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Publication Results (147)

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  • July 2022

    • Association of early physician follow-up with readmission among patients hospitalized for acute myocardial infarction, congestive heart failure, or chronic obstructive pulmonary disease
    • Patient–physician language concordance and quality and safety outcomes among frail home care recipients admitted to hospital in Ontario, Canada
    • Examination of trends in diabetes incidence among children during the COVID-19 pandemic in Ontario, Canada, from March 2020 to September 2021
    ICES in the News
    • Effectiveness of a fourth dose of covid-19 mRNA vaccine against the omicron variant among long term care residents in Ontario, Canada: test negative design study
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    • SARS-CoV-2 vaccination, ABO blood group and risk of COVID-19: population-based cohort study
    • The effect of high prevalence of missing data on estimation of the coefficients of a logistic regression model when using multiple imputation
    • Incidence of cardiovascular disease and mortality in childhood solid organ transplant recipients: a population-based study
    • Comparison of machine learning and the regression-based EHMRG model for predicting early mortality in acute heart failure
    • Bootstrap vs asymptotic variance estimation when using propensity score weighting with continuous and binary outcomes
    • SARS-CoV-2 testing, infection and outcomes among Ontario physicians: a descriptive population-based cohort study
  • Association between in-hospital supportive visits by primary care physicians and patient outcomes: a population-based cohort study

    Brener SS, Bronskill SE, Comrie R, Huang A, Bell CM. J Hosp Med. 2016; 11(6):418-24. Epub 2016 Feb 23.

  • Quality indicators of end-of-life care in patients with cancer: what rate is right?

    Barbera L, Seow H, Sutradhar R, Chu A, Burge F, Fassbender K, McGrail K, Lawson B, Liu Y, Pataky R, Potapov A. J Oncol Pract. 2015; 11(3):e279-87. Epub 2015 Apr 28.

  • Association between transitional care factors and hospital readmission after transcatheter aortic valve replacement: a retrospective observational cohort study

    Czarnecki A, Austin PC, Fremes SE, Tu JV, Wijeysundera HC, Ko DT. BMC Cardiovasc Disord. 2019; 19:23. Epub 2019 Jan 18.

  • Community-based specialist palliative care teams and health system costs at end of life: a retrospective matched cohort study

    Seow H, Salam-White L, Bainbridge D. CMAJ Open. 2019; 7(1):E73-80. Epub 2019 Feb 11.

  • Dying of amyotrophic lateral sclerosis: health care use and cost in the last year of life

    Zwicker J, Qureshi D, Talarico R, Bourque P, Scott M, Chin-Yee N, Tanuseputro P. Neurology. 2019; 93(23):e2083-93. Epub 2019 Oct 31. DOI:

  • Economic burden and healthcare resource use for thoracic aortic dissections and thoracic aortic aneurysms—a population‐based cost‐of‐illness analysis

    McClure RS, Brogly SB, Lajkosz K, McClintock C, Payne D, Smith HN, Johnson AP. J Am Heart Assoc. 2020; 9(11):e014981. Epub 2020 May 27. DOI:

  • Health care utilization in medically complex people living with HIV before and after admission to an HIV-specific community facility: a pre-post comparison study

    Stewart A, Antoniou T, Graves E, Plumptre L, Carusone SC. CMAJ Open. 2021; 9(2):E460-5. Epub 2021 May 6. DOI:

  • Health care expenditures among individuals with chronic psychotic disorders in Ontario: an analysis over time

    de Oliveira C, Iwajomo T, Kurdyak PA. Front Health Serv. 2022; 2:848072. Epub 2022 Mar 1. DOI:

  • Associations between continuity of primary and specialty physician care and use of hospital-based care among community-dwelling older adults with complex care needs

    Jones A, Bronskill SE, Seow H, Junek M, Feeny D, Costa AP. PLoS One. 2020; 15(6):e0234205. Epub 2020 Jun 19. DOI:

  • Increasing comorbidity and health services utilization in older adults with prior stroke

    Gruneir A, Griffith LE, Fisher K, Panjwani D, Gandhi S, Sheng L, Patterson C, Gafni A, Ploeg J, Markle-Reid M. Neurology. 2016; 87(20):2091-8.

