287 results match your criteria: "Chan School of Public Health. Boston[Affiliation]"
Background And Aims: Nursing home research may involve eliciting information from managers, yet response rates for Directors of Nursing have not been recently studied. As a part of a more extensive study, we surveyed all nursing homes in three states in 2018 and 2019, updating how to survey these leaders effectively. We focus on response rates as a measure of non-response error and comparison of nursing home's characteristics to their population values as a measure of representation error.
View Article and Find Full Text PDFSalud Publica Mex
May 2021
Center for Communicable Disease Dynamics, Department of Epidemiology, Harvard T.H. Chan School of Public Health. Boston, United States.
Objective: To estimate temporary changes in the inciden-ce of SARS-CoV-2-confirmed hospitalizations (by date of symptom onset) by age group during and after the national lockdown.
Materials And Methods: For each age group g, we computed the proportion E(g) of individuals in that age group among all cases aged 10-59y during the early lock-down period (April 20-May 3, 2020), and the corresponding proportion L(g) during the late lockdown (May 18-31, 2020) and post-lockdown (June 15-28, 2020) periods and computed the prevalence ratio: PR(g)=L(g)/E(g).
Results: For the late lockdown and post-lockdown periods, the highest PR values were found in age groups 15-19y (late: PR=1.
Am J Cancer Res
May 2021
Duke Cancer Institute, Duke University Medical Center Durham, NC 27710, USA.
Although natural killer (NK) cells are a known major player in anti-tumor immunity, the effect of genetic variation in NK-associated genes on survival in patients with non-small cell lung cancer (NSCLC) remains unknown. Here, in 1,185 with NSCLC cases of a discovery dataset, we evaluated associations of 28,219 single nucleotide polymorphisms (SNPs) in 276 NK-associated genes with their survival. These patients were from the reported genome-wide association study (GWAS) from the Prostate, Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial.
View Article and Find Full Text PDFArsenic trioxide (ATO) is generally well tolerated for treatment of APL. We present a patient with severe watery diarrhea and pancreatitis thought to be due to ATO toxicity in the setting of obesity and acute kidney injury. Future studies evaluating ATO levels in patients experiencing toxicities may help guide dose modifications.
View Article and Find Full Text PDFBackground To understand when results from observational studies and randomized trials are comparable, we performed an observational emulation of a target trial designed to ask similar questions as the VALIDATE (Bivalirudin Versus Heparin in ST-Segment and Non-ST-Segment Elevation Myocardial Infarction in Patients on Modern Antiplatelet Therapy) randomized trial. The VALIDATE trial compared the effect of bivalirudin and heparin during percutaneous coronary intervention on the risk of death, myocardial infarction, and bleeding across Sweden. Methods and Results We specified the protocol of a target trial similar to the VALIDATE trial, then emulated the target trial in the period before the VALIDATE trial took place using data from the SWEDEHEART (Swedish Web System for Enhancement and Development of Evidence-Based Care in Heart Disease Evaluated According to Recommended Therapies) registry-the same registry in which the trial was undertaken.
View Article and Find Full Text PDFNat Commun
May 2021
Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK.
Background Long-term air pollution exposure is a significant risk factor for inpatient hospital admissions in the general population. However, we lack information on whether long-term air pollution exposure is a risk factor for hospital readmissions, particularly in individuals with elevated readmission rates. Methods and Results We determined the number of readmissions and total hospital visits (outpatient visits+emergency room visits+inpatient admissions) for 20 920 individuals with heart failure.
View Article and Find Full Text PDFJ Am Heart Assoc
May 2021
Kaiser Permanente Division of Research Oakland CA.
Background Previous studies have found associations between fine particulate matter <2.5 µm in diameter (PM) and increased risk of cardiovascular disease (CVD) among populations with no CVD history. Less is understood about susceptibility of adults with a history of CVD and subsequent PM-related CVD events and whether current regulation levels for PM are protective for this population.
View Article and Find Full Text PDFBackground Maternal chronic hypertension is associated with adverse pregnancy outcomes. Previous studies examined the association between either chronic hypertension or antihypertensive treatment and adverse pregnancy outcomes. We aimed to synthesize the evidence on the effect of chronic hypertension/antihypertensive treatment on adverse pregnancy outcomes.
View Article and Find Full Text PDFAim: Biogeographical regions (realms) reflect patterns of co-distributed species (biotas) across space. Their boundaries are set by dispersal barriers and difficulties of establishment in new locations. We extend new methods to assess these two contributions by quantifying the degree to which realms intergrade across geographical space and the contributions of individual species to the delineation of those realms.
View Article and Find Full Text PDFAlzheimers Dement (N Y)
March 2021
Aging Brain Center, Institute for Aging Research Hebrew SeniorLife Boston Massachusetts USA.
