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Publication Results (211)

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  • Depression and use of health care services in patients with advanced cancer

    Lo C, Calzavara A, Kurdyak P, Barbera L, Shepherd F, Zimmermann C, Moore MJ, Rodin G. Can Fam Physician. 2013; 59(3):e168-74. Epub 2013 Mar 13.

  • Within-hospital readmission: an indicator of readmission after discharge from psychiatric hospitalization

    Vigod SN, Taylor VH, Fung K, Kurdyak PA. Can J Psychiatry. 2013; 58(8):476-81.

  • Short stay vs long stay postpartum psychiatric admissions: a population-based study

    Shlomi-Polachek I, Fung K, Meltzer-Brody S, Vigod SN. Arch Womens Ment Health. 2017; 20(4):505-13. Epub 2017 May 26.

  • December 2017

    • Supply of Ontario physicians providing comprehensive care lower than thought
    • Highlighting our data partnership with Immigration, Refugees and Citizenship Canada: A population-based study of postpartum mental health service use by immigrant women in Ontario, Canada
    • Highlighting our data partnership with Immigration, Refugees and Citizenship Canada: Impact of immigration status on cancer outcomes in Ontario, Canada
    ICES research video series
    • Laura Rosella on creating a new population risk tool for predicting high-cost users of health care
    ICES in the News
    • Cardiovascular and neuropsychiatric events following varenicline use for smoking cessation
    • Financial incentives did not increase psychiatric follow-up care
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    • The role of mental health and addiction among high-cost patients: a population-based study
    • Association of atrial fibrillation and oral anticoagulant use with perioperative outcomes after major noncardiac surgery
    • Melanoma patterns of care in Ontario: a call for a strategic alignment of multidisciplinary care
    • The relationship between cardiologist care and clinical outcomes in patients with new-onset atrial fibrillation
    • Population-based study to determine the health system costs of using the 21-gene assay
    • Perioperative chemotherapy for bladder cancer in the general population: Are practice patterns finally changing?
    • Does access to end-of-life homecare nursing differ by province and community size? 
    • Using newborn screening analytes to identify cases of neonatal sepsis
  • Health profiles and associated service use among adults with HIV and intellectual and developmental disabilities

    Lunsky Y, Durbin A, Brown HK, Bansal S, Heifetz M, Antoniou T. AIDS. 2017; 31(5):697-705. Epub 2016 Nov 28.

  • Sex differences in suicides among children and youth: the potential impact of help-seeking behaviour

    Rhodes AE, Khan S, Boyle MH, Tonmyr L, Wekerle C, Goodman D, Bethell J, Leslie B, Lu H, Manion I. Can J Psychiatry. 2013; 58(5):274-82.

  • Homelessness at discharge and its impact on psychiatric readmission and physician follow-up: a population-based cohort study

    Laliberté V, Stergiopoulos V, Jacob B, Kurdyak P. Epidemiol Psychiatr Sci. 2020; 29:e21. Epub 2019 Mar 7. DOI: 10.1017/S2045796019000052.

  • A cohort study examining emergency department visits and hospital admissions among people who use drugs in Ottawa, Canada

    Kendall CE, Boucher LM, Mark AE, Martin A, Marshall Z, Boyd R, Oickle P, Diliso N, Pineau D, Renaud B, Rose T, LeBlanc S, Tyndall M, Lee OM, Bayoumi AM. Harm Reduct J. 2017; 14:16.

  • Chronic physical conditions and risk for perinatal mental illness: a population-based retrospective cohort study

    Brown HK, Wilton AS, Ray JG, Dennis CL, Guttmann A, Vigod SN. PLoS Med. 2019; 16(8):e1002864. Epub 2019 Aug 26. DOI: 10.1371/journal.pmed.1002864.

  • December 2016

    • Rise in single father-led households, while single fathers less likely than single mothers to access mental health care despite similar need
    • $2.1 billion to treat Ontarians with psychotic disorders in single year, with costs growing with age
    • ICES research video series: Jack Tu on big data study on 20-year trends in atherosclerotic cardiovascular disease
    • Canadians with traumatic brain injury more likely to be federally incarcerated
    • Opioid prescribing declines following release of national guidelines for physicians, but rates of overdose-related hospital visits continue to climb
    • Health care for children with diabetes mellitus from low-income families in Ontario and California: a population-based cohort study
    • Risk of fractures after stroke: results from the Ontario Stroke Registry
    • Primary care physician volume and quality of diabetes care: a population-based cohort study
    • Peripheral nerve blockade for primary total knee arthroplasty: a population-based cohort study of outcomes and resource utilization
  • Anxiety-related visits to Ontario physicians following September 11, 2001

    Austin PC, Mamdani MM, Chan BT, Lin E. Can J Psychiatry. 2003; 48(6):416-9.

