The individual risk score is a simple
tool for assessing the probability of developing a first
major cardiovascular event (myocardial
infarction or
stroke) over the following 10 years,
when the values of
eight risk factors are known: gender, age, diabetes, smoking habit,
systolic blood pressure, serum cholesterol, HDL cholesterol and the
prescription of anti-hypertensive medications.
The risk assessment provided by the risk score is more accurate than
that resulting from cardiovascular risk chart. Actually, the
individual risk score:
- takes into account two more risk factors, HDL-cholesterol
and anti-hypertensive therapy, which is additional to blood
pressure, since the blood pressure value registered is the result of
treatment. Anti-hypertensive therapy is also an indicator of
longstanding hypertension.
- risk charts are based on global absolute risk classes
calculated for categories of risk factors and take into account
ranges of values of total serum cholesterol and blood pressure. The
individual risk score, instead, uses continuous values of total
serum cholesterol, serum HDL cholesterol, age and blood pressure and
provide a more precise estimation of cardiovascular risk
- the individual risk score can be applied to persons ages
35-69 years (the chart covers the age range 49-69 instead).
Therefore, the risk value may be slightly
different depending on which tool is used.
The individual risk score:
- is not a 'do-it-yourself' tool
- is valid if the risk factors are measured by
standardized methods
- can be applied to men and women ages 35-69 years who have
no history of previous coronary or cerebrovascular events
- cannot be applied to pregnant women
- is not applicable in the case of extreme risk factors:
systolic arterial pressure greater than 200 mmHg or lower than 90
mmHg, total serum cholesterol value greater than 320 mg/dl or lower
than 130 mg/dl, HDL cholesterol greater then 100 mg/dl or lower than
20 mg/dl.
In order to assess cardiovascular risk,
glycemia and cholesterol values deriving from clinical tests are
usable only if no more than three months have passed since last
measurements.
It is highly recommended to assess
cardiovascular risk with the individual risk score at least:
- every six
months in people at high cardiovascular risk (probability of
experiencing a first cardiovascular event equal to or higher than
20%)
- every year
in people at cardiovascular risk who need to adopt an healthy
lifestyle (probability of experiencing a first cardiovascular event
equal to or higher than 3% and lower than 20%)
- every five
years in people at low cardiovascular risk (probability of
experiencing a first cardiovascular event lower than 3%).
To ensure the test is used correctly, answer the following
questions taking care to record individual values as indicated:
Important notice:
Risk assessment
gives no indication to treatment.
It is recommended to consult a physician for advice or
therapy.