Elements of an HIA

Interpreting the Graphics

Throughout the site, HIA graphics like the one below are used to summarize the contents, focus, and results of each HIA. Explore the page below for insight into each element of an HIA.

Determinants of Health

HIAs examine the potential health effects or consequences of a proposed policy, program, or project by considering the underlying determinants of health, and the magnitude of impact on health caused by the proposed change. Most HIAs evaluate multiple, interconnected determinants of health in order to provide a rich and balanced assessment of well-being impacts.

Most HIAs on this site examine multiple determinants of health that map to one or more Vital Condition. You will find a short list of determinants of health in the “At a Glance” section of the HIA pages. The HIA graphics indicate the primary or most significant determinant of health referenced by the HIA.

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Affected Populations

HIAs examine the potential health effects or consequences of a proposed policy, program, or project to specific priority populations, encompassing diverse groups, communities, demographics, identities, statuses, and lived experiences. Certain population groups may be at greater risk for marginalization and face unique barriers to their health and well-being. .

Priority Populations are used as an organizing framework for the HIAs on this site. They provide a people-centered approach for users to: consider the populations who are affected by the policy, program, or project at hand; prioritize underserved, marginalized or vulnerable populations in the decision-making process; and root HIAs in equity and justice. Most HIAs examine health impacts on multiple priority population groups. You will find these “Affected Populations” listed in the “At a Glance” section of the HIA pages. The HIA graphics indicate the primary or most significant Affected Population examined by the HIA.

Community Types

HIAs have been used in various kinds of communities, including urban, suburban, rural and tribal communities. The HIA process may look different in different community types. The determinants of health and affected populations examined may differ too.

The HIA graphics indicate the community type referenced by the HIA. Some HIAs are applicable to or were conducted in multiple community types. For these HIAs, the HIA graphic will indicate “Various” community types. You will find all community types in which the HIA is applied or conducted listed in the “At a Glance” section of the HIA pages.

Urban

The HIA is applicable or was conducted in urban communities

Suburban

The HIA is applicable or was conducted in suburban communities

Rural

The HIA is applicable or was conducted in rural communities

Tribal

The HIA is applicable or was conducted in tribal communities

Various Community Types

The HIA is applicable or was conducted in various community types

Research Methods

Various research methods have been used with HIAs. Methods include both qualitative and quantitative methods, and utilize primary and secondary data. Most HIAs employ multiple research methods–a mixed methods approach–which enable researchers to develop a well-rounded assessment of health impacts. The methods used in an HIA will be determined by the type of HIA, the existing data available to researchers, and the research questions posed.

Most HIAs on this site employ multiple methods. You will find all methods listed in the “At a Glance” section of the HIA pages. The HIA graphics indicate the primary or most significant method employed by the HIA.

Below is a description of common research methods used with HIA.

Mixed Methods

Literature Review

Survey

Key Informant Interviews

Focus Groups

GIS Analysis

Qualitative Data

Quantitative Data

Primary Data

Secondary Data

Description
Mixed method approaches utilize multiple of the following methods.
A literature review is a written statement that summarizes a body of literature on a particular topic.
Surveys capture self-report information on a variety of topics from survey participants.
Key informant interviews may include structured and unstructured interviews of stakeholders, including experts and community members with lived experience.
Focus groups are small groups that provide input or feedback.
GIS analysis refers to analyses involving geospatial or mapped data that expose geographic trends.
Qualitative data refer to descriptive, interpretation-based, non-numerical data that are often collected through direct observation, interviews, surveys, and focus groups.
Quantiative data refer to numbers-based, countable, measurable data that are often collected through administrative records, surveys, geospatial data, and experiments (simulations).
Primary data refer to data collected by their source, often through direct observation, administrative records, key informant interviews, surveys, focus groups, and community conversations.
Secondary data refer to data collected, processed or analyzed by another party which may include public and/or private data sources.
In HIAs
Using multiple methods helps triangulate information and provides a richer, more well-rounded assessment.EXPLORE HIAs
Literature reviews are used in almost all HIAs.
EXPLORE HIAs
Surveys are rich sources of data for an HIA. A survey may be conducted as part on an HIA, or, sometimes, HIAs leverage data from survey conducted by partners.
EXPLORE HIAs
Many HIAs include interviews which are both a rich source of qualitative data and an approach to stakeholder and community engagement.EXPLORE HIAs
Some HIAs include interviews which are both a rich source of qualitative data and an approach to stakeholder and community engagement.EXPLORE HIAs
In HIAs, GIS analysis has been used to understand the geospatial distribution of health outcomes, vital community conditions and community assets.EXPLORE HIAs
Qualitative data and methods are used in HIAs to catch themes, tell stories of lived experience, and enrichen quantitative analyses.EXPLORE HIAs
Quantitative data and methods are used in HIAs to quantify health status, outcomes and impacts.EXPLORE HIAs
Primary data may be collected as part of the HIA process to help answer research questions in places where secondary data falls short.EXPLORE HIAs
Secondary data are often more accessible and cost-effective than primary data, and are often collected as part of the HIA process .EXPLORE HIAs

Outcome Statement

The Health Impact Project tracked many HIAs over the years to learn about what happened after the assessment wrapped. Some HIAs on this site include an “Outcome Statement” that describes the impacts and outcomes of the HIA on the policy, program, or project at hand. These can be found near the bottom of the HIA pages. The HIA graphics indicate is an “Outcome Statement” is included on the HIA page.

Has Outcome Statement

The HIA page includes an outcome statement

No Outcome Statement

The HIA page does not include an outcome statement

FEATURED

Vital Conditions

The Vital Conditions are the domains, or components, of The Seven Vital Conditions for Health and Well-Being framework which is used for conceptualizing holistic well-being and the factors that give rise to it. Learn More

The Vital Conditions are used as an organizing framework for the HIAs on this site. They provide an easy-to-understand way for users to consider the properties of policies, programs, and projects that people need to be healthy and well. Just as most HIAs examine multiple, interconnected determinants of health, they also touch on multiple Vital Conditions. You will find the Vital Conditions listed in the “At a Glance” section of the HIA pages. The HIA graphics indicate the primary or most significant Vital Condition associated with the HIA.

Level of Influence

HIAs are used to inform policies, programs, and projects at various levels, from local or organizational to federal. The level of influence describes the scale of impact the policy, program, or project at hand. You will find the level of influence listed in the “At a Glance” section of the HIA pages.