  • Cross-cultural comparisons of health status in Canada using the Health Utilities Index

    Kopec JA, Williams JI, To T, Austin PC. Ethn Health. 2001; 6(1):41-50.

  • May 2017

    • Emergency department as a first contact for mental health problems in children and youth
    • High rate of acute care use among people who use drugs
    • Low rate of cancer screening among transplant patients at heightened risk of cancer
    ICES in the News
    • Influence of environmental temperature on gestational diabetes risk
    • High rate of unnecessary antibiotic prescribing for seniors in Ontario
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    • Implementation and utilisation of telepsychiatry in Ontario: a population-based study
    • Population-based study to re-evaluate optimal lymph node yield in colonic cancer
    • Costs of cancer care in children and adolescents in Ontario, Canada
    • Trends in long-term mortality and morbidity in patients with no early complications after stroke and transient ischemic attack
    • Long-term outcomes of carotid endarterectomy versus stenting in a multicenter population-based Canadian study
    • Temporal trends in stroke incidence in South Asian, Chinese and white patients: a population based analysis
  • August 2017

    • Prolonged standing on the job more likely to lead to heart attack than prolonged sitting
    • Antipsychotics common for adults with intellectual and developmental disabilities
    ICES Research Video Series
    • Rinku Sutradhar on opioid use in long-term cancer survivors
    ICES in the News
    • 1 in 5 opioid-related deaths in Ontario involve alcohol
    • Toward Quality Mental Health Services in Canada: a comparison of performance indicators across five provinces
    • Behind the prescriptions: A snapshot of opioid use across all Ontarians
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    • 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
    • The variation of statin use among nursing home residents and physicians: a cross-sectional analysis
    • Cost-effectiveness analysis of potentially curative and combination treatments for hepatocellular carcinoma with person-level data in a Canadian setting
    • Lithium use, but not valproate use, is associated with a higher risk of chronic kidney disease in older adults with mental illness
    • A cross-sectional population-based study of breast cancer screening among women with HIV in Ontario, Canada
    • Association between operator specialty and outcomes after carotid artery revascularization
    • Costs of health care across primary care models in Ontario
  • June 2018

    Remembering Jack Tu
    • High-risk medications often re-prescribed after potentially serious drug effects
    • People with schizophrenia spectrum disorders account for more than 1 in 10 suicide deaths in Ontario
    • Women's risk of blood clots may be doubled in the six weeks following an abortion
      ICES in the News
      • Sex ratios at birth among second generation mothers of South Asian ethnicity in Ontario, Canada
      • Reporting and evaluating wait times for urgent hip fracture surgery in Ontario, Canada
      • Association of cataract surgery with traffic crashes
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      • The Mental Health of Adults with Developmental Disabilities in Ontario: Lessons from Administrative Health Data
      • Maternal and infant outcomes associated with lithium use in pregnancy
      • Family physician remuneration schemes and specialist referrals: quasi‐experimental evidence from Ontario, Canada
      • Serotonergic antidepressant use and morbidity and mortality among older adults with COPD
      • Evaluating the early impacts of delisting of high strength opioid on patterns of prescribing in Ontario
      • How are physicians delivering palliative care? A population-based retrospective cohort study describing the mix of generalist and specialist palliative care models in the last year of life
      • Hepatitis C testing, status and treatment among marginalized people who use drugs in an inner city setting: an observational cohort study
    • August 2018

      • Geographic Variation in Primary Care Need, Service Use and Providers in Ontario, 2015/16
      • Food insecurity status and mortality among adults in Ontario, Canada
      • Association between statin use and cardiovascular events after carotid artery revascularization
      • Rapid repeat pregnancy among women with intellectual and developmental disabilities: a population-based cohort study
        ICES in the News
        • Contributions of prescribed and non-prescribed opioids to opioid related deaths: a population based cohort study in Ontario, Canada
        • Pregabalin and the risk for opioid-related death: a nested case-control study
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        • Characteristics of nurse practitioner practice in family health teams in Ontario, Canada
        • Medical costs of delayed hip fracture surgery
        • Patterns of mortality among adults with intellectual and developmental disabilities in Ontario 
        • Narcolepsy and adjuvanted pandemic influenza A (H1N1) 2009 vaccines – multi-country assessment
        • Unmet need for mental health services among people screened but not admitted to an early psychosis intervention program
        • A matched case-control study to assess the association between non-steroidal anti-inflammatory drug use and thrombotic microangiopathy
      • September 2018

