Publications by authors named "Jeffrey A Bakal"

Objectives: This study aimed to evaluate sociodemographic and clinical characteristics and perinatal outcomes of Métis pregnancies in Alberta, Canada.

Methods: This was a retrospective population-based cohort study of all singleton pregnancies resulting in live births (≥22 weeks gestation) in Alberta (2006-2016). Métis births were identified through linkage of the Otipemisiwak Métis Government of the Métis Nation within Alberta Identification Registry with Alberta's population and perinatal registries, and compared with non-Métis pregnancies.

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Background: Sex disparities in healthcare access were exacerbated during the coronavirus disease 2019 (COVID-19) pandemic. For respiratory conditions such as asthma, where females have poorer disease outcomes, it is unclear whether the pandemic further worsened this sex disparity. Thus, the objective of this study was to compare the impact of the pandemic on healthcare utilisation, exacerbations and mortality rates in males and females with asthma.

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Importance: The effect of antihypertensive administration time on major adverse cardiovascular events is unclear, and has never been studied in frail older adults, for whom risks and benefits may differ from the general population.

Objective: To determine, in frail seniors, the effect of bedtime vs morning administration of antihypertensive medications on major cardiovascular events and death, as well as on potentially ischemic or hypotensive adverse events.

Design, Setting, And Participants: This multicenter, open-label, pragmatic randomized clinical trial recruited from 13 continuing care facilities in Canada (17 wards; 14 long-term care and 3 supportive-living wards) from May 25, 2020, to September 18, 2023, with follow-up until February 29, 2024.

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Importance: Whether administration of blood pressure medications at bedtime instead of in the morning reduces cardiovascular risk is unknown, as findings from large clinical trials have not been consistent. There is also concern that bedtime antihypertensive use could induce glaucoma-related visual loss or other hypotensive/ischemic adverse effects.

Objective: To determine the effect of bedtime vs morning administration of antihypertensive medications on major cardiovascular events and death.

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Background And Aims: Older (≥ 50 years) persons living with human immunodeficiency virus (PLWH) comprise the majority of individuals receiving HIV care in high-income countries. PLWH experience the challenges of aging at earlier ages and accelerated rates, compared to people without HIV. Older PLWH who may benefit from more support may hesitate due to fear of stigma, discrimination, or past experiences.

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Industrialization adversely affects the gut microbiome and predisposes individuals to chronic non-communicable diseases. We tested a microbiome restoration strategy comprising a diet that recapitulated key characteristics of non-industrialized dietary patterns (restore diet) and a bacterium rarely found in industrialized microbiomes (Limosilactobacillus reuteri) in a randomized controlled feeding trial in healthy Canadian adults. The restore diet, despite reducing gut microbiome diversity, enhanced the persistence of L.

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Article Synopsis
  • The study aimed to investigate the relationships between diabetes, mental health conditions, asthma, and their impact on gestational hypertension (GH) and preeclampsia (PE) in pregnant women from Alberta, Canada.
  • A total of 18,381 women were analyzed, revealing a direct link between anxiety during pregnancy and GH, as well as the influence of pre-pregnancy diabetes and asthma on PE.
  • The results emphasize the importance of considering mental health and chronic conditions like diabetes and asthma when assessing risks for GH and PE during pregnancy.
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Introduction: Although antihypertensive medication use is common among frail older adults, observational studies in this population suggest blood pressure (BP) lowering may convey limited benefit and perhaps even harm. This protocol describes an antihypertensive deprescribing trial in frail older adults powered for mortality and morbidity outcomes.

Methods And Analysis: Prospective, parallel, randomised, open-label pragmatic trial.

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Background: In VICTORIA (Vericiguat Global Study in Subjects with Heart Failure with Reduced Ejection Fraction), participants with heart failure (HF) and reduced ejection fraction, vericiguat decreased the primary composite outcome (time to first HF hospitalization [HFH] or cardiovascular death [CVD]) (897 events) compared with placebo (972 events) (hazard ratio, 0.90; 95% confidence interval [CI], 0.82-0.

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Background: Prior studies of COVID-19 cardiovascular sequelae include diagnoses made within 4 weeks, but the World Health Organization definition for "postacute phase" is >3 months.

Objectives: The purpose of this study was to determine which cardiovascular diagnoses in the postacute phase of COVID-19 are associated with SARS-CoV-2 infection.

Methods: Retrospective cohort study of all adults in Alberta who had a positive SARS-CoV-2 reverse transcription polymerase chain reaction test between March 1, 2020 and June 30, 2021, matched (by age, sex, Charlson Comorbidity score, and test date) with controls who had a negative reverse transcription polymerase chain reaction test.