Introduction: The interaction between delirium and dementia is complex. We examined if Alzheimer's disease (AD) biomarkers in patients without clinical dementia are associated with increased risk of postoperative delirium, and whether AD biomarkers demonstrate a graded association with delirium severity.
Methods: Participants ( = 59) were free of clinical dementia, age 70 years, and scheduled for elective total knee or hip arthroplasties.
J Am Heart Assoc
March 2021
Background Mounting evidence suggests that circulating microRNAs (miRNAs) are critical indicators of cardiovascular disease. However, prospective studies linking circulating miRNAs to incident acute coronary syndrome (ACS) are limited, and the underlying effect of associated miRNA on incident ACS remains unknown. Methods and Results Based on a 2-stage prospective nested case-control design within the Dongfeng-Tongji cohort, we profiled plasma miRNAs from 23 pairs of incident ACS cases and controls by microarray and validated the candidate miRNAs in 572 incident ACS case-control pairs using quantitative real-time polymerase chain reaction.
View Article and Find Full Text PDFmedRxiv
February 2021
Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Background: Racial and ethnic minorities have been disproportionately impacted by COVID-19. In the initial phase of population-based vaccination in the United States (U.S.
View Article and Find Full Text PDFBackground Sexual assault is a risk factor for poor mental health, yet its relationship to cardiovascular disease risk is not understood. We tested whether women with a sexual assault history had greater carotid atherosclerosis levels and progression over midlife. Methods and Results A total of 169 non-smoking, cardiovascular disease-free women aged 40 to 60 years were assessed twice over 5 years.
View Article and Find Full Text PDFJ Am Heart Assoc
February 2021
Background Presence of clonal hematopoiesis of indeterminate potential (CHIP) is associated with a higher risk of atherosclerotic cardiovascular disease, cancer, and mortality. The relationship between a healthy lifestyle and CHIP is unknown. Methods and Results This analysis included 8709 postmenopausal women (mean age, 66.
View Article and Find Full Text PDFNat Commun
February 2021
Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK.
Breast cancer (BC) risk for BRCA1 and BRCA2 mutation carriers varies by genetic and familial factors. About 50 common variants have been shown to modify BC risk for mutation carriers. All but three, were identified in general population studies.
View Article and Find Full Text PDFNat Commun
February 2021
Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.
JBMR Plus
January 2021
School of Population Health, University of Auckland Auckland New Zealand.
The relationship between vitamin D status or supplementation and cancer outcomes has been examined in several meta-analyses. To address remaining knowledge gaps, we conducted a systematic overview and critical appraisal of pertinent meta-analyses. For meta-analyses of trials, we assessed their quality using AMSTAR-2 (A Measurement Tool to Assess Systematic Reviews), strength of associations using umbrella review methodology and credibility of evidence using GRADE (Grading of Recommendations, Assessment, Development, and Evaluation) criteria.
View Article and Find Full Text PDFmedRxiv
January 2021
Department of Neurosurgery, Center for Neuroregeneration, Houston Methodist Research Institute, Houston, Texas, USA.
COVID-19, caused by SARS-CoV-2, can involve sequelae and other medical complications that last weeks to months after initial recovery, which has come to be called Long-COVID or COVID long-haulers. This systematic review and meta-analysis aims to identify studies assessing long-term effects of COVID-19 and estimates the prevalence of each symptom, sign, or laboratory parameter of patients at a post-COVID-19 stage. LitCOVID (PubMed and Medline) and Embase were searched by two independent researchers.
View Article and Find Full Text PDFJ Am Coll Emerg Physicians Open
February 2021
HIV screening in the emergency department (ED), including universal screening irrespective of risk assessments, has shown strong promise in past studies, identifying many new cases of HIV infection among those who lack access to traditional HIV testing services. Yet, over the years a consistent set of challenges and limitations have presented themselves in settings throughout the United States. We review considerations for evaluating and improving the success of ED-based HIV screening programs in the United States.
View Article and Find Full Text PDFRedox Biol
January 2021
Department of Preventive Medicine and Public Health. School of Medicine. Universidad Autónoma de Madrid, Madrid. Spain; IdiPaz (Instituto de Investigación Sanitaria Hospital Universitario La Paz), Madrid, Spain; CIBERESP (CIBER of Epidemiology and Public Health), Madrid, Spain; IMDEA Research Institute on Food and Health Sciences. Universidad Autónoma de Madrid + Centro Superior de Investigaciones Científicas (CSIC), Madrid, Spain.
Background: Selenium (Se) is a trace element with a narrow safety margin.
Objectives: To evaluate the cross-sectional and longitudinal dose-response association between Se exposure and measures of impaired physical function and disability in older adults.
Design: NHANES 2011-2014 cross-sectional (US, n = 1733, age ≥60 years) and Seniors-ENRICA-2 2017-2019 cross-sectional and longitudinal (Spain, n = 2548 and 1741, respectively, age ≥65 years) data were analyzed.