Publications by authors named "Paul Takahashi"

Article Synopsis
  • The study aimed to identify differences in demographic characteristics, health behaviors, and beliefs about COVID-19 between individuals who have had the infection and those who haven't.
  • It involved a survey of 1,758 adults aged 50 and older in southeast Minnesota, collecting responses on 42 items related to COVID-19 from June 2021 to February 2022.
  • Results indicated that certain demographics and adherence to public health measures, like vaccinations, were linked to lower infection rates, emphasizing the need for ongoing public health initiatives based on these protective factors.
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Background: The incidence of respiratory syncytial virus (RSV)-acute respiratory infection (ARI) in community-dwelling adults after the Omicron variant of the COVID-19 pandemic is unknown. Our aim was to assess the incidence of RSV-ARI in adults aged 18 to 64 years over 2 consecutive RSV seasons (October-April 2022-2024) in 4 US states.

Methods: This community-based prospective cohort study comprised 7501 participants in Minnesota, Wisconsin, Florida, and Arizona.

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The population of older adults is rapidly growing worldwide. Because of the substantial shortage of geriatricians, all clinicians need basic fluency in older adult care. In our approach to evaluating an older adult in the clinic or at the bedside, we apply the "Geriatric 5Ms" framework to manage the patient's care.

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Background: Low-density lipoprotein cholesterol (LDL-C) is associated with atherosclerotic cardiovascular disease (ASCVD). Friedewald, Sampson, and Martin-Hopkins equations are used to calculate LDL-C. This study compares the impact of switching between these equations in a large geographically defined population.

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Background: Clinical risk scores are used to identify those at high risk of atherosclerotic cardiovascular disease (ASCVD). Despite preventative efforts, residual risk remains for many individuals. Very low-density lipoprotein cholesterol (VLDL-C) and lipid discordance could be contributors to the residual risk of ASCVD.

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Aims: We developed new machine learning (ML) models and externally validated existing statistical models [ischaemic stroke predictive risk score (iScore) and totalled health risks in vascular events (THRIVE) scores] for predicting the composite of recurrent stroke or all-cause mortality at 90 days and at 3 years after hospitalization for first acute ischaemic stroke (AIS).

Methods And Results: In adults hospitalized with AIS from January 2005 to November 2016, with follow-up until November 2019, we developed three ML models [random forest (RF), support vector machine (SVM), and extreme gradient boosting (XGBOOST)] and externally validated the iScore and THRIVE scores for predicting the composite outcomes after AIS hospitalization, using data from 721 patients and 90 potential predictor variables. At 90 days and 3 years, 11 and 34% of patients, respectively, reached the composite outcome.

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National or statewide estimates of excess deaths have limited value to understanding the impact of the COVID-19 pandemic regionally. We assessed excess deaths in a 9-county geographically defined population that had low rates of COVID-19 and widescale availability of testing early in the pandemic, well-annotated clinical data, and coverage by 2 medical examiner's offices. We compared mortality rates (MRs) per 100,000 person-years in 2020 and 2021 with those in the 2019 reference period and MR ratios (MRRs).

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Introduction/objectives: To describe health outcomes of older adults enrolled in the Mayo Clinic Care Transitions (MCCT) program before and during the COVID-19 pandemic compared to unenrolled patients.

Methods: We conducted a retrospective cohort study of adults (age >60 years) in the MCCT program compared to a usual care control group from January 1, 2019, to September 20, 2022. The MCCT program involved a home, telephonic, or telemedicine visit by an advanced care provider.

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Introduction: Using a digital process that leverages electronic health records (EHRs) can ease many of the challenges presented by the traditional enrollment process for clinical trials. We tested if automated batch enrollment using a technology-enabled subject recruitment system (TESRS) enhances recruitment while preserving representation of research subjects for the study population in our study setting.

Methods: An ongoing community-based prospective adult cohort study was used to randomize 600 subjects who were eligible by age and residential address to TESRS (n = 300) and standard mailing method (n = 300), respectively, for 3 months.

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Malignant skin tumors in the setting of chronic leg ulcers (CLUs) are often underdiagnosed which may contribute to treatment delay and poor outcomes. The aims of our study were to determine the incidence and clinical characteristics of skin cancers in leg ulcers in the Olmsted County population from 1995 to 2020. We used the Rochester Epidemiology Project (a collaboration between health care providers) infrastructure to describe this epidemiology, allowing "population-based" research.

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Background And Objectives: Prevention strategies for Alzheimer disease and Alzheimer disease-related dementias (AD/ADRDs) are urgently needed. Lipid variability, or fluctuations in blood lipid levels at different points in time, has not been examined extensively and may contribute to the risk of AD/ADRD. Lipid panels are a part of routine screening in clinical practice and routinely available in electronic health records (EHR).

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Objective: To compare the 1-year health care utilization and mortality in persons living with heart failure (HF) before and during the coronavirus disease 2019 (COVID-19) pandemic.

Patients And Methods: Residents of a 9-county area in southeastern Minnesota aged 18 years or older with a HF diagnosis on January 1, 2019; January 1, 2020; and January 1, 2021, were identified and followed up for 1-year for vital status, emergency department (ED) visits, and hospitalizations.

Results: We identified 5631 patients with HF (mean age, 76 years; 53% men) on January 1, 2019, 5996 patients (mean age, 76 years; 52% men) on January 1, 2020, and 6162 patients (mean age, 75 years; 54% men) on January 1, 2021.

