Higher risk of myocardial infarction on Christmas Eve


  • Mary Corcoran
  • Univadis Medical News
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A new study which investigated whether national holidays or major sports events could trigger myocardial infarction (MI) has shown that the risk of MI is increased on Christmas Eve. 

Researchers examined data on 283,014 cases of MI reported to the Swedish nationwide coronary care registry, SWEDEHEART, between 1998 and 2013 to identify the exact timing of such events. The two weeks before and after a holiday and the same period one year before and after a sports event, were set as control periods.

They observed a higher risk of MI during Christmas (incidence rate ratio [IRR] 1.15; 95% CI 1.12-1.19; P<.001 the highest associated risk was observed for christmas eve ci with mis peaking about pm. more pronounced in older and sicker patients authors suggesting external triggers may play a role vulnerable individuals. per cent higher of mi on new year day which they say class="">ould be due to the effects of excess alcohol and food consumption, exposure to cold temperatures at night, or sleep deprivation on New Year’s Eve."

A higher risk of MI was also observed for Midsummer holiday. 

The findings are published in the BMJ.

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