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Publication Results (887)

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  • Causes of death in rheumatoid arthritis: how do they compare to the general population?

    Widdifield J, Paterson JM, Huang A, Bernatsky S. Arthritis Care Res (Hoboken). 2018; 70(12):1748-55. Epub 2018 Mar 7.

  • Does metformin usage improve survival in head and neck squamous cell carcinoma? A population-based study

    Quimby AE, Lebo NL, Griffiths R, Hall S, Dimitroulakos J, Johnson-Obaseki S. J Otolaryngol Head Neck Surg. 2018; 47(1):74. Epub 2018 Dec 4.

  • Regional differences in use of endoscopic ultrasonography in Ontario: a population-based retrospective cohort study

    James PD, Hegagi M, Antonova L, Tinmouth J, Heitman SJ, Simone C, Yeung E, Yong E. CMAJ Open. 2017; 5(2):E437-43.

  • Avoidable mortality across Canada from 1975 to 1999

    James PD, Manuel DG, Mao Y. BMC Public Health. 2006; 6:137.

  • Clinical indications associated with opioid initiation for pain management in Ontario, Canada: a population-based cohort study

    Pasricha SV, Tadrous M, Khuu W, Juurlink DN, Mamdani MM, Paterson JM, Gomes T. Pain. 2018; 159(8):1562-8. Epub 2018 May 16.

  • Death and chronic disease risk associated with poor life satisfaction: a population-based cohort study

    Rosella LC, Fu L, Buajitti E, Goel V. Am J Epidemiol. 2019; 188(2):323-31. Epub 2018 Oct 27.

  • September 2019

    • Risks of preoperative anemia in women undergoing elective hysterectomy and myomectomy
    • Sex-specific differences in end-of-life burdensome interventions and antibiotic therapy in nursing home residents with advanced dementia
    • Chronic physical conditions and risk for perinatal mental illness: a population-based retrospective cohort study
    • Physician availability in long-term care and resident hospital transfer: a retrospective cohort study
    ICES in the News
    • Population-based secular trends in lower extremity amputation for diabetes and peripheral artery disease
    • Opioid prescribing after surgery in the United States, Canada and Sweden
    • Sex differences in long‐term survival after major cardiac surgery: a population‐based cohort study
    • Trends in the use of cardiac imaging for patients with heart failure in Canada
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    • Days spent at home in the last 6 months of life: a quality indicator of end of life care in patients with hematologic malignancies
    • Trends in use of medical imaging in US health care systems and in Ontario, Canada, 2000-2016
    • Ambient air pollution and the risk of atrial fibrillation and stroke: a population-based cohort study
    • Incidence of hospitalizations and emergency department visits for herpes zoster in immunocompromised and immunocompetent adults in Ontario, Canada, 2002-2016
    • Understanding those overdue for cancer screening by five years or more: a retrospective cohort study in Ontario, Canada
    • Impact of the 2016 policy change on the delivery of Medscheck services in Ontario: an interrupted time-series analysis
    • The impact of hospital harm on length of stay, costs of care and length of person-centred episodes of care: a retrospective cohort study
  • November 2019

