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Public health nurses (PHNs) work in schools, homes, clinics, jails, shelters, out of mobile vans and dog sleds. They work with communities, the individuals and families that compose communities, and the systems that impact the health of those communities. Regardless of where PHNs work or whom they work with, all public health nurses use a core set of interventions to accomplish their goals. Interventions are actions that PHNs take on behalf of individuals, families, systems, and communities to improve or protect health status.
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Public Health Interventions
Applications for Public Health Nursing Practice














March 2001












Minnesota Department of Health
Division
of
Community
Health
Services
Public
Health
Nursing
Section



Public Health
Interventions
Applications for Public Health
Nursing Practice
March 2001
Public Health Nursing Practice for the 21st Century
Project Director: Mary Rippke, RN, MA
Project Coordinator: Laurel Briske, RN, MA, CPNP
Project Staff: Linda Olson Keller, RN, MS, CS, and
Sue Strohschein, RN, MS
Administrative Assistant: Jill Simonetti
Development of this document was supported by federal grant 6 D10 HP 30392, Division
of Nursing, Bureau of Health Professions, Health Resources and Service Administration,
United States Department of Health and Human Services.
Minnesota Department of Health
Division of Community Health Services
Public Health Nursing Section

Acknowledgments
Public Health Interventions: Applications for Public Health Nursing Practice
acknowledges the tremendous contribution made by practicing public health nurses (PHNs)
and educators from Iowa, Minnesota, North Dakota, South Dakota, and Wisconsin. Special
thanks go to the graduate students who identified and analyzed relevant intervention literature.
Forty-six practice experts and educators from those same states volunteered to serve on review
panels, devoting hours of their time and, more importantly, their practice wisdom. An additional
150 preceptors and participants from the Public Health Nursing Practice for the 21st
Century
project provided invaluable input for clarification and richness of the content. This
document could not have happened without them. Gratitude also goes to LaVohn Josten and
Sharon Cross, School of Nursing, University of Minnesota for their insight and evaluation
expertise.
The interventions also reflect the talents and skills of many Minnesota Department of Health
staff. In particular we want to acknowledge our colleagues in the Section of Public Health
Nursing, Marie Margitan, Terre St. Onge, and Karen Zilliox; Diane Jordan and the library
services’ staff; and Lisa Patenaude, former administrative assistant.
We are interested in learning more about how the model is being used or adapted. If you have
comments or questions, please contact us.
Linda Olson Keller
651/296-9176
linda.keller@health.state.mn.us
Sue Strohschein
320/650-1078
sue.strohschein@health.state.mn.us
Suggested citation:
Public Health Nursing Section: Public Health Interventions–Applications for Public
Health Nursing Practice. St. Paul: Minnesota Department of Health, 2001.

Literature Search Managers
Mary Jo Chippendale, University of Minnesota
Jennifer Deschaine, Bethel College
Kathy Lammers, Winona State University
Deborah Meade, Augsburg College
Jackie Meyer, University of Iowa
Dolores Severtson, University of Wisconsin-Madison
Victoria Von Sadovszky, University of Wisconsin-Madison
Expert Panelists
Iowa
Elaine Boes, Palo Alto County Community Health Service
Nancy Faber, Worth County Public Health
Marti Franc, Des Moines Visiting Nurse Services
Penny Leake, Winneshiek County Public Health
Therese O’Brien, Lee County Health Department
Janet Peterson, Iowa Department of Health
Jane Schadle, Wellmark Community Health Improvement
Lu Sheehy, Skill Medical Center
Jenny Terrill, Iowa Department of Health
Minnesota
Mary Kay Haas, Minnesota Nurses Association
Bonnie Brueshoff, Dakota County Public Health
Terre St. Onge, Minnesota Department of Health
Jean Rainbow, Minnesota Department of Health
Karen Zilliox, Minnesota Department of Health
Barb Mathees, Minnesota State University-Moorhead
Cecilia Erickson, Minneapolis Public Schools
Ane Rogers, Cass County Public Health
Rose Jost, Bloomington Health Department
Dorothea Tesch, Minnesota Department of Health
Nancy Vandenberg, Minnesota Department of Health
Ann Moorhous, Minnesota Department of Health
Mary Sheehan, Minnesota Department of Health
Penny Hatcher, Minnesota Department of Health
North Dakota
Ruth Bachmeier, Fargo Cass Public Health
Nancy Mosbaek, Minot State University
Cheryl Hagen, Fargo Cass Public Health
Kelly Schmidt, First District Health Unit–Minot
Debbie Swanson, Grand Forks Public Health Department
Barb Andrist, Upper Missouri District Health Unit
South Dakota
Nancy Fahrenwald, South Dakota State University
Darlene Bergeleen, South Dakota Department of Health
Joan Frerichs, Grant County–Milbank
Paula Gibson, South Dakota Department of Health
Wisconsin
Judy Aubey, Madison Department of Public Health
Elizabeth Giese, Division of Public Health-Wisconsin
Barbara Nelson, St. Croix Health & Human Services Department
Tim Ringhand, Chippewa County Department of Public Health
Marion Reali, Eau Claire City/County Health Department
Gretchen Sampson, Polk County Health Department
Vicki Moss, Viterbo College
Joan Theurer, Wisconsin Department of Health & Family Services
Julie Willems Van Dijk, Marathon County Health Department

