Errors in Figure 1
Abstract
Letters recovery after ischemic stroke. Sze et al showed that wors- We agree with the important limitations of self-reported ening frailty indices are strongly associated with worse out- measures that were mentioned by Sharma and Sivakumaran. comes in patients hospitalized with heart failure (a compa- However, the covariates we examined in this analysis were de- rable long-term disabling consequence of MI). rived not only from self-reporting, but also from interviews, Studies in the future...