univariate analysis of 29 factors revealed seven factors related to restenosis : vessel dilated ( circumflex coronary artery 18 % , right coronary artery 27 % , left anterior descending artery 34 % ; p less than .01 ) , final gradient of 15 mm hg or less compared with greater than 15 mm hg ( 27 % vs 38 % , p less than .01 ) , duration of angina greater than 2 months compared with angina of shorter duration ( 27 % vs 35 % , p = .01 ) , post-ptca stenosis of 30 % or less compared with 31 % to 50 % ( 28 % vs 36 % , p less than .025 ) , stable vs unstable angina ( 26 % vs 34 % , p less than .05 ) , presence vs absence of intimal dissection ( 26 % vs 32 % , p = .07 ) , and female gender vs male gender ( 25 % vs 32 % , p = .08 ) .
C0002962
angina
C0002965
unstable angina