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Existing work suggests that patients with chronic obstructive pulmonary disease (pwCOPD) presented less frequently to the emergency department and were less likely to be hospitalized during the coronavirus disease (COVID-19) pandemic, but it is unclear if this was due to improved health and disease management or to increased barriers and/or avoidance of health care. The objective of this study was to determine the impact of the pandemic on inpatient and outpatient healthcare use, disease incidence, and mortality rates in pwCOPD. A retrospective population-based analysis using linked administrative datasets from Alberta, Canada 18 months before and after March 12, 2020 was conducted to measure hospitalization, emergency department and outpatient visits, and COPD outpatient exacerbations during these time periods.

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Objectives: Assisted living (AL) is a significant and growing congregate care option for vulnerable older adults designed to reduce the use of nursing homes (NHs). However, work on excess mortality in congregate care during the COVID-19 pandemic has primarily focused on NHs with only a few US studies examining AL. The objective of this study was to assess excess mortality among AL and NH residents with and without dementia or significant cognitive impairment in Alberta, Canada, during the first 2 years of the COVID-19 pandemic, relative to the 3 years before.

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Article Synopsis
  • Understanding the frequency and outcomes of neurological disorders linked to COVID-19 is crucial for assessing risks and recognizing new neurological issues.
  • A case-control study analyzed health data from March 2020 to June 2021, comparing 177,892 individuals infected with SARS-CoV-2 and 177,800 uninfected individuals, focusing on mortality rates and neurological complications.
  • Results showed that individuals with pre-existing neurological conditions faced significantly higher mortality rates and were at increased risk for new neurological issues both during the acute phase and up to nine months after infection, including encephalopathy, dementia, and brain fog.
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Introduction: Most post-injury traumatic spinal cord injury (TSCI) care occurs in the inpatient rehabilitation setting. The inpatient rehabilitation length of stay (R-LOS) has been shown to be a significant predictor of motor function restoration in persons with TSCI. Due to the complexity, and heterogeneity of individuals with TSCI, the R-LOS is challenging to predict at admission.

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Alberta has rich clinical and health services data held under the custodianship of Alberta Health and Alberta Health Services (AHS), which is not only used for clinical and administrative purposes but also disease surveillance and epidemiological research. Alberta is the largest province in Canada with a single payer centralised health system, AHS, and a consolidated data and analytics team supporting researchers across the province. This paper describes Alberta's data custodians, data governance mechanisms, and streamlined processes followed for research data access.

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People with HIV (PWH) are at increased risk of COVID-19 infection. Both Canadian (NACI) and US (CDC) guidelines recommend that all PWH receive at least 2 doses of COVID-19 vaccine, and a booster. We examined vaccination uptake among PWH in Southern Alberta, Canada.

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Background The prognostic utility of cardiovascular magnetic resonance imaging, including strain analysis and tissue characterization, has not been comprehensively investigated in adult patients with muscular dystrophy. Methods and Results We prospectively enrolled 148 patients with dystrophinopathies (including heterozygotes), limb-girdle muscular dystrophy, and type 1 myotonic dystrophy (median age, 36.0 [interquartile range, 23.

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Study Design: Retrospective observational cohort study.

Objectives: Estimate spinal cord injury (SCI) prevalence in First Nations and non-First Nations populations and compare healthcare utilization as an indirect marker of health inequities.

Setting: Alberta, Canada.

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Early and integrated palliative care is recommended for patients with idiopathic pulmonary fibrosis. Unfortunately, palliative care delivery remains poor due to various barriers in practice. This study describes various palliative care delivery models in a real-world cohort of patients with idiopathic pulmonary fibrosis, examines the predictors of survival in this cohort of patients, and explores the impact of palliative care on survival.

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xamine the validity of a novel dyspnea scale, Edmonton Dyspnea Inventory in idiopathic pulmonary fibrosis (IPF). Edmonton Dyspnea Inventory (EDI), is a clinical instrument to measure dyspnea severity with activities of daily living, exercise and rest using a numeric rating scale (0 -10). Consecutive IPF patients (2012-2018) with baseline MRC and EDI were included.

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Background: Composite endpoints for estimating treatment efficacy are routinely used in several therapeutic areas and have become complex in the number and types of component outcomes included. It is assumed that its components are of similar asperity and chronology between both treatment arms as well as uniform in magnitude of the treatment effect. However, these assumptions are rarely satisfied.

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Article Synopsis
  • This study analyzed outpatient visit patterns for 3.8 million adults in Alberta, Canada, comparing the year before and during the COVID-19 pandemic, focusing on cardiovascular issues like heart failure, hypertension, and diabetes.
  • While in-person visits dropped by 38.9% during the pandemic, the rise of virtual visits led to a 4.1% overall increase in total outpatient appointments.
  • Results showed that virtual visits were linked to fewer emergency department visits and hospitalizations for patients with the studied conditions compared to in-person visits.
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