Public Health Nursing Interventions
Public health nurses (PHNs) work in schools, homes, clinics, jails, shelters, out of mobile vans and dog sleds.
They work with communities, the individuals and families that compose communities, and the systems that
impact the health of those communities. Regardless of where PHNs work or whom they work with, all public
health nurses use a core set of interventions to accomplish their goals.
Interventions are actions that PHNs take on behalf of individuals, families, systems, and
communities to improve or protect health status.

This framework, known as the “intervention model,” defines the scope of public health nursing practice by type
of intervention and level of practice (systems, community, individual/family), rather than by the more traditional
“site” of service, that is, home visiting nurse, school nurse, occupational health nurse, clinic nurse, etc. The
intervention model describes the scope of practice by what is similar across settings and describes the work of
public health nursing at the community and systems practice levels as well as the conventional individual/family
level. These interventions are not exclusive to public health nursing as they are also used by other public health
disciplines. The public health intervention model does represent public health nursing as a specialty practice of
nursing. (See The Cornerstones of Public Health Nursing, Appendix A)
An enlarged black and white copy of the wheel can be found in Appendix B.
Section of Public Health Nursing
Public Health
Minnesota Department of Health
1
Interventions

The Intervention Wheel
The model, or the “intervention wheel,” as it has come to be known, integrates three distinct and equally
important components:
1.
The population-basis of all public health interventions
2.
The three levels of public health practice:
Community
Systems
Individual/family
3.
The 17 public health interventions:
Surveillance
Disease and Health Threat Investigation
Outreach
Screening
Case-Finding
Referral and Follow-up
Case Management
Delegated Functions
Health Teaching
Counseling

Consultation
Collaboration
Coalition Building
Community organizing
Advocacy
Social Marketing
Policy Development and Enforcement
The model itself consists of a darkened outside ring, three inner rings and seventeen “slices.” Each of the inner
rings of the model are labeled “population-based,” indicating that all public health interventions are population-
based. A population is a collection of individuals who have one or more personal or environmental
characteristics in common.1 A population-of-interest is a population that is essentially healthy, but who could
improve factors that promote or protect health. A population-at-risk is a population with a common identified risk
factor or risk-exposure that poses a threat to health.
1.
Public health interventions are population-based if they focus on entire populations possessing
similar health concerns or characteristics.
This means focusing on everyone actually or potentially impacted by the condition or who share a
similar characteristic. Population-based interventions are not limited to only those who seek service or
who are poor or otherwise vulnerable. Population-based planning always begins by identifying
1Williams, C. A., Highriter, M. E. (1978). Community health nursing–population and practice. Public Health
Reviews, 7(4), 201.
Section of Public Health Nursing
Public Health
Minnesota Department of Health
2
Interventions

