dotted line). Bland Altman plots of (A–C) Device #1 retrospective HR, Device #1 Prospective HR and Alternate Device #2 HR; (D, E Device #1 Retrospective RR, Device #1 Prospective RR and Alternate Device #2 RR; (G–I) Device #1 Retrospective SpO2, Device #1 Prospective SpO2 (Device #1 Prospective dataset did not have SpO2) and Alternate Device #2 SpO2 J–L Device #1 Retrospective temperature, Device #1 Prospective temperature, and Alternate Device #2 temperature (M) Scatterplot and marginal distributions of the duration of wearable clinical alerts (MEWS > 6) that were detected by the wearable but missed by the EHR, along with the difference in magnitude of the MEWS score, between wearable vs EHR derived MEWS, at alert onset. O, P Heatmaps of MEWS contribution of RR. The wearable MEWS score was plotted on the y-axis and the EHR MEWS score on the x-axis. The diagonal green line represents equal scores given to both the wearable- and EHR-based vitals. Off diagonal values indicate that one modality was given a higher score than the others. We focused on respiratory rate and heart rate measurements, since both the temperature and SpO2 measurements were congruent between EHR and CM values. O and HR (P) from the wearable device (y-axis) against the EHR (x-axis, labeled “Manual”). Source data are provided as a Source Data file.