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Daylight Saving Time and Acute Myocardial Infarction: A Meta-Analysis.


ABSTRACT: BACKGROUND:The available evidence on the effects of daylight saving time (DST) transitions on major cardiovascular diseases is limited and conflicting. We carried out the first meta-analysis aimed at evaluating the risk of acute myocardial infarction (AMI) following DST transitions. METHODS:We searched cohort or case-control studies evaluating the incidence of AMI, among adults (?18 y), during the weeks following spring and/or autumn DST shifts, versus control periods. The search was made in MedLine and Scopus, up to 31 December 2018, with no language restriction. A summary odds ratio of AMI was computed after: (1) spring, (2) autumn or (3) both transitions considered together. Meta-analyses were also stratified by gender and age. Data were combined using a generic inverse-variance approach. RESULTS:Seven studies (>115,000 subjects) were included in the analyses. A significantly higher risk of AMI (Odds Ratio: 1.03; 95% CI: 1.01?1.06) was observed during the two weeks following spring or autumn DST transitions. However, although AMI risk increased significantly after the spring shift (OR: 1.05; 1.02?1.07), the incidence of AMI during the week after winter DST transition was comparable with control periods (OR 1.01; 0.98?1.04). No substantial differences were observed when the analyses were stratified by age or gender. CONCLUSION:The risk of AMI increases modestly but significantly after DST transitions, supporting the proposal of DST shifts discontinuation. Additional studies that fully adjust for potential confounders are required to confirm the present findings.

SUBMITTER: Manfredini R 

PROVIDER: S-EPMC6463000 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Daylight Saving Time and Acute Myocardial Infarction: A Meta-Analysis.

Manfredini Roberto R   Fabbian Fabio F   Cappadona Rosaria R   De Giorgi Alfredo A   Bravi Francesca F   Carradori Tiziano T   Flacco Maria Elena ME   Manzoli Lamberto L  

Journal of clinical medicine 20190323 3


<h4>Background</h4>The available evidence on the effects of daylight saving time (DST) transitions on major cardiovascular diseases is limited and conflicting. We carried out the first meta-analysis aimed at evaluating the risk of acute myocardial infarction (AMI) following DST transitions.<h4>Methods</h4>We searched cohort or case-control studies evaluating the incidence of AMI, among adults (≥18 y), during the weeks following spring and/or autumn DST shifts, versus control periods. The search  ...[more]

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