We read with interest the recent article by Selnes et al1 that significant cognitive decline occurs 5 years after individuals have undergone coronary artery bypass grafting (CABG). Whereas this and related findings have important ramifications for the treatment of these individuals, several statistical and methodological issues cast doubt on the reliability of the results.
Evered L, Silbert B, Maruff P, Collie A, Scott D. Cognitive Decline After Coronary Artery Surgery. Arch Neurol. 2002;59(3):489–490. doi:https://doi.org/
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