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What is a rate and why do we adjust them sometimes? How is a rate difference...

What is a rate and why do we adjust them sometimes?

How is a rate difference than a risk of disease? Which one considers time?

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Answer #1

Rate is the frequency of occurrence of a disease in a defined population.

Rates are adjusted according to age, sex, race, other demographic characters. This is because often times we need data specific for patients of a common profile. This makes the diagnosis and treatment of diseases easier. It also standardizes the information making it easier.

Risk of a disease considers time. Rate is is the frequency of occurrence whereas risk increases the likelihood of someone acquiring the disease.

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