 | Stephen D WalterShow email addressDepartment of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada | Department of Health research methods, Evidence, and Impact ... |
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Stephen D Walter:Expert Impact
Concepts for whichStephen D Walterhas direct influence:Cerebral palsy,Subgroup effects,Psychosocial effects,Pulmonary artery catheter,Unfractionated heparin,Tibial fractures,Heart failure,Cancer incidence.
Stephen D Walter:KOL impact
Concepts related to the work of other authors for whichfor which Stephen D Walter has influence:Cerebral palsy,Cervical cancer,Mechanical ventilation,Quality life,Randomized controlled trials,Heart failure,Physical activity.
KOL Resume for Stephen D Walter
| Year | |
|---|---|
| 2022 | Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada |
| 2021 | Department of Health research methods, Evidence, and Impact (HEI), McMaster University, Hamilton, Ontario, Canada. |
| 2020 | Department of Health Research Methods, Evidence, and Impact, McMaster University, L8N 3Z5, Hamilton, Ontario, Canada |
| 2019 | Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada. |
| 2018 | Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main St W, Hamilton, ON L8S 48L, Canada |
| 2017 | Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON L8N3Z5, Canada |
| 2016 | Department of Clinical Epidemiology and Biostatistics, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4K1, Canada |
| 2015 | Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada. |
| 2014 | Department of Clinical Epidemiology and Biostatistics, McMaster University, CRL, Room 233, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada |
| 2013 | From the Heart Failure and Transplantation Program, Toronto General Hospital, University Health Network, Ontario, Canada (A.C.A., H.J.R.); Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada (T.A., S.D.W., G.H.G.); Department of Internal Medicine, Jagiellonian University Medical College, Krakow, Poland (M.J.); and Center for Health Behavior Monitoring and Intervention, University of Rhode Island, Kingston, RI (D.C.). Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton Health Sciences, Hamilton |
| 2012 | Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, 1280 Main Street West, Hamilton, ON, Canada, L8S 4K1 Clinical Epidemiology and Biostatics, Health Research Methodology Program, McMaster University, Hamilton, Ontario, Canada |
| 2011 | Department of Clinical Epidemiology and Biostatistics, McMaster University, Faculty of Health Sciences, Hamilton, Ontario, Canada Phone: +1‐905‐525‐9140, Fax: +1‐905‐577‐0017 |
| 2010 | Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada (SDW) CanChild Centre for Childhood Disability Research, McMaster University, Hamilton, Ontario, Canada |
| 2009 | From the *Department of Surgery, London Health Sciences Centre, London, Canada; †Department of Surgery, Hamilton General Hospital, Hamilton, Canada; ‡Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada; and §Department of Surgery, St. Michael's Hospital, Toronto, Canada. Department of Mathematics & Statistics, McMaster University, Hamilton, Ontario, Canada |
| 2008 | Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ont., Canada |
| 2007 | Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada L8N 3Z5 CanChild, Centre for Childhood Disability Research, McMaster University, IAHS Bldg 1400 Main St W., Hamilton, Ontario, L8S 1C7, Canada |
| Concept | World rank |
|---|---|
| modifiable uvr behaviors | #1 |
| aetiological studies | #1 |
| generating generating sets | #1 |
| statistical significance pvalues | #1 |
| influenzaattributable risk | #1 |
| region shapes | #1 |
| minimum event | #1 |
| adjustment overdetection | #1 |
| antibiotics algorithms | #1 |
| pcb contamination remediation | #1 |
| malignant moles | #1 |
| cbe pdd | #1 |
| average risk approach | #1 |
| reported scores gmfm | #1 |
| nnt mle | #1 |
| incidence projections canada | #1 |
| closed fractures life | #1 |
| blinding placebos pneumonia | #1 |
| current attributable | #1 |
| effects meta regression | #1 |
| asqme 17 years | #1 |
| children adult assistance | #1 |
| male melanoma melanosis | #1 |
| hand function measure | #1 |
| physical beta | #1 |
| beach vacations adolescence | #1 |
| effects patient preferences | #1 |
| bias exposure distribution | #1 |
| treatment sample size | #1 |
| simulation poisson distribution | #1 |
| interval cases comparison | #1 |
| definitions 5 | #1 |
| conditional risk ratio | #1 |
| key stakeholders debate | #1 |
| nursing residents enterobacteriaceae | #1 |
| mobile chest radiographs | #1 |
| urine cultures antibiotics | #1 |
| nlscy 2 samples | #1 |
| item sets gmfm66is | #1 |
| earlier work design | #1 |
| ddst school problems | #1 |
| future cancer management | #1 |
| cancer future burden | #1 |
| development context therapy | #1 |
| processed meat week | #1 |
| comparison estimate | #1 |
| topic neoplasms ontario | #1 |
| health beta | #1 |
| precision squared error | #1 |
| method metaanalyses | #1 |
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Prominent publications by Stephen D Walter
OBJECTIVE: Most children enjoy healthy childhoods with little need for specialized health care services. However, some children experience difficulties in early childhood and require access to and utilization of considerable health care resources over time. Although impaired motor function is the hallmark of the cerebral palsy (CP) syndromes, many children with this development disorder also experience sensory, communicative, and intellectual impairments and may have complex limitations ...
