72,152 results match your criteria: "McMaster University; Hamilton[Affiliation]"

Although several studies have well described the characteristics of people who use psychedelics alongside their motivations and beliefs, little research has examined the preferences surrounding the source of psychedelic substances. In an anonymous online survey, we collected data from 6,379 consumers of 11 different psychedelic substances from 85 different countries, exploring their preferences and perceptions on natural and synthetic psychedelics. There was a strong preference of natural sources over synthetic alternatives for psilocybin (75%), DMT (56%), and mescaline (56%).

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Integrating environmental outcomes in randomised clinical trials: a call to action.

Lancet

December 2024

Copenhagen Trial Unit, Centre for Clinical Intervention Research, Copenhagen University Hospital Rigshospitalet, Tagensvej 22, DK-2200 Copenhagen, Denmark; Department of Regional Health Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.

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Objective: The COVID-19 pandemic highlighted and exacerbated health inequities worldwide. While several studies have examined the impact of individual social factors on COVID infection, our objective was to examine how interactions of social factors were associated with the risk of testing positive for SARS-CoV-2 during the first two years of the pandemic.

Study Design And Setting: We conducted an observational cohort study using linked health administrative data for Ontarians tested for SARS-CoV-2 between January 1st, 2020, and December 31st, 2021.

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Comprehensive scoping review of palliative care development in Africa: recent advances and persistent gaps.

Front Health Serv

December 2024

Institute for Culture and Society, ATLANTES Global Observatory of Palliative Care, University of Navarra, Pamplona, Spain.

Worldwide 56·8 million people need palliative care (PC), and Africa shows the highest demand. This study updates the 2017 review of African PC development, using a scoping review methodology based on Arksey and O'Malley's framework and the PRISMA-ScR checklist. The review was conducted across PUBMED, CINAHL, Embase, government websites, and the African PC Association Atlas, from 2017 to 2023, charting its progress using the new WHO framework for PC Development, which, in addition to Services, Education, Medicines, and Policies, two new dimensions were incorporated: Research and Empowerment of people and Communities.

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Is severe medial knee osteoarthritis a risk factor for dissatisfaction following medial open-wedge high tibial osteotomy in patients 55 years of age or younger?

Orthop Traumatol Surg Res

December 2024

Department of Orthopaedic Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-Daero, Seocho-Gu, Seoul, 06591, Republic of Korea. Electronic address:

Introduction: Although previous studies have shown that severe medial knee osteoarthritis (OA) (Kellgren-Lawrence grade IV) is a risk factor for patient dissatisfaction following medial open-wedge high tibial osteotomy (MOWHTO), it is uncommon to perform arthroplasty as a primary surgical option in patients 55 years of age or younger. Thus, the purpose of our study was to evaluate whether severe medial knee OA is a risk factor for dissatisfaction following MOWHTO depending on patient age based on a cutoff of 55 years.

Material And Methods: We retrospectively reviewed the data of 270 consecutive patients who underwent MOWHTO with a minimum of 2 years of follow up.

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Background: We have previously developed and reported on a procedure for estimating the purported benefits of immunity mandates using a novel variant of the number needed to treat (NNT) which we called the number needed to isolate (NNI). Here we demonstrate its broader properties as a useful population health metric.

Main Body: The NNI is analogous to the number needed to treat (NNT = 1/ARR), except the absolute risk reduction (ARR) is the absolute transmission risk in a specific population.

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Burn injuries represent a significant global challenge due to their multifaceted nature, characterized by a complex cascade of metabolic and immune dysfunction that can result in severe complications. If not identified and managed promptly, these complications can escalate, often leading to fatal outcomes. This underscores the critical importance of timely and precise diagnosis.

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Auditory rhythm encoding during the last trimester of human gestation: From tracking the basic beat to tracking hierarchical nested temporal structures.

J Neurosci

December 2024

Inserm UMR1105, Groupe de Recherches sur l'Analyse Multimodale de la Fonction Cérébrale, CURS, Avenue Laennec, 80036 Amiens Cedex, France

Rhythm perception and synchronization to periodicity hold fundamental neurodevelopmental importance for language acquisition, musical behavior, and social communication. Rhythm is omnipresent in the fetal auditory world and newborns demonstrate sensitivity to auditory rhythmic cues. During the last trimester of gestation, the brain begins to respond to auditory stimulation and to code the auditory environment.

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Objective: To examine the highest certainty evidence addressing the management of X-linked hypophosphatemia (XLH) in adults to inform treatment recommendations.

Methods: We searched Embase, MEDLINE, Web of Science, and Cochrane Central up to May 2023. Eligible studies included RCTs and observational studies of individuals 18+ with clinically or genetically confirmed XLH.

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Introduction: The clinical benefits of fluticasone furoate/umeclidinium/vilanterol (FF/UMEC/VI) have been demonstrated in clinical trials. There is limited evidence regarding the effectiveness and economic outcomes associated with FF/UMEC/VI use in US clinical practice. This real-world study assessed asthma-related exacerbations, healthcare resource utilization (HRU), and healthcare costs among a Medicare Advantage-insured population before and after initiation of FF/UMEC/VI in patients with asthma previously treated with an inhaled corticosteroid/long-acting β-agonist (ICS/LABA).

