Cardiovascular Health Indicator
Measure: Stroke Death Rate
|Indicator||Date of Most Recent Measure||Current Measure||Trend|
|Age-adjusted mortality rate due to stroke||2017||31.9
- Stroke is the sixth-leading cause of death in Minnesota, responsible for 5% of all deaths in 2017.
- Minnesota’s stroke death rate is about 15% lower than the United States average in 2017, and ranks 11th lowest of the fifty states and District of Colubmbia.
- In Minnesota, African Americans/Africans and Asians/Pacific Islanders die from stroke at higher rates than every other race and ethnic group, more than 40% higher than whites.
- Stroke deaths have been dropping for decades, but this trend seems to have stopped, and may have reversed since 2007.
As shown in Table 1 below, the death rate due to stroke has declined since 2003, and it is now the sixth-leading cause of death in Minnesota. As recently as 2010, it was the third-leading cause of death in the state, but has fallen below Accidental Injury, Chronic Obstructive Pulmonary Disease, and Alzheimer’s Disease, all of which have rising death rates. The age-adjusted death rate for stroke for men and women is similar. More women die of stroke than men, but usually at an older age, which explains the similar death rate. Total stroke deaths were lowest in 2009 and have risen slightly in the years since. Chart 1 shows the pattern in total number of deaths and for women (green) and men (blue) since 2009. Even though the number of deaths has increased slightly, death rates have remained relatively stable. This can be explained by our aging population, with the number of older people who are at a risk of dying from stroke also increasing each year.
Table 1: Total Deaths and Death Rate due to Stroke for all Minnesotans and by sex, 2003-2017
|Year||Total Number of Deaths||Total Age-Adjusted Death Rate (per 100,000)||Number of Deaths, Females||Age-Adjusted Death Rate (per 100,000 Females)||Number of Deaths, Males||Age-Adjusted Death Rate (per 100,000 Males)|
Chart 1: Total Deaths due to Stroke for all Minnesotans and by sex, 2003-2017
Despite Minnesota’s overall lower stroke death rate compared to the United States (15% lower in 2017), there are large disparities in the state. As shown in Chart 2 and Table 2, the death rate due to stroke is highest in African-American/African and Asian/Pacific Islander communities in Minnesota and lowest in Hispanic communities. The last column of Table 2 shows a rate ratio, which compares two rates to describe how much one group is impacted compared to another. Any number larger than 1 means that the group of interest is higher than the comparison group. Any number smaller than 1 means the group of interest is lower than the comparison group. African-American/Africans and Asians/Pacific Islanders die from stroke at a rate 1.41 times higher than Whites, while stroke death rates for American Indians are 1.19 times higher than Whites. Stroke death rates for Hispanic Minnesotans are 25% lower than for Whites.
Chart 2: Death Rate due to Stroke by Race and Ethnicity, 2013-2017
Table 2: Total Deaths and Death Rate due to Stroke by Race and Ethnicity, 2013-2017
|Race/Ethnicity||Total Deaths, 2012-2016||Annual Age-Adjusted Death Rate (per 100,000), 2012-2016||Rate Ratio, compared to White|
The number of deaths due to stroke increases in older age groups. Table 3 shows the number of deaths and death rate due to stroke over the three most recent five-year time periods. Over that 15 year period, the largest declines in death rates have been for Minnesotans aged 35-44 and 65-84, as shown in Chart 3. For Minnesotans aged 45-64 and 85 and older, the declines have only been about half as large.
Table 3: Total Deaths and Death Rate due to Stroke by Age Group, 2003-2017
|Age Group (years)||Number of Deaths 2003-2007||Crude Death Rate (per 100,000), 2003-2007||Number of Deaths, 2008-2012||Crude Death Rate (per 100,000), 2008-2012||Number of Deaths, 2013-2017||Crude Death Rate (per 100,000), 2013-2017||Change over 15 years|
|85 and Over||5,814||1,155.7||5,412||996.8||5,651||957.8||-17%|
Chart 3: Percent change in Death Rate due to Stroke by Age Group, from 2003-2007 to 2013-2017
There are two main types of stroke. About 80% of stroke events are ischemic strokes which occur when a clot blocks a blood vessel in the brain. A hemorrhagic stroke occurs when a blood vessel ruptures in the brain. Table 4 shows that death rates due to ischemic strokes have dropped by approximately 40% in the last 15 years, largely due to improvements in treatments. The number of hemorrhagic stroke deaths has remained relatively stable over the last 15 years, with a smaller decline in the death rate (down 26%). Chart 4 shows that all of the decline in stroke deaths over the last 15 years occurred due to a reduction in ischemic stroke deaths that happened through about 2006. Since then, deaths have remained fairly steady.
Table 4: Total Deaths and Death Rate due to Types of Stroke, 2003-2017
|Year||Number of Ischemic Stroke Deaths||Annual Age-Adjusted Ischemic Stroke Death Rate (per 100,000)||Number of Hemorrhagic Stroke Deaths||Annual Age-Adjusted Hemorrhagic Stroke Death Rate (per 100,000)|
Chart 4: Number of Deaths due to Hemorrhagic and Ischemic Stroke, 2003-2017
- Minnesota Vital Statistics Interactive Queries
These data are population based and include all deaths in Minnesota regardless of where the event occurred. Users can group data by cause of death, age, sex, race, ethnicity, county, and year.
- CDC Wonder Online Mortality Database
These data are population based and include all deaths and allows users to look at multiple causes of death. Users can group data by cause of death, age, sex, race, ethnicity, county, year, and some additional characteristics. Minnesota can be compared against other states.
- Interactive Atlas of Heart Disease & Stroke
Online mapping tool from CDC with health indicators (including mortality and hospitalizations), risk factors, social and economic data, health care delivery, insurance, and health care costs data for states and counties. Some census tract data is also available.
Annual death records from 2003 to the present were obtained from the Minnesota Department of Health Center for Health Statistics.
Since 1999, stroke deaths are identified as the underlying cause of death on death certificates as ICD-10: I60-I69. This includes ischemic stroke, hemorrhagic stroke, and other cerebrovascular diseases.