AUGUST 30, 2004
VOLUME 1 NO. 15
 

Strokes lay low on Sundays but are back
with a vengeance on Mondays

Poor, old patients are hit hard on Mondays. But most are safe from SAH any day of the week


Everyone dreads Mondays. They mark the start of another workweek and worse still the end of the weekend. But Mondays can be more than just a drag, they can be downright dangerous. A study in the July 22 electronic issue of Stroke documented an increased risk of ischemic stroke on Mondays, particularly among the economically disadvantaged elderly in Finland. Another article in the same issue reported that in highly socialist Sweden, death due to subarachnoid hemorrhaging (SAH) has declined from 1985 to 2000. Taken together, these studies lend support to the health value of a state-subsidized social care network like Canada's.

The first study, headed by Dr Jakovljevic Dimitrije of the National Public Health Institute in Helsinki, Finland, examined records of 12,801 ischemic strokes compiled in a population-based registry between 1982 and 1992. The incidence of stroke was examined by the day of the week, age, sex and socioeconomic status (based on taxable income and level of education).

The incidence of strokes bottomed out on Sundays, regardless of the other factors. Variation in occurrence was noted during the week, especially among people of low socioeconomic status aged 60 to 74. These folks were hit with strokes almost 14% below the weekly average on Sundays. But, the next day, their luck ran out, when their incidence of stroke was a whopping 18% higher than the Monday average. In contrast, wealthier and better-educated Finns did not exhibit this Monday spike. Why do poorer Finns get short-changed? The link isn't completely clear but the researchers conclude that social status is definitely a contributing factor.

Dr Dimitrije and his colleagues wrote that the finding has "substantial public health interest" and will "open up some possibilities for prevention."

In the second study, Birgitta Stegmayr, PhD and her colleagues at Ume? University in Sweden reported on their review of 984 cases of SAH from 1985 to 2000. They found that the number of men who suffered such rupturing of the blood vessels dropped by just over three percent each year. The trend didn't hold true for women, however, the death rate from the hemorrhaging dropped in women by nearly four percent annually.

Like Canada, Finland and Sweden have an extensive social support network. This support may contribute to the longterm increased health of some of the subjects who were studied. Still, as everywhere else, being lower down on the socioeconomic ladder carries a burden.

Although ischemic stroke cuts off blood flow to the brain of over 40,000 Canadians each year, no similar investigation to the Finnish study of weekly occurrence has been done in Canada ? not yet anyway.

 

 

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