Impact of Model Choice When Studying the Relationship Between Blood Pressure Variability and Risk of Stroke Recurrence.

While the Fixed Cox Model version B suggested a significant decrease in the risk of stroke with higher BPV, the other models suggested otherwise: no association (First Year Cox model version A), a marginally significant positive association (Time-dependent Cox Model, Fixed Joint Model, Time-Dependent Joint Model), or a significant stronger positive association (Fixed Cox Model—version A, including BP measures after the first event).

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