Chapter 2: Screening & Early Detection Flashcards Preview

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Flashcards in Chapter 2: Screening & Early Detection Deck (11)
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1

Primary Prevention

Most effective tx for cancer

2

Secondary Prevention

Early detection
Measures taken to identify potential for development or existence of a disease in asx ppl

3

Tertiary Prevention

Effective therapy

4

Diagnosis

Clinical problem solving process applied to asymptomatic individuals who either screen positive or present symptoms

5

Incidence

# of new cases identified in a specified population in a defined period (generally 1 yr)

6

Prevalence

% of all individuals with disease at a given point in time in a specified population

- often expressed as proportion of disease cases per 100,000 persons

7

Validity

accuracy of a screening test

8

Validity is measured by _____ & ______

Sensitivity, Specificity

9

Sensitivity

measure of the tests ability to correctly identify persons with disease (true +)

ex) 100% sensitivity = no false -

10

Specificity

measure of the test's ability to correctly identify persons who do not have the disease in the group being screened (test will not be + in anyone who does not have the cancer)

ex) 100% specificity = no false +

11

Predictive value

1) + predictive value
2) - predictive value

1) % of persons who screen + who actually have the disease
2) % of persons who screen - who do not have disease