Carl Van Walraven

Carl Van Walraven's AcademicInfluence.com Rankings

Carl Van Walraven

Medical

#3464

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#3933

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Epidemiology

#666

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#692

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Carl Van Walraven

Mathematics

#7562

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#10259

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Statistics

#894

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#986

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Measure Theory

#2292

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#2746

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Carl Van Walraven's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

A Modification of the Elixhauser Comorbidity Measures Into a Point System for Hospital Death Using Administrative Data (2009) (1344)
Derivation and validation of an index to predict early death or unplanned readmission after discharge from hospital to the community (2010) (799)
Selecting Patients With Atrial Fibrillation for Anticoagulation: Stroke Risk Stratification in Patients Taking Aspirin (2004) (786)
Oral anticoagulants vs aspirin in nonvalvular atrial fibrillation: an individual patient meta-analysis. (2002) (752)
Adverse events among medical patients after discharge from hospital. (2004) (749)
Proportion of hospital readmissions deemed avoidable: a systematic review (2011) (646)
Effect of study setting on anticoagulation control: a systematic review and metaregression. (2006) (525)
The association between continuity of care and outcomes: a systematic and critical review. (2010) (467)
The effect of hospital occupancy on emergency department length of stay and patient disposition. (2003) (449)
Clinical inertia in response to inadequate glycemic control: do specialists differ from primary care physicians? (2005) (389)
Effect of Age on Stroke Prevention Therapy in Patients With Atrial Fibrillation: The Atrial Fibrillation Investigators (2009) (330)
Time-dependent bias was common in survival analyses published in leading clinical journals. (2004) (315)
Mycophenolate mofetil dose reduction and the risk of acute rejection after renal transplantation. (2003) (269)
Using the Johns Hopkins Aggregated Diagnosis Groups (ADGs) to Predict Mortality in a General Adult Population Cohort in Ontario, Canada (2011) (255)
Inhibition of serotonin reuptake by antidepressants and upper gastrointestinal bleeding in elderly patients: retrospective cohort study (2001) (251)
Ottawa Hospital Patient Safety Study: incidence and timing of adverse events in patients admitted to a Canadian teaching hospital (2004) (233)
Prevalence of information gaps in the emergency department and the effect on patient outcomes. (2003) (231)
Transition of care for hospitalized elderly patients--development of a discharge checklist for hospitalists. (2006) (214)
A clinical prediction rule to identify patients with atrial fibrillation and a low risk for stroke while taking aspirin. (2003) (202)
Association of Frailty and 1-Year Postoperative Mortality Following Major Elective Noncardiac Surgery: A Population-Based Cohort Study. (2016) (201)
Administrative database research has unique characteristics that can risk biased results. (2012) (201)
Accuracy of coding for possible warfarin complications in hospital discharge abstracts. (2006) (181)
A meta-analysis of hospital 30-day avoidable readmission rates. (2012) (178)
Incidence of potentially avoidable urgent readmissions and their relation to all-cause urgent readmissions (2011) (172)
Do advanced cardiac life support drugs increase resuscitation rates from in-hospital cardiac arrest? The OTAC Study Group. (1998) (168)
Impact of specialist follow-up in outpatients with congestive heart failure (2005) (166)
Anticoagulation intensity and outcomes among patients prescribed oral anticoagulant therapy: a systematic review and meta-analysis (2008) (166)
Predicting the risk of unplanned readmission or death within 30 days of discharge after a heart failure hospitalization. (2012) (164)
Unplanned readmissions after hospital discharge among patients identified as being at high risk for readmission using a validated predictive algorithm (2011) (153)
LACE+ index: extension of a validated index to predict early death or urgent readmission after hospital discharge using administrative data (2012) (150)
Frequency of adverse events in patients with poor anticoagulation: a meta-analysis (2007) (146)
What Is Necessary for High-Quality Discharge Summaries? (1999) (137)
