Relationship between THRIVE score and outcomes among all patients in the SWIFT randomized controlled trial (RCT) (patients randomized to Solitaire or Merci device). (a) Decreasing chances of good outcome (mRS 0–2 at three-months) with increasing levels of trichotomized THRIVE score (0–2, 3–5, 6–9). The good outcomes at each level are THRIVE 0–2: 77·8% (7/9), THRIVE 3–5: 33·9% (19/56), and THRIVE 6–9: 21·1% (8/38). (P < 0·001, Mantel-Haenszel test for trend). (b) Increasing chances of death by three-months with increasing levels of trichotomized THRIVE score. The chance of death at each level is THRIVE 0–2: 11·1% (1/9), THRIVE 3–5: 25·0% (14/56), and THRIVE 6–9: 41·1% (16/38). (P < 0·001, Mantel-Haenszel test for trend). mRS, modified Rankin Scale; THRIVE, Totaled Health Risks in Vascular Events.