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Publication Results (321)

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  • Introduction of surgical safety checklists in Ontario, Canada

    Urbach DR, Govindarajan A, Saskin R, Wilton AS, Baxter NN. N Engl J Med. 2014; 370(11):1029-38. Epub 2014 Mar 13.

  • Ambient temperature and the risk of renal colic: a population-based study of the impact of demographics and comorbidity

    Ordon M, Welk B, Li Q, Wang J, Lavigne E, Yagouti A, Copes R, Cakmak S, Chen H. J Endourol. 2016; 30(10):1138-43. Epub 2016 Sep 15.

  • Addressing Gaps in the Health Care Services Used by Adults with Developmental Disabilities in Ontario

    Lin E, Balogh RS, Durbin A, Holder L, Gupta N, Volpe T, Isaacs BJ, Weiss JA, Lunsky Y. February 2019.

  • Do incentive payments reward the wrong providers? A study of primary care reform in Ontario, Canada

    Glazier RH, Green ME, Frymire E, Kopp A, Hogg W, Premji K, Kiran T. Health Aff. 2019; 38(4):624–32. Epub 2019 Apr 1. DOI: 10.1377/hlthaff.2018.05272.

  • August 2019

    • High-performing physicians are more likely to participate in a research study: findings from a quality improvement study
    • Prevalence of inappropriateness of parenteral vitamin B12 administration in Ontario Canada
    • Association of mirabegron with the risk of arrhythmia in adult patients 66 years or older—a population-based cohort study
    • Antipsychotic initiation among adults with intellectual and developmental disabilities in Ontario: a population-based cohort study
    ICES in the News
    • Association of primary care continuity with outcomes following transition to adult care for adolescents with severe mental illness
    • A 15-year population-based investigation of sexual assault cases across the province of Ontario, Canada, 2002–2016
    • Health outcomes of young children born to mothers who received 2009 pandemic H1N1 influenza vaccination during pregnancy: retrospective cohort study
    • Rates of emergency department visits attributable to alcohol use in Ontario from 2003 to 2016: a retrospective population-level study
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    • End-of-life care in individuals with respiratory diseases: a population study comparing the dying experience between those with chronic obstructive pulmonary disease and lung cancer
    • Regional variation of premature mortality in Ontario, Canada: a spatial analysis
    • The time-varying effect of radiotherapy after breast-conserving surgery for DCIS
    • The impact of the long-term care homes act and public reporting on physical restraint and potentially inappropriate antipsychotic use in Ontario's long-term care homes
    • Can administrative data improve the performance of cancer clinical trial economic analyses?
    • Comparison of outcomes in elective endovascular aortic repair vs open surgical repair of abdominal aortic aneurysms
  • 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
  • Effects of sex and birth weight on non-specific health services use following whole-cell pertussis vaccination a self-controlled case series analysis

    Hawken S, Ducharme R, Fell DB, Oron AP, Wilson K. Hum Vaccin Immunother. 2019; 15(10):2399-404. Epub 2019 Mar 4. DOI:

  • Urgent outpatient care following mental health ED visits: a population-based study

    Barker LC, Sunderji N, Kurdyak P, Stergiopoulos V, Gonzalez A, Kopp A, Vigood SN. Psychiatr Serv. 2020; Feb 24 [Epub ehead of print]. 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
  • 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
  • The prevalence and health status of people with developmental disabilities in provincial prisons in Ontario, Canada: a retrospective cohort study

    Whittingham L, Durbin A, Lin E, Matheson FI, Volpe T, Dastoori P, Calzavara A, Lunsky Y, Kouyoumdjian F. J Appl Res Intellect Disabil. 2020; 33(6):1368-79. Epub 2020 June 11. DOI:

  • 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
  • Colonic stents for colorectal cancer are seldom used and mainly for palliation of obstruction: a population-based study

    Borowiec AM, Wang CSK, Yong E, Law C, Coburn N, Sutradhar R, Baxter N, Paszat L, Tinmouth J. Can J Gastroenterol Hepatol. 2016; 2016:1945172. Epub 2016 Mar 29.