  • Health care use, costs, and survival trajectory of home mechanical insufflation-exsufflation: health database case control study

    Rose L, Fisher T, Pizzuti R, Amin R, Croxford R, Dale CM, Goldstein R, Katz S, Leasa D, McKim D, Nonoyama M, Tandon A, Gershon A. Respir Care. 2022; 67(2):191-200. Epub 2021 Oct 20. DOI:

  • Canadian Veteran chronic disease prevalence and health services use in the five years following release: a matched retrospective cohort study using routinely collected data

    Mahar AL, St Cyr K, Enns JE, Aiken AB, Whitehead M, Cramm H, Kurdyak P. BMC Public Health. 2022; 22(1):1678. Epub 2022 Sep 5. DOI:

  • Comorbidity burden and health services use in community-living older adults with diabetes mellitus: a retrospective cohort study

    Gruneir A, Markle-Reid M, Fisher K, Reimer H, Ma X, Ploeg J. Can J Diabetes. 2016; 40(1):35-42. Epub 2016 Jan 6.

  • Comorbidity and its relationship with health service use and cost in community-living older adults with diabetes: a population-based study in Ontario, Canada

    Fisher K, Griffith L, Gruneir A, Panjwani D, Gandhi S, Sheng L, Gafni A, Patterson C, Markle-Reid M, Ploeg J. Diabetes Res Clin Pract. 2016; 122:113-23.

  • Does primary care model effect healthcare at the end of life? A population-based retrospective cohort study

    Howard M, Chalifoux M, Tanuseputro P. J Palliat Med. 2017; 20(4):344-51. Epub 2016 Nov 28.

  • Direct costs of adult traumatic spinal cord injury in Ontario

    Munce SE, Wodchis WP, Guilcher SJ, Couris CM, Verrier M, Fung K, Craven BC, Jaglal SB. Spinal Cord. 2013; 51(1):64-9. Epub 2012 Jul 17.

  • September 2017

    • Higher use of home care for Ontarians with intellectual and developmental disabilities
    • H1N1 infection increased risk of premature births for pregnant women with pre-existing medical conditions
    • The shrinking health advantage: unintentional injuries among children and youth from immigrant families
    • The risk of mycobacterial infections associated with inhaled corticosteroid use
    • Mental health services use trends in Canadian Veterans: a population-based retrospective cohort study in Ontario
    ICES in the News
    • Refugee children and youth at higher risk of unintentional injury compared with non-refugee immigrants
    • Ontarians with schizophrenia die eight years younger than those without
    • Half of young adults with autism have a psychiatric diagnosis
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    • The direct healthcare costs associated with psychological distress and major depression: a population-based cohort study in Ontario, Canada 
    • Low medical morbidity and mortality after acute courses of electroconvulsive therapy in a population-based sample
    • Performance of a postnatal metabolic gestational age algorithm: a retrospective validation study among ethnic subgroups in Canada
    • Performance of a postnatal metabolic gestational age algorithm: a retrospective validation study among ethnic subgroups in Canada
    • Has province-wide symptom screening changed opioid prescribing rates in older patients with cancer?
    • Cervical cancer screening among women from Muslim-majority countries in Ontario, Canada
    • Impact of injectable furosemide hospital shortage on congestive heart failure outcomes: a time series analysis
    • Estimating the prevalence of heterozygous familial hypercholesterolaemia: a systematic review and meta-analysis
  • The association of the Palliative Performance Scale and hazard of death in an ambulatory cancer population

    Seow H, Barbera L, Dudgeon D, Howell D, Husain A, Atzema C, Sussman J, Liu Y, Earle C, Sutradhar R. J Palliat Med. 2013; 16(2):156-62. Epub 2012 Dec 18.

  • A review of health surveillance in older adults with intellectual and developmental disabilities

    Ouellette-Kuntz H, Martin L, McKenzie K. Int Rev Res Dev Disabil. 2015; 48:151-94.

  • Exploration of pressure ulcer and related skin problems across the spectrum of health care settings in Ontario using administrative data

    Woo KY, Sears K. Almost J, Wilson R, Whitehead M, VanDenKerkhof EG. Int Wound J. 2017; 14(1):24-30. Epub 2015 Nov 20.

