Document Classification

Section Type: RESULTS

Text: In the lowest and highest center average TTR quartiles, hazard ratios for stroke or systemic embolism were 0. 73 (95 % confidence interval [CI], 0. 53-1. 00) and 0. 88 (95 % CI, 0. 57-1. 35) (Pinteraction = 0. 078), for mortality were 0. 91 (95 % CI, 0. 74-1. 13) and 0. 91 (95 % CI, 0. 71-1. 16) (Pinteraction = 0. 34), and for major bleeding were 0. 50 (95 % CI, 0. 36-0. 70) and 0. 75 (95 % CI, 0. 58-0. 97) (Pinteraction = 0. 095), respectively.