    • Association between neighborhood walkability and predicted 10-year cardiovascular disease risk: the Cardiovascular Health in Ambulatory Care Research Team (CANHEART) cohort
    • Risk of involuntary admission among first-generation ethnic minority groups with early psychosis: a retrospective cohort study using health administrative data
    • Perinatal outcomes for untreated women with gestational diabetes by IADPSG criteria: a population-based study
    • Hypertrophic cardiomyopathy-related sudden cardiac death in young people in Ontario
    Research Video
    • One-year home-time and mortality after thrombolysis compared with nontreated patients in a propensity-matched analysis
    ICES in the News
    • The uptake of the pharmacy-dispensed naloxone kit program in Ontario: A population-based study
    • An opioid prescription for men undergoing minor urologic surgery is associated with an increased risk of new persistent opioid use
    • Clinical effectiveness of cardiac noninvasive diagnostic testing in patients discharged from the emergency department for chest pain
    • Uptake of colorectal cancer screening by physicians is associated with greater uptake by their patients
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    • 90-90-90 for everyone? Access to HIV care and treatment for people with HIV who experience imprisonment in Ontario, Canada
    • Association between angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, and suicide
    • Potential impact of changes in administrative database coding methodology on research and policy decisions: an example from the Ontario Health Insurance Plan
    • Pitfalls in measuring temporal trends for late diagnosis of viral hepatitis
    • Incremental healthcare utilisation and costs among new senior high-cost users in Ontario, Canada: a retrospective matched cohort study
    • Identifying Ontario geographic regions to assess adults who present to hospital with laboratory-defined conditions: a descriptive study
    • Inequity in access to transcatheter aortic valve replacement: a pan-Canadian evaluation of wait-times
  • February 2020

    • Mortality in a cohort of 3.1 million children, adolescents and young adults
    • Factors associated with emergency department presentation after total joint arthroplasty: a population-based retrospective cohort study
    • Sex differences in care need and survival in patients admitted to nursing home poststroke
    • Evaluation of opioid discontinuation after non-orthopaedic surgery among chronic opioid users: a population-based cohort study
      ICES in the News
      • First-ever ischemic stroke and incident major adverse cardiovascular events in 93 627 older women and men
      • Closed for business? Using a mixture model to explore the supply of psychiatric care for new patients
      • Utilization of advanced cardiovascular therapies in the United States and Canada: an observational study of New York and Ontario administrative data
      • Hydromorphone and the risk of infective endocarditis among people who inject drugs: a population-based, retrospective cohort study
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      • The impact of repeated vaccination using 10-year vaccination history on protection against influenza in older adults: a test-negative design study across the 2010/11 to 2015/16 influenza seasons in Ontario, Canada
      • Impact of a publicly funded herpes zoster immunization program on the burden of disease in Ontario, Canada: a population-based study
      • Socioeconomic status and days alive and out of hospital after major elective noncardiac surgery: a population-based cohort study
      • Infant and maternal outcomes for women who experience imprisonment in Ontario Canada: a retrospective cohort study
      • Health care utilization for musculoskeletal issues during the pre-diagnosis period in psoriatic arthritis: a population-based study
      • Incidence and outcomes of invasive fungal infection among solid organ transplant recipients: a population-based cohort study
      • Impact of diabetes on colorectal cancer stage and mortality risk: a population-based cohort study
    • March 2020

      • Ethnic variation in the conversion of prediabetes to diabetes among immigrant populations relative to Canadian-born residents: a population-based cohort study
      • Evaluation of a common prescribing cascade of calcium channel blockers and diuretics in older adults with hypertension
      • Association of tympanostomy tubes with future assistive hearing devices – a population based study
        ICES in the News
        • Early experience with medical assistance in dying in Ontario, Canada: a cohort study
        • Validation study of health administrative data algorithms to identify individuals experiencing homelessness and estimate population prevalence of homelessness in Ontario, Canada
        • Incidence of chronic obstructive pulmonary disease in people with HIV in Ontario, 1996–2015: a retrospective population-based cohort study
        • Diabetes prevalence, incidence and mortality in First Nations and other people in Ontario, 1995–2014: a population-based study using linked administrative data
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        • Effectiveness of confidential reports to physicians on their prescribing of antipsychotic medications in nursing homes
        • Estimating the net benefit of improvements in hospital performance: G-computation with hierarchical regression models
        • Publicly funded home care service use in the first 2 years after spinal cord injury in Ontario, Canada
        • Antibiotic prescribing choices and their comparative C. difficile infection risks: a longitudinal case-cohort study
        • Comparing an artificial neural network to logistic regression for predicting ED visit risk among patients with cancer: a population-based cohort study
        • The association between climate, geography and respiratory syncitial virus hospitalizations among children in Ontario, Canada: a population-based study
        • Urgent outpatient care following mental health ED visits: a population-based study
        • Comparison of payment changes and Choosing Wisely recommendations for use of low-value laboratory tests in the United States and Canada
      • May 2020

