Results 261 to 270 of about 3,026,493 (306)
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Ambient temperature and preterm birth: A case‐crossover study
BJOG: An International Journal of Obstetrics & Gynaecology, 2023AbstractObjectiveTo investigate the association between ambient temperature and preterm birth (PTB) and to estimate the population attributable fraction (PAF) of PTBs due to low and high temperatures.DesignTime‐stratified case‐crossover design.SettingJapan (46 prefectures, excluding Okinawa), 2011–2020.Sample214 050 PTBs registered in the Japan ...
Shuhei Terada +3 more
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The case-crossover study design in pharmacoepidemiology
Statistical Methods in Medical Research, 2009In the study of the association of transient drug exposures with acute outcomes, the case-crossover design is an efficient alternative to the case-control approach. This design based exclusively on the case series uses within-subject comparisons of drug exposures over time to estimate the rate ratio of the outcome associated with the drug under study ...
Joseph A 'Chris', Delaney, Samy, Suissa
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Interpretation and bias in case-crossover studies
Journal of Clinical Epidemiology, 1997The case-crossover design is an innovative epidemiologic technique with distinct strengths and limitations. We review the fundamental logic of this self-matching non-randomized design and direct attention to 15 concerns related to the available data, unavailable data, analytic technique, quantitative statistics, and etiologic model.
D A, Redelmeier, R J, Tibshirani
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Alcohol and injury. A case-crossover study
Archives of Family Medicine, 1995To determine whether and to what extent alcohol consumption increases the risk of injury.The case-crossover study is a new research design for assessing rare acute events (such as trauma) in relation to intermittent exposures (such as alcohol use) that have transient effects.
D C, Vinson +6 more
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A Case-Crossover Study of Sleep and Childhood Injury
Pediatrics, 2001Objective.To evaluate the association between sleep and wakefulness duration and childhood unintentional injury.Study Design.Case-crossover study.Methods.Two hundred ninety-two injured children who presented at the Children's Emergency Center of Udine, Italy, or their parents were interviewed after a structured questionnaire.
VALENT, Francesca +2 more
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Differential Misclassification of Exposure in Case-Crossover Studies
Epidemiology, 2004The aim of this study is to examine 2 types of differential misclassification of exposure in case-crossover studies. The first is the outcome-dependent misclassification of exposure, meaning that if an event has occurred, it could affect the reporting of exposure.
Jette, Möller +2 more
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Within‐subject exposure dependency in case‐crossover studies
Statistics in Medicine, 2001AbstractIn the case‐crossover design, only cases are sampled and the hazard ratio is estimated from within‐subject comparisons of exposures at the event time and in M control periods prior to the event. We consider the effect of within‐subject dependence of exposures in successive time periods.
S K, Vines, C P, Farrington
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Behavioral trigger factors for hemorrhagic stroke: a case-crossover study
Postgraduate Medical Journal, 2023Abstract Background The role and extent of the effects of short-term behavioral factors on the risk of hemorrhagic stroke (HS) are unclear. This study aimed to assess and quantify behavioral trigger factors (BTFs) for HS and identify the differences in BTFs between Chinese and other populations.
Junyu Liu +8 more
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Pregabalin and injury: A nested case‐control and case‐crossover study
Pharmacoepidemiology and Drug Safety, 2020AbstractPurposeThis study was performed to investigate the association between the use of pregabalin and injury.MethodsThe study was based on a predefined cohort of patients aged ≥20 years who had been registered for ≥6 months and contributed to the Japan Medical Data Center claims database.
Yoshihisa Miyamoto +5 more
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Weather as a risk factor for epileptic seizures: A case‐crossover study
Epilepsia, 2017SummaryObjectiveMost epileptic seizures occur unexpectedly and independently of known risk factors. We aimed to evaluate the clinical significance of patients’ perception that weather is a risk factor for epileptic seizures.MethodsUsing a hospital‐based, bidirectional case‐crossover study, 604 adult patients admitted to a large university hospital in ...
Florian, Rakers +8 more
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