16 Public Health Practice

Question 1

5 core functions of public health in Canada

Answer 1

Health protection
Disease and injury prevention
Health promotion
Surveillance
Population health assessment

Question 2

What is surveillance?

Answer 2

Ongoing systematic collection, analysis and interpretation of health data
Communicated in a timely manner
Contributes to program planning, delivery, management

Question 3

What is population health assessment?

Answer 3

Measuring, monitoring, reporting on a population’s health
Collecting info for collaborative development/maintenance of population health profiles, identification of challenges and opportunities, and monitoring of public health practice impacts

Question 4

5 ways we can measure health

Answer 4

Mortality
Life Expectancy
Potential years of life lost
Morbidity from disease
Heath adjusted life expectancy

Question 5

Which type of incidence uses person-time years?

Answer 5

The incident rate (not cumulative incidence)

Question 6

Risk difference

Answer 6

Incident rate in exposed - incident rate in unexposed

Same as exposed attributable risk

Question 7

Relative risk

Answer 7

incident rate in exposed divided by incident rate in unexposed

Question 8

Exposed attributable fraction

Answer 8

(Incident rate in exposed - incident rate in unexposed) / incident rate in exposed
Answers the question: what proportion of the risk in the exposed persons is due to the exposure?

Question 9

Population attributable fraction

Answer 9

(Incident rate in total population - incident rate in unexposed) / incident rate in total population
Demonstrates the impact of an exposure on a whole population
Answers the question: what proportion of the risk in the whole population is due to the exposure?