Question

A survey is initiated in order to understand the relationship between hypertension and diabetes. The investigators organized the results based on exposure status (those with and without hypertension) and disease status (diabetes or not). Consider the cases of diabetes: These are A) Prevalent cases of diabetes B) Incident cases of diabetes. C) Both prevalent and incident cases. D) None of the above

Answer 1

Incident cases:----Incident cases are those that are newly diagnosed ,ideally those in whom the disease has just developed with the disease of interest.

Prevalent cases :----Prevalent cases are those whose disease developed or was diagnosed before they were identified for the study.

here another facts about incident cases ncident cases

are all individuals who change in status from non disease to disease or from one state of a health outcome to another over a specific period of time. In other words, “incidence” refers to the occurrence of new cases.

so as we can see in the survey they are checking people having diabetes or not and they are not verifying the newly induced diabetes in the people so the diabetes cases are considered as prevalent .

So it is a (A)   prevalent case of diaetese