| Known for Psychological Health | Caregivers Children | Cerebral Palsy | Child Behavior | Stress Management |
The Health of Primary Caregivers of Children With Cerebral Palsy: How Does It Compare With That of Other Canadian Caregivers?
[ PUBLICATION ]
BACKGROUND: Caring for any child involves considerable resources, but the demands for these resources are often increased when caring for a child with a disability. These demands have implications for the psychologic and physical health of the caregiver (CG). Although a number of recent trends in health care stress the importance of studying and promoting the health of CGs of children with disabilities, the literature in this area exhibits 2 major weaknesses, ie, most studies draw ...
| Known for Primary Caregivers | Parents Children | Cerebral Palsy | Physical Health | Caring Child |
Effect of a Clinical Pathway to Reduce Hospitalizations in Nursing Home Residents With Pneumonia: A Randomized Controlled Trial
[ PUBLICATION ]
CONTEXT: Nursing home residents with pneumonia are frequently hospitalized. Such transfers may be associated with multiple hazards of hospitalization as well as economic costs.
OBJECTIVE: To assess whether using a clinical pathway for on-site treatment of pneumonia and other lower respiratory tract infections in nursing homes could reduce hospital admissions, related complications, and costs.
DESIGN, SETTING, AND PARTICIPANTS: A cluster randomized controlled trial of 680 residents aged ...
| Known for Clinical Pathway | Controlled Trial | Nursing Homes | Reduce Hospitalizations | Hospital Admissions |
Surgical Mask vs N95 Respirator for Preventing Influenza Among Health Care Workers: A Randomized Trial
[ PUBLICATION ]
CONTEXT: Data about the effectiveness of the surgical mask compared with the N95 respirator for protecting health care workers against influenza are sparse. Given the likelihood that N95 respirators will be in short supply during a pandemic and not available in many countries, knowing the effectiveness of the surgical mask is of public health importance.
OBJECTIVE: To compare the surgical mask with the N95 respirator in protecting health care workers against influenza.
DESIGN, SETTING, ...
| Known for Surgical Mask | N95 Respirator | Health Workers | Professional Influenza | Infectious Disease Transmission |
BACKGROUND: Globally, hip fractures are among the top 10 causes of disability in adults. For displaced femoral neck fractures, there remains uncertainty regarding the effect of a total hip arthroplasty as compared with hemiarthroplasty.
METHODS: We randomly assigned 1495 patients who were 50 years of age or older and had a displaced femoral neck fracture to undergo either total hip arthroplasty or hemiarthroplasty. All enrolled patients had been able to ambulate without the assistance of ...
| Known for Hip Arthroplasty | Replacement Life | Neck Fractures | 24 Months | Patients Assigned |
AIM: This study evaluated the efficacy of a child-focused versus context-focused intervention in improving performance of functional tasks and mobility in young children with cerebral palsy.
METHOD: A randomized controlled trial cluster research design enrolled 128 children (49 females, 79 males; age range 12 mo to 5 y 11 mo; mean age 3 y 6 mo, SD -1 y 5 mo) who were diagnosed with cerebral palsy. Children across levels I to V on the Gross Motor Classification System (GMFCS) were ...
| Known for Young Children | Cerebral Palsy | 6 Months | Randomized Controlled Trial | Focused Intervention |
OBJECTIVE: To assess the prevalence of psychological abuse, physical assault, and discrimination on the basis of gender and sexual orientation, and to examine the prevalence and impact of sexual harassment in residency training programs.
DESIGN: Self-administered questionnaire.
SETTING: McMaster University, Hamilton, Ont.
