CHS 473 Lect 5 Intro to study 0.5 pts Question 1 Which of the following accurate
ID: 240612 • Letter: C
Question
CHS 473 Lect 5 Intro to study 0.5 pts Question 1 Which of the following accurately describes a difference between passive and active surveillance? O Passive surveillance is more expensive, but will more thoroughly count occurrences of disease than active O Cases of illness are more likely to be missed in passive surveilance, while identification of cases using active o Passive surveilance involves hiring staff to discover cases of illness whereas active surveillance involves surveillance are more likely to be complete. asking physicians and nurses to report cases of illnesses. O Active surveillance involves awarding participation incentives to reporting parties, in passive surveillance incentives are not awarded to reporting parties. 0.5 pts Question 2 (Number of people with a certain disease) Number of people in the population at that time) is the definition of what measure? O Cumulative Incidence OBoth Prevalence and Cumulative Incidence O PrevalenceExplanation / Answer
1.The following accurately describes the difference between passive and active surveillance;
Cases are more likely to be missed in passive surveillance, while identification of cases using active surveillance is more likely to be complete. (As passive systems generally tend to under-report disease frequency)
2.Number of people with certain disease/Number of people in the population at that time
Prevalence