Administrative database research infrequently used validated diagnostic or procedural codes. (2011) (133)
Effect of population-based interventions on laboratory utilization: a time-series analysis. (1998) (133)
Population-based study of repeat laboratory testing. (2003) (127)
The Surgical Site Infection Risk Score (SSIRS): A Model to Predict the Risk of Surgical Site Infections (2013) (116)
Renin-angiotensin system blockade and the risk of hyperkalemia in chronic hemodialysis patients. (2002) (111)
Survival trends in ESRD patients compared with the general population in the United States. (2014) (105)
Quality assessment of a discharge summary system. (1995) (104)
Frailty as a Predictor of Death or New Disability After Surgery: A Prospective Cohort Study. (2020) (104)
36th International Symposium on Intensive Care and Emergency Medicine (2016) (103)
36th International Symposium on Intensive Care and Emergency Medicine (2016) (103)
Validation of a clinical decision aid to discontinue in-hospital cardiac arrest resuscitations. (2001) (101)
Dictated versus database-generated discharge summaries: a randomized clinical trial. (1999) (100)
When laboratories report estimated glomerular filtration rates in addition to serum creatinines, nephrology consults increase. (2009) (100)
Competing risk bias was common in Kaplan-Meier risk estimates published in prominent medical journals. (2016) (100)
Effect of a nurse team coordinator on outcomes for hospitalized medicine patients. (2005) (99)
Association of Blood Donor Age and Sex With Recipient Survival After Red Blood Cell Transfusion. (2016) (97)
The effect of hospital-acquired infection with Clostridium difficile on length of stay in hospital (2012) (96)
The Association of Frailty With Outcomes and Resource Use After Emergency General Surgery: A Population-Based Cohort Study (2017) (96)
Adverse events following an emergency department visit (2007) (96)
Impact of physician continuity on death or urgent readmission after discharge among patients with heart failure (2013) (96)
Adverse Events Detected by Clinical Surveillance on an Obstetric Service (2006) (93)
The impact of adverse events in the intensive care unit on hospital mortality and length of stay (2008) (92)
Derivation of a clinical decision rule for the discontinuation of in-hospital cardiac arrest resuscitations. (1999) (91)
Leave ‘em Alone – Why Continuous Variables Should Be Analyzed as Such (2008) (89)
Dissemination of discharge summaries. Not reaching follow-up physicians. (2002) (88)
Effect of a controlled feedback intervention on laboratory test ordering by community physicians. (2004) (87)
The Kaiser Permanente inpatient risk adjustment methodology was valid in an external patient population. (2010) (84)
Burden of potentially avoidable anticoagulant-associated hemorrhagic and thromboembolic events in the elderly. (2007) (82)
Influence of educational, audit and feedback, system based, and incentive and penalty interventions to reduce laboratory test utilization: a systematic review (2015) (79)
The effect of hospital-acquired Clostridium difficile infection on in-hospital mortality. (2010) (76)
Surveying physicians to determine the minimal important difference: implications for sample-size calculation. (1999) (75)
Quantifying the impact of survivor treatment bias in observational studies. (2006) (75)
Identifying Obstructive Sleep Apnea in Administrative Data: A Study of Diagnostic Accuracy (2015) (73)
Information exchange among physicians caring for the same patient in the community (2008) (72)
The impact of frailty on outcomes and healthcare resource usage after total joint arthroplasty: a population-based cohort study. (2016) (71)
Did publication of a clinical practice guideline recommendation to screen for type 2 diabetes in women with gestational diabetes change practice? (2003) (71)
The independent association of provider and information continuity on outcomes after hospital discharge: implications for hospitalists. (2010) (66)
Impact of Immunosuppressive Medication on the Risk of Renal Allograft Failure due to Recurrent Glomerulonephritis (2009) (66)
External validation of the Hospital Frailty Risk Score and comparison with the Hospital-patient One-year Mortality Risk Score to predict outcomes in elderly hospitalised patients: a retrospective cohort study (2018) (65)
Effect of Blood Donor Characteristics on Transfusion Outcomes: A Systematic Review and Meta-Analysis. (2016) (63)
External validation of the Hospital-patient One-year Mortality Risk (HOMR) model for predicting death within 1 year after hospital admission (2015) (63)
Association of diagnostic radiation exposure and second abdominal-pelvic malignancies after testicular cancer. (2011) (60)
