Gary F Teare

Gary F Teare
Alberta Health Services · Population Public and Indigenous Health

PhD MSc DVM

About

106
Publications
16,868
Reads
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3,169
Citations
Citations since 2016
29 Research Items
1798 Citations
2016201720182019202020212022050100150200250300
2016201720182019202020212022050100150200250300
2016201720182019202020212022050100150200250300
2016201720182019202020212022050100150200250300
Additional affiliations
June 2005 - present
University of Saskatchewan
October 2001 - December 2005
Toronto Rehabilitation Institute
Position
  • Researcher
January 1991 - December 2009
University of Toronto

Publications

Publications (106)
Article
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Background: The overall impact of physician prescribers on population-level adherence rates are unknown. We aimed to quantify the influence of general practitioner (GP) physician prescribers on the outcome of optimal statin medication adherence. Methods: We conducted a retrospective cohort study using health administrative databases from Saskatc...
Article
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Objectives Continuity of care (COC) is considered an important determinant of medication adherence based on measures such as the usual provider continuity index (UPCI) that are derived exclusively from physician visit claims. This study aimed to: a) determine if high UPCI values predict physicians who deliver different clinical services; and b) com...
Article
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Purpose: Age or sex concordance (same sex or same age range) may also be associated with medication adherence but was not fully investigated. We aim to quantify the impact of age and sex concordance on optimal adherence to statin medications. Patients and methods: A retrospective cohort study was conducted using population-based health administr...
Article
Objectives: The aim of this work was to determine whether: 1) blood glucose test strip use in the population is associated with hypoglycemia hospitalization rates, and 2) blood glucose test strip use among individuals is associated with a reduced risk of hypoglycemia hospitalization. Methods: Administrative databases from Saskatchewan, Canada, w...
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Background: The identification of contextual factors that modify associations between client frailty and their health and service use outcomes is essential for informed home health care and policy planning. Our objective was to examine variation in the associations between frailty and select 1-year health outcomes by caregiver distress and client...
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Objective This study explored the effect of clinical educators as facilitators of research use and how it may be modified by organisational context in the settings. Design Cross-sectional observational study. Setting A representative sample of 91 residential long-term care (LTC) facilities across Western Canada. Participants We used surveys to c...
Article
Background: In 2007, a drug benefit plan for Seniors (SDP) was launched in Saskatchewan, Canada. SDP capped out-of-pocket costs at $15 per prescription for individuals aged 65 and older. Objectives: To quantify the impact of the SDP on chronic medication adherence. Methods: A retrospective cohort study was conducted for participants aged 65 or o...
Article
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Background Hip fractures (HFs) represent an important cause of morbidity and mortality among adults in long-term care (LTC), but lack of detailed epidemiological data poses challenges to intervention planning. We aimed to determine the incidence of HFs among permanent LTC residents in Saskatchewan between 2008 and 2012, using linked, provincial adm...
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Objective: COPD is a high-cost disease and results in frequent contacts with the healthcare system. The study objective was to compare the accuracy of classification models with different covariates for classifying COPD patients into cost groups. Methods: Linked health administrative databases from Saskatchewan, Canada, were used to identify a c...
Article
Background and aims: Studies evaluating the impact of integrated models of care [IMC] for inflammatory bowel disease [IBD] on disease-related outcomes are needed. We compared the risk of IBD-related outcomes and prescription medication claims between patients exposed and non-exposed to an IMC. Methods: A retrospective population-based matched co...
Article
Occasionally, healthcare professionals approach analytical topics and courses with a blend of fear and loathing. They may fail to grasp the connection between particular principles and their application to actual process analysis and improvement. The run chart is a persuasively powerful quantitative tool. Healthcare teams could use this tool to bet...
Article
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Objective: Alcohol and illicit drug abuse are major health problems frequently leading to emergency department (ED) admissions. Repeat admissions in patients with mental health and addiction problems are a growing phenomenon and a major public health issue and health system cost in jurisdictions including Saskatchewan. The objective of this study w...
Article
Objectives: To describe trends in blood glucose test strip (TS) utilization and cost in Saskatchewan. Methods: A retrospective analysis of TS use between January 1, 1996, and December 31, 2013, was conducted using population-based health administrative databases in Saskatchewan. The prescription drug database was used to describe the annual numb...
Article
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Objectives We sought to identify the most expensive hospitalized individuals in the Canadian province of Saskatchewan in fiscal year 2012/13, and determine the primary cause of their high use of health services. Our aim was to identify health problems that can be prevented or better managed in a non-hospital health care setting. Comorbid conditions...
Article
Objective We were funded by Canadian Institutes of Health Research Strategy for Patient Oriented Research (CIHR-SPOR) to use administrative data to identify people with mental health and/or addiction (MHA) problems, and determine characteristics that lead to them becoming a superuser of health services. The aim of the CIHR-SPOR is to ensure that re...
Article