  • October 2018

    • Comparison of prescribing practices for older adults treated by female versus male physicians: a retrospective cohort study
    • Reducing repeat imaging in hepato-pancreatico-biliary surgical cancer care through shared diagnostic imaging repositories
    • Frequency and impact of prescription nonsteroidal anti-inflammatory drug use among patients with hypertension, heart failure, or chronic kidney disease
    • Access to health care and medical health services use for Canadian military families posted to Ontario: a retrospective cohort study
    ICES Research Video
    • Variation in the health outcomes associated with frailty among home care clients: relevance of caregiver distress and client sex
    ICES in the News
    • Use of the emergency department as a first point of contact for mental health care by immigrant youth in Canada: a population-based study
    • Influenza vaccine effectiveness in preventing influenza-associated hospitalizations during pregnancy: a multi-country retrospective test negative design study, 2010-2016
    • Physician characteristics associated with ordering 4 low-value screening tests in primary care
    • Emergency department volume and outcomes for patients after chest pain assessment
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    • Propensity-score matching with competing risks in survival analysis
    • Increased risk of traffic injury after a cerebrovascular event
    • Estimating the incidence of first-episode psychosis using population-based health administrative data to inform early psychosis intervention services
    • Association of cataract surgical outcomes with late surgeon career stages: a population-based cohort study
  • Demographic characteristics and healthcare use of centenarians: a population-based cohort study

    Rochon PA, Gruneir A, Wu W, Gill SS, Bronskill SE, Seitz DP, Bell CM, Fischer HD, Stephenson AL, Wang X, Gershon AS, Anderson GM. J Am Geriatr Soc. 2014; 62(1):86-93.

  • Direct health-care costs for children diagnosed with genetic diseases are significantly higher than for children with other chronic diseases

    Marshall DA, Benchimol EI, MacKenzie A, Duque DR, MacDonald KV, Hartley T, Howley H, Hamilton A, Gillespie M, Malam F, Boycott KM. Genet Med. 2019; 21(5):1049-57. Epub 2018 Sep 24.
  • Children’s end-of-life health care use and cost

    Widger K, Seow H, Rapoport A, Chalifoux M, Tanuseputro P. Pediatrics. 2017; 139(4):e20162956. Epub 2017 Mar 2.

  • 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
    • 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:

    • 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
    • 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
    • July 2021

      • Surgery and the subtype of inflammatory bowel disease impact the risk of venous thromboembolism after hospital discharge
      • Primary care provider and child characteristics associated with age of diagnosis of autism spectrum disorder: a population-based cohort study
      • Risk of serious medical events in patients with depression treated with electroconvulsive therapy: a propensity score-matched, retrospective cohort study
      ICES in the News
      • Development and validation of a predictive algorithm for risk of dementia in the community setting
      • Predicting death in home care users: derivation and validation of the Risk Evaluation for Support: Predictions for Elder-Life in the Community Tool (RESPECT)
      • Prevalence of winter migration to warmer destinations among Ontarians (“snowbirds”) and patterns of their use of health care services: a population-based analysis
      • COVID-19 in Ontario: Highlights for the week of July 4-10, 2021
      • Effectiveness of COVID-19 vaccines against variants of concern, Canada
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      • Measuring the impact of the COVID-19 pandemic on organized cancer screening and diagnostic follow-up care in Ontario, Canada: a provincial, population-based study
      • Effect of a health system payment and quality improvement programme for tonsillectomy in Ontario, Canada: an interrupted time series analysis
      • Depression-related weight change and incident diabetes in a community sample
      • Health services use by children identified as heterozygous hemoglobinopathy mutation carriers via newborn screening
      • Characteristics and outcomes of women developing heart failure after early stage breast cancer chemotherapy: a population-based matched cohort study
      • Childhood seizures after prenatal exposure to maternal influenza infection: a population-based cohort study from Norway, Australia and Canada
      • Specialist care in individuals with asthma who required hospitalization: a retrospective population-based study
      • NAFLD and alcohol-related liver disease will be responsible for almost all new diagnoses of cirrhosis in Canada by 2040
    • September 2021

      • Understanding COVID-19 risk in patients with immune mediated inflammatory diseases: a population-based analysis of SARS-CoV-2 testing
      • Outcomes and healthcare resource utilization in adult congenital heart disease patients with heart failure
      • Opioid use after outpatient elective general surgery: quantifying the burden of persistent use
      ICES in the News
      • Risk of cancer-specific death for patients diagnosed with neuroendocrine tumors: a population-based analysis
      • COVID-19 positivity rates, hospitalizations and mortality of adults with and without intellectual and developmental disabilities in Ontario, Canada
      • COVID-19 testing and percent positivity in Ontario
      • Comparison of 4-year health care expenditures associated with roux-en-y gastric bypass vs sleeve gastrectomy
      • Prediction of risk of prolonged post-concussion symptoms: Derivation and validation of the TRICORDRR (Toronto Rehabilitation Institute Concussion Outcome Determination and Rehab Recommendations) score
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      • Incidence of chronic immune-mediated inflammatory diseases after diagnosis with Kawasaki disease: a population-based cohort study
      • Association of surgical experience with risk of complication in total hip arthroplasty among patients with severe obesity
      • Incidence, predictors and patterns of care of patients with very severe hypertriglyceridemia in Ontario, Canada: a population-based cohort study
      • Renin-angiotensin-aldosterone system inhibitors and major cardiovascular events and acute kidney injury in patients with coronary artery disease
      • International comparison of spending and utilization at the end of life for hip fracture patients
      • Risk of acute kidney injury after hypertensive disorders of pregnancy: a population-based cohort study
      • Health services utilization prior to amyotrophic lateral sclerosis diagnosis: a province-wide study of individuals treated with riluzole in Ontario, Canada
      • The impact of language on emergency department visits, hospitalizations, and length of stay among home care recipients
    • October 2021

