We have carefully read the article by Peterson et al1 focusing on the prognostic value of the exercise treadmill test with regard to future major adverse events. They concluded that an exercise capacity less than predicted2,3 has an independent impact on the future risk of cardiac events and overall mortality. Some points with regard to the baseline characteristics of the population and the reliability of the predictive model deserve further elucidation.
Testa L, Bhindi R, Banning A. The Hurdles of Translating a Single-Center Observation Into Practice. Arch Intern Med. 2008;168(15):1719-1720. doi:10.1001/archinte.168.15.1719-c