PARTICIPANTS: Residents in seven residency training programs during the academic year from July 1993 to June 1994. Of 225 residents 186 (82.7%) returned a completed ...
| Known for Sexual Harassment | Residency Training | Psychological Abuse | Respondents Discrimination | Physical Assault |
BACKGROUND: The effects of thromboprophylaxis with low-molecular-weight heparin, as compared with unfractionated heparin, on venous thromboembolism, bleeding, and other outcomes are uncertain in critically ill patients.
METHODS: In this multicenter trial, we tested the superiority of dalteparin over unfractionated heparin by randomly assigning 3764 patients to receive either subcutaneous dalteparin (at a dose of 5000 IU once daily) plus placebo once daily (for parallel-group twice-daily ...
| Known for Unfractionated Heparin | Hazard Ratio | Patients Dalteparin | Venous Thromboembolism | 5000 Iu |
BACKGROUND: To determine whether testing for DNA of oncogenic human papillomaviruses (HPV) is superior to the Papanicolaou (Pap) test for cervical-cancer screening, we conducted a randomized trial comparing the two methods.
METHODS: We compared HPV testing, using an assay approved by the Food and Drug Administration, with conventional Pap testing as a screening method to identify high-grade cervical intraepithelial neoplasia in women ages 30 to 69 years in Montreal and St. John's, ...
| Known for Papanicolaou Screening Tests | Pap Testing | Sensitivity Hpv | 95 Specificity | Screening Method |
OBJECTIVE: To assess whether a multifaceted intervention can reduce the number of prescriptions for antimicrobials for suspected urinary tract infections in residents of nursing homes.
DESIGN: Cluster randomised controlled trial.
SETTING: 24 nursing homes in Ontario, Canada, and Idaho, United States.
PARTICIPANTS: 12 nursing homes allocated to a multifaceted intervention and 12 allocated to usual care. Outcomes were measured in 4217 residents.
INTERVENTIONS: Diagnostic and treatment ...
| Known for Nursing Homes | Multifaceted Intervention | Tract Infections | Suspected Urinary | Controlled Trial |
ObjectiveTo estimate the mortality and length of stay in the intensive care unit (ICU) attributable to clinically important gastrointestinal bleeding in mechanically ventilated critically ill patients.DesignThree strategies were used to estimate the mortality attributable to bleeding in two multicentre databases. The first method matched patients who bled with those who did not (matched cohort), using duration of ICU stay prior to the bleed, each of six domains of the Multiple Organ ...
| Known for Attributable Mortality | Gastrointestinal Bleeding | Icu Stay | Intensive Unit | Mechanical Ventilation |
Randomized Trial of Reamed and Unreamed Intramedullary Nailing of Tibial Shaft Fractures
[ PUBLICATION ]
BACKGROUND: There remains a compelling biological rationale for both reamed and unreamed intramedullary nailing for the treatment of tibial shaft fractures. Previous small trials have left the evidence for either approach inconclusive. We compared reamed and unreamed intramedullary nailing with regard to the rates of reoperations and complications in patients with tibial shaft fractures.
METHODS: We conducted a multicenter, blinded randomized trial of 1319 adults in whom a tibial shaft ...
| Known for Unreamed Intramedullary | Reamed Nailing | Tibial Shaft | Patients Fractures | Nonunion Months |
Study to prospectively evaluate reamed intramedually nails in patients with tibial fractures (S.P.R.I.N.T.): Study rationale and design
[ PUBLICATION ]
BACKGROUND: Surgeons agree on the benefits of operative treatment of tibial fractures - the most common of long bone fractures - with an intramedullary rod or nail. Rates of re-operation remain high - between 23% and 60% in prior trials - and the two alternative nailing approaches, reamed or non-reamed, each have a compelling biological rationale and strong proponents, resulting in ongoing controversy regarding which is better.
METHODS/DESIGN: The objective of this trial was to assess ...
| Known for Tibial Fractures | Intramedullary Nail | Evaluate Reamed | Patients Fracture | Sprint Trial |
Withdrawal of Mechanical Ventilation in Anticipation of Death in the Intensive Care Unit
[ PUBLICATION ]
BACKGROUND: In critically ill patients who are receiving mechanical ventilation, the factors associated with physicians' decisions to withdraw ventilation in anticipation of death are unclear. The objective of this study was to examine the clinical determinants that were associated with the withdrawal of mechanical ventilation.
METHODS: We studied adults who were receiving mechanical ventilation in 15 intensive care units, recording base-line physiological characteristics, daily Multiple ...
| Known for Mechanical Ventilation | Hazard Ratio | Intensive Unit | Life Support | Factors Withdrawal |