Using prospective clinical surveillance to identify adverse events in hospital (2011) (59)
Elective, Major Noncardiac Surgery on the Weekend: A Population-based Cohort Study of 30-day Mortality (2014) (59)
Predicting potential survival benefit of renal transplantation in patients with chronic kidney disease (2010) (59)
Restricted driver licensing for medical impairments: does it work? (2002) (57)
Identifying individuals with a reduced GFR using ambulatory laboratory database surveillance. (2005) (57)
In Reply. (2016) (55)
Vitamin B12 injections versus oral supplements. How much money could be saved by switching from injections to pills? (2001) (55)
Derivation and Validation of a Generalizable Preoperative Frailty Index Using Population-based Health Administrative Data. (2019) (54)
Standardized or narrative discharge summaries. Which do family physicians prefer? (1998) (52)
Risk of subsequent thromboembolism for patients with pre-eclampsia (2003) (52)
Incidence, follow-up, and outcomes of incidental abdominal aortic aneurysms. (2010) (52)
A prospective cohort study found that provider and information continuity was low after patient discharge from hospital. (2010) (50)
Quality gaps identified through mortality review (2016) (47)
Use of Preoperative Magnetic Resonance Imaging for Breast Cancer: A Canadian Population-Based Study. (2015) (45)
Risk of death or readmission among people discharged from hospital on Fridays. (2002) (43)
Diabetic patients with prior specialist care have better glycaemic control than those with prior primary care. (2005) (41)
Association of the Hospital Volume of Frail Surgical Patients Cared for with Outcomes after Elective, Major Noncardiac Surgery: A Retrospective Population-based Cohort Study (2017) (40)
Patient-level factors associated with methicillin-resistant Staphylococcus aureus carriage at hospital admission: a systematic review. (2013) (39)
Association of Polypharmacy with Survival, Complications, and Healthcare Resource Use after Elective Noncardiac Surgery: A Population-based Cohort Study (2018) (38)
The effect of hospitalization on oral anticoagulation control: a population-based study. (2007) (38)
The usefulness of administrative databases for identifying disease cohorts is increased with a multivariate model. (2010) (36)
PREHAB study: a protocol for a prospective randomised clinical trial of exercise therapy for people living with frailty having cancer surgery (2018) (36)
Interactive voice response systems for improving delivery of ambulatory care. (2009) (35)
Long-term outcomes and resource utilization of endovascular versus open repair of abdominal aortic aneurysms in Ontario. (2010) (35)
Association of Hospital-level Neuraxial Anesthesia Use for Hip Fracture Surgery with Outcomes: A Population-based Cohort Study (2017) (32)
Imaging for distant metastases in women with early-stage breast cancer: a population-based cohort study (2015) (32)
Prospective Comparison of Preoperative Predictive Performance Between 3 Leading Frailty Instruments (2019) (28)
Improving patient safety: moving beyond the “hype” of medical errors (2005) (28)
Individual patient meta-analysis--rewards and challenges. (2010) (28)
Adverse Events following 12 and 18 Month Vaccinations: a Population-Based, Self-Controlled Case Series Analysis (2011) (28)
Association between perioperative beta blocker use and cancer survival following surgical resection. (2018) (27)
Using an interactive voice response system to improve patient safety following hospital discharge. (2007) (27)
Combining ratings from multiple physician reviewers helped to overcome the uncertainty associated with adverse event classification. (2007) (27)
Effect of Preoperative Geriatric Evaluation on Outcomes After Elective Surgery: A Population‐Based Study (2017) (27)
The accuracy of using integrated electronic health care data to identify patients with undiagnosed diabetes mellitus. (2012) (26)
Reliability of the Peer-Review Process for Adverse Event Rating (2012) (26)
Effect of an interactive voice response system on oral anticoagulant management (2009) (25)
Influence of neighborhood household income on early death or urgent hospital readmission. (2013) (24)
Frailty and long-term postoperative disability trajectories: a prospective multicentre cohort study. (2020) (24)
The use of quality indicators to promote accountability in health care: the good, the bad, and the ugly (2012) (24)
The Hospital-patient One-year Mortality Risk score accurately predicted long-term death risk in hospitalized patients. (2014) (23)
Competing risk bias in Kaplan-Meier risk estimates can be corrected. (2016) (23)
