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ICES Publications

At a Glance

At a Glance is a monthly e-newsletter highlighting key findings of recent ICES research. At a Glance was redesigned in April 2016 to better share our work visually through infographics, videos and news stories. Subscribe to At a Glance.

  • December 2020

    • Mortality among patients with frequent emergency department use for alcohol-related reasons in Ontario: a population-based cohort study
    • Association between ABO and Rh blood groups and SARS-CoV-2 infection or severe COVID-19 illness: a population-based cohort study
    • Diagnostic testing in long-term care and resident emergency department visits: a retrospective cohort study
    ICES in the News
    • COVID-19 in Ontario
    • Life expectancy and health-adjusted life expectancy in people with inflammatory bowel disease
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    • Association between neuraxial anaesthesia or general anaesthesia for lower limb revascularisation surgery in adults and clinical outcomes: population based comparative effectiveness study
    • Economic burden of epilepsy in children: a population-based matched cohort study in Canada
    • Combined associations of work and leisure time physical activity on incident diabetes risk
    • Mental health and addictions system performance in Ontario: an updated scorecard, 2009-2017
    • Higher-dose sitagliptin and the risk of congestive heart failure in older adults with CKD
    • Feminization of the rheumatology workforce: a longitudinal evaluation of patient volumes, practice sizes and physician remuneration
    • The LENT index predicts 30 day outcomes following hospitalization for heart failure
    • Sex-specific temporal trends in ambulatory heart failure incidence, mortality and hospitalisation in Ontario, Canada from 1994 to 2013: a population-based cohort study
  • November 2020

    • Life expectancy and health-adjusted life expectancy in people with inflammatory bowel disease
    • Utilisation and outcomes of allogeneic hematopoietic cell transplantation in Ontario, Canada, and New York State, USA: a population-based retrospective cohort study
    • Patient-centered time-at-home outcomes in older adults after surgical cancer treatment
    ICES in the News
    • COVID-19 in Ontario: Notable findings for the week of November 1-7, 2020
    • Prenatal hepatitis B screening, and hepatitis B burden among children, in Ontario: a descriptive study
    • Association between adherence to fractional flow reserve treatment thresholds and major adverse cardiac events in patients with coronary artery disease
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    • Incidental detection, imaging modalities and temporal trends of differentiated thyroid cancer in Ontario: a population-based retrospective cohort
    • The associations between direct and delayed critical care unit admission with mortality and readmissions among patients with heart failure
    • Increasing wait-time mortality for severe aortic stenosis: a population-level study of the transition in practice from surgical aortic valve replacement to transcatheter aortic valve replacement
    • Declining use of red blood cell transfusions for gastrointestinal cancer surgery: a population-based analysis
    • Regional health care services and rates of lower extremity amputation related to diabetes and peripheral artery disease: an ecological study
    • Use of cardiac noninvasive testing after emergency department discharge: association of hospital network testing intensity and outcomes in Ontario, Canada
    • Comorbidities before and after the diagnosis of rheumatoid arthritis: a matched longitudinal study
    • Coexistence of clinically significant obstructive sleep apnea with physician-diagnosed asthma or chronic obstructive pulmonary disease: a population study of prevalence and mortality
  • October 2020

    • Residential greenspace in childhood reduces risk of pediatric inflammatory bowel disease: a population-based cohort study
    • Estimated surge in hospital and intensive care admission because of the coronavirus disease 2019 pandemic in the Greater Toronto Area, Canada: a mathematical modelling study
    • Modest increase in fertility consultations in female adolescents and young adults with lymphoma: a population-based study
    ICES in the News
    • Firearm-related injuries and deaths in Ontario, Canada, 2002-2016: a population-based study
    • Morbidity and mortality associated with prescription cannabinoid drug use in COPD
    • Medication discontinuation in adults with chronic obstructive pulmonary disease discharged from hospital: a population-based cohort study
    • Association between exposure to general versus regional anesthesia and risk of dementia in older adults
    • COVID-19 in long-term care homes in Ontario and British Columbia
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    • Drug utilization in Ontario during the COVID-19 pandemic
    • Heterogeneity in testing, diagnosis and outcome in SARS-CoV-2 infection across outbreak settings in the Greater Toronto Area, Canada: an observational study
    • Levothyroxine dose and risk of atrial fibrillation: a nested case-control study
    • Are anticholinergic medications used for overactive bladder associated with new onset depression? A population-based matched cohort study
    • Deconstructing the rise in mental health–related ED visits among children and youth in Ontario, Canada
    • One size does not fit all: diabetes prevalence among immigrants of the South Asian diaspora
    • Medical immunosuppression and outcomes in cutaneous melanoma: a population-based cohort study
    • Multiple arterial coronary bypass grafting is associated with greater survival in women
  • 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
  • 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
  • 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
  • June 2020

