Among those not known to have cancers previously, nearly 450 cases are diagnosed in the U.S. per 100,000 person-years. This statement describes the ____________________ of cancer in the U.S. a. Lifetime prevalence b. Incidence proportion c. Incidence rate aka incidence density d. Period prevalence
Among those not known to have cancers previously, nearly 450 cases are diagnosed in the U.S. per 100,000 person-years. This statement describes the ____________________ of cancer in the U.S. a. Lifetime prevalence b. Incidence proportion c. Incidence rate aka incidence density d. Period prevalence
Phlebotomy Essentials
6th Edition
ISBN:9781451194524
Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Chapter1: Phlebotomy: Past And Present And The Healthcare Setting
Section: Chapter Questions
Problem 1SRQ
Related questions
Question
Among those not known to have cancers previously, nearly 450 cases are diagnosed in the U.S. per 100,000 person-years. This statement describes the ____________________ of cancer in the U.S.
| a. |
Lifetime prevalence |
|
| b. |
Incidence proportion |
|
| c. |
Incidence rate aka incidence density |
|
| d. |
Period prevalence |
Expert Solution
Step 1
C. Incidence rate aka incidence density
INCIDENCE
Incidence rate is defined as the number of new cases occurring in a defined population during a specified period of time.
Formula of incidence =
Number of new cases of disease during a given time period ÷ population a risk during that period × 1000
Indicators for incidence
- New cases
- Specific period of time
- Population at risk
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