Why are investigations not recommended by practice guidelines ordered at the periodic health examination? (2000) (23)
Maintaining continuity of care: a look at the quality of communication between Ontario emergency departments and community physicians. (2005) (22)
Influence of house-staff experience on teaching-hospital mortality: the "July phenomenon" revisited. (2011) (22)
Use of vitamin B12 injections among elderly patients by primary care practitioners in Ontario. (1999) (22)
Predicting Stroke Risk Based on Health Behaviours: Development of the Stroke Population Risk Tool (SPoRT) (2015) (21)
mHOMR: a feasibility study of an automated system for identifying inpatients having an elevated risk of 1-year mortality (2019) (21)
Clinical effects of blood donor characteristics in transfusion recipients: protocol of a framework to study the blood donor–recipient continuum (2015) (21)
The Procedural Index for Mortality Risk (PIMR): an index calculated using administrative data to quantify the independent influence of procedures on risk of hospital death (2011) (21)
Comparing methods to calculate hospital-specific rates of early death or urgent readmission (2012) (21)
Validation of administrative database codes for acute kidney injury in kidney transplant recipients (2016) (20)
Migraine headache and risk of self‐harm and suicide: A population‐based study in Ontario, Canada (2016) (19)
Pediatric tonsillectomy is a resource-intensive procedure: a study of Canadian health administrative data (2017) (18)
Utilization and outcomes of HbA1c testing: a population-based study (2006) (18)
The HOMR-Now! Model Accurately Predicts 1-Year Death Risk for Hospitalized Patients on Admission. (2017) (18)
Anemia prevalence and incidence and red blood cell transfusion practices in aneurysmal subarachnoid hemorrhage: results of a multicenter cohort study (2018) (17)
Coding diagnoses and procedures using a high-quality clinical database instead of a medical record review. (2001) (17)
Addition of time-dependent covariates to a survival model significantly improved predictions for daily risk of hospital death. (2013) (17)
The prevalence of potentially preventable deaths in an acute care hospital (2017) (16)
Derivation and Validation of a Novel Risk Score to Predict Overcorrection of Severe Hyponatremia: The Severe Hyponatremia Overcorrection Risk (SHOR) Score. (2019) (16)
Coding accuracy of abdominal aortic aneurysm repair procedures in administrative databases - a note of caution. (2011) (16)
Comparative assessment of two frailty instruments for risk-stratification in elderly surgical patients: study protocol for a prospective cohort study (2016) (16)
Changes in surrogate outcomes can be translated into clinical outcomes using a Monte Carlo model. (2009) (16)
Survival of men with prostate cancer undergoing radical prostatectomy in Ontario. (2014) (16)
Effect of provider continuity on test repetition. (2006) (16)
Automated patient assessments after outpatient surgery using an interactive voice response system. (2008) (15)
When projecting required effectiveness of interventions for hospital readmission reduction, the percentage that is potentially avoidable must be considered. (2013) (15)
A Bayesian Comparison of Frailty Instruments in Noncardiac Surgery: A Cohort Study (2020) (14)
Derivation and Validation of a Model to Predict Daily Risk of Death in Hospital (2011) (14)
One- and five-year risk of death and cardiovascular complications for hospitalized patients with hyperglycemia without diagnosed diabetes: An observational study. (2014) (14)
Long-term survival and resource use in critically ill cardiac surgery patients: a population-based study (2018) (13)
Predicting post-discharge death or readmission: deterioration of model performance in population having multiple admissions per patient. (2013) (13)
The TEND (Tomorrow’s Expected Number of Discharges) Model Accurately Predicted the Number of Patients Who Were Discharged from the Hospital the Next Day (2017) (13)
The influence of incidental abdominal aortic aneurysm monitoring on patient outcomes. (2011) (13)
Subarachnoid hemorrhage admissions retrospectively identified using a prediction model (2016) (12)
Hospital-, Anesthesiologist-, and Patient-level Variation in Primary Anesthesia Type for Hip Fracture Surgery: A Population-based Cross-sectional Analysis (2018) (12)
Radiographic monitoring of incidental abdominal aortic aneurysms: a retrospective population-based cohort study (2011) (12)
Derivation and validation of a diagnostic score based on case-mix groups to predict 30-day death or urgent readmission (2012) (12)
Influence of antibiotics and case exposure on hospital-acquired Clostridium difficile infection independent of illness severity. (2017) (12)
