Chapter 5: Sources of Data for Use in Epidemiology

Question 1

What is record linkage?

Answer 1

the joining of data about a single entity from 2 or more sources. An advantage would be the ability to augment research data for descriptive and analytic studies in order to explore specific health outcomes
Ex: employment records and mortality data

Question 2

What is public health surveillance?

Answer 2

the ongoing systemic collection, analysis, interpretation, and dissemination of health data

Question 3

Screening?

Answer 3

the application of various tests and procedures to identify suspected cases of a disease

Question 4

Multiphasic screening?

Answer 4

the administration of 2 or more screening tests during a single screening program. One of the goals is secondary prevention through early detection of diseases.

Question 5

What is a registry?

Answer 5

a centralized database for the collection of info about a disease. Widely used for the compilation of statistical data on cancer, etc.

Question 6

What is generalizability?

Answer 6

Also called external validity. The ability to find apply the findings of a study to the pop. that did not participate in the study

Question 7

What V’s characterize big data?

Answer 7

• Variety
• Volume
• Velocity

Question 8

What is data perturbation?

Answer 8

the process of modifying identifying characteristics of data to protect the privacy of individual respondents

Question 9

Representativeness?

Answer 9

the degree to which a sample resembles a parent population

Question 10

What is data sharing?

Answer 10

the voluntary release of info by 1 investigator/institution to another for purposes of scientific research