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Objective The objective of this research is to identify people with mental health and/or addiction (MHA) problems and determine characteristics that led to them becoming a superuser of health services (i.e., the most expensive 10% of all health service users). Approach In Saskatchewan, Canada, we used hospital and physician administrative data spa...
Conference Paper
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Background: Integrated models of care (IMC) for inflammatory bowel disease (IBD) have been implemented to improve the quality of care and disease management, and reduce adverse outcomes. Studies providing a systematic assessment of the impact of IMC for IBD on health care utilization have not previously been undertaken. This study compared health c...
Article
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Background: A patient's trajectory through the healthcare system affects resource use and outcomes. Data fields in population-based administrative health databases are potentially valuable resources for constructing care trajectories for entire populations, provided they can capture patient transitions between healthcare services. This study descr...
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Importance: The association between incretin-based drugs, such as dipeptidyl peptidase 4 (DPP-4) inhibitors and glucagon-like peptide 1 (GLP-1) agonists, and acute pancreatitis is controversial. Objective: To determine whether the use of incretin-based drugs, compared with the use of 2 or more other oral antidiabetic drugs, is associated with an...
Article
Objectives: To assess differences in utilization of maternal serum screening (MSS) and prenatal diagnostic testing between population subgroups, and to determine the impact on chromosomal anomaly birth rates. Methods: This population-based cohort study included all female residents from Saskatchewan, Canada who delivered a baby, experienced a fe...
Article
Background: Original studies published over the last decade regarding time trends in dementia report mixed results. The aims of the present study were to use linked administrative health data for the province of Saskatchewan for the period 2005/2006 to 2012/2013 to: (1) examine simultaneous temporal trends in annual age- and sex-specific dementia i...
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Background: Isotretinoin, a teratogen, is widely used to treat cystic acne. Although the risks of pregnancy during isotretinoin therapy are well recognized, there are doubts about the level of adherence with the pregnancy prevention program in Canada. Our objective was to evaluate the effectiveness of the Canadian pregnancy prevention program in 4...
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Healthcare pathways are important to measure because they are expected to affect outcomes. However, they are challenging to define because patients exhibit heterogeneity in their use of healthcare services. The objective of this study was to identify and describe healthcare pathways during episodes of chronic obstructive pulmonary disease (COPD) ex...
Article
Background Few details are available about the factors driving cost increases of biologic medications. Objectives To describe trends in utilization and cost of biologic agents using administrative databases in Saskatchewan, Canada. Methods Two analyses were conducted. First, aggregate utilization of biologics based on prescriptions dispensed was me...
Article
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Background Performance reporting in primary health care in Canada is challenging because of the dearth of concise and synthesized information. The paucity of information occurs, in part, because the majority of primary health care in Canada is delivered through a multitude of privately owned small businesses with no mechanism or incentives to provi...
Article
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Prescription medication use, which is common among long-term care facility (LTCF) residents, is routinely used to describe quality of care and predict health outcomes. Data sources that capture medication information, which include surveys, medical charts, administrative health databases, and clinical assessment records, may not collect concordant...
Article
Background: Determining the epidemiology of dementia among the population as a whole in specific jurisdictions - including the long-term care population-is essential to providing appropriate care. The objectives of this study were to use linked administrative databases in the province of Saskatchewan to determine the 12-month incidence and prevale...
Article
We aimed to describe trends in the prevalence and incidence of diabetes mellitus and also report the overall use of diabetes medications among patients newly admitted to a long-term care facility (LTCF). A retrospective cohort study was done using health administrative databases in Saskatchewan. Eligible patients were newly admitted to LTCF in Sask...
Article
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Background Releasing Time to Care: The Productive WardTM(RTC) is a method for conducting continuous quality improvement (QI). The Saskatchewan Ministry of Health mandated its implementation in Saskatchewan, Canada between 2008 and 2012. Subsequently, a research team was developed to evaluate its impact on the nursing unit environment. We sought to...
Article
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The author calls for a critical assessment of the impact of investments made in the measurement of quality and safety, and reflects on whether a reorientation of some of this investment is required to realize the healthcare quality and safety improvement the system seeks. This article also reflects on several Canadian initiatives that have been typ...
Article
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Objective To evaluate the incremental increase in new onset diabetes from higher potency statins compared with lower potency statins when used for secondary prevention. Design Eight population based cohort studies and a meta-analysis. Setting Six Canadian provinces and two international databases from the UK and US. Participants 136 966 patients ag...
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Objective Previous observational studies suggest that the use of proton pump inhibitors (PPIs) may increase the risk of hospitalisation for community-acquired pneumonia (HCAP). However, the potential presence of confounding and protopathic biases limits the conclusions that can be drawn from these studies. Our objective was, therefore, to examine t...