A population‐based comparison of joint survival of hemiarthroplasty versus total shoulder arthroplasty in osteoarthritis and rheumatoid arthritis (2019) (11)
Independent influence of negative blood cultures and bloodstream infections on in-hospital mortality (2014) (11)
Erratum to: 36th International Symposium on Intensive Care and Emergency Medicine (2016) (10)
Evaluation of a preoperative personalized risk communication tool: a prospective before-and-after study (2020) (10)
Chronic rhinosinusitis identification in administrative databases and health surveys: A systematic review (2016) (10)
Risk of Intracerebral Hemorrhage in Patients With Arterial Versus Cardiac Origin of Cerebral Ischemia on Aspirin or Placebo: Analysis of Individual Patient Data From 9 Trials (2004) (10)
Migraineurs were reliably identified using administrative data. (2016) (10)
An hypothesis paper on practice environment and the provision of health care: could hospital occupancy rates effect quality? (2000) (10)
The Utility of Unplanned Early Hospital Readmissions as a Health Care Quality Indicator. (2015) (10)
Erratum to: 36th International Symposium on Intensive Care and Emergency Medicine (2016) (10)
Reexamination of the UN10 Rule to Discontinue Resuscitation During In-Hospital Cardiac Arrest (2019) (9)
Enriched administrative data can be used to retrospectively identify all known cases of primary subarachnoid hemorrhage. (2016) (9)
Urgent readmission rates can be used to infer differences in avoidable readmission rates between hospitals. (2012) (9)
Practice guidelines and practicing physicians-who's guiding whom? (2002) (9)
Venous thromboembolism and transfusion after major abdominopelvic surgery. (2019) (9)
Trends in 1-year survival of people admitted to hospital in Ontario, 1994–2009 (2013) (9)
Association of Preoperative Anticholinergic Medication Exposure With Postoperative Healthcare Resource Use and Outcomes: A Population-based Cohort Study. (2019) (9)
Effectiveness of a computerized drug-monitoring program to detect and prevent adverse drug events and medication non-adherence in outpatient ambulatory care: study protocol of a randomized controlled trial (2015) (9)
The influence of cholinesterase inhibitor therapy for dementia on risk of cardiac pacemaker insertion: a retrospective, population-based, health administrative databases study in Ontario, Canada (2015) (9)
The effect of a hepatitis serology testing algorithm on laboratory utilization. (2002) (8)
Oral anticoagulants vs. aspirin for stroke prevention in patients with non-valvular atrial fibrillation: the verdict is in. (2003) (8)
Derivation and Validation of the Surgical Site Infections Risk Model Using Health Administrative Data (2016) (8)
A reader's guide to the evaluation of prognostic studies. (1996) (8)
Correlation between serial tests made disease probability estimates erroneous. (2009) (8)
Evaluating the Clinical Effect of Female Blood Donors of Child-Bearing Age on Maternal and Neonatal Outcomes: A Cohort Study. (2019) (6)
How Do Common Comorbidities Modify the Association of Frailty With Survival After Elective Noncardiac Surgery? A Population-Based Cohort Study. (2019) (6)
Effect of blood donor characteristics on transfusion outcomes: a protocol for systematic review and meta-analysis (2014) (6)
External validation of the modified LACE+, LACE+, and LACE scores to predict readmission or death after hospital discharge. (2021) (6)
mHOMR: the acceptability of an automated mortality prediction model for timely identification of patients for palliative care (2021) (6)
Epidemiology and outcomes of bloodstream infections in patients discharged from the emergency department. (2015) (5)
Peripheral Nerve Blocks and Potentially Attributable Adverse Events in Older People with Hip Fracture: A Retrospective Population-based Cohort Study (2021) (5)
mHOMR: a prospective observational study of an automated mortality prediction model to identify patients with unmet palliative needs (2021) (5)
Systematic radiologic detection of kidney stones in Canadian children: a new era of asymptomatic stones? (2019) (5)
Derivation of a Predictive Model for Graft Loss Following Acute Kidney Injury in Kidney Transplant Recipients (2017) (5)
Bootstrap imputation with a disease probability model minimized bias from misclassification due to administrative database codes. (2017) (5)
How Do Common Comorbidities Modify the Association of Frailty With Survival After Elective Noncardiac Surgery? A Population-Based Cohort Study. (2019) (5)
Derivation and validation of a MEDLINE search strategy for research studies that use administrative data. (2010) (4)
