Quiz 5, Module Sars1
5. In the table above, Epiville is divided into five residential areas: A, B, C, D, and E. Calculate the cumulative incidence of SARS (per 1,000) in each area. Cumulative incidence is calculated as follows: [# of new cases of disease / # in candidate population] over a specified period of time (Please see Aschengrau pp. 42-44).
- What is the cumulative incidence of SARS (per 1,000) in Area A?
- What is the cumulative incidence of SARS (per 1,000) in Area B?
- What is the cumulative incidence of SARS (per 1,000) in Area C?
- What is the cumulative incidence of SARS (per 1,000) in Area D?
- What is the cumulative incidence of SARS (per 1,000) in Area E?
Answer (a) —
none:
(3/14,000)*1,000=0.21 per 1,000 over a three-week period.+
[+Please note that a specified period of time is a critical element in calculating incidence.]
[+Please note that a specified period of time is a critical element in calculating incidence.]
Answer (b) —
none:
(70/53,000)*1,000=1.32 per 1,000 over a three-week period.
Answer (c) —
none:
(5/13,000)*1,000=0.38 per 1,000 over a three-week period.
Answer (d) —
none:
(8/12,000)*1,000=0.67 per 1,000 over a three-week period.
Answer (e) —
none:
(2/8,000)*1,000=0.25 per 1,000 over a three-week period.