        • COVID-19 Laboratory Testing in Ontario: Patterns of Testing and Characteristics of Individuals Tested, as of April 30, 2020
        • Population-based estimates of health care utilization and expenditures by adults during the last 2 years of life in Canada’s single-payer health system
        • Association between traumatic brain injury and prison charges: a population-based cohort study
        • Five-year risk of admission to long-term care home and death for older adults given a new diagnosis of dementia: a population-based retrospective cohort study
        • Emergency department use by pregnant women in Ontario: a retrospective population-based cohort study
        ICES in the News
        • Inequity in access to transcatheter aortic valve replacement: a pan-Canadian evaluation of wait-times
        • Physician-based availability of psychotherapy in Ontario: a population-based retrospective cohort study
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        • An international cohort study of birth outcomes associated with hospitalized acute respiratory infection during pregnancy
        • Urban green space and the risks of dementia and stroke
        • Diabetes-induced eye disease among First Nations people in Ontario: a longitudinal, population-based cohort study
        • Association between immigration status and acute stroke care: a retrospective study
        • Long-term survival and costs following extracorporeal membrane oxygenation in critically ill children—a population-based cohort study
        • Use of sodium–glucose cotransporter-2 inhibitors and risk of acute kidney injury in older adults with diabetes: a population-based cohort study
        • Impact of stopping trastuzumab in early breast cancer: a population-based study in Ontario, Canada
        • Preterm birth, unplanned hospital contact, and mortality in infants born to teenage mothers in five countries: an administrative data cohort study
      • Severe pain at the end of life: a population-level observational study

        Hagarty AM, Bush SH, Talarico R, Lapenskie J, Tanuseputro P. BMC Palliat Care. 2020; 19(1):60. Epub 2020 Apr 30. DOI:

      • July 2020

        • Cost-effectiveness of investment in end-of-life home care to enable death in community settings
        • Association between palliative care and healthcare outcomes among adults with terminal non-cancer illness: population based matched cohort study
        ICES in the News
        • Predictors of suicide at time of diagnosis in schizophrenia spectrum disorder: a 20-year total population study in Ontario, Canada
        • COVID-19 Laboratory Testing in Ontario: Patterns of Testing and Characteristics of Individuals Tested, as of April 30, 2020
        • Effect of academic detailing on promoting appropriate prescribing of antipsychotic medication in nursing homes: a cluster randomized clinical trial
        • Geographic Variation in Primary Care Need, Service Use and Providers in Ontario, 2015/16
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        • Cardiac intervention rates for older patients with acute myocardial infarction in the United States and Ontario, 2003–2013: a retrospective cohort study
        • Variability in patient sociodemographics, clinical characteristics, and healthcare service utilization among 107,302 treatment seeking smokers in Ontario: a cross-sectional comparison
        • Primary care reform and funding equity for mental health disorders in Ontario: a retrospective observational population-based study
        • Validation of a type 1 diabetes algorithm using electronic medical records and administrative healthcare data to study the population incidence and prevalence of type 1 diabetes in Ontario, Canada
        • Clinical effectiveness of cardiac noninvasive diagnostic testing in outpatients evaluated for stable coronary artery disease
        • Early operative management in patients with adhesive small bowel obstruction: population-based cost analysis
        • Trends in very early discharge from hospital for newborns under midwifery care in Ontario from 2003 to 2017: a retrospective cohort study
        • Machine learning for identifying medication-associated acute kidney injury
      • August 2020

