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. Author manuscript; available in PMC: 2014 Sep 8.
Published in final edited form as: Stroke. 2013 Sep 26;44(12):3370–3375. doi: 10.1161/STROKEAHA.113.002796

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.