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Sleep parameters derived from smartwatch sphygmomanometer are associated with systolic blood pressure and time in therapeutic range: a large-scale real-world longitudinal study

Sleep disturbance is an established hypertension risk factor. However, prior studies relied on self-reported or single-night polysomnographic data, precluding dynamic long-term evaluation. Conventional ambulatory monitoring cannot concurrently quantify sleep. The smartwatch sphygmomanometer enable simultaneous ca...