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Association of daylight saving time transitions with incidence and in-hospital mortality of myocardial infarction in Finland.
Ann Med. 2016; 48(1-2):10-6.AM

Abstract

INTRODUCTION

Circadian rhythm disturbance increases cardiovascular risk but the effects of daylight saving time (DST) transitions on the risk of myocardial infarction (MI) are unclear.

METHODS

We studied association of DST transitions in 2001-2009 with incidence and in-hospital mortality of MI admissions nationwide in Finland. Incidence rations (IR) of observed incidences on seven days following DST transition were compared to expected incidences.

RESULTS

Incidence of MI increased on Wednesday (IR 1.16; CI 1.01-1.34) after spring transition (6298 patients' cohort). After autumn transition (8161 patients' cohort), MI incidence decreased on Monday (IR 0.85; CI 0.74-0.97) but increased on Thursday (IR 1.15; CI 1.02-1.30). The overall incidence of MI during the week after each DST transition did not differ from control weeks. Patient age or gender, type of MI or in-hospital mortality were not associated with transitions. Renal insufficiency was more common among MI patients after spring transition (OR 1.81; CI 1.06-3.09; p < 0.05). Diabetes was less common after spring transition (OR 0.71; CI 0.55-0.91; p = 0.007), but more common after autumn transition (OR 1.21; 1.00-1.46; p < 0.05).

CONCLUSIONS

DST transitions are followed by changes in the temporal pattern but not the overall rate of MI incidence. Comorbidities may modulate the effects DST transitions.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Sipilä JO
a Department of Neurology , North Karelia Central Hospital , Joensuu , Finland ; b Department of Neurology , University of Turku , Turku , Finland ; c Division of Clinical Neurosciences , Turku University Hospital , Turku , Finland ;
Rautava P
d Clinical Research Center, Turku University Hospital , Turku , Finland ; e Department of Public Health , University of Turku , Turku , Finland ;
Kytö V
f Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku , Turku , Finland ; g Heart Center, Turku University Hospital , Turku , Finland.

MeSH

AgedAged, 80 and overCircadian RhythmFemaleFinlandHospital MortalityHospitalizationHumansIncidenceMaleMiddle AgedMyocardial InfarctionRetrospective StudiesRisk FactorsSeasons

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26679065

Citation

Sipilä, Jussi O T., et al. "Association of Daylight Saving Time Transitions With Incidence and In-hospital Mortality of Myocardial Infarction in Finland." Annals of Medicine, vol. 48, no. 1-2, 2016, pp. 10-6.
Sipilä JO, Rautava P, Kytö V. Association of daylight saving time transitions with incidence and in-hospital mortality of myocardial infarction in Finland. Ann Med. 2016;48(1-2):10-6.
Sipilä, J. O., Rautava, P., & Kytö, V. (2016). Association of daylight saving time transitions with incidence and in-hospital mortality of myocardial infarction in Finland. Annals of Medicine, 48(1-2), 10-6. https://doi.org/10.3109/07853890.2015.1119302
Sipilä JO, Rautava P, Kytö V. Association of Daylight Saving Time Transitions With Incidence and In-hospital Mortality of Myocardial Infarction in Finland. Ann Med. 2016;48(1-2):10-6. PubMed PMID: 26679065.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Association of daylight saving time transitions with incidence and in-hospital mortality of myocardial infarction in Finland. AU - Sipilä,Jussi O T, AU - Rautava,Päivi, AU - Kytö,Ville, Y1 - 2015/12/17/ PY - 2015/12/19/entrez PY - 2015/12/19/pubmed PY - 2016/12/31/medline KW - Acute coronary syndrome KW - chronobiology KW - circadian rhythm KW - circadian rhythm misalignment KW - daylight saving time KW - myocardial infarction KW - risk SP - 10 EP - 6 JF - Annals of medicine JO - Ann Med VL - 48 IS - 1-2 N2 - INTRODUCTION: Circadian rhythm disturbance increases cardiovascular risk but the effects of daylight saving time (DST) transitions on the risk of myocardial infarction (MI) are unclear. METHODS: We studied association of DST transitions in 2001-2009 with incidence and in-hospital mortality of MI admissions nationwide in Finland. Incidence rations (IR) of observed incidences on seven days following DST transition were compared to expected incidences. RESULTS: Incidence of MI increased on Wednesday (IR 1.16; CI 1.01-1.34) after spring transition (6298 patients' cohort). After autumn transition (8161 patients' cohort), MI incidence decreased on Monday (IR 0.85; CI 0.74-0.97) but increased on Thursday (IR 1.15; CI 1.02-1.30). The overall incidence of MI during the week after each DST transition did not differ from control weeks. Patient age or gender, type of MI or in-hospital mortality were not associated with transitions. Renal insufficiency was more common among MI patients after spring transition (OR 1.81; CI 1.06-3.09; p < 0.05). Diabetes was less common after spring transition (OR 0.71; CI 0.55-0.91; p = 0.007), but more common after autumn transition (OR 1.21; 1.00-1.46; p < 0.05). CONCLUSIONS: DST transitions are followed by changes in the temporal pattern but not the overall rate of MI incidence. Comorbidities may modulate the effects DST transitions. SN - 1365-2060 UR - https://www.unboundmedicine.com/medline/citation/26679065/Association_of_daylight_saving_time_transitions_with_incidence_and_in_hospital_mortality_of_myocardial_infarction_in_Finland_ DB - PRIME DP - Unbound Medicine ER -