Publications by authors named "Kelly Anderson"

Objective: To examine factors associated with high intensity physician-based mental health care services in a population-based sample of children and youth in Ontario, Canada.

Methods: Data from the 2014 Ontario Child Health Study (OCHS) were linked at the person-level to longitudinal health administrative databases containing physician contacts in outpatient settings, emergency departments and hospitals. Our analytical sample (15.

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Unlabelled: Little is known regarding osteoporosis management between Traditional Medicare (TM) and Medicare Advantage (MA). MA beneficiaries had higher rates of osteoporosis testing and higher rates of osteoporosis drug treatment initiation rates. Following an osteoporotic fragility fracture, MA beneficiaries were more likely to be prescribed osteoporosis treatment.

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Importance: Interest in and use of hallucinogens has been increasing rapidly. While a frequently raised concern is that hallucinogens may be associated with an increased risk of psychosis, there are limited data on this association.

Objectives: To examine whether individuals with an emergency department (ED) visit involving hallucinogen use have an increased risk of developing a schizophrenia spectrum disorder (SSD).

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Background: This study explores how family members of individuals with mental illnesses address potential familial mental illness stigma. Previous studies have concentrated on self, social, and associative stigma and its impacts on families and persons with mental illnesses. Far less work has considered family members as perpetrators of mental illness stigma towards their loved ones with mental illnesses.

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Objectives: Intranasal (IN) midazolam is the most common anxiolytic for children in the emergency department (ED), but evidence of benefit is conflicting. We synthesized the evidence on IN midazolam for procedural distress in children undergoing ED painful procedures.

Methods: We included trials involving painful ED procedures in children 0-18 years involving IN midazolam.

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Article Synopsis
  • The study investigates the effects of step therapy on drug prescribing for macular degeneration in Medicare Advantage (MA) plans, specifically focusing on how it influences physician behavior and drug spending.
  • Humana implemented step therapy in 2019, favoring bevacizumab as the preferred drug, while Aetna and UnitedHealthcare did not use this approach, acting as a control group.
  • Analysis of 18,331 MA beneficiaries and over 21,000 treatment episodes from 2017-2019 will reveal changes in prescription patterns before and after step therapy implementation.
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Nearly all patients with type 1 diabetes and 20-30 percent of patients with type 2 diabetes use insulin to manage glycemic control. Approximately one-quarter of patients who use insulin report underuse because of cost. In response, more than twenty states have implemented monthly caps on insulin out-of-pocket spending, ranging from $25 to $100.

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Background: The association between chronic oral diseases and other major systemic health conditions, commonly referred to as the oral-systemic health connection, has been previously studied with several underlying common risk factors and pathways linking both groups of diseases. Psychosocial factors contribute to an increased susceptibility to chronic oral and non-oral diseases. The aim of this review is to summarize the current state of knowledge on the role of psychosocial stress in chronic oral and systemic diseases.

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Objective: To examine whether certain Medicare Advantage (MA) plan characteristics are associated with driving beneficiaries to providers that generate fewer avoidable hospital stays.

Data Sources: This paper primarily used 2018-2019 MA encounter data and traditional Medicare (TM) claims data for a nationally representative 20% sample of Medicare beneficiaries.

Study Design: For each plan design aspect-plan type, carrier, star rating, and network breadth-we estimated two adjusted Poisson regressions of avoidable hospital stays: one without clinician fixed effects and the other with.

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Background: Migration is a well-established risk factor for psychotic disorders, and migrant language has been proposed as a novel factor that may improve our understanding of this relationship. Our objective was to explore the association between indicators of linguistic distance and the risk of psychotic disorders among first-generation migrant groups.

Methods: Using linked health administrative data, we constructed a retrospective cohort of first-generation migrants to Ontario over a 20-year period (1992-2011).

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This paper presents results from the Smart Healthy Campus 2.0 study/smartphone app, developed and used to collect mental health-related lifestyle data from 86 Canadian undergraduates January-August 2021. Objectives of the study were to 1) address the absence of longitudinal mental health overview and lifestyle-related data from Canadian undergraduate students, and 2) to identify associations between these self-reported mental health overviews (questionnaires) and lifestyle-related measures (from smartphone digital measures).

