Interaction effect of rehabilitation initiation timing and hospitalization frequency on long-term functional outcomes after stroke in rural China: a retrospective cohort study.

Among patients who started rehabilitation at 1–14 and 15–30 days, each additional systematic inpatient rehabilitation was associated with a further mean BI increase of 2.24 (95% CI, 0.98–5.46, p = 0.20) and 2.10 (95% CI, 0.87–5.07, p = 0.21) points, respectively, although these differences did not reach statistical significance.

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