Results 21 to 30 of about 3,026,493 (306)

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.
Katsiaryna Bykov, Shirley V. Wang, Jesper Hallas, Anton Pottegård, Malcolm Maclure, Joshua J. Gagne   +5 more
openaire   +2 more sources

Association of short-term exposure to ambient PM1 with total and cause-specific cardiovascular disease mortality

Environment International, 2022
Background: The acute effects of exposure to ambient particulate matter with an aerodynamic diameter ≤1 μm (PM1) on cardiovascular disease (CVD) mortality remain unclear.
Ruijun Xu, Jing Wei, Tingting Liu, Yingxin Li, Chunyu Yang, Chunxiang Shi, Gongbo Chen, Yun Zhou, Hong Sun, Yuewei Liu   +9 more
doaj   +1 more source

Case-crossover studies of occupational trauma: methodological caveats [PDF]

Injury Prevention, 2001
Objectives—The case-crossover study design was developed to examine triggers for the onset of myocardial infarction. This paper seeks to examine selected methodological issues when applying the case-crossover method to the study of traumatic injuries in the work environment.Methods—Researchers known to be working on occupational case-crossover studies ...
G S, Sorock, D A, Lombardi, C L, Gabel, G S, Smith, M A, Mittleman   +4 more
openaire   +2 more sources

Ambient Particulate Matter (PM2.5/PM10) Exposure and Emergency Department Visits for Acute Myocardial Infarction in Chaoyang District, Beijing, China During 2014: A Case-Crossover Study

Journal of Epidemiology, 2016
Background: Epidemiology studies have shown a consistently increased risk of acute myocardial infarction (AMI) correlated with particulate matter (PM) exposure. However, little is known about the association with specific AMI subtypes. In this work, we
Qian Zhang
doaj   +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

Sample size estimation for case‐crossover studies

Statistics in Medicine, 2018
Case‐crossover study designs are observational studies used to assess postmarket safety of medical products (eg, vaccines or drugs). As a case‐crossover study is self‐controlled, its advantages include better control for confounding because the design controls for any time‐invariant measured and unmeasured confounding and potentially greater ...
Sai Dharmarajan, Joo‐Yeon Lee, Rima Izem   +2 more
openaire   +4 more sources

Risk of Heart Failure Hospitalization Associated With Cilostazol in Diabetes: A Nationwide Case–Crossover Study

Frontiers in Pharmacology, 2019
Background and Objective: It has been suggested to avoid cilostazol, the first-line therapy for peripheral arterial disease, in patients with congestive heart failure (HF). The objective of this study was to evaluate the risk of hospitalization for heart
Cho-Kai Wu, Cho-Kai Wu, Jou-Wei Lin, Jou-Wei Lin, Li-Chiu Wu, Chia-Hsuin Chang, Chia-Hsuin Chang, Chia-Hsuin Chang   +7 more
doaj   +1 more source

Triggers for Preeclampsia Onset: a Case‐Crossover Study

Paediatric and Perinatal Epidemiology, 2016
AbstractBackgroundRisk factors for preeclampsia are well established, whereas, the triggers associated with timing of preeclampsia onset are not. The aim of this study was to establish whether recent infection or other triggers were associated with timing of preeclampsia onset.MethodsWe used a case‐crossover design with preeclampsia cases serving as ...
Jane B, Ford, Kathrin, Schemann, Jillian A, Patterson, Jonathan, Morris, Robert D, Herbert, Christine L, Roberts   +5 more
openaire   +3 more sources

Short-term effects of ambient ozone on pediatric pneumonia hospital admissions: a multi-city case-crossover study in China

Environmental Health and Preventive Medicine
Background: Children’s respiratory health demonstrates particular sensitivity to air pollution. Existing evidence investigating the association between short-term ozone (O3) exposure and childhood pneumonia remains insufficient and inconsistent ...
Huan Wang, Huan-Ling Zeng, Guo-Xing Li, Shuang Zhou, Jin-Lang Lyu, Qin Li, Guo-Shuang Feng, Hai-Jun Wang   +7 more
doaj   +1 more source

Acute triggers of myocardial infarction: A case-crossover study

The Egyptian Heart Journal, 2017
Acute myocardial infarction (AMI) is one of the most preventable non-communicable diseases in human. Identifying triggers of myocardial infarction (MI) and prevention ways of exposure-induced complications can reduce morbidity and mortality in people at risk.The aim of this study was to identify the emotional, environmental, physical and chemical ...
Maryam Ghiasmand, Mohammad Taghi Moghadamnia, Majid Pourshaikhian, Ehsan Kazemnejad Lili   +3 more
openaire   +3 more sources