8: No. 6, November 2011
The Incidence and Health Economic Burden of Ischemic Amputation in Minnesota, 2005-2008
Three maps depict the state of Minnesota with county borders. The first
map displays the incidence of lower limb ischemic amputation; the second,
coronary heart disease (CHD) mortality; and the third, stroke mortality.
The legend shows the quartile ranking of the outcome displayed on each
map; quartile 1 represents the lowest incidence and quartile 4 represents
the highest incidence. Data for counties with fewer than 10 cases over
4 years are suppressed, and data for counties with 11 to 20 cases over 4
years are shown but are noted as unstable.
In general, the highest lower limb ischemic amputation incidence and
highest CHD and stroke mortality rates are concentrated in counties in the
northern half of Minnesota and in rural counties. The pattern is
similar, but not entirely overlapping, for all 3 outcomes.
Figure. Lower limb ischemic amputations, coronary heart
disease (CHD) mortality, and stroke mortality per 100,000 by Minnesota county,
2005-2008. Data for lower limb ischemic amputations obtained from Minnesota
Hospital Uniform Billing Claims Data; Health Economics Program, Minnesota
Department of Health; and the Minnesota Hospital Association. Data for CHD
mortality obtained from Minnesota Department of Health Center for Health
Statistics and International Classification of Diseases, 10th revision (ICD-10)
codes I00-I09, I11, I13,and I20-I51. Data for stroke mortality obtained from
Minnesota Department of Health Center for Health Statistics and ICD-10 codes I60-I69.
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