    • Mood disorders in late life: a population-based analysis of prevalence, risk factors, and consequences in community-dwelling older adults in Ontario
    • Implementation of a physician incentive program for 18-month developmental screening in Ontario, Canada
    • Interventions supporting long term adherence and decreasing cardiovascular events after myocardial infarction (ISLAND): pragmatic randomised controlled trial
    ICES in the News
    • COVID-19 Laboratory Testing in Ontario: Patterns of Testing and Characteristics of Individuals Tested, as of April 30, 2020
    • Risk of hospitalization with hemorrhage among older adults taking clarithromycin vs azithromycin and direct oral anticoagulants
    • ICES’ new three-year strategic plan now available
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    • After-hours incentives and emergency department visits: evidence from Ontario
    • Identifying drugs with disease-modifying potential in Parkinson's disease using artificial intelligence and pharmacoepidemiology
    • In-hospital patient harm across linguistic groups: a retrospective cohort study of home care recipients
    • Healthcare costs and resource utilization associated with treatment of out-of-hospital cardiac arrest
    • Cancer staging in individuals with a severe psychiatric illness: a cross-sectional study using population-based cancer registry data
    • Treatment patterns and outcomes in adolescents and young adults with Hodgkin lymphoma in pediatric versus adult centers: an IMPACT cohort study
    • The impact of different antibiotic treatment regimens on mortality in Mycobacterium avium complex pulmonary disease (MAC-PD): a population-based cohort study
    • Association between the regional variation in premature mortality and immigration in Ontario, 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
  • April 2020

    • Geographic access to stroke care services in rural communities in Ontario, Canada
    • Association of immigrant and refugee status with risk factors for exposure to violent assault among youths and young adults in Canada
    • Physician-based availability of psychotherapy in Ontario: a population-based retrospective cohort study
      ICES in the News
      • Association between road traffic noise and incidence of diabetes mellitus and hypertension in Toronto, Canada: a population‐based cohort study
      • Increased risk of dementia among overactive bladder patients treated with an anticholinergic medication compared to a beta-3 agonist: a population-based cohort study
      • Canada and COVID-19: learning from SARS
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      • Increasing complexity of new nursing home residents in Ontario, Canada: a serial cross-sectional study
      • Intra-provincial variation in publicly funded mental health and addictions “services” use among Canadian Armed Forces families posted across Ontario
      • Benefits of high-volume medical oncology care for noncurable pancreatic adenocarcinoma: a population-based analysis
      • Assessing the impact of early identification of patients appropriate for palliative care on resource use and costs in the final month of life
      • Characterizing risk of type 2 diabetes in First Nations people living in First Nations communities in Ontario: a population-based analysis using cross-sectional survey data
      • Health system costs for cancer medications and radiation treatment in Ontario for the 4 most common cancers: a retrospective cohort study
      • Does physician compensation for declaration of involuntary status increase the likelihood of involuntary admission? A population-level cross-sectional linked administrative database study
      • Association of primary care involvement with death or hospitalizations for patients starting dialysis
    • 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
      • 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
        • January 2020

          Impact Stories
          • Surgical duration is associated with an increased risk of periprosthetic infection following total knee arthroplasty: a population-based retrospective cohort study
          • The risk of death within five years of first hospitalization in older adults
          • Determinants of direct discharge home from critical care units: a population-based cohort analysis
          • High-cost patients and preventable spending: a population-based study
          • Prescribing of oral anticoagulants in the emergency department and subsequent long-term use by older adults with atrial fibrillation
            ICES in the News
            • Neighbourhood-level marginalization and avoidable mortality in Ontario, Canada: a population-based study
            • Association of patient, prescriber, and region with the initiation of first prescription of biologic disease-modifying antirheumatic drug among older patients with rheumatoid arthritis and identical health insurance coverage
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            • Characterising risk of homicide in a population-based cohort
            • Association between hospital teaching status and outcomes after out-of-hospital cardiac arrest
            • The direct healthcare costs attributable to West Nile virus illness in Ontario, Canada: a population-based cohort study using laboratory and health administrative data
            • Resident trainees increase surgical time: a comparison of obstetric and gynaecologic procedures in academic versus community hospitals
            • Comparative effectiveness of fluoroquinolone antibiotic use in uncomplicated acute exacerbations of COPD: a multi-cohort study
            • Changes in opioid prescribing behaviors among family physicians who participated in a weekly tele-mentoring program
            • A new record linkage for assessing infant mortality rates in Ontario, Canada