Disease Condition Chart

Disease Condition Chart

RISK FACTOR ELEVATED STROKE RISK INCIDENCE IN THE POPULATION
Asymptomatic Carotid Stenosis Individuals with atherosclerosis, over 5 years have 11% risk for stroke. No accurate estimate of incidence.
Atrial Fibrillation Individuals with atrial fibrillation have 3-5 times greater risk for ischemic stroke. 3% of population aged 45+ has atrial fibrillation 5.9% by age 65 and over. After age 55, the incidence of atrial fibrillation doubles with each decade of life.
Cholesterol High cholesterol:
Doubles the risk of ischemic stroke. Increases the risk of heart disease that is an independent risk factor for stroke.

Nearly half of all Canadians have some type of problem with elevated cholesterol. Screening for elevated cholesterol should be done for anyone with:

  • heart disease, or diabetes, hypertension
  • men aged 40 or older
  • women who are post menopausal or over age 50
  • smokers
  • abdominal obesity (waist measurement of more than 102 cm for men, and more than 88 cm for women)
Coronary Heart Disease (CHD) or Ischemic Heart Disease HD:
Doubles the risk of ischemic stroke and Increases the risk of developing atherosclerosis and increases the risk for blood clots.		 10% of Ontarians aged 45 and over, report some form of heart disease.
Diabetes Diabetics have 1.5-2.5 greater risk for ischemic stroke.
Diabetes is strongly correlated with high blood pressure, high cholesterol and being overweight.		 About 7% of Ontarians over age 45 have been identified as being diabetic.
Family History of Stroke and/or CVD There is support for an inheritable component to stroke. Having a parent or sibling with stroke prior to age 65, increases risk of stroke by 70%.
High Blood Pressure (HBP) Untreated HBP increases the risk of stroke 3-4 times.
Treatment of HBP can reduce strokes by 38% and fatal strokes by 40%.		 22% of Canadian adults have HBP and HBP appears to increase with age, weight, alcohol use, diabetes. 33% are not treated and not controlled.
Previous Stroke Approximately 25% of stroke survivors have another stroke within 5 years. Over 20,000 strokes each year in Ontario and close to 115,000 people living with stroke.
Transient Ischemic Attack (TIA)

Risk of stroke for individuals with TIA:

  • 5% within 48 hours
  • 8% within 1 month
  • 12% within 1 year and
  • up to 30% within 5 years.
Although it is difficult to estimate the incidence of TIA's since possibly only 10-25% of patients who experience a TIA are admitted to hospital, the current estimate for the Ontario population is 6,300 per year.

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Primer to Action: Social Determinants of Health, is an electronic resource for health professionals, lay workers, volunteers and activists from different sectors to understand and influence how the social determinants of health impact chronic disease

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