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. Author manuscript; available in PMC: 2021 Dec 1.
Published in final edited form as: Nat Med. 2021 May 24;27(6):1105–1112. doi: 10.1038/s41591-021-01339-0

Extended Data Fig. 2 |. Model accuracy changes over time based on window of historical data from an individual.

Extended Data Fig. 2 |

a, Lasso regularized regression using features calculated using different windows of wearable device monitoring. b, Accuracy of the HCT cVS mixed effects models over time for two example patients that were monitored between 2.5–5 years at Stanford hospital with >50 HCT observations at separate clinic visits. The HCT cVS mixed effects models demonstrate that the model accuracy changes over time, and particularly with a dramatic health event like a myocardial infarction (ICD code I21.4) (red vertical line) or a life-threatening ED visit (blue vertical line; CPT code 99285).