Which of the following statements are true about the incidence of asthma?
1) The prevalence has increased significantly over the past 20 years in the United States.
2) The mortality has remained the same over the past 20 years in the United States.
3) Researchers have determined the causes of asthma and are working on a vaccine.
4) Diagnosis of asthma is done in a physician's office following an extensive clinical assessment.

Question

Quizplus · Accepted Answer

Statement 1 is true, as the prevalence of asthma has indeed increased in the past 20 years. Statement 2 is false, as the mortality rates for asthma have actually decreased over the same time period. Statement 3 is false, as the causes of asthma are not yet fully understood, and there is no vaccine available for it. Statement 4 is partially true, as a diagnosis of asthma usually involves a clinical assessment, but it can also involve lung function tests and medical history.

Which of the Following Statements Are True About the Incidence