      • Did emergency department visits in infants and young children increase in the last decade? An Ontario, Canada study
      • Association of pre-existing comorbidities with mortality and disease severity among 167,500 individuals with COVID-19 in Canada: a population-based cohort study
      • Comparison of medication prescribing before and after the COVID-19 pandemic among nursing home residents in Ontario, Canada
      ICES in the News
      • Impact of the COVID-19 pandemic on skin cancer diagnosis: a population-based study
      • Incidence and mortality rates of keratinocyte carcinoma from 1998–2017: a population-based study of sex differences in Ontario, Canada
      • COVID-19 testing and percent positivity in Ontario
      • The impact of the COVID-19 pandemic on cardiac procedure waitlist mortality in Ontario, Canada
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      • Sex-specific differences in physical health and health services use among Canadian Veterans: a retrospective cohort study using healthcare administrative data
      • Factors associated with experiencing reassault in Ontario, Canada: a population-based analysis
      • Changes in exposure to ambient fine particulate matter after relocating and long term survival in Canada: quasi-experimental study
      • Risk factors associated with long term mortality and complications following thoracoabdominal aortic aneurysm repair
      • Superior outcomes with paediatric protocols in adolescents and young adults with aggressive B-cell non-Hodgkin lymphoma
      • Homebound status among older adult home care recipients in Ontario, Canada
      • Health care costs associated with hepatitis C virus infection in First Nations populations in Ontario: a retrospective matched cohort study
      • Health system-level evaluation of tele-mental health services among children and adolescents in Ontario, Canada
    • Who are the high-cost users? A method for person-centred attribution of health care spending

      Guilcher SJ, Bronskill SE, Guan J, Wodchis WP. PLoS One. 2016; 11(3):e0149179.

    • Long-term outcomes and healthcare utilization following critical illness – a population-based study

      Hill AD, Fowler RA, Pinto R, Herridge MS, Cuthbertson BH, Scales DC. Crit Care. 2016; 20(1):76.

    • Rehabilitation of older adults with dementia after hip fracture

      Seitz DP, Gill SS, Austin PC, Bell CM, Anderson GM, Gruneir A, Rochon PA. J Am Geriatr Soc. 2016; 64(1):47-54. Epub 2016 Jan 19.

    • Trajectories of stroke care in Ontario: which path to best care?

      Hall RE, Sondergaard D, Wodchis WP, Fang J, Mondal P, Bayley MT. Can J Neurol Sci. 2017; 44(3):261-6. Epub 2017 Feb 3.

    • Costs of health care across primary care models in Ontario

      Laberge M, Wodchis WP, Barnsley J, Laporte A. BMC Health Serv Res. 2017; 17:511. Epub 2017 Aug 1.

    • Relevance of frailty to mortality associated with the use of antipsychotics among community-residing older adults with impaired cognition

      Maxwell CJ, Campitelli MA, Hogan DB, Diong C, Austin PC, Amuah JE, Lapane K, Seitz DP, Gill SS, Gruneir A, Wodchis WP, Bronskil SE. Pharmacoepidemiol Drug Saf. 2018; 27(3):289-98. Epub 2018 Jan 10.

    • Palliative care delivery across health sectors: a population-level observational study

      Tanuseputro P, Budhwani S, Bai YQ, Wodchis WP. Palliat Med. 2017; 31(3):247-57. Epub 2016 Jun 16.

    • Association between household food insecurity and annual health care costs

      Tarasuk V, Cheng J, de Oliveira C, Dachner N, Gundersen C, Kurdyak P. CMAJ. 2015; 187(14):E429-36. Epub 2015 Aug 10.