Key result
Living in the smallest communities in northern Sweden was associated with the lowest age-standardized morbidity and 28-day case fatality for acute myocardial infarction.
Why the study?
Does community size affect the morbidity and 28-day case fatality of acute myocardial infarction in northern Sweden?
Observational
Yes
Does community size affect the morbidity and 28-day case fatality of acute myocardial infarction in northern Sweden?
Despite a higher conventional risk factor burden, rural areas in northern Sweden have lower AMI morbidity and case fatality compared to intermediate-sized communities.
Answers are grounded in this paper and cite their sources.
Potential rural protective effects on AMI merit exploration; extends geographic disparity research but remains hypothesis-generating.
OBJECTIVES: Previous studies have shown differences in the main cardiovascular risk factors between communities of different sizes in northern Sweden, with serum cholesterol levels, systolic blood pressure and body mass index being higher, but with fewer smokers in the smallest communities. We wanted to see if there also were differences in the morbidity and 28-day case fatality in acute myocardial infarction (AMI) between communities of different sizes in this area. DESIGN: The Northern Sweden MONICA Project database of AMI was examined for the years 1985-1999 for age-adjusted morbidity and 28-day case fatality for each sex in relation to the size of the community where each case lived. RESULTS: The age standardized morbidity and 28-day case fatality were the lowest in the smallest communities where the risk factor burden previously was shown to be highest, and the highest in intermediate size communities. CONCLUSIONS: Other factors than conventional biomedical risk factors seem to either confer protection in the smallest communities or increase the AMI risk in larger communities.
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Messner et al. (2004) conducted an observational in Acute myocardial infarction (AMI). Living in small communities vs. Living in intermediate or larger communities was evaluated on Age-adjusted morbidity and 28-day case fatality. Living in the smallest communities in northern Sweden was associated with the lowest age-standardized morbidity and 28-day case fatality for acute myocardial infarction.
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