Search Results - "Hu, X Joan"

A new time-varying coefficient regression approach for analyzing infectious disease data by Liu, Juxin, Bellows, Brandon, Hu, X. Joan, Wu, Jianhong, Zhou, Zhou, Soteros, Chris, Wang, Lin

“…Since the beginning of the global pandemic of Coronavirus (SARS-COV-2), there has been many studies devoted to predicting the COVID-19 related…”
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The Flooring for Injury Prevention (FLIP) Study of compliant flooring for the prevention of fall-related injuries in long-term care: A randomized trial by Mackey, Dawn C, Lachance, Chantelle C, Wang, Peiwei T, Feldman, Fabio, Laing, Andrew C, Leung, Pet M, Hu, X Joan, Robinovitch, Stephen N

“…Fall-related injuries exert an enormous health burden on older adults in long-term care (LTC). Softer landing surfaces, such as those provided by low-stiffness…”
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Transitions in health care settings for frequent and infrequent users of emergency departments: a population-based retrospective cohort study by Rosychuk, Rhonda J, Chen, Anqi A, Ospina, Maria B, McRae, Andrew D, Hu, X. Joan, McLane, Patrick

“…Abstract Background Efforts to reduce emergency department (ED) volumes often target frequent users. We examined transitions in care across ED, hospital, and…”
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Estimating duration distribution aided by auxiliary longitudinal measures in presence of missing time origin by Xiong, Yi, Braun, W. John, Hu, X. Joan

“…Understanding the distribution of an event duration time is essential in many studies. The exact time to the event is often unavailable, and thus so is the…”
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Frequent users of emergency departments and patient flow in Alberta and Ontario, Canada: an administrative data study by Chen, Anqi, Fielding, Scott, Hu, X Joan, McLane, Patrick, McRae, Andrew, Ospina, Maria, Rosychuk, Rhonda J

“…This paper describes and compares patient flow characteristics of adult high system users (HSUs) and control groups in Alberta and Ontario emergency…”
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Handling coarsened age information in the analysis of emergency department presentations by Rosychuk, Rhonda J, Bachman, Jeff W N, Chen, Anqi, Hu, X Joan

“…Administrative databases offer vast amounts of data that provide opportunities for cost-effective insights. They simultaneously pose significant challenges to…”
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Multiple event times in the presence of informative censoring: modeling and analysis by copulas by Li, Dongdong, Hu, X. Joan, McBride, Mary L., Spinelli, John J.

“…Motivated by a breast cancer research program, this paper is concerned with the joint survivor function of multiple event times when their observations are…”
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Comparative effectiveness of urine drug screening strategies alongside opioid agonist treatment in British Columbia, Canada: a population-based observational study protocol by Guerra-Alejos, B Carolina, Kurz, Megan, Min, Jeong Eun, Dale, Laura M, Piske, Micah, Bach, Paxton, Bruneau, Julie, Gustafson, Paul, Hu, X Joan, Kampman, Kyle, Korthuis, P Todd, Loughin, Tom, Maclure, Malcolm, Platt, Robert W, Siebert, U, Socías, M Eugenia, Wood, Evan, Nosyk, Bohdan

“…IntroductionUrine drug tests (UDTs) are commonly used for monitoring opioid agonist treatment (OAT) responses, supporting the clinical decision for take-home…”
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An exploration of the relationship between wastewater viral signals and COVID-19 hospitalizations in Ottawa, Canada by Peng, K. Ken, Renouf, Elizabeth M., Dean, Charmaine B., Hu, X. Joan, Delatolla, Robert, Manuel, Douglas G.

“…Monitoring of viral signal in wastewater is considered a useful tool for monitoring the burden of COVID-19, especially during times of limited availability in…”
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Evaluating Association Between Two Event Times with Observations Subject to Informative Censoring by Li, Dongdong, Hu, X. Joan, Wang, Rui

“…This article is concerned with evaluating the association between two event times without specifying the joint distribution parametrically. This is…”
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Estimation in the Cox cure model with covariates missing not at random, with application to disease screening/prediction by GUO, Lisha, XIONG, Yi, HU, X. Joan

“…In an attempt to provide a statistical tool for disease screening and prediction, we propose a semiparametric approach to analysis of the Cox proportional…”
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Traumatic brain injury in precariously housed persons: Incidence and risks by O'Connor, Tiffany A., Panenka, William J., Livingston, Emily M., Stubbs, Jacob L., Askew, Julia, Sahota, Charanveer S., Feldman, Samantha J., Buchanan, Tari, Xu, Linwan, Hu, X. Joan, Lang, Donna J., Woodward, Melissa L., Thornton, Wendy Loken, Gicas, Kristina M., Vertinsky, Alexandra T., Heran, Manraj K., Su, Wayne, MacEwan, G. William, Barr, Alasdair M., Honer, William G., Thornton, Allen E.

“…Homeless and precarious housed persons are particularly prone to traumatic brain injuries (TBIs), but existent incidence rates are hampered by poor case…”
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Estimating effects of time-varying exposures on mortality risk by Thomson, Trevor J., Hu, X. Joan, Nosyk, Bohdan

“…Administrative databases have become an increasingly popular data source for population-based health research. We explore how mortality risk is associated with…”
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Bayesian adaptive group lasso with semiparametric hidden Markov models by Kang, Kai, Song, Xinyuan, Hu, X. Joan, Zhu, Hongtu

“…This paper presents a Bayesian adaptive group least absolute shrinkage and selection operator method to conduct simultaneous model selection and estimation…”
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Evaluating Effects of Various Exposures on Mortality Risk of Opioid Use Disorders with Linked Administrative Databases by Thomson, Trevor J., Joan Hu, X., Nosyk, Bohdan

“…Administrative health records provide a rich source of information pertaining to various exposures, many of which are time-varying in nature. When internal…”
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Handling missing birthdates in marginal regression analysis with recurrent events by Pietrosanu, Matthew, Rosychuk, Rhonda J., Hu, X. Joan

“…In attempt to provide a practical guide to handling missing birthdate information, this paper examines the strategy proposed by Hu and Rosychuk ( 2016 ) for…”
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Cox regression of clustered event times with covariates missing not at random by Liu, Li, Liu, Yanyan, Xiong, Yi, Hu, X. Joan

“…Motivated by a recent tuberculosis (TB) study, this paper is concerned with covariates missing not at random (MNAR) and models the potential intracluster…”
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Estimation under Cox proportional hazards model with covariates missing not at random by Guo, Lisha, Hu, X. Joan, Liu, Yanyan

“…This paper considers likelihood-based estimation under the Cox proportional hazards model in the situations where some covariate entries are missing not at…”
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Marginal regression analysis of recurrent events with coarsened censoring times by Hu, X. Joan, Rosychuk, Rhonda J.

“…Motivated by an ongoing pédiatrie mental health care (PMHC) study, this article presents weakly structured methods for analyzing doubly censored recurrent…”
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Age Affects the Impact of Important Predictors on Mental Health Emergency Department Visits by Rosychuk, Rhonda J., Newton, Amanda S., Hu, X. Joan

“…Visits to emergency departments (EDs) for pediatric mental health care have increased over the years. The likelihood of ED re-visit is greatest for older…”
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