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The creation of anisotropic nanoparticles (NPs) by polymerization and/or self-assembly (SA) has significantly promoted the applications of polymer nanomaterials in many fields. However, polymer nanorods are not easily accessible via conventional polymerization or SA. Here we report a one-step route to synthesize single-domain smectic liquid crystalline (LC) nanorods utilizing oriented attachment (OA) that was usually found in the synthesis of inorganic NPs, synchronized with polymerization and SA.

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We consider wavefunctions built from antisymmetrized products of two-electron wavefunctions (geminals), which is arguably the simplest extension of the antisymmetrized product of one-electron wavefunctions (orbitals) (i.e., a Slater determinant).

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Background: A growing population of youth with medical complexity (YMC) are entering adult health care, education, and social systems in which their needs have been largely neglected. To better support YMC and their families, an understanding of how they manage the challenges of transitioning to adult services is needed. The aim of this study was to examine how families of YMC adapt to challenges and opportunities posed by the youth's transition to adulthood and transfer to adult services.

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Objective: Osteoarthritis (OA), particularly knee OA, affects 24% of adults and is a significant cause of disability. Nonsteroidal anti-inflammatory drugs (NSAIDs) are commonly used but have many adverse effects. Antioxidant and anti-iflammatory properties of might decrease pain thus improving joint function.

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Validation of the Portuguese Version of the Modified Harris Hip Score Questionnaire - HHSmBr.

Rev Bras Ortop (Sao Paulo)

December 2024

Grupo de Quadril, Departamento de Ortopedia e Traumatologia, Faculdade de Ciências Médicas da Santa Casa de Misericórdia de São Paulo (FCMSCSP), São Paulo, SP, Brasil.

 To validate the Portuguese version of the evaluation instrument modified Harris Hip Score.  The modified Harris Hip Score went through a validation process for the Portuguese language. We tested the measurement properties of the Brazilian Portuguese version of the modified Harris Hip Score (HHSmBr) on 100 patients (63% females and 37% males) with different hip conditions.

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Efficacy of Genicular Nerve Block in Patients with Osteoarthritis: A Comparative Study with and without Fluoroscopy Assistance.

Rev Bras Ortop (Sao Paulo)

December 2024

Grupo do Joelho e Artroscopia, Departamento de Ortopedia e Traumatologia, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brasil.

 To compare the efficacy of fluoroscopy as an auxiliary method in genicular nerve block (GNB) with block guidance by anatomical parameters, without imaging aid, in reducing pain.  A total of 23 patients underwent fluoroscopy-guided or anatomical parameter-based GNBs. We applied the Western Ontario and McMaster Universities' Osteoarthritis Index (WOMAC) and the Visual Analog Scale (VAS) for pain at 6 time points (preblock, and after 1 hour, 24 hours, 7 days, 28 days, and 90 days).

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Background: Vaginal pessaries are a common method of managing pelvic organ prolapse (POP), as well as different types of urinary incontinence, allowing patients to successfully improve overall quality of life. Yet despite their positive attributes, there are several reasons why patients may choose to discontinue using pessaries and proceed with surgery to treat their condition instead. This study aimed to explore patients' experiences of pessary use in treating POP.

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Impact of transcranial Doppler screening on stroke prevention in children and adolescents with sickle cell disease: A systematic review and meta-analysis.

Blood Rev

December 2024

Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada; Departments of Paediatrics and Medicine, University of Toronto, Ontario, Canada. Electronic address:

Background: Children with sickle cell disease (SCD) have increased stroke risk, identifiable by elevated velocities on transcranial Doppler (TCD). This review assessed the impact of TCD screening on stroke, mortality, quality of life and morbidity in children with SCD.

Methods: A systematic search of MEDLINE, PubMed, Cochrane libraries, and trial registries was conducted from inception to 28th February 2023.

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Do school-based prevention programs impact co-occurring alcohol use and psychological distress during adolescence?

Psychol Med

December 2024

The Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, Sydney, NSW, Australia.

Background: Adolescence is a critical period for preventing substance use and mental health concerns, often targeted through separate school-based programs. However, co-occurrence is common and is related to worse outcomes. This study explores prevention effects of leading school-based prevention programs on co-occurring alcohol use and psychological distress.

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Background: Accurate component placement plays a critical role in the outcome of total hip arthroplasty (THA). Robotic-assisted THA (R-THA) has emerged as an option to optimize this aspect compared to the conventional manual THA (C-THA). The aim of this meta-analysis was to analyze the studies comparing R-THA and C-THA.

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Associations between bone mineral density and WOMAC scores in healthy individuals: Insights from the Qatar Biobank.

J Clin Densitom

November 2024

Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, 2713, Qatar. Electronic address:

Background: Bone mineral density (BMD) is an indicator of bone health that predicts future bone fractures. The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) is used to assess the severity of symptoms related to pain, stiffness, and function in diseased hip and knee joints. Here we assessed whether BMD measured at specific sites predicts WOMAC scores in healthy individuals whilst controlling for sociodemographic variables.

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Sudden deaths in infants and children represent a profound and tragic event that continues to challenge researchers despite extensive investigation over several decades. The predominant phenotype, sudden infant death syndrome (SIDS), has evolved into the broader category of sudden unexpected infant death (SUID). In older children, a less understood phenomenon known as sudden unexplained death in childhood (SUDC) has garnered attention.

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