  • June 2021

    • Postpartum mental illness during the COVID-19 pandemic: a population-based, repeated cross-sectional study
    • Association of socioeconomic status with medical assistance in dying: a case-control analysis
    • Inequities in access to primary care among opioid recipients in Ontario, Canada: a population-based cohort study
    • Development and validation of a machine learning model using administrative health data to predict onset of type 2 diabetes
    ICES in the News
    • A population-based analysis of the impact of the COVID-19 pandemic on common abdominal and gynecological emergency department visits
    • COVID-19 in Ontario: Highlights for the week of June 6–12, 2021
    • Adherence at 2 years with distribution of essential medicines at no charge: the CLEAN Meds randomized clinical trial
    You may also be interested in...
    • Stroke care and case fatality in people with and without schizophrenia: a retrospective cohort study
    • Childhood food insecurity and incident asthma: a population-based cohort study of children in Ontario, Canada
    • Lung cancer inequalities in stage of diagnosis in Ontario, Canada
    • Patterns of cardiovascular risk factors in the years before pregnancy in nulliparous women with and without preterm birth and small-for-gestational-age delivery
    • Association between end-of-life cancer care and immigrant status: a retrospective cohort study in Ontario, Canada
    • Primary care-based smoking cessation treatment and subsequent healthcare service utilisation: a matched cohort study of smokers using linked administrative healthcare data
    • Morbidity and mortality reduction associated with polysomnography testing in idiopathic pulmonary fibrosis: a population-based cohort study
    • Glycemic control in transition-aged versus early adults with type 1 diabetes and the effect of a government-funded insulin pump program
  • Diabetic ketoacidosis and mortality in people with type 1 diabetes and eating disorders

    Gibbings NK, Kurdyak PA, Colton PA, Shah BR. Diabetes Care. 2021; 44(8):1783-7. Epub 2021 Jun 25. DOI:

  • 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
    You may also be interested in...
    • 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
  • Rurality as a risk factor for attempted suicide and death by suicide in Ontario, Canada

    Barry R, Rehm J, de Oliveira C, Gozdyra P, Chen S, Kurdyak P. Can J Psychiatry. 2021; Nov 18 [Epub ahead of print]. DOI:

  • December 2021

    • Acute mental health service use following onset of the COVID-19 pandemic in Ontario, Canada: a trend analysis
    • Abortion safety and use with normally prescribed mifepristone in Canada
    • Association of bilateral salpingo-oophorectomy with all cause and cause specific mortality: population based cohort study
    ICES in the News
    • Characteristics of transgender individuals with emergency department visits and hospitalizations for mental health
    • COVID-19 testing and vaccination coverage in Ontario
    You may also be interested in...
    • Primary care bonus payments and patient-reported access in urban Ontario: a cross-sectional study
    • Appropriateness of outpatient antibiotic use in seniors across two Canadian provinces
    • Characteristics and resource utilization of high-cost users in the intensive care unit: a population-based cohort study
    • Fracture profiles of a 4-year cohort of 266,324 first incident upper extremity fractures from population health data in Ontario
    • Incidence of inflammatory bowel disease in South Asian and Chinese people: a population-based cohort study from Ontario, Canada
    • Risks of late mortality and morbidity among survivors of childhood acute leukemia with Down syndrome: a population-based cohort study
    • A population-based retrospective cohort study analyzing contemporary trends in the surgical management of urinary stone disease in adults
    • Effect of electronic medication reconciliation at the time of hospital discharge on inappropriate medication use in the community: an interrupted time-series analysis
  • The 2011 and 2016 iterations of the Ontario Marginalization Index: updates, consistency and a cross-sectional study of health outcome associations

    van Ingen T, Matheson FI. Can J Public Health. 2022; 113(2):260-71. Epub 2021 Aug 25. DOI:

