In a multivariate model , there was a trend for improved DFS and OS in ER-positive patients with high Ki67 and treated with docetaxel ( HR = 0.79 , 95 % CI = 0.63-1 .01 ; P = 0.05 and HR = 0.76 , 95 % CI = 0.57-1 .01 ; P = 0.06 , respectively ) .