Results 21 to 30 of about 7,367,624 (346)

Fatal opioid overdoses during and shortly after hospital admissions in England: A case-crossover study

PLoS Medicine, 2021
Background Hospital patients who use illicit opioids such as heroin may use drugs during an admission or leave the hospital in order to use drugs. There have been reports of patients found dead from drug poisoning on the hospital premises or shortly ...
D. Lewer, B. Eastwood, Martin White, T. Brothers, Martin McCusker, Caroline Copeland, M. Farrell, I. Petersen   +7 more
semanticscholar   +1 more source

Kawasaki Disease and Vaccination: Prospective Case-Control and Case-Crossover Studies among Infants in Japan

Vaccines, 2021
The causal effects of vaccines on Kawasaki disease (KD) remain elusive. We aimed to examine the association between vaccines administered during infancy and the development of KD in Japan.
Kenji Murata, Sagano Onoyama, Kenichiro Yamamura, Yumi Mizuno, Kenji Furuno, Keita Matsubara, Ken Hatae, Kiminori Masuda, Yuichi Nomura, Takuro Ohno, Akiko Kinumaki, Masaru Miura, Yasunari Sakai, Shouichi Ohga, Wakaba Fukushima, Junji Kishimoto, Yosikazu Nakamura, Toshiro Hara   +17 more
doaj   +1 more source

Effect of ambient fine particulates (PM2.5) on hospital admissions for respiratory and cardiovascular diseases in Wuhan, China

Respiratory Research, 2021
Background Positive associations between ambient PM2.5 and cardiorespiratory disease have been well demonstrated during the past decade. However, few studies have examined the adverse effects of PM2.5 based on an entire population of a megalopolis.
Zhan Ren, Xingyuan Liu, Tianyu Liu, Dieyi Chen, Kuizhuang Jiao, Xiaodie Wang, Jingdong Suo, Haomin Yang, Jingling Liao, Lu Ma   +9 more
doaj   +1 more source

Short-term exposure to PM2.5 and 1.5 million deaths: a time-stratified case-crossover analysis in the Mexico City Metropolitan Area

Environmental Health, 2023
Background Satellite-based PM2.5 predictions are being used to advance exposure science and air-pollution epidemiology in developed countries; including emerging evidence about the impacts of PM2.5 on acute health outcomes beyond the cardiovascular and ...
Iván Gutiérrez-Avila, Horacio Riojas-Rodríguez, Elena Colicino, Johnathan Rush, Marcela Tamayo-Ortiz, Víctor Hugo Borja-Aburto, Allan C. Just   +6 more
doaj   +1 more source

Persistent User Bias in Case-Crossover Studies in Pharmacoepidemiology [PDF]

American Journal of Epidemiology, 2016
Studying the effect of chronic medication exposure by means of a case-crossover design may result in an upward-biased odds ratio. In this study, our aim was to assess the occurrence of this bias and to evaluate whether it is remedied by including a control group (the case-time-control design).
Hallas, Jesper, Pottegård, Anton, Wang, Shirley, Schneeweiss, Sebastian, Gagne, Joshua J   +4 more
openaire   +4 more sources

Mortality associated with wildfire smoke exposure in Washington state, 2006–2017: a case-crossover study

Environmental Health, 2020
Background Wildfire events are increasing in prevalence in the western United States. Research has found mixed results on the degree to which exposure to wildfire smoke is associated with an increased risk of mortality.
A. Doubleday, Jill Schulte, L. Sheppard, Matt Kadlec, R. Dhammapala, J. Fox, Tania M Busch Isaksen   +6 more
semanticscholar   +1 more source

Surgery As a Trigger for Incident Venous Thromboembolism: Results from a Population-Based Case-Crossover Study

TH Open, 2023
Background Surgery is a major transient risk factor for venous thromboembolism (VTE). However, the impact of major surgery as a VTE trigger has been scarcely investigated using a case-crossover design.
Dana Meknas, Sigrid K. Brækkan, John-Bjarne Hansen, Vânia M. Morelli   +3 more
doaj   +1 more source

Relativistic BCS-BEC crossover in a boson-fermion model [PDF]

, 2006
We investigate the crossover from Bardeen-Cooper-Schrieffer (BCS) pairing to a Bose-Einstein condensate (BEC) in a relativistic superfluid within a boson-fermion model.
A. I. Larkin, A. I. Larkin, A. J. Leggett, Andreas Schmitt, D. T. Son, J. Ranninger, J. I. Kapusta, Jian Deng, Qun Wang, R. Casalbuoni, S. Reddy   +10 more
core   +2 more sources

Temporal trends of the association between ambient temperature and hospitalisations for cardiovascular diseases in Queensland, Australia from 1995 to 2016: A time-stratified case-crossover study

PLoS Medicine, 2020
Background In the context of global warming, studies have turned to assess the temporal trend of the association between temperature and health outcomes, which can be used to reflect whether human beings have adapted to the local temperature.
P. Lu, Guoxin Xia, Qi Zhao, R. Xu, Shanshan Li, Yuming Guo   +5 more
semanticscholar   +1 more source

Bias in case‐crossover studies of medications due to persistent use: A simulation study [PDF]

Pharmacoepidemiology and Drug Safety, 2020
AbstractPurposeThe case‐crossover design is increasingly used to evaluate the effects of chronic medications; however, as traditionally implemented in pharmacoepidemiology, with referent period preceding the outcome, it may lead to bias in the presence of persistent exposures.
Anton Pottegård, Jesper Hallas, Jesper Hallas, Malcolm Maclure, Katsiaryna Bykov, Shirley V. Wang, Joshua J. Gagne   +6 more
openaire   +3 more sources