Both scores were associated with death or stroke ( hazard ratio [ HR ] , 1.14 ; 95 % confidence interval [ CI ] , 1.05-1 .23 for each 1-point increase in CHA2DS2-VASc ; P = 0.001 ; HR , 1.11 ; 95 % CI , 1.02-1 .21 for each 1-point increase in CHADS2 ; P = 0.016 ) .