Health Impact Assessment (HIA)

Using evidence within HIA

One of the key values of HIA is the ethical use of evidence.

A wide variety of evidence should be collected and assessed, using appropriate and effective methods. This will provide the basis for evidence-based recommendations that can be provided to decision-makers, who can then make decisions about accepting, rejecting, or amending the proposal in the knowledge that they have the best available evidence before them.

HIA considers several types of evidence. It goes beyond published reviews and grey literature to include the knowledge of stakeholders who are involved in or affected by a proposal. Where evidence of the quality and quantity demanded by decision-makers is not available, a note of this is made within the HIA.

In this section, we discuss: