This method of statistical analysis may avoid the possibility that the benefit of DES implantation was overestimated as a result of the residual confounding related to the selection of a lower-risk population by propensity score matching, which was used in recent analyses of registry studies.[ 28 , 29 , 30 ] The multivariable Cox proportional-hazards analysis indicated that DES versus BMS showed a trend in reducing CV death and MI while not reducing TLR, which is unexpected.
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Comparison of the efficacy of drug-eluting stents versus bare-metal stents for the treatment of left main coronary artery disease.
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