TY  - JOUR
T1  - OUtcomes in the era of bare-metal stents vs the era of drug-eluting stents
AU  - Rassen JA, Schneeweiss S
Y1  - 2009/01/07
N1  - 10.1001/jama.2008.899
JO  - JAMA
SP  - 33
EP  - 34
VL  - 301
IS  - 1
N2  - 
To the Editor: Dr Malenka and colleagues1 described the protective effect of drug-eluting stents against repeat revascularization procedures by comparing frequency of revascularization in the bare-metal stent era to the frequency after drug-eluting stents came on the market. In doing so, they took a step back from the exposure itself—drug-eluting vs bare-metal stent—and instead implicitly used the era as a proxy for the stent exposure. Presumably, they did this because they believed that the exposure to drug-eluting stent would be confounded by unmeasured factors that they could not adjust for with the available data.

SN  - 0098-7484
M3  - doi: 10.1001/jama.2008.899
UR  - http://dx.doi.org/10.1001/jama.2008.899
ER  -