        • Initial cholinesterase inhibitor therapy dose and serious events in older women and men
        • Traumatic brain injury as an independent risk factor for problem gambling: a matched case-control study
          ICES in the News
          • Landscape of Prescription Stimulant Use
          • Emergency department use and enrollment in a medical home providing after-hours care
          • Identification and management of frailty in the primary care setting
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          • Are we making a difference in primary care for adults with intellectual and developmental disabilities?
          • Antipsychotic drug dispensing in older adults with parkinsonism
          • Low-dose trazodone, benzodiazepines and fall-related injuries in nursing homes: a matched-cohort study
          • Variation in the health outcomes associated with frailty among home care clients: relevance of caregiver distress and client sex
          • Trends in mental health service utilisation in immigrant youth in Ontario, Canada, 1996–2012: a population-based longitudinal cohort study
          • Sleep apnea increases the risk of new hospitalized atrial fibrillation: a historical cohort study
        • January 2019

          • Early initiation of palliative care is associated with reduced late-life acute-hospital use: a population-based retrospective cohort study
          • Cervical cancer screening access for women who experience imprisonment in Ontario, Canada
          • Effect of early physician follow-up on mortality and subsequent hospital admissions after emergency care for heart failure: a retrospective cohort study
          • Appropriate treatment receipt after breast-conserving surgery
          ICES in the News
          • Death and readmissions after hospital discharge during the December holiday period: cohort study
          • Incidence of cirrhosis in young birth cohorts in Canada from 1997 to 2016: a retrospective population-based study
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          • Evaluating the impact of prescribed versus nonprescribed benzodiazepine use in methadone maintenance therapy: results from a population-based retrospective cohort study
          • Overweight and obesity in preschool aged children and risk of mental health service utilization
          • Young stroke survivors with no early recurrence at high long‐term risk of adverse outcomes
          • Covariate-adjusted survival analyses in propensity-score matched samples: imputing potential time-to-event outcomes
          • A population-based study of the frequency and predictors of induced abortion among women with schizophrenia
        • Primary Care in Ontario: ICES Atlas

          Jaakkimainen L, Upshur REG, Klein-Geltink JE, Maaten S, Schultz SE, Leong A, Wang L, editors. November 2006

        • Atlas on the Primary Care of Adults with Developmental Disabilities in Ontario

          Lunsky Y, Klein-Geltink JE, Yates EA, editors. December 2013

        • Perinatal suicide in Ontario, Canada: a 15-year population-based study

          Grigoriadis S, Wilton AS, Kurdyak PA, Rhodes AE, VonderPorten EH, Levitt A, Cheung A, Vigod SN. CMAJ. 2017; 189(34):E1085-92. Epub 2017 Aug 28.

        • Postdischarge service utilisation and outcomes among Chinese and South Asian psychiatric inpatients in Ontario, Canada: a population-based cohort study

          Chiu M, Gatov E, Zaheer J, Lebenbaum M, Fu L, Newman A, Kurdyak P. BMJ Open. 2018; 8(1):e020156. Epub 2018 Jan 13.

        • Collective impact of chronic medical conditions and poverty on perinatal mental illness: population-based cohort study

          Faulkner MR, Barker LC, Vigod SN, Dennis CL, Brown HK. J Epidemiol Community Health. 2020; 74(2):158-63. Epub 2019 Nov 2. DOI:

        • Mood disorders in late life: a population-based analysis of prevalence, risk factors, and consequences in community-dwelling older adults in Ontario

          Strauss R, Kurdyak P, Glazier RH. Can J Psychiatry. 2020; May 21 [Epub ahead of print]. DOI:

        • Health service use among individuals with depression and psychological distress: a population-based cohort study in Ontario, Canada

          Chiu M, Saxena FE, Kurdyak P, Wilton AS, Vigod SN. Can J Psychiatry. 2020; May 27 [Epub ahead of print]. DOI:

        • Association between angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, and suicide

          Mamdani M, Gomes T, Greaves S, Manji S, Juurlink DN, Tadrous M, Kennedy SH, Antoniou T. JAMA Netw Open. 2019; 2(10):e1913304. Epub 2019 Oct 16. DOI: 10.1001/jamanetworkopen.2019.13304.