Home-based prehabilitation with exercise to improve postoperative recovery for older adults with frailty having cancer surgery: the PREHAB randomised clinical trial. (2022) (4)
Factors associated with zinc levels in hospitalized patients: An observational study using routinely collected data. (2020) (4)
Predicting 1-Year Mortality After Cardiac Surgery Complicated by Prolonged Critical Illness: Derivation and Validation of a Population-Based Risk Model. (2020) (4)
The Effect of Transplant Volume and Patient Case Mix on Center Variation in Kidney Transplantation Outcomes (2019) (4)
Trends in prostate biopsy in Ontario, 1992-2014: a cohort study. (2016) (4)
Prognosticating with the Hospitalized‐patient One‐year Mortality Risk Score Using Information Abstracted from the Medical Record (2017) (4)
The Influence of Hospitalist Continuity on the Likelihood of Patient Discharge in General Medicine Patients (2018) (4)
Administrative data measured surgical site infection probability within 30 days of surgery in elderly patients. (2016) (4)
Does adding risk-trends to survival models improve in-hospital mortality predictions? A cohort study (2011) (4)
Incidence and trends of central line associated pneumothorax using radiograph report text search versus administrative database codes (2018) (3)
Back to Bayesian: A strategy to enhance prognostication of metastatic spine disease (2019) (3)
Frequency and Type of Outpatient Visits for Patients With Cardiovascular Ambulatory‐Care Sensitive Conditions During the COVID‐19 Pandemic and Subsequent Outcomes: A Retrospective Cohort Study (2023) (3)
In reply to 'dialysis vintage could confound survival trends in ESRD patients'. (2014) (3)
Case-Ascertainment Models to Identify Adults with Obstructive Sleep Apnea Using Health Administrative Data: Internal and External Validation (2021) (3)
Development and validation of an administrative data algorithm to identify adults who have endoscopic sinus surgery for chronic rhinosinusitis (2017) (3)
The Ottawa SAH search algorithms: protocol for a multi- centre validation study of primary subarachnoid hemorrhage prediction models using health administrative data (the SAHepi prediction study protocol) (2018) (3)
Case Mix, Patterns of Care, and Inpatient Outcomes Among Ontario Kidney Transplant Centers: A Population-Based Study (2018) (3)
Socioeconomic Status and Kidney Transplant Outcomes in a Universal Healthcare System: A Population-based Cohort Study (2019) (3)
A novel prevention bundle to reduce incisional infections after radical cystectomy. (2020) (3)
Administrative database code accuracy did not vary notably with changes in disease prevalence. (2016) (2)
The Prognostic Value of Serum Zinc Levels in Acutely Hospitalized Patients: a Systematic Review (2021) (2)
A General Population Utility Valuation Study For Metastatic Epidural Spinal Cord Compression Health States. (2019) (2)
The Psychometric Properties of a Self-Administered, Open-Source Module for Valuing Metastatic Epidural Spinal Cord Compression Utilities (2018) (2)
Death and Recovery of Kidney Function Among Patients Continued on Dialysis After Discharge From Hospital Stays Complicated by Acute Kidney Injury: A Cohort Study. (2019) (2)
The risk of death or unplanned readmission after discharge from a COVID-19 hospitalization in Alberta and Ontario (2022) (2)
Relationship between Plasma Zinc and Red Blood Cell Zinc Levels in Hospitalized Patients. (2022) (2)
Derivation and Internal Validation of a Model to Predict the Probability of Severe Acute Respiratory Syndrome Coronavirus-2 Infection in Community People (2020) (2)
Improved Correction of Misclassification Bias With Bootstrap Imputation. (2018) (2)
Association of Splanchnic Vein Thrombosis on Survival: 15‐Year Institutional Experience With 1561 Cases (2020) (2)
Can Text-Search Methods of Pathology Reports Accurately Identify Patients with Rectal Cancer in Large Administrative Databases? (2018) (1)
Effect of follow-up physician visits on emergency readmissions. (2002) (1)
Bootstrap imputation minimized misclassification bias when measuring Colles' fracture prevalence and its associations using health administrative data. (2018) (1)
ASSOCIATION OF ANTIBIOTIC ALLERGY LABELS WITH HOSPITAL LENGTH OF STAY. (2022) (1)
Concurrent external validation of bloodstream infection probability models. (2022) (1)
Changes in outpatient care patterns and subsequent outcomes during the COVID-19 pandemic: A retrospective cohort analysis from a single payer healthcare system (2022) (1)
Protocol for the derivation and external validation of a 30-day mortality risk prediction model for older patients having emergency general surgery (PAUSE score—Probability of mortality Associated with Urgent/emergent general Surgery in oldEr patients score) (2020) (1)
