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Ralph B. D'Agostino

Researcher at Wake Forest University

Publications -  1336
Citations -  250792

Ralph B. D'Agostino is an academic researcher from Wake Forest University. The author has contributed to research in topics: Framingham Heart Study & Framingham Risk Score. The author has an hindex of 226, co-authored 1287 publications receiving 229636 citations. Previous affiliations of Ralph B. D'Agostino include VA Boston Healthcare System & University of Illinois at Urbana–Champaign.

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Discriminating clinical features of heart failure with preserved vs. reduced ejection fraction in the community.

TL;DR: Multiple clinical characteristics at the time of initial HF presentation differed in participants with HFPEF vs. HFREF, and while CHD was clearly associated with a lower EF, overlapping characteristics were observed in the middle of the left ventricular EF range spectrum.
Journal ArticleDOI

External validity of predictive models: a comparison of logistic regression, classification trees, and neural networks.

TL;DR: A simulation study that compared the external validity of standard logistic regression with piecewise-linear and quadratic terms (LR2), classification trees, and neural networks (NNETs) highlights the necessity of external validation to test the transportability of predictive models.