睡眠和心脏代谢疾病：美国All of Us研究项目的可穿戴电子健康记录研究

Background: Sleep health spans duration, quality, regularity, and timing, yet Life's Essential 8 scores sleep by duration alone, and regularity studies used about 1 week of data. How these dimensions, measured over months, relate to incident cardiometabolic disease is unknown, as is whether nightly sleep-cycle structure adds information. Methods: This cohort study included US adults in the All of Us Research Program with linked Fitbit and electronic health records (2009–2023). We derived 11 sleep metrics over a 180-day baseline (≥90 valid nights). Incident diagnoses, grouped into phecodes, wer