What is the definition of “Prevalence”?*1 pointThe total number of cases of a disease or condition.Number of current cases for a particular condition over the past 12 months.Number of new cases for a particular condition over the past 12 months.Number of new cases for a particular condition.

What is the definition of “Incidence”?*1 pointNumber of current cases for a particular condition over the past 12 months.Number of new cases for a particular condition over the past 12 months.Number of new cases for a particular condition.The total number of cases of a disease or condition.

What is the primary difference between risk and prevalence?1 pointPrevalence describes the number of diseased persons present in the population divided by the number of persons in the population in a specified time period, whereas risk describes the number of newly diseased person present in the population divided by the number of at-risk persons in the population in a specified time period. Prevalence describes the number of diseased person present in the population in a specified time period whereas risk describes the number of people who die from the disease in the population in a specified time period.Risk describes the number of diseased persons present in the population divided by the number of persons in the population during a specified time period, whereas prevalence describes the number of newly diseased person present in the population in a specified time period divided by the number of at- risk persons in the population.

Incidence rate is defined most accurately as the number ofGroup of answer choicesnew cases of a specific problem.cases of a specific problem.cases not experiencing a specific problem.new cases not experiencing a specific problem.

What proportion of men have the disease at any time during the period of study (this is the prevalence among men)? What proportion of men without disease at baseline develop the disease during the period of study (this is the incidence among men)?

Etiology of a disease is /are Question 2AnswerSymptoms of diseases Signs of diseases Risk factors that are more common among diseased than nondiseased  persons.The cause or causes of a disease