Author

Hiroya Hashimoto

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Preprint Sep 2026

Brier-UDAM for Paired Prediction-Rule Comparisons: Latent-Risk Interpretation, Observable Contrasts, and Inference

The Brier risk summarizes probability-prediction error but does not explain why two prediction rules differ. We develop Brier-UDAM, a framework for paired binary prediction-rule comparisons that separates the Brier-risk difference into mean-bias, dispersion, and Brier-scale alignment contributions. Although the observa...

E. Nakatani, Hiroya Hashimoto · 0 citations

Oct 2026

Age-Based Preoperative Transthoracic Echocardiography, Intraoperative Hypotension, and Postoperative Outcomes in Older Adults Undergoing Noncardiac Surgery: A Regression Discontinuity Analysis.

BACKGROUND The clinical value of routine preoperative transthoracic echocardiography (TTE) in older adults remains controversial. Existing evidence is largely observational and vulnerable to confounding by indication, limiting causal interpretation of whether preoperative TTE improves intraoperative management and peri...

Takatomo Tesaki, Toshiyuki Nakanishi, Atsushi Ishikawa et al. · Anesthesia and Analgesia · 0 citations