  • Intellectual/developmental disabilities among people incarcerated in federal correctional facilities in Ontario, Canada: examining prevalence, health and correctional characteristics

    Matheson FI, Dastoori P, Whittingham L, Calzavara A, Keown LA, Durbin A, Kouyoumdjian FG, Lin E, Volpe T, Lunsky Y. J Appl Res Intellect Disabil. 2022; 35(3):900-9. Epub 2022 Mar 26. DOI:

  • Trends and factors associated with suicide deaths in older adults in Ontario Canada

    Novilla-Surette EMP, Shariff SZ, Le B, Booth RG. Can Geriatr J. 2022; 25(2):134-61. Epub 2022 Jun 1. DOI:

  • August 2022

    • Increased demand for paramedic transports to the emergency department in Ontario, Canada: a population-level descriptive study from 2010 to 2019
    • Neonatal outcomes of mothers with a disability
    • Primary care physician use and frequency of visits among physicians in Ontario, Canada
    ICES in the News
    • Uncovering SARS-COV-2 vaccine uptake and COVID-19 impacts among First Nations, Inuit and Métis Peoples living in Toronto and London, Ontario
    • Impact of Ontario's Harmonized Heat Warning and Information System on emergency department visits for heat-related illness in Ontario, Canada: a population-based time series analysis
    You may also be interested in...
    • Prescription pathways from initial medication use to triple therapy in older COPD patients: a real-world population study
    • Physician home visits in Ontario: a cross-sectional analysis of patient characteristics and postvisit use of health care services
    • Quality of end-of-life care in multiple myeloma: a 13-year analysis of a population-based cohort in Ontario, Canada
    • Long-term health care utilization and associated costs after dialysis-treated acute kidney injury in children
    • Primary care physician use and frequency of visit among physicians in Ontario, Canada
    • Time to surgery for patients with esophageal cancer undergoing trimodal therapy in Ontario: a population-based cross-sectional study
    • Community trial evaluating the integration of Indigenous healing practices and a harm reduction approach with principles of seeking safety in an Indigenous residential treatment program in northern Ontario
  • September 2022

    • Prepregnancy emergency department use and risks of severe maternal and neonatal morbidity in Canada
    • Changes in emergency department visits for cannabis hyperemesis syndrome following recreational cannabis legalization and subsequent commercialization in Ontario, Canada
    • Family physicians stopping practice during the COVID-19 pandemic in Ontario, Canada
    ICES in the News
    • Estimated effectiveness of COVID-19 vaccines against Omicron or Delta symptomatic infection and severe outcomes
    • Clinical outcomes and health care costs among people entering a safer opioid supply program in Ontario
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    • Initial healthcare costs for COVID-19 in British Columbia and Ontario, Canada: an inter-provincial population-based cohort study
    • Mode of conception and risk of spontaneous vs. provider-initiated preterm birth: population-based cohort study
    • Trends in quality indicators of end-of-life care for women with gynecologic malignancies in Ontario, Canada
    • Rates, predictive factors, and adverse outcomes of fusion surgery for lumbar degenerative disorders in Ontario, Canada between 2006 and 2015: a retrospective cohort study
    • Cognitive decline in long-term care residents before and during the COVID-19 pandemic in Ontario, Canada
    • Regional collaborative home-based palliative care and health care outcomes among adults with heart failure
    • Incidence and mortality of emergency general surgery conditions among solid-organ transplant recipients in Ontario, Canada: a population-based analysis
  • Determinants of hospital use and physician services among adults with a history of homelessness

    Wiens K, Rosella LC, Kurdyak P, Chen S, Aubry T, Stergiopoulos V, Hwang SW. Health Serv Insights. 2022; Oct 26 [Epub ahead of print]. DOI:

  • Quality of end-of-life care in multiple myeloma: a 13-year analysis of a population-based cohort in Ontario, Canada

