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The time of sunrise and the number of hours with daylight may influence the diurnal rhythm of acute heart attack mortality.
Int J Cardiol. 2010 Apr 01; 140(1):118-20.IJ

Abstract

We investigated whether the time of sunrise and the number of daylight hours have an effect on the seasonality, or the daily rhythm of heart attack mortality. We analyzed retrospectively data of patients admitted to hospitals with the diagnosis of heart attack (n=32,329) and patients who deceased of a heart attack (n=5142) between January 1, 2004 and December 31, 2005 in Hungary. Heart attack mortality was highest during winter, while lowest number of events was recorded during summer . The daily peak of diurnality was between 6:00 am and 12:00 pm (33.77%). A positive correlation was found between the time of sunrise, time of sunset and the mortality caused by myocardial infarction (p<0,01). In the analysis of the number of daylight hours and the heart attack mortality we found a negative correlation (r=-0.105, p<0.05). No significant difference was found between sexes and different age-groups in heart attack mortality. Our data suggest, that the occurrence and the mortality of heart attack may be related to the time of sunrise and the number of daylight hours.

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Authors

Kriszbacher I
No affiliation info available
Bódis J
No affiliation info available
Boncz I
No affiliation info available
Koppan A
No affiliation info available
Koppan M
No affiliation info available

MeSH

AdultCircadian RhythmFemaleHumansMaleMiddle AgedMyocardial InfarctionPhotoperiodSeasons

Pub Type(s)

Letter

Language

eng

PubMed ID

19081153

Citation

Kriszbacher, Ildikó, et al. "The Time of Sunrise and the Number of Hours With Daylight May Influence the Diurnal Rhythm of Acute Heart Attack Mortality." International Journal of Cardiology, vol. 140, no. 1, 2010, pp. 118-20.
Kriszbacher I, Bódis J, Boncz I, et al. The time of sunrise and the number of hours with daylight may influence the diurnal rhythm of acute heart attack mortality. Int J Cardiol. 2010;140(1):118-20.
Kriszbacher, I., Bódis, J., Boncz, I., Koppan, A., & Koppan, M. (2010). The time of sunrise and the number of hours with daylight may influence the diurnal rhythm of acute heart attack mortality. International Journal of Cardiology, 140(1), 118-20. https://doi.org/10.1016/j.ijcard.2008.11.019
Kriszbacher I, et al. The Time of Sunrise and the Number of Hours With Daylight May Influence the Diurnal Rhythm of Acute Heart Attack Mortality. Int J Cardiol. 2010 Apr 1;140(1):118-20. PubMed PMID: 19081153.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The time of sunrise and the number of hours with daylight may influence the diurnal rhythm of acute heart attack mortality. AU - Kriszbacher,Ildikó, AU - Bódis,József, AU - Boncz,Imre, AU - Koppan,Agnes, AU - Koppan,Miklós, Y1 - 2008/12/09/ PY - 2008/05/06/received PY - 2008/11/01/accepted PY - 2008/12/17/entrez PY - 2008/12/17/pubmed PY - 2010/6/22/medline SP - 118 EP - 20 JF - International journal of cardiology JO - Int J Cardiol VL - 140 IS - 1 N2 - We investigated whether the time of sunrise and the number of daylight hours have an effect on the seasonality, or the daily rhythm of heart attack mortality. We analyzed retrospectively data of patients admitted to hospitals with the diagnosis of heart attack (n=32,329) and patients who deceased of a heart attack (n=5142) between January 1, 2004 and December 31, 2005 in Hungary. Heart attack mortality was highest during winter, while lowest number of events was recorded during summer . The daily peak of diurnality was between 6:00 am and 12:00 pm (33.77%). A positive correlation was found between the time of sunrise, time of sunset and the mortality caused by myocardial infarction (p<0,01). In the analysis of the number of daylight hours and the heart attack mortality we found a negative correlation (r=-0.105, p<0.05). No significant difference was found between sexes and different age-groups in heart attack mortality. Our data suggest, that the occurrence and the mortality of heart attack may be related to the time of sunrise and the number of daylight hours. SN - 1874-1754 UR - https://www.unboundmedicine.com/medline/citation/19081153/The_time_of_sunrise_and_the_number_of_hours_with_daylight_may_influence_the_diurnal_rhythm_of_acute_heart_attack_mortality_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0167-5273(08)01170-4 DB - PRIME DP - Unbound Medicine ER -