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Transcript
Introduction to Health Care and
Public Health in the US
Public Health (Part 1)
Lecture b
This material (Comp1_Unit7b) was developed by Oregon Health and Science University funded by the Department of Health
and Human Services, Office of the National Coordinator for Health Information Technology under Award Number
IU24OC000015.
Public Health (Part 1)
Learning Objectives
 Discern the main differences and similarities between
public and private health (Lecture a)
 Delineate the historic timeline and achievements of
public health in the US (Lecture a)
 Define and discuss key terminology of public health
(Lecture b)
 Illustrate the general organization of public health
agencies and public health data flow (Lecture b)
 Evaluate and explain the impact and value of public
health (Lecture c)
Health IT Workforce Curriculum
Version 3.0/Spring 2012
Introduction to Health Care and Public Health in the US
Public Health, Part 1
Lecture b
2
Selected Public Health Terminology
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Endemic – disease native to an area or population
Epidemic – disease affecting numerous people at the same time
Epidemiology – study of incidence, distribution, and control of disease in a
population
Incidence – the number of new events/cases in a population. Requires a specified
time period and a defined population.
Intervention – in public health, refers to an action/program that is meant to benefit
the health of a population. Examples might include legislation, education, or service
delivery.
Morbidity – proportion of disease/illness in a population; relative incidence of a
disease
Mortality – number, frequency, or proportion of deaths in a population
Outbreak – sudden rapid development of a disease in a population
Pandemic – an extensive epidemic, affecting a very large region such as a country,
continent, or the world
Prevalence - proportion of a population with a specified condition/illness. Requires a
specified time period or point in time.
Relative risk – several meanings, including: risk of an outcome in those exposed to a
disease versus those not exposed; the calculated odds ratio resulting from a study.
Risk – odds of an event occurring; as in, a one in one hundred chance, or risk, of
dying.
Health IT Workforce Curriculum
Version 3.0/Spring 2012
Introduction to Health Care and Public Health in the US
Public Health, Part 1
Lecture b
3
Public Health Expenditures
The public perception of public health is often restricted to highly visible aspects such as
communicable disease programs, and in recent years, bioterrorism surveillance.
However, communicable disease surveillance is a very small portion of the public health
arena. In the US, the mandatory programs Medicare and Medicaid consume the majority
of the HHS budget.
7.2 Chart: FY 2011 President’s Budget for HHS
Health IT Workforce Curriculum
Version 3.0/Spring 2012
Introduction to Health Care and Public Health in the US
Public Health, Part 1
Lecture b
4
Core Areas of Public Health
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Behavioral Science/Health Education
Biostatistics
Emergency Medical Services
Environmental Health
Epidemiology
Health Services Administration/Management
International/Global Health
Maternal and Child Health
Nutrition
Public Health Laboratory Practice
Public Health Policy
Public Health Practice
Health IT Workforce Curriculum
Version 3.0/Spring 2012
Introduction to Health Care and Public Health in the US
Public Health, Part 1
Lecture b
5
Organization of Public Health in the US
• Three general levels of public health –
local, state, federal
– Local health departments
– State health departments
– CDC and other federal agencies
• Most – but not all – states are associated
with a network of local or county health
departments
Health IT Workforce Curriculum
Version 3.0/Spring 2012
Introduction to Health Care and Public Health in the US
Public Health, Part 1
Lecture b
6
Public Health Roles
• Public Health is multi-disciplinary, improving population
health through many roles
• Some examples include
– Education – such as promotion of healthy lifestyles
– Policy – such as advocating for legislative funding
– Health care services – such as public health nursing, clinics; providing
vaccinations; maternal and child healthcare
– Regulation – such as mandating state reportable conditions for
laboratories, health care providers, veterinarians
– Laboratory services – public health laboratories provide sophisticated
testing for biological and environmental samples
– Monitoring and surveillance – such as tracking occurrences of
communicable diseases or elevated blood lead levels
Health IT Workforce Curriculum
Version 3.0/Spring 2012
Introduction to Health Care and Public Health in the US
Public Health, Part 1
Lecture b
7
Public Health Laws and Policies
Disease Reporting Regulations
• States mandate certain diseases and conditions to be
reportable in their jurisdictions – laboratories, health care
providers, and veterinarians are then required to report
these conditions to public health
• Certain diseases are termed Nationally Notifiable
Diseases (NND). States and CDC together determine
which diseases should be on this list
• Since 1961, CDC has collected and published NND
data. Reporting of de-identified NND data to the CDC is
technically voluntary, but is quite complete
• NND are reported weekly to the CDC by means of the
National Electronic Telecommunications System for
Surveillance (NETSS)
Health IT Workforce Curriculum
Version 3.0/Spring 2012
Introduction to Health Care and Public Health in the US
Public Health, Part 1
Lecture b
8
Examples of Nationally Notifiable
Diseases, 2010
• Infectious Conditions
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Anthrax
Diphtheria
Giardiasis
Hepatitis
Lyme disease
Malaria
Measles
• Non-Infectious Conditions
– Cancer
– Elevated blood lead levels
– Pesticide-related illness
(CDC, 2010)
Health IT Workforce Curriculum
Version 3.0/Spring 2012
Introduction to Health Care and Public Health in the US
Public Health, Part 1
Lecture b
9
Generalized Public Health Data Flow
7.3 Chart: The generalized flow of public health data.
Health IT Workforce Curriculum
Version 3.0/Spring 2012
Introduction to Health Care and Public Health in the US
Public Health, Part 1
Lecture b
10
Public Health (Part 1)
Summary – Lecture b
• Key terminology
• Organization and funding in the US
• Roles
Health IT Workforce Curriculum
Version 3.0/Spring 2012
Introduction to Health Care and Public Health in the US
Public Health, Part 1
Lecture b
11
Public Health (Part 1)
References – Lecture b
References
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Nationally Notifiable Infectious Conditions - United States 2010. (2010). Retrieved December 6,
2011, from Centers for Disease Control and Prevention - Office of Surveillance, Epidemiology, and
Laboratory Services website: http://www.cdc.gov/osels/ph_surveillance/nndss/phs/infdis2010.htm.
Charts, Tables, Figures
7.2 Chart: Advancing the Health, Safety, and Well-Being of Our People - FY 2011 President’s Budget
for HHS. (2011). Retrieved December 6, 2011, from Department of Health and Human Services
website: http://dhhs.gov/asfr/ob/docbudget/2011budgetinbrief.pdf
7.3 Chart: The generalized flow of public health data – Created by Magnuson, JA (2011).
Health IT Workforce Curriculum
Version 3.0/Spring 2012
Introduction to Health Care and Public Health in the US
Public Health, Part 1
Lecture b
12