        • Death and long-term disability after gun injury: a cohort analysis
        • Patient-level characteristics and inequitable access to inpatient electroconvulsive therapy for depression: a population-based cross-sectional study
        • Trends in the medical use of synthetic cannabinoids among older adults in Ontario, Canada
        ICES in the News
        • COVID-19 Laboratory Testing in Ontario: Patterns of Testing and Characteristics of Individuals Tested, as of April 30, 2020
        • Clinical effectiveness of cardiac noninvasive diagnostic testing in outpatients evaluated for stable coronary artery disease
        • Maternal cannabis use in pregnancy and child neurodevelopmental outcomes
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        • Sex- and age-specific differences in COVID-19 testing, cases and outcomes: a population-wide study in Ontario, Canada
        • Direct and indirect pathways between low-income status and becoming a high-cost healthcare user in Ontario, Canada: a mediation analysis of health risk behaviors
        • Quality of antenatal care for women who experience imprisonment in Ontario, Canada
        • Persistent socioeconomic inequalities in location of death and receipt of palliative care: a population-based cohort study
        • Material deprivation and access to cancer care in a universal health care system
        • Receipt of routine preventive care among infant daughters and sons of immigrant mothers in Ontario, Canada: a retrospective cohort study
        • Population trends in lobular carcinoma of the breast: the Ontario experience
        • Severe nutritional complications after bariatric surgery in Ontario adults: a population-based descriptive study
        • Health care use and costs of children, adolescents, and young adults with somatic symptom and related disorders
      • September 2020

        • COVID-19 in immigrants, refugees and other newcomers in Ontario: characteristics of those tested and those confirmed positive, as of June 13, 2020
        • Assessment of health conditions and health service use among transgender patients in Canada
        • Describing differences among recent immigrants and long-standing residents waiting for long-term care: a population-based retrospective cohort study
        ICES in the News
        • A case-control study of the Sub-Acute care for Frail Elderly (SAFE) unit on hospital readmission, emergency department visits and continuity of post-discharge care
        • Low-density lipoprotein cholesterol and adverse cardiovascular events after percutaneous coronary intervention
        • Quality of antenatal care for women who experience imprisonment in Ontario, Canada
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        • Childhood food insecurity and incident diabetes: a longitudinal cohort study of 34 042 children in Ontario, Canada
        • Diagnosis of chronic hepatitis B peri‐complication: risk factors and trends over time
        • Outcomes after the regionalization of care for high-grade endometrial cancers: a population-based study
        • High risk of Clostridium difficile infection among spinal cord injured patients after the use of antibiotics commonly used to treat urinary tract infections
        • Kidney function and potassium monitoring after initiation of renin-angiotensin-aldosterone system blockade therapy and outcomes in 2 North American populations
        • Long-term survival after surgical or percutaneous revascularization in patients with diabetes and multivessel coronary disease
        • Prevalence and predictors of reincarceration after correctional center release: a population-based comparison of individuals with and without schizophrenia in Ontario, Canada
        • Uptake of the heart failure management incentive billing code by family physicians in Ontario, Canada: a retrospective cohort study
        • Reoperation cascade in postmastectomy breast reconstruction and its associated factors: results from a long‐term population‐based study
      • Reoperation cascade in postmastectomy breast reconstruction and its associated factors: results from a long‐term population‐based study

        Roberts A, Baxter NN, Sutradhar R, Lau C, Zhong T. J Surg Oncol. 2020; Sep 15 [Epub ahead of print]. DOI:

      • Constructing inverse probability weights for institutional comparisons in healthcare

        Tang T, Austin PC, Lawson KA, Finelli A, Saarela O. Stat Med. 2020; 39(23):3156-72. Epub 2020 Jun 24. DOI:

      • Medical immunosuppression and outcomes in cutaneous melanoma: a population-based cohort study

        Bogach J, Wright FC, Austin J, Cheng SY, Diong C, Sutradhar R, Baxter NN, Hong NJ. Ann Surg Oncol. 2020; Oct 16 [Epub ahead of print]. DOI:
      • Trends in mortality and cause-specific mortality among patients with psoriasis and psoriatic arthritis in Ontario, Canada

        Colaco K, Widdifield J, Luo J, Rosen CF, Alhusayen R, Paterson JM, Campbell W, Tu K, Bernatsky S, Gladman DD, Eder L. J Am Acad Dermatol. 2020; Oct 20 [Epub ahead of print]. DOI:

      • Has laparoscopic cholecystectomy changed patterns of practice and patient outcome in Ontario?

        Cohen MM, Young W, Theriault ME, Hernandez R. CMAJ. 1996; 154(4):491-500.

      • Age at diagnosis predicts local recurrence in women treated with breast-conserving surgery and postoperative radiation therapy for ductal carcinoma in situ: a population-based outcomes analysis

        Kong I, Narod SA, Taylor C, Paszat L, Saskin R, Nofech-Moses S, Thiruchelvam D, Hanna W, Pignol JP, Sengupta S, Elavathil L, Jani PA, Done SJ, Metcalfe S, Rakovitch E. Curr Oncol. 2014; 21(1):e96-104.

      • Patterns of care for radical prostatectomy in the United States from 2003 to 2005

        Hu JC, Hevelone ND, Ferreira MD, Lipsitz SR, Choueiri TK, Sanda MG, Earle CC. J Urol. 2008; 180(5):1969-74.

      • Relation between primary care physician supply and diabetes care and outcomes: a cross-sectional study

        Kiran T, Glazier RH, Campitelli MA, Calzavara A, Stukel TA. CMAJ Open. 2016; 4(1):E80-7.

      • Predictors of adjuvant treatment for pancreatic adenocarcinoma at the population level

        Kagedan DJ, Dixon ME, Raju RS, Li Q, Elmi M, Shin E, Liu N, El-Sedfy A, Paszat L, Kiss A, Earle CC, Mittmann N, Coburn NG. Curr Oncol. 2016; 23(5):334-42. Epub 2016 Oct 25.

      • A clinical decision instrument for 30-day death after an emergency department visit for atrial fibrillation: the Atrial Fibrillation in the Emergency Room (AFTER) study

        Atzema CL, Dorian P, Fang J, Tu JV, Lee DS, Chong AS, Austin PC. Ann Emerg Med. 2015; 66(6):658-68.e6. Epub 2015 Sep 18.

      • Influence of socioeconomic status on survival of hepatocellular carcinoma in the Ontario population; a population-based study, 1990–2009

        Jembere N, Campitelli MA, Sherman M, Feld JJ, Lou W. Peacock S, Yoshida E, Krahn MD, Earle C, Thein HH. PLoS One. 2012; 7(7):e40917. Epub 2012 Jul 13.

      • Antibiotic prescribing for nonbacterial acute upper respiratory infections in elderly persons

        Silverman M, Povitz M, Sontrop JM, Li L, Richard L, Cejic S, Shariff SZ. Ann Intern Med. 2017; 166(11):765-74. Epub 2017 May 9.

      • Health care costs associated with hepatocellular carcinoma: a population-based study

        Thein HH, Isaranuwatchai W, Campitelli MA, Feld JJ, Yoshida E, Sherman M, Hoch JS, Peacock S, Krahn MD, Earle CC. Hepatology. 2013; 58(4):1375-84. Epub 2013 Mar 15.

      • Predicting mortality among patients hospitalized for heart failure: derivation and validation of a clinical model

        Lee DS, Austin PC, Rouleau JL, Liu PP, Naimark D, Tu JV. JAMA. 2003; 290(19):2581-7.

      • The implications of regional variations in Medicare spending. Part 1: the content, quality, and accessibility of care

        Fisher ES, Wennberg DE, Stukel TA, Gottlieb DJ, Lucas FL, Pinder EL. Ann Intern Med. 2003; 138(4):273-87.

