Research Topics
| R J RosychukSummaryAffiliation: University of Alberta Country: Canada Publications
| Collaborators
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Detail Information
Publications
Childhood cancer trends in a western Canadian province: a population-based 22-year retrospective studyRhonda J Rosychuk
Faculty of Medicine and Dentistry, Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
Pediatr Blood Cancer 55:1348-55. 2010..The objective of this study was to describe children and youth <20 years of age diagnosed with malignant cancer in Alberta, Canada over 22 years. We consider both temporal and geographical variations...- Central nervous system (CNS) tumor trends in children in a western Canadian province: a population-based 22-year retrospective studyRhonda J Rosychuk
Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, 3rd Floor, Edmonton Clinic Health Academy, 11405 87 Avenue NW, Edmonton, AB, Canada
J Neurol 259:1131-6. 2012..15 in 2003/2004). Our data suggests an emerging trend with the latter few years having a seemingly higher standardized incidence rate than earlier years. Further study is required to determine if the trend persists... 
Adaptations for finding irregularly shaped disease clustersNikolaos Yiannakoulias
School of Geography and Earth Sciences, McMaster University, Hamilton, Canada
Int J Health Geogr 6:28. 2007..Some of these approaches may have difficulty defining cluster boundaries precisely, and tend to over-fit data with very irregular (and implausible) clusters shapes...- Spatial event cluster detection using an approximate normal distributionMahmoud Torabi
Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
Int J Health Geogr 7:61. 2008..We also implement a Monte Carlo simulation to study the performance of the proposed approach... 
Bias correction of two-state latent Markov process parameter estimates under misclassificationRhonda J Rosychuk
Department of Pediatrics, University of Alberta, 9423 Aberhart Centre, Edmonton, Alberta T6G 2J3, Canada
Stat Med 22:2035-55. 2003..Simulation studies reveal the effect of misclassification on estimation. Repeated diagnostic testing data illustrate the approaches...- Croup presentations to emergency departments in Alberta, Canada: a large population-based studyRhonda J Rosychuk
Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
Pediatr Pulmonol 45:83-91. 2010..The objective of this study was to describe the epidemiology of croup presentations to EDs made by infants (<or=2 years old) in the province of Alberta, Canada... - Presentations to EDs in Alberta, Canada, for pneumonia: a large population-based studyRhonda J Rosychuk
Department of Pediatrics, University of Alberta, Edmonton, AB, T6G 2J3, Canada
Chest 138:1363-70. 2010..Pneumonia is an infection of the lung and a common presentation problem in EDs. The objective of this study was to describe the epidemiology of pneumonia presentations to EDs in the province of Alberta, Canada... - An exact test to detect geographic aggregations of eventsRhonda J Rosychuk
Department of Pediatrics, 11402 University Avenue NW, Edmonton, Alberta, Canada
Int J Health Geogr 9:28. 2010..Multiple events related to disease may be possible for each disease case and the repeated nature of events needs to be incorporated in cluster detection tests... - Asthma presentations by children to emergency departments in a Canadian province: a population-based studyRhonda J Rosychuk
Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
Pediatr Pulmonol 45:985-92. 2010..Asthma has a high prevalence in North American children and exacerbations presenting to the emergency department (ED) setting are common... - A population-based study of emergency department presentations for asthma in regions of AlbertaRhonda J Rosychuk
Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, 11402 University Ave N W, Edmonton, Alberta, Canada
CJEM 12:339-46. 2010..We describe the epidemiology of asthma presentations to emergency departments (EDs) for 3 main regions in the province of Alberta... - Presentations to emergency departments for chronic obstructive pulmonary disease in Alberta: a population-based studyRhonda J Rosychuk
Department of Pediatrics, University of Alberta, Edmonton, Canada
CJEM 12:500-8. 2010..We sought to determine the epidemiology of COPD presentations to EDs by older adults in Alberta... - Seasonality patterns in croup presentations to emergency departments in Alberta, Canada: a time series analysisRhonda J Rosychuk
Department of Pediatrics, niversity of Alberta, 9423 Aberhart Centre, 11402 University Ave NW, Edmonton, Alberta, Canada T6G 2J3
Pediatr Emerg Care 27:256-60. 2011..Most cases are caused by parainfluenza viruses. We examine the monthly patterns of young children who made croup-related visits to EDs in Alberta, Canada... - Willingness to volunteer during an influenza pandemic: perspectives from students and staff at a large Canadian universityRhonda J Rosychuk
Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
Influenza Other Respi Viruses 2:71-9. 2008..A future influenza pandemic will require greater demand on numerous essential services and a reduced capacity to meet that demand. Recruitment of volunteers is an important issue for pre-pandemic planning... - Statistical disease cluster surveillance of medically treated self-inflicted injuries in Alberta, CanadaRhonda J Rosychuk
Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
Chronic Dis Can 27:68-76. 2006..We believe that these clusters represent areas of excessive self-inflicted injury and that special intervention programs should be considered... - Spatial event cluster detection using a compound Poisson distributionRhonda J Rosychuk
Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2J3, Canada
Biometrics 62:465-70. 2006..Pediatric self-inflicted injuries requiring presentation to Alberta emergency departments provide an illustration... - Identifying geographic areas with high disease rates: when do confidence intervals for rates and a disease cluster detection method agree?Rhonda J Rosychuk
Department of Pediatrics, University of Alberta, 9423 Aberhart Centre, Edmonton, Alberta, Canada
Int J Health Geogr 5:46. 2006..Conditions when these methods agree and disagree are provided. We use a dataset on self-inflicted injuries requiring medical attention as an illustration and give power comparisons for a variety of situations... - Comparison of variance estimation approaches in a two-state Markov model for longitudinal data with misclassificationR J Rosychuk
Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada T6G 2J3
Stat Med 25:1906-21. 2006..With smaller chains or higher misclassification probabilities, the bootstrap method appears to be the best choice... - Asthma presentations by adults to emergency departments in Alberta, Canada: a large population-based studyBrian H Rowe
Department of Emergency Medicine, University of Alberta, Edmonton, AB, Canada
Chest 135:57-65. 2009..Exacerbations are common in the emergency department (ED) setting. The objective of this study was to describe the epidemiology of asthma presentations to EDs made by adults in the province of Alberta, Canada... - Who comes back? Characteristics and predictors of return to emergency department services for pediatric mental health careAmanda S Newton
Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
Acad Emerg Med 17:177-86. 2010.... - Willingness of university nursing students to volunteer during a pandemicOlive Yonge
Academics, University of Alberta, Edmonton, Alberta, Canada
Public Health Nurs 27:174-80. 2010..The global threat of an influenza pandemic continues to grow and thus universities have begun emergency preparedness planning. This study examined stakeholder's knowledge, risk-perception, and willingness to volunteer... - Characteristics of patients who leave emergency departments without being seenBrian H Rowe
Department of Emergency Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
Acad Emerg Med 13:848-52. 2006..Patients leaving the emergency department (ED) without being seen (LWBS) by a physician have become a growing concern in overcrowded EDs. The purpose of this study was to determine the acuity level, reasons, and outcomes of LWBS cases... - A duty to treat during a pandemic? The time for talk is nowTracey M Bailey
Health Law Institute, Law Centre, University of Alberta, Edmonton, Alberta, T6G 2H5 Canada
Am J Bioeth 8:29-31. 2008 - A 4-year review of pediatric mental health emergencies in AlbertaAmanda S Newton
Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta
CJEM 11:447-54. 2009..We sought to determine and compare rates of pediatric mental health presentations and associated costs in emergency departments (EDs) in Alberta... - Metabolic risk varies according to waist circumference measurement site in overweight boys and girlsSteven T Johnson
School of Public Health, University of Alberta, Edmonton, Alberta T6G 2R7, Canada
J Pediatr 156:247-52.e1. 2010..To compare waist circumference (WC) values measured at 4 commonly recommended sites and examine the relationships between WC sites and markers of metabolic risk in a sample of overweight boys and girls referred for weight management... - Medical students and pandemic influenzaBenjamin Herman
University of Alberta, Edmonton, Alberta, Canada
Emerg Infect Dis 13:1781-3. 2007..Data from questionnaires such as this could help determine the role of medical students during a public health emergency... - The association between iron deficiency and febrile seizures in childhoodDawn S Hartfield
Department of Pediatrics, University of Alberta, Edmonton, Canada
Clin Pediatr (Phila) 48:420-6. 2009..The purpose of this study was to determine the association between iron deficiency and febrile seizures in a large cohort of children aged 6 to 36 months... - The prevalence of anal incontinence in post-partum women following obstetrical anal sphincter injuryRainbow Y T Tin
Department of Obstetrics and Gynecology, University of Alberta, Royal Alexandra Hospital, Edmonton, AB, Canada
Int Urogynecol J 21:927-32. 2010..We also assessed quality of life and prevalence of other pelvic floor symptoms... - Development of a clinical static and dynamic standing balance measurement tool appropriate for use in adolescentsCarolyn A Emery
Sport Medicine Centre, Faculty of Kinesiology, University of Calgary, 2500 University Dr NW, Calgary, Alberta, Canada T2N 4E4
Phys Ther 85:502-14. 2005..The purposes of this study were to determine the test-retest reliability of timed static (eyes open) and dynamic (eyes open and eyes closed) unipedal balance measurements and to examine factors associated with balance...