Table 3.
Independence of THRIVE Score and Treatment Arm (Trevo vs Merci)
Odds Ratio | 95% CI | P Value | |
---|---|---|---|
Model 1: good outcome (among patients treated with the Trevo device) | |||
THRIVE | 0.50 | 0.35–0.71 | <0.001 |
Model 2: good outcome (among patients treated with the Merci device) | |||
THRIVE | 0.72 | 0.53–0.97 | 0.03 |
Model 3: good outcome (all patients) | |||
THRIVE | 0.62 | 0.50–0.77 | <0.001 |
Model 4: good outcome (all patients) | |||
THRIVE | 0.60 | 0.48–0.75 | <0.001 |
Treatment Arm (Trevo vs Merci) | 2.91 | 1.39–6.08 | <0.001 |
In Models 1 and 2, THRIVE score predicts good outcome, stratified on treatment arm (Trevo vs Merci). Model 1 includes only patients assigned to the Trevo device, and model 2 includes only patients assigned to the Merci device. In Models 3 and 4, all TREVO-2 patients are included. THRIVE and treatment arm (Trevo device vs Merci device) are each independent predictors of good outcome (model 4), and controlling for treatment arm does not alter the relationship of THRIVE score and outcome (model 4 compared with model 3). CI indicates confidence interval; and THRIVE, Totaled Health Risks in Vascular Events.