Day of the week and ischemic stroke: Is it Monday high or Sunday low?

The study aim was to examine the incidence of ischemic stroke (IS) by day of the week and its relationship with age, sex, and socioeconomic status (SES). A total of 12,801 IS events in men and women aged 25 to 99 years was recorded in a population-based stroke register (FINMONICA), which was functio...

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Bibliographic Details
Published in:Stroke (1970) 2004-09, Vol.35 (9), p.2089-2093
Main Author: JAKOVLJEVIC, Dimitrije
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Biological and medical sciences
Brain Ischemia - epidemiology
Educational Status
Female
Finland - epidemiology
Humans
Incidence
Income
Male
Medical sciences
Middle Aged
Neurology
Registries - statistics & numerical data
Retrospective Studies
Socioeconomic Factors
Time Factors
Vascular diseases and vascular malformations of the nervous system
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Summary:The study aim was to examine the incidence of ischemic stroke (IS) by day of the week and its relationship with age, sex, and socioeconomic status (SES). A total of 12,801 IS events in men and women aged 25 to 99 years was recorded in a population-based stroke register (FINMONICA), which was functioning in Finland from 1982 to 1992. We analyzed the weekly variation in IS incidence by pooling the data and stratifying by sex and age. Taxable income and level of education were used as indicators of SES. We observed a significant weekly variation in IS occurrence, but the analysis by age group demonstrated a difference by weekday only in the age group 60 to 74, both in men and women (P59 years of age. No Monday excess was observed in persons with high SES. Because the incidence of IS is much higher in persons with low SES than in those with high SES, the Monday excess in persons with low SES is of substantial public health interest. This finding may suggest reasons for the higher IS incidence in persons with low socioeconomic positions and open up some possibilities for prevention.
ISSN:0039-2499
1524-4628
DOI:10.1161/01.STR.0000137763.88044.28