The percentage of uncovered struts at 6 months varied significantly with post-stent strut apposition ( 0 % [ IQR : 0 % to 11.4 % ] in embedded , 16.3 % [ IQR : 8.1 % to 31.3 % ] in apposed , and 26.8 % [ IQR : 0 % to 56.3 % ] in malapposed , p < 0.001 for all pairwise comparisons ) .