Joint trajectories of sleep quality and cognitive function after acute ischemic stroke: a prospective cohort study using group-based dual trajectory modeling.

The three classes of the dual trajectory model were named according to their characteristic score changes: Class 1 (C1) was defined as the sleep improvement-cognitive decline-decompensation deterioration type, in which patients showed an increasing trend in sleep scores but a decreasing trend in cognitive scores; Class 2 (C2) was the sleep decline-cognitive improvement-compensation buffering type, with patients presenting a decreasing sleep score trend and an increasing cognitive score trend; Class 3 (C3) was the sleep improvement-cognitive improvement-synergistic gain type, where patients exhibited an increasing trend in both sleep quality and cognitive scores.

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