everyone who is in the population-of-interest or the population-at-risk. For example, it is a core
public health function to assure that all children are immunized against vaccine-preventable disease.
Even though limited resources may compel public health departments to target programs toward those
children known to be at particular risk for being under or unimmunized, the public health system
remains accountable for the immunization status of the total population of children.
2.
Public health interventions are population-based if they are guided by an assessment of
population health status that is determined through a community health assessment process.
A population-based model of practice analyzes health status (risk factors, problems, protective
factors, assets) within populations, establishes priorities, and plans, implements, and evaluates public
health programs and strategies.2 The importance of community assessment cannot be emphasized
enough. All public health programs are based on the needs of the community. As communities
change, so do community needs. This is why the core function of assessment is so important.3 Public
health agencies need to assess the health status of populations on an ongoing basis, so that public
health programs respond appropriately to new and emerging problems, concerns, and opportunities.
3.
Public health interventions are population-based if they consider the broad determinants of
health.
A population-based approach examines all factors that promote or prevent health. It focuses on the
entire range of factors that determine health, rather than just personal health risks or disease.
Examples of health determinants include income and social status, housing, nutrition, employment and
working conditions, social support networks, education, neighborhood safety and violence issues,
physical environment, personal health practices and coping skills, cultural customs and values, and
community capacity to support family and economic growth.4
4.
Public health interventions are population-based if they consider all levels of prevention, with
a preference for primary prevention.
Prevention is anticipatory action taken to prevent the occurrence of an event or to minimize its effect
after it has occurred.5 A population approach is different from the medical model in which persons
seek treatment when they are ill or injured. Not every event is preventable, but every event does have
a preventable component. Thus, a population-based approach presumes that prevention may occur at
any point–before a problem occurs, when a problem has begun but before signs and symptoms
appear, or even after a problem has occurred.
2 Population-based practice assessment, planning and evaluation model. (1999). CHS planning guidelines.
Minnesota Department of Health (attached as an Appendix).
3 Institute of Medicine. (1988). The future of public health. Washington DC: National Academy Press.
4See, for instance, Evans, R. G., & Stoddard, G. L. (1990). Producing health, consuming health care. Social
Science and Medicine, 31, 1347-1363, or, Wilkinson, R., & Marmot, M. (1998). Social determinants of health: The
solid facts
. World Health Organization. Available http://www.who.uk/document/e59555.pdf.
5Turnock, B. (1997). Public health: What it is and how it works. Gaithersburg, MD: Aspen Publishers.
Section of Public Health Nursing
Public Health
Minnesota Department of Health
3
Interventions

Primary prevention both promotes health and protects against threats to health. It keeps problems
from occurring in the first place. It promotes resiliency and protective factors or reduces susceptibility
and exposure to risk factors. Primary prevention is implemented before a problem develops. It
targets essentially well populations. Primary prevention promotes health, such as building assets in
youth, or keeps problems from occurring, for example, immunizing for vaccine-preventable diseases.
Secondary prevention detects and treats problems in their early stages. It keeps problems from
causing serious or long-term effects or from affecting others. It identifies risks or hazards and
modifies, removes, or treats them before a problem becomes mroe serious. Secondary prevention is
implemented after a problem has begun, but before signs and symptoms appear. It targets populations
that have risk factors in common. Secondary prevention detects and treats problems early, such as
screening for home safety and correcting hazards before an injury occurs.
Tertiary prevention limits further negative effects from a problem. It keeps existing problems from
getting worse. It alleviates the effects of disease and injury and restores individuals to their optimal
level of functioning. Tertiary prevention is implemented after a disease or injury has occurred. It
targets populations who have experienced disease or injury. Tertiary prevention keeps existing
problems from getting worse, for instance, collaborating with health care providers to assure periodic
examinations to prevent complications of diabetes such as blindness, renal disease failure, and limb
amputation.
Whenever possible, public health programs emphasize primary prevention.
5.
Public health interventions are population-based if they consider all levels of practice. This
concept is represented by the inner three rings of the model. The inner rings of the model
are labeled community-focused, systems-focused, and individual/family-focused.
A population-based approach considers intervening at all possible levels of practice. Interventions
may be directed at the entire population within a community, the systems that affect the health of those
populations, and/or the individuals and families within those populations known to be at risk.
Population-based community-focused practice changes community norms, community attitudes,
community awareness, community practices, and community behaviors. They are directed toward
entire populations within the community or occasionally toward target groups within those populations.
Community-focused practice is measured in terms of what proportion of the population actually
changes.
Population-based systems-focused practice changes organizations, policies, laws, and power
structures. The focus is not directly on individuals and communities but on the systems that impact
health. Changing systems is often a more effective and long-lasting way to impact population health
than requiring change from every single individual in a community.
Section of Public Health Nursing
Public Health
Minnesota Department of Health
4
Interventions

