1-y Cumulative Recurrence Rate, % (95% CI) | 5-y Cumulative Recurrence Rate, % (95% CI) | P^{a} | |
---|---|---|---|

Finding on vascular imaging | |||

Normal (n = 24) | 0 (—) | 0 (—) | |

Large vessel occlusion (n = 6)^{b} | 0 (—) | 0 (—) | >.99 |

Abnormal vascular Imaging (n = 22)^{c} | 57 (37–79) | 60 (43–87) | <.0001 |

Large vessel stenosis (n = 20) | 55 (34–78) | 64 (41–86) | <.0001 |

Moyamoya syndrome (n = 7) | 57 (27–90) | 78 (41–99) | .003 |

Vasculitis (n = 2) | 100 (—) | 100 (—) | .02 |

Arterial dissection (n = 1) | 100 (—) | 100 (—) | .01 |