The mid-range ejection fraction following ST elevation myocardial infarction

We thank Drs Zhou et al, for their interest in our work. The authors raised some concerns regarding the use of multivariate Cox proportional regression analysis and whether other confounders were included in the model. The reported hazard ratios were adjusted for the differences among the groups of preserved, mid-range, and reduced ejection fraction (EF). This included age, gender, kidney function, infarct location, troponin values, and medications on discharge [1].
Source: International Journal of Cardiology - Category: Cardiology Authors: Tags: Letter to the Editor Source Type: research