Risk of death or readmission is highest for Friday discharges from hospital. (2002) (1)
A new "angle" on aortic neck angulation measurement. (2016) (1)
A General Population Utility Valuation Study for Metastatic Epidural Spinal Cord Compression Health States. (2019) (1)
Development and evaluation of an evidence-based, theory-grounded online Clinical Frailty Scale tutorial. (2022) (1)
Accuracy of Administrative Database Algorithms for Hospitalized Pneumonia in Adults: a Systematic Review (2021) (1)
Shape of the association between preoperative hemoglobin level and postoperative outcomes in patients undergoing primary arthroplasty (2022) (0)
Should sodium-glucose cotransporter-2 inhibitors be first-line treatment for patients with type 2 diabetes? (2020) (0)
A Point-Based Model to Predict Absolute Risk of Revision in Anatomic Shoulder Arthroplasty (2019) (0)
Highlights of the Canadian Frailty Network (CFN) Highly Qualified Personnel Poster Session (2019) (0)
Highlights of the Canadian Frailty Network (CFN) Highly Qualified Personnel Poster Session (2019) (0)
MP80-02 DERIVATION AND VALIDATION OF TEXT SEARCH ALGORITHMS FOR RENAL AND ADRENAL LESION IDENTIFICATION IN RADIOLOGY TEXT REPORTS (2019) (0)
MON-LB029 The Influence of SGLT-2 Inhibitors and Other Glucose-Lowering Therapies on All-Cause Mortality Risk and Cardiovascular Outcomes in Older Patients with Newly Treated Type 2 Diabetes: A Population-Based Cohort Study (2019) (0)
Time-dependent analysis in CHF follow-up (2005) (0)
Guideline-Concordant Antibiotic Therapy for the Hospital Treatment of Community-Acquired Pneumonia and 1-Year All-Cause and Cardiovascular Mortality in Elderly Patients Surviving to Discharge. (2023) (0)
The effect of participation in a weight loss programme on short-term health resource utilization. (2002) (0)
Overestimation of anticoagulant benefit in patients with atrial fibrillation and low life expectancy: evidence from 12 randomized trials (2023) (0)
The Impact of Improved Population Life Expectancy in Survival Trend Analyses of Specific Diseases. (2016) (0)
The Network Relative Model Accuracy (NeRMA) Score can quantify the relative accuracy of prediction models in concurrent external validations. (2022) (0)
In Reply. (2017) (0)
Should emergentologists follow up on patients diagnosed with UTI having negative urine cultures? Implications for processing post‐discharge laboratory results (2018) (0)
Predictive Models for Kidney Recovery and Death in Patients Continuing Dialysis as Outpatients after Starting In Hospital. (2023) (0)
Evidence for overuse of cardiovascular healthcare services in high-income countries: protocol for a systematic review and meta-analysis (2022) (0)
Reviewing the medical literature: five notable articles in general internal medicine from 2010 and 2011 (2012) (0)
Primary preventative care of hematopoietic stem cell transplant survivors: time to educate and empower recipients and providers. (2022) (0)
Bias in revascularization study (2007) (0)
A time series would have been better. (2001) (0)
External Validation Demonstrated The Ottawa SAH Prediction Models Can Identify pSAH Using Health Administrative Data. (2020) (0)
Response to letter to the editor on administrative database research infrequently uses validated diagnostic or procedural codes. (2012) (0)
Outcomes following coronary artery bypass grafting with multiple arterial grafting by pump status in men and women. (2023) (0)
Derivation and external validation of a 30-day mortality risk prediction model for older patients having emergency general surgery. (2022) (0)
Imputing missing laboratory results may return erroneous values because they are not missing at random. (2022) (0)
The “1-year-death number needed to treat” for comparing the impact of distinct interventions on patient outcomes (2019) (0)
Can We Use Administrative Data to Accurately Identify Patients Who Receive a Prostate Biopsy? (2018) (0)
Ximelagatran was noninferior to warfarin in preventing stroke and systemic embolism in atrial fibrillation. (2004) (0)
Laboratory Test Results Differ Significantly When They are Not Ordered: Implications for Imputing Missing Lab Data (2022) (0)
The Independent Association Between Plasma And Red Blood Cell Zinc Levels With Long-Term Outcomes Of Hospitalized Patients (2023) (0)
Minimizing misclassification bias with a model to identify acetabular fractures using health administrative data (2021) (0)

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University of Ottawa

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