        • April 2017

          • Inflammatory bowel diseases on the rise in Canadian children
          • Low cancer screening rates among organ transplant patients in Ontario
          Research video
          • Baiju Shah on high thyroid cancer risk in Ontario immigrants from Southeast and East Asia
          ICES in the News
          • Two people a day die of opioid-related causes in Ontario
          • Many nursing home residents with dementia get medications of questionable benefit near the end of life
          • Where you live in Ontario could determine your risk of heart attack, stroke or dying of cardiovascular disease
          • No association between antidepressants during pregnancy and autism spectrum disorder in children
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          • Do people who experience incarceration age more quickly? Exploratory analyses using retrospective cohort data on mortality from Ontario, Canada
          • Mental health services claims and adult onset asthma in Ontario, Canada
          • Impact of a provincial quality-improvement program on primary health care in Ontario: a population-based controlled before-and-after study
          • The association of frailty with outcomes and resource use after emergency general surgery: a population-based cohort study
          • Level of need, divertibility, and outcomes of newly admitted nursing home residents
          • The Cardiovascular Health in Ambulatory Care Research Team performance indicators for the primary prevention of cardiovascular disease: a modified Delphi panel study
        • Infant hospitalization and maternal depression, poverty and single parenthood

          Guttmann A, Dick P, To T. Child Care Health Dev. 2004; 30(1):67-75.

        • The burden of waiting for hip and knee replacements in Ontario

          Williams JI, Llewellyn TH, Arshinoff R, Young N, Naylor CD. J Eval Clin Pract. 1997; 3(1):59-68.

        • Development of measures of the quality of emergency department care for children using a structured panel process

          Guttmann A, Razzaq A , Lindsay P, Zagorski B, Anderson GM. Pediatrics. 2006; 118(1):114-23.

        • First lifetime psychiatric admission in the postpartum period: a population-based comparison to women with prior psychiatric admission

          Polachek IS, Fung K, Vigod SN. Gen Hosp Psychiatry. 2016; 40:25-32. Epub 2016 Feb 4.

        • Pregnancy in women with intellectual and developmental disabilities

          Brown HK, Lunsky Y, Wilton AS, Cobigo V, Vigod SN. J Obstet Gynaecol Can. 2016; 38(1):9–16. Epub 2016 Feb 9.

        • Aftercare, emergency department visits, and readmission in adolescents

          Carlisle CE, Mamdani M, Schachar R, To T. J Am Acad Child Adolesc Psychiatry. 2012; 51(3):283-93. Epub 2012 Jan 27.

        • Predictors of psychiatric aftercare among formerly hospitalized adolescents

          Carlisle CE, Mamdani M, Schachar R, To T. Can J Psychiatry. 2012; 57(11):666-76.

        • 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
        • Temporal trends in general and age-specific fertility rates among women with schizophrenia (1996-2009): a population-based study in Ontario, Canada

          Vigod SN, Seeman MV, Ray JG, Anderson GM, Dennis CL, Grigoriadis S, Gruneir A, Kurdyak PA, Rochon PA. Schizophr Res. 2012; 139(1):169-75. Epub 2012 Jun 4.

        • Disparities in attendance at diabetes self-management education programs after diagnosis in Ontario, Canada: a cohort study

          Cauch-Dudek K, Victor JC, Sigmond M, Shah BR. BMC Public Health. 2013; 13:85.

        • High utilizers of emergency health services in a population-based cohort of homeless adults

          Chambers C, Chiu S, Katic M, Kiss A, Redelmeier DA, Levinson W, Hwang SW. Am J Public Health. 2013; 103(Suppl 2):S302-10. Epub 2013 Oct 22.

        • The direct healthcare costs associated with psychological distress and major depression: a population-based cohort study in Ontario, Canada

          Chiu M, Lebenbaum M, Cheng J, de Oliveira C, Kurdyak P. PLoS One. 2017; 12(9):e0184268. Epub 2017 Sep 5.

        • November 2017

          Call for abstracts: IPDLN 2018 Conference
          • Two-thirds of children with concussions not receiving medical follow-ups
          • People with developmental disabilities and mental illness have twice the risk of hospital readmissions
          • Inhaled corticosteroids do not increase risk of fracture in children with asthma
          • People with mental illness or addictions have higher health care needs and costs
          ICES in the News
          • Hip fracture surgery after more than 24 hours associated with increased risk of death and other complications
          • Direct medical costs of motorcycle crashes in Ontario
          • Flu vaccine prevents hospitalization in children
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          • Big data and population health: focusing on the health impacts of the social, physical, and economic environment
          • Indigenous health data and the path to healing
          • Derivation and external validation of prediction models for advanced chronic kidney disease following acute kidney injury
          • Ethnic differences in mental health and race-based data collection
          • Predicting psychiatric readmission: sex-specific models to predict 30-day readmission following acute psychiatric hospitalization
          • The medical care of male and female youth who die by suicide: a population-based case control study
          • Mortality in infants affected by preterm birth and severe small-for-gestational age birth weight
          • Increased coronary heart disease and stroke hospitalisations from ambient temperatures in Ontario
          • Changes in the dispensing of opioid medications in Canada following the introduction of a tamper-deterrent formulation of long-acting oxycodone
          • Variations in use of optimal medical therapy in patients with nonobstructive coronary artery disease