      • Relationship between adherence to evidence-based pharmacotherapy and long-term mortality after acute myocardial infarction

        Rasmussen JN, Chong A, Alter DA. JAMA. 2007; 297(2):177-86.

      • Association between quality domains and health care spending across physician networks

        Rahman F, Guan J, Glazier RH, Brown A, Bierman AS, Croxford R, Stukel TA. PLoS One. 2018; 13(4):e0195222. Epub 2018 Apr 3.

      • Predictors of obtaining follow-up care in the province of Ontario, Canada, following a new diagnosis of atrial fibrillation, heart failure, and hypertension in the emergency department

        Atzema CL, Yu B, Ivers NM, Rochon PA, Lee DS, Schull MJ, Austin PC. CJEM. 2018; 20(3):377-91. Epub 2017 Aug 14.

      • Refined estimates of local recurrence risks by DCIS score adjusting for clinicopathological features: a combined analysis of ECOG-ACRIN E5194 and Ontario DCIS cohort studies

        Rakovitch E, Gray R, Baehner FL, Sutradhar R, Crager M, Gu S, Nofech-Mozes S, Badve SS, Hanna W, Hughes LL, Wood WC, Davidson NE, Paszat L, Shak S, Sparano JA, Solin LJ. Breast Cancer Res Treat. 2018; 169(2):359-69. Epub 2018 Jan 1.

      • Access to palliative care by disease trajectory: a population-based cohort of Ontario decedents

        Seow H, O’Leary E, Perez R, Tanuseputro P. BMJ Open. 2018; 8(4):e021147. Epub 2018 Apr 5.

      • Multigene expression assay and benefit of radiotherapy after breast conservation in ductal carcinoma in situ

        Rakovitch E, Nofech-Mozes S, Hanna W, Sutradhar R, Baehner FL, Miller DP, Fong C, Gu S, Tuck A, Sengupta S, Elavathil L, Jani PA, Bonin M, Chang MC, Slodkowska E, Anderson JM, Cherbavaz DB, Shak S, Paszat L. J Natl Cancer Inst. 2017; 109(4):djw256. Epub 2016 Dec 27.

      • Cost-effectiveness analysis of treatment with non-curative or palliative intent for hepatocellular carcinoma in the real-world setting

        Thein HH, Qiao Y, Zaheen A, Jembere N, Sapisochin G, Chan KKW, Yoshida EM, Earle CC. PLoS One. 2017; 12(10):e0185198.

      • The impact of infection on population health: results of the Ontario burden of infectious diseases study

        Kwong JC, Ratnasingham S, Campitelli MA, Daneman N, Deeks SL, Manuel DG, Allen VG, Bayoumi AM, Fazil A, Fisman DN, Gershon AS, Gournis E, Heathcote EJ, Jamieson FB, Jha P, Khan KM, Majowicz SE, Mazzulli T, McGeer AJ, Muller MP, Raut A, Rea E, Remis RS, Shahin R, Wright AJ, Zagorski B, Crowcroft NS. PLoS One. 2012; 7(9):e44103. Epub 2012 Sep 4.

      • A clinical decision instrument to predict 30-day death and cardiovascular hospitalizations after an emergency department visit for atrial fibrillation: The Atrial Fibrillation in the Emergency Room, Part 2 (AFTER2) study

        Atzema CL, Dorian P, Fang J, Tu JV, Lee DS, Chong AS, Austin PC. Am Heart J. 2018; 203:85-92. Epub 2018 Jun 12.

      • Routine use of chest x-ray for low-risk patients undergoing a periodic health examination: a retrospective cohort study

        Bouck Z, Mecredy G, Ivers NM, Pendrith C, Fine B, Martin D, Glazier RH, Tepper J, Levinson W, Bhatia RS. CMAJ Open. 2018; 6(3):322-9. Epub 2018 Aug 13.