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OBJECTIVE: To test the hypothesis that variation in care coordination is related to LOS. DESIGN We applied a spectral co-clustering methodology to simultaneously infer groups of patients and care coordination patterns, in the form of…

Computers and Society · Computer Science 2017-05-30 You Chen , Mayur B. Patel , Candace D. McNaughton , Bradley A. Malin

To assess the efficiency and the resource consumption level in healthcare scope, many economic and social factors have to be considered. An index which has recently been studied by the researchers, is length of hospital stay (LOS) defined…

Applications · Statistics 2019-11-12 Seyed Nasser Moosavi , Ashkan Khalifeh , Ali Shojaee , Masoud Abessi

Modern medical research demands specialized causal inference methods evaluating complex continuous-time dynamic treatment regimens using observational data. For instance, obtaining the causal effects of intravenous administration, a…

Methodology · Statistics 2026-04-02 Haiyan Zhu , Yingchun Zhou

Laparoscopic surgery has been shown through a number of randomized trials to be an effective form of treatment for cholecystitis. Given this evidence, one natural question for clinical practice is: does the effectiveness of laparoscopic…

Methodology · Statistics 2023-11-09 Matteo Bonvini , Zhenghao Zeng , Miaoqing Yu , Edward H. Kennedy , Luke Keele

To test the hypothesis that accuracy, discrimination, and precision in predicting postoperative complications improve when using both preoperative and intraoperative data input features versus preoperative data alone. Models that predict…

The availability of downstream resources plays is critical in planning the admission of elective surgery patients. The most crucial one is inpatient beds. To ensure bed availability, hospitals may use machine learning (ML) models to predict…

Machine Learning · Computer Science 2025-07-30 Pieter Smet , Martina Doneda , Ettore Lanzarone , Giuliana Carello

Deciding on an appropriate intervention requires a causal model of a treatment, the outcome, and potential mediators. Causal mediation analysis lets us distinguish between direct and indirect effects of the intervention, but has mostly been…

Machine Learning · Computer Science 2023-06-19 Çağlar Hızlı , ST John , Anne Juuti , Tuure Saarinen , Kirsi Pietiläinen , Pekka Marttinen

Background: Major postoperative complications are associated with increased short and long-term mortality, increased healthcare cost, and adverse long-term consequences. The large amount of data contained in the electronic health record…

Human-Computer Interaction · Computer Science 2020-07-28 Meghan Brennan , Sahil Puri , Tezcan Ozrazgat-Baslanti , Rajendra Bhat , Zheng Feng , Petar Momcilovic , Xiaolin Li , Daisy Zhe Wang , Azra Bihorac

In this paper we review an approach to estimating the causal effect of a time-varying treatment on time to some event of interest. This approach is designed for the situation where the treatment may have been repeatedly adapted to patient…

Statistics Theory · Mathematics 2007-06-13 J. J. Lok , R. D. Gill , A. W. van der Vaart , J. M. Robins

The association between preoperative cognitive status and surgical outcomes is a critical, yet scarcely explored area of research. Linking intraoperative data with postoperative outcomes is a promising and low-cost way of evaluating…

The automatic analysis of the surgical process, from videos recorded during surgeries, could be very useful to surgeons, both for training and for acquiring new techniques. The training process could be optimized by automatically providing…

Computer Vision and Pattern Recognition · Computer Science 2016-10-19 Katia Charrière , Gwenolé Quellec , Mathieu Lamard , David Martiano , Guy Cazuguel , Gouenou Coatrieux , Béatrice Cochener

Background/Objectives: Cataract surgery, a very common and critical procedure for restoring vision, has outcomes that can vary based on patient demographics. This study aimed to elucidate the effects of age and sex on the risk factors,…

Medical Physics · Physics 2024-10-22 Hadas Ben-Eli Yaacov Cnaany , Itay Chowers , Ayelet Goldstein

With the proliferation of Electronic Health Records (EHRs), a critical challenge in building predictive models is determining the optimal historical data time window to maximize accuracy. This study investigates the impact of various…

Machine Learning · Computer Science 2026-05-04 Ramin Mohammadi , Vahab vahdat , Sarthak Jain , Amir T. Namin , Ramya Palacholla , Sagar Kamarthi

The use of observational time series data to assess the impact of multi-time point interventions is becoming increasingly common as more health and activity data are collected and digitized via wearables, social media, and electronic health…

Methodology · Statistics 2020-12-01 Roy Adams , Suchi Saria , Michael Rosenblum

The surgical department and adequate access to health care are critical problems. The operating room plays a fundamental role in the performance of a hospital. The real problem faces several issues to collect data and optimize scheduling…

Signal Processing · Electrical Eng. & Systems 2019-12-25 Zahra Namazian , Emad Roghanian

We study inference on the long-term causal effect of a continual exposure to a novel intervention, which we term a long-term treatment, based on an experiment involving only short-term observations. Key examples include the long-term health…

Applications · Statistics 2024-06-06 Allen Tran , Aurélien Bibaut , Nathan Kallus

Problem definition: Access to accurate predictions of patients' outcomes can enhance medical staff's decision-making, which ultimately benefits all stakeholders in the hospitals. A large hospital network in the US has been collaborating…

The existing computational models used to estimate motion sickness are incapable of describing the fact that the predictability of motion patterns affects motion sickness. Therefore, the present study proposes a computational model to…

Quantitative Methods · Quantitative Biology 2021-01-18 Takahiro Wada

Physiological signals can potentially be applied as objective measures to understand the behavior and engagement of users interacting with information access systems. However, the signals are highly sensitive, and many controls are required…

Information Retrieval · Computer Science 2023-04-27 Kaixin Ji , Damiano Spina , Danula Hettiachchi , Flora Dilys Salim , Falk Scholer

This paper studies the identification of causal effects of a continuous treatment using a new difference-in-difference strategy. Our approach allows for endogeneity of the treatment, and employs repeated cross-sections. It requires an…

Econometrics · Economics 2023-04-18 Xavier D'Haultfoeuille , Stefan Hoderlein , Yuya Sasaki