    Mohyuddin GR, Sinnarajah A, Gayowsky A, Chan KKW, Seow H, Mian H. Br J Haematol. 2022; 199(5):688-95. Epub 2022 Aug 10. DOI:

  • Health conditions and service use of autistic women and men: a retrospective population-based case-control study

    Tint A, Chung H, Lai MC, Balogh R, Lin E, Durbin A, Lunsky Y. Autism. 2023; Jan 1 [Epub ahead of print]. DOI:

  • Endometriosis and cardiovascular disease: a population-based cohort study

    Blom JN, Velez MP, McClintock C, Shellenberger J, Pudwell J, Brogly SB, Bougie O. CMAJ Open. 2023; 10(4):E227-36. Epub 2023 Mar 7. DOI:

  • Risk of incarceration of inguinal hernia among infants and young children awaiting elective surgery

    Zamakhshary M, To T, Guan J, Langer JC. CMAJ. 2008; 179(10):1001-5.

  • 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.

  • The health system impact of false positive newborn screening results for medium-chain acyl-CoA dehydrogenase deficiency: a cohort study

    Karaceper MD, Chakraborty P, Coyle D, Wilson K, Kronick JB, Hawken S, Davies C, Brownell M, Dodds L, Feigenbaum A, Fell DB, Grosse SD, Guttmann A, Laberge AM, Mhanni A, Miller FA, Mitchell JJ, Nakhla M, Prasad C, Rockman-Greenberg C, Sparkes R, Wilson BJ, Potter BK; Canadian Inherited Metabolic Diseases Research Network. Orphanet J Rare Dis. 2016; 11:12.

  • Measuring change in health status of older adults at the population level: the transition probability model

    Moineddin R, Nie JX, Wang L, Tracy CS, Upshur RE. BMC Health Serv Res. 2010; 10:306.

  • Comparison of inhaled long-acting beta-agonist and anticholinergic effectiveness in older patients with chronic obstructive pulmonary disease: a cohort study

    Gershon A, Croxford R, To T, Stanbrook MB, Upshur R, Sanchez-Romeu P, Stukel T. Ann Intern Med. 2011; 154(9):583-92.

  • Specialized survivor clinic attendance is associated with decreased rates of emergency department visits in adult survivors of childhood cancer

    Sutradhar R, Agha M, Pole J, Greenberg M, Guttmann A, Hodgson D, Nathan P. Cancer. 2015; 121(24):4389-97. Epub 2015 Sep 25.

  • Incidence, outcomes, and health services burden of very early onset inflammatory bowel disease

    Benchimol EI, Mack DR, Nguyen GC, Snapper SB, Li W, Mojaverian N, Quach P, Muise AM. Gastroenterology. 2014; 147(4):803–813.e7. Epub 2014 Jun 18.

  • Migraine headache and risk of self-harm and suicide: a population-based study in Ontario, Canada

    Colman I, Kingsbury M, Sareen J, Bolton J, van Walraven C. Headache. 2016; 56(1):132-40. Epub 2015 Oct 31.

  • 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.

  • Infant respiratory outcomes associated with prenatal exposure to maternal 2009 A/H1N1 influenza vaccination

    Fell DB, Wilson K, Ducharme R, Hawken S, Sprague AE, Kwong JC, Smith G, Wen SW, Walker MC. PLoS One. 2016; 11(8):e0160342.

  • Economic analysis of Heart and Stroke Foundation of Ontario’s Hypertension Management Initiative

    de Oliveira C, Wijeysundera HC, Tobe SW, Lum-Kwong MM, Von Sychowski S, Wang X, Tu JV, Krahn MD. Clinicoecon Outcomes Res. 2012; 4:323-36. Epub 2012 Nov 13.

  • Association between physician follow-up and outcomes of care after chest pain assessment in high-risk patients

    Czarnecki A, Chong A, Lee DS, Schull MJ, Tu JV, Lau C, Farkouh ME, Ko DT. Circulation. 2013; 127(13):1386-94.