Results 341 to 350 of about 6,812,320 (386)

A Case-Crossover Study of Sleep and Childhood Injury

Pediatrics, 2001
Objective.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, BRUSAFERRO, Silvio, BARBONE, Fabio   +2 more
openaire   +3 more sources

Differential Misclassification of Exposure in Case-Crossover Studies

Epidemiology, 2004
The 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, Anne-Charlotte, Hessén-Söderman, Johan, Hallqvist   +2 more
openaire   +2 more sources

Behavioral trigger factors for hemorrhagic stroke: a case-crossover study

Postgraduate Medical Journal, 2023
Abstract 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, Chun Luo, Chongyu Hu, Yuxin Guo, Fang Cao, Yifeng Li, Dun Yuan, Weixi Jiang, Junxia Yan   +8 more
openaire   +2 more sources

Within‐subject exposure dependency in case‐crossover studies

Statistics in Medicine, 2001
AbstractIn 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
openaire   +2 more sources

Acute Psychological Stress is a Trigger for Stroke: A Case-Crossover Study

Journal of Stroke and Cerebrovascular Diseases, 2020
Conventional risk factors for stroke that have been identified are mostly chronic diseases that explain much of the variation as to who develops stroke. However, these risk factors do not equip us with the means to predict when an event like stroke will occur. It has been observed that acute events like stroke and coronary heart disease are preceded by
Manya Prasad, Pardeep Khanna, V.K. Katyal, Ramesh Verma   +3 more
openaire   +2 more sources

Fluoroquinolone use and serious arrhythmias: A nationwide case-crossover study

Resuscitation, 2019
Fluoroquinolones have been associated with life-threatening ventricular arrhythmias and even sudden cardiac death. We aimed to assess the temporal relationship of fluoroquinolone use and serious arrhythmias via a case-crossover analysis of a large cohort of serious arrhythmias patients.In a national administrative database, we compare the distributions
Lorenzo, Porta, Meng-Tse Gabriel, Lee, Wan-Ting, Hsu, Tzu-Chun, Hsu, Tou-Yuan, Tsai, Chien-Chang, Lee   +5 more
openaire   +2 more sources

Pregabalin and injury: A nested case‐control and case‐crossover study

Pharmacoepidemiology and Drug Safety, 2020
AbstractPurposeThis 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, Masao Iwagami, Shotaro Aso, Hiroki Matsui, Kent Doi, Hideo Yasunaga   +5 more
openaire   +2 more sources

Case–Crossover Study of Partner and Situational Factors for Unprotected Sex

JAIDS Journal of Acquired Immune Deficiency Syndromes, 2002
To identify situational and partner characteristics associated with unprotected sex among women at risk for HIV infection.The most recent unprotected and protected sexual encounters were compared using a case-crossover design among 1,647 women enrolled in a prospective cohort study conducted in six U.S. cities.
George R, Seage, Sarah, Holte, Michael, Gross, Beryl, Koblin, Michael, Marmor, Kenneth H, Mayer, William R, Lenderking   +6 more
openaire   +2 more sources

Weather as a risk factor for epileptic seizures: A case‐crossover study

Epilepsia, 2017
SummaryObjectiveMost 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, Mario, Walther, Rene, Schiffner, Sven, Rupprecht, Marius, Rasche, Michael, Kockler, Otto W, Witte, Peter, Schlattmann, Matthias, Schwab   +8 more
openaire   +2 more sources

Association of Cerebrovascular Events With Antidepressant Use: A Case-Crossover Study

American Journal of Psychiatry, 2011
The authors sought to assess the risk of cerebrovascular events associated with use of antidepressant medications.The authors conducted a case-crossover study of 24,214 patients with stroke enrolled in the National Health Insurance Research Database in Taiwan from 1998 to 2007.
Chi-Shin, Wu, Sheng-Chang, Wang, Yu-Cheng, Cheng, Susan Shur-Fen, Gau   +3 more
openaire   +2 more sources