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Persons with mental illnesses may experience stigma from their immediate family members in addition to other forms of stigma. Using semi-structured interviews, we investigated experiences of familial mental illness stigma among 15 people diagnosed with mental illnesses in a mid-sized city in Canada. We identified five themes that speak to participants' experiences of familial mental illness stigma and ways to reduce it.

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Disparities in primary care utilization among migrants with early psychosis may be related to lack of access to a regular primary care physician. This study aimed to investigate access to a regular primary care physician among first-generation migrants with early psychosis. People aged 14-35 years with first onset non-affective psychotic disorder in Ontario, Canada were identified in health administrative data (N = 39,440).

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Family physicians (FPs) play an important but underappreciated role in the pathways to care for people with early psychosis. We conducted a mixed-methods study to describe the knowledge, attitudes, preferences, and needs of FPs towards the recognition and management of early psychosis. We sent a cross-sectional postal survey to a random sample of FPs in Ontario, Canada, and conducted in-depth qualitative interviews with twenty.

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Background And Hypothesis: People with psychotic disorders have a higher risk of mortality following cancer diagnosis, compared to people without psychosis. The extent to which this disparity is influenced by differences in cancer-related treatment is currently unknown. We hypothesized that, following a cancer diagnosis, people with psychotic disorders were less likely to receive treatment and were at higher risk of death than those without psychosis.

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Background: The Mindfulness Ambassador Program (MAP) is a group-based, facilitated mindfulness-based intervention (MBI). We sought to determine the effectiveness of MAP on reducing negative psychotic symptoms and enhancing mindfulness skills among persons experiencing early psychosis.

Methods: We conducted a pragmatic randomized controlled trial (RCT) at three early psychosis intervention (EPI) programs in Ontario, Canada.

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Background: Medicare Advantage (MA) and Traditional Medicare face different financing structures and incentives and may implement different strategies to encourage biosimilar uptake. Strategies used by health insurers can influence biosimilar uptake, which can in turn promote savings to insurers and patients.

Objective: To compare filgrastim and infliximab biosimilar uptake between MA and Traditional Medicare from 2016 to 2019 and examine biosimilar uptake by different MA carriers and plan types (Health Maintenance Organization [HMO] or Preferred Provider Organization).

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Objective: To describe the provision of care for young people following first diagnosis of psychotic disorder.

Design: Retrospective cohort study using health administrative data.

Setting: Ontario.

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Background: Cannabis is a risk factor in the onset and persistence of psychotic disorders. There is concern that non-medical cannabis legalization in Canada may have population-level impacts on psychotic disorders. We sought to examine changes in health service use and incident cases of psychotic disorder following cannabis legalization, during a period of tight restrictions on retail stores and product types.

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Objective: To describe common methodological problems that arise in comparisons of Medicare Advantage (MA) and Traditional Medicare (TM) and within-MA studies and provide suggestions of how researchers can address these issues.

Study Setting: Published research evaluating Medicare coverage options in the United States.

Study Design: We considered key conceptual challenges and promising solutions that have been used thus far and suggest additional directions.

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Aim: Access to a primary care physician in early psychosis facilitates help-seeking and engagement with psychiatric treatment. We examined access to a regular primary care physician in people with early psychosis, compared to the general population, and explored factors associated with access.

Methods: Using linked health administrative data from Ontario (Canada), we identified people aged 14-35 years with a first diagnosis of nonaffective psychotic disorder (n = 39 449; 2005-2015).

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Objective: High upfront costs and long-term benefit uncertainties of gene therapies challenge Medicaid budgets, making value-based contracts a potential solution. However, value-based contract design is hindered by cost-offset uncertainty. The aim of this study is to determine actual cost-offsets for valoctocogene roxaparvovec (hemophilia A) and etranacogene dezaparvovec (hemophilia B) from Colorado Medicaid's perspective, defining payback periods and its uncertainty from the perspective of Colorado Medicaid.

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