For those with a cholesterol level between 200-270 mg/dL, there were 5 new cases of coronary heart disease during the subsequent year. The one-year cumulative incidence was per 1,000 persons, rounded to one decimal place.

the correct answer is 0,5%

Explanation:

The incidence rate is calculated as follows:

number of people with a price (new cases) / number of people with a total of this value we multiply it by 100 since we are talking about a percentage.

Incidence rates always refer us to new cases of a pathology at a certain time in a given population. This indicates the impact of the health problems that said population has at that precise moment.

At a statistical level, together with prevalence, they are one of the most commonly investigated data in the face of community pathologies.

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!