Article
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Background: Little is known about health or service use outcomes for residents of Canadian assisted living facilities. Our objectives were to estimate the incidence of admission to hospital over 1 year for residents of designated (i.e., publicly funded) assisted living (DAL) facilities in Alberta, to compare this rate with the rate among residents...
Article
Saskatchewan is the only Canadian province that lists ezetimibe for open formulary access even though it is a second-line agent for lowering cholesterol. A retrospective analysis of ezetimibe use in Saskatchewan between 2002 and 2011 was carried out using provincial health administrative databases. Overall use and costs of ezetimibe were described...
Article
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To demonstrate the benefit of defining operational management units in nursing homes and computing quality indicators on these units as well as on the whole facility. Calculation of adjusted Resident Assessment Instrument - Minimum Data Set 2.0 (RAI-MDS 2.0) quality indicators for: PRU05 (prevalence of residents with a stage 2-4 pressure ulcer), PA...
Article
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This study assessed the validity of the Resident Assessment Instrument Minimum Data Set (RAI-MDS) Version 2.0 for diagnoses of diabetes and comorbid conditions in residents of long-term care facilities (LTCFs). Hospital inpatient, outpatient physician billing, RAI-MDS, and population registry data for 1997 to 2011 from Saskatchewan, Canada were use...
Article
Accurate predictive models of costs for episodes of healthcare utilization associated with acute and chronic conditions can be used to develop non-fee-for-service provider remuneration systems. We examined the performance of eight predictive models for costs associated with episodes of care for chronic obstructive pulmonary disease (COPD) exacerbat...
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The performance of comorbidity measures for predicting mortality in chronic disease populations and using ICD-9 diagnosis codes in administrative health data has been investigated in several studies, but less is known about predictive performance with ICD-10 data and for other health outcomes. This study investigated predictive performance of five...
Article
RÉSUMÉ Les maisons de soins infirmiers sont devenues des environnements offrant des soins complexes, dont les habitants ont des besoins importants et la plupart souffrent de la démence liée a l’âge. S’appuyant sur les recherches de Hirdes et al. (2011), nous décrivons un profil des résidents dans un échantillon représentatif de 30 maisons de soins...
Article
Full-text available
Previous observational studies suggest that the use of proton pump inhibitors (PPIs) may increase the risk of hospitalisation for community-acquired pneumonia (HCAP). However, the potential presence of confounding and protopathic biases limits the conclusions that can be drawn from these studies. Our objective was, therefore, to examine the risk of...
Article
Full-text available
Objective To quantify an association between acute kidney injury and use of high potency statins versus low potency statins. Design Retrospective observational analysis of administrative databases, using nine population based cohort studies and meta-analysis. We performed as treated analyses in each database with a nested case-control design. Rate...
Article
To quantify an association between acute kidney injury and use of high potency statins versus low potency statins. Retrospective observational analysis of administrative databases, using nine population based cohort studies and meta-analysis. We performed as treated analyses in each database with a nested case-control design. Rate ratios for differ...
Article
Introduction The Resident Assessment Instrument Minimum Data Set (RAI-MDS) is a clinical tool intended to provide comparable and consistent information about the functional status and care needs of residents of long-term facilities (LTCFs). The RAI-MDS has been used in numerous studies about quality of care, including studies about the use of medic...
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Background Evidence informed decision making in health policy development and clinical practice depends on the availability of valid and reliable data. The introduction of interRAI assessment systems in many countries has provided valuable new information that can be used to support case mix based payment systems, quality monitoring, outcome measur...
Article
Background: In the province of Saskatchewan, Canada, stroke is the third leading cause of death as well as the major cause of adult disability. Once a person suffers a stroke or transient ischemic attack (TIA), they are at high risk for having a secondary stroke. Hypertension (elevated blood pressure) is the single most important modifiable risk f...
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Background This report is an introduction to a series of three research papers that describe the evolution of the approaches taken by the Translating Research in Elder Care (TREC) research team during its first four years to feed back the research findings to study participants. TREC is an observational multi-method health services research project...
Article
The performance of five comorbidity measures, including the Charlson and Elixhauser indices, was investigated for predicting mortality, hospitalization, and fracture outcomes in two osteoporosis cohorts defined from administrative databases. The optimal comorbidity measure depended on the outcome of interest, although overall the Elixhauser index p...
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Multiple comorbidity measures have been developed for risk-adjustment in studies using administrative data, but it is unclear which measure is optimal for specific outcomes and if the measures are equally valid in different populations. This research examined the predictive performance of five comorbidity measures in three population-based cohorts....
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To elicit priority rankings of indicators of quality of care among providers and decision-makers in continuing care in Alberta, Canada. We used modified nominal group technique to elicit priorities and criteria for prioritization among the quality indicators and resident/client assessment protocols developed by the interRAI consortium for use in lo...