Population-based individual-focused practice changes knowledge, attitudes, beliefs, practices, and
behaviors of individuals. This practice level is directed at individuals, alone or as part of a family,
class, or group. Individuals receive services because they are identified as belonging to a population-
at-risk.
Interventions at each of these levels of practice contribute to the overall goal of improving population
health status. Public health professionals determine the most appropriate level(s) of practice based on
community need and the availability of effective strategies and resources. No one level of practice is
more important than another; in fact, most public health problems are addressed at all three levels,
often simultaneously. Consider, for example, smoking rates, which continue to rise among the
adolescent population. At the community level of practice, public health nurses coordinate youth led,
adult supported, social marketing campaigns intending to change the community norms regarding
adolescents’ tobacco use. At the systems level of practice, public health nurses facilitate community
coalitions that advocate city councils to create stronger ordinances restricting over-the-counter youth
access to tobacco. At the individual/ family practice level, public health nurses tach middle school
chemical health classes that increase knowledge about the risks of smoking, change attitudes toward
tobacco use, and improve “refusal skills” among youth 12-14 years of age.
The interventions are grouped with related interventions; these “wedges” are color coordinated to make them
more recognizable. For instance, in practice, the five interventions in the red (pink) wedge are frequently
implemented in conjunction with one another. Surveillance is often paired with disease and health event
investigation, even though either can be implemented independently. Screening frequently follows either
surveillance or disease and health event investigation and is often preceded by outreach activities in order to
maximize the number of those at risk who actually get screened. Most often, screening leads to case-finding,
but this intervention can also be carried out independently or related directly to surveillance and disease and
health event investigation. The green wedge consists of referral and follow-up, case management, and
delegated functions–three interventions which, in practice, are often implemented together. Similarly, health
teaching, counseling, and consultation (the blue wedge) are more similar than they are different; health
teaching and counseling are especially often paired. The interventions in the orange wedge –collaboration,
coalition building, and community organizing–while distinct, are grouped together because they are all types of
collective action and all most often carried out at systems or community levels of practice. Similarly,
advocacy, social marketing, and policy development and enforcement (the yellow wedge) are often
interrelated when implemented. In fact, advocacy is often viewed as a precursor to policy development; social
marketing is seen by some as a method of carrying out advocacy.
Section of Public Health Nursing
Public Health
Minnesota Department of Health
5
Interventions

Where did this model come from?
Health care reform in the 1990s challenged public health nurses to define their contribution to improving
population health. In response, the Section of Public Health Nursing at the Minnesota Department of Health
constructed a set of interventions that public health nurses use in their practice. The model began as a set of
examples of PHN practice collected in 1994 from over 200 experienced Minnesota PHNs. A panel of
practice experts from the section identified the common themes within those examples–and the initial set of
interventions (Public Health Interventions: Examples from Public Health Nursing, October 1997) was created,
depicted as spokes of a wheel. Hundreds of copies of the interventions were distributed within the state and
throughout the nation. Reports from PHNs using Interventions I suggested the framework could be quickly
adopted to both teach and enrich practice.6
The initial interventions framework was practice-based. In July 1998, the Section began intensive work to
determine the evidence underlying the interventions. With the award of a grant from the federal Division of
Nursing, current public health nursing, nursing, public health, and related literature were explored to identify the
theory, research, and expert opinion supporting and enhancing the interventions. In June 1999, forty-six public
health nursing practice experts and academics from Iowa, Minnesota, North Dakota, South Dakota, and
Wisconsin participated in a consensus meeting and created the bases of the revised intervention set. The
recommendations of the regional experts were reviewed and critiqued by a national panel of public health
nursing experts. The model withstood the challenge of rigorous examination with only a few changes to the
original set of 17. The results of that process are presented in this document. (See Appendix C)
What Is the Relationship Between the Interventions Wheel and
the Core Public Health Functions/Essential Services?7
Public health nurses fulfill the public health’s essential services by implementing interventions to address public
health problems and opportunities identified through a community assessment. The specific set of interventions
selected and implemented will vary from community to community, from population to population, from
problem to problem, and from department to department. Additionally, PHNs will most often accomplish
these as part of a team with members from other public health disciplines and other community partners.
6Keller, Strohschein, Lia-Hoagberg, & Schaffer. (1998). Population-based public health nursing
interventions: A model from practice. Public Health Nursing, 15(3), 207-215.
7Harrell, J. A. & Baher, E. L. (1994). The essential services of public health. Leadership in Public Health,
3(3), 27-31.
Section of Public Health Nursing
Public Health
Minnesota Department of Health
6
Interventions

Document Outline

  • Public Health Inteventions
    • Introduction
    • Surveillance
    • Disease and Other Health Event Investigation
    • Outreach
    • Case-Finding
    • Screening
    • Referral and Follow-up
    • Case Management
    • Delegated Functions
    • Health Teaching
    • Counseling
    • Consultation
    • Collaboration
    • Coalition Building
    • Community Organizing
    • Advocacy
    • Social Marketing
    • Policy Development and Enforcement
    • Appendices
      • Cornerstones of Public Health Nursing - Appendix A
      • Public Health Interventions Wheel - Appendix B
      • Literature Search and Analysis of Evidence in Support of Public Health Interventions - Appendix C

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