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Background: We applied machine learning (ML) algorithms to generate a risk prediction tool [Collaboration for Risk Evaluation in COVID-19 (CORE-COVID-19)] for predicting the composite of 30-day endotracheal intubation, intravenous administration of vasopressors, or death after COVID-19 hospitalization and compared it with the existing risk scores.

Methods: This is a retrospective study of adults hospitalized with COVID-19 from March 2020 to February 2021. Patients, each with 92 variables, and one composite outcome underwent feature selection process to identify the most predictive variables.

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Article Synopsis
  • A study investigated the link between lipid level variability and cardiovascular disease (CVD) risk in a large cohort from electronic health records, focusing on individuals over 40 years without prior CVD.
  • The researchers analyzed data from 19,652 patients, finding that those with high variability in total cholesterol levels had a 20% increased risk of developing CVD compared to those with low variability.
  • The findings suggest that lipid variability could be a potential risk marker for CVD, but further research is needed to validate its clinical application.
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Objective: Independent living is desirable for many older adults. Although several factors such as physical and cognitive functions are important predictors for nursing home placement (NHP), it is also reported that socioeconomic status (SES) affects the risk of NHP. In this study, we aimed to examine whether an individual-level measure of SES is associated with the risk of NHP after accounting for neighborhood characteristics.

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Article Synopsis
  • This study investigates how common respiratory syncytial virus (RSV)-positive acute respiratory infections (ARI) were among older adults in southeast Minnesota before and during the COVID-19 pandemic, analyzing data from 2,325 participants over two RSV seasons (2019-2021).
  • Researchers found that before the pandemic, the incidence rate of RSV-positive ARI was 48.6 cases per 1,000 person-years, but during the pandemic, no cases were reported, indicating a significant drop in RSV infections during that time.
  • Additionally, the study measured the quality of life and physical function of participants after recovering from RSV-positive ARI, demonstrating the long-term impact of RSV infections on
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Context: Metformin is the first-line drug for treating diabetes but has a high failure rate.

Objective: To identify demographic and clinical factors available in the electronic health record (EHR) that predict metformin failure.

Methods: A cohort of patients with at least 1 abnormal diabetes screening test that initiated metformin was identified at 3 sites (Arizona, Mississippi, and Minnesota).

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Objective: To determine the relationship between characteristics of employment and future hospitalization in older adults.

Patients And Methods: We conducted a survey of adults aged 65 years or older participating in the Mayo Clinic Biobank. Using a frequency-matched, case-control design, we compared patients who were hospitalized within 5 years of biobank enrollment (cases) with those who were not hospitalized (controls).

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Objective: People living with dementia often have high care needs at the end-of-life. We compared care delivery in the last year of life for people living with dementia in the community (home or assisted living facilities [ALFs]) versus those in skilled nursing facilities (SNFs).

Methods: A retrospective study was performed of older adults with a dementia diagnosis who died in the community or SNFs from 2013 through 2018.

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Background: Uncertainty remains over the relationship between blood pressure (BP) variability (BPV), measured in hospital settings, and clinical outcomes following acute ischemic stroke (AIS). We examined the association between within-person systolic blood pressure (SBP) variability (SBPV) during hospitalization and readmission-free survival, all-cause readmission, or all-cause mortality 1 year after AIS.

Methods: In a cohort of 862 consecutive patients (age [mean ± SD] 75 ± 15 years, 55% women) with AIS (2005-2018, follow-up through 2019), we measured SBPV as quartiles of standard deviations (SD) and coefficient of variation (CV) from a median of 16 SBP readings obtained throughout hospitalization.

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Background And Aims: Influenza is a challenging infectious illness for older adults. It is not completely clear whether influenza is associated with frailty or functional decline. We sought to determine the association between incident influenza infection and frailty and prefrailty in community patients over 50 years of age.

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Article Synopsis
  • The Mayo-Baylor RIGHT 10K Study focused on using pharmacogenomics to improve drug prescriptions based on genetic information in a large population.
  • Researchers sequenced the DNA of over 10,000 participants to identify genetic variations affecting drug responses, and integrated these findings into electronic health records.
  • Results showed that 79% of participants had actionable genetic variants affecting their medication, highlighting the need for a proactive approach to personalized medicine in clinical care.
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Objective: To determine whether the length of a telehealth visit predicted the risk of hospital readmission at 30 days in skilled nursing facilities (SNFs) in southeastern Minnesota during the coronavirus disease 2019 pandemic.

Patients And Methods: This was a retrospective cohort study conducted in SNFs located in southeastern Minnesota from March 1, 2020 through July 15, 2020. The primary outcomes included hospitalization within 30 days of a video visit, and the secondary outcome was the number of provider video visits during the stay at an SNF.

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Objective: Hospitalized patients discharged to skilled nursing facilities (SNFs) for post-acute care are at high risk for adverse outcomes. Yet, absence of effective prognostic tools hinders optimal care planning and decision making. Our objective was to develop and validate a risk prediction model for 6-month all-cause death among hospitalized patients discharged to SNFs.

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Purpose Of Study: To determine the relationship between engagement with the novel register nurse care liaison (RNCL) and enrollment in care management compared with usual care in hospitalized patients.

Primary Practice Setting: Patients in the hospital from January 1, 2019, to September 30, 2019, who would be eligible for care management.

Methodology And Sample: This was a retrospective cohort study.

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