Health needs assessment sets health priorities for a given
population according to need and identifies changes and action
needed. Jill Stewart and Fiona Bushell investigate its relevance
to environmental health
A health needs assessment (HNA) researches the current status
of health and need within a community - ie a geographical area or
social group of people - as a basis for decision-making. Fundamentally,
HNA is about profiling a community to determine which health issues
should be tackled and how.1
Both existing and new organisations charged with delivering public
health through partnership arrangements - notably to inform health
improvement plans (HIMPs), community strategies and local strategic
partnerships - have to take a needs-assessed approach, with an emphasis
on ensuring that identified, evidence-based health inequalities
are addressed. Further, in an increasingly competitive funding environment,
that requires almost constant justification as to value for money,
HNA is becoming increasingly important in attracting resources to
an area or community.
HNA, which involves looking at the health problems that have a
major impact on the population and the recurring factors so that
better services can be provided locally1,
helps to provide accurate information on:
baseline or supporting evidence in developing innovative, partnership-based
strategies that are comparable over time;
current and potential health-based activity based on resource
allocation, bidding, or prioritisation, or to influence, justify
or review policy, service or practice;
acceptability and feasibility of policy changes;
impact maximisation in relation to resource used;
community participation and involvement in health activity;
organisational and individual activity in health delivery and
its impact on a community's health; and
local health issues to raise consciousness, or in advocacy
work.
Unravelling the definitions
Before getting started on a HNA, it is important to achieve consensus
from partnership organisations (statutory, voluntary, community
etc) as to what is understood by the concepts of "health"
and "need", as these terms can mean different things to
different people. It is also necessary to determine the "community"
that is subject to assessment, which could be either geographically
based or a dispersed social group. Methods of research and analysis
selected need to be valid, reliable, objective and rigorous enough
to withstand scrutiny.2 At the
earliest stage, the organisations commissioning the HNA research
must decide its purpose so that it can be appropriately directed
and managed.
Health, need and community
A HNA seeks to identify, measure and source health information
in its widest sense, unravel the causes, and find out what action
to take to best address the issues. Although much of the literature
on HNA is placed firmly in the remit of the NHS, it is clear that
improvements need to reach far beyond the NHS to those charged with
delivering positive change to address the underlying causes of ill-health
- notably environmental and public health specialists. But this
must be centred around communities that need support - many of whom
have already filled the gaps in state provision and begun to find
their own health solutions. HNA and resulting policy is not about
public sector organisations domineering grass roots organisations,
but looking at why and how they work, and providing appropriate
support.
A health need can be seen as a subjective, relative concept, identified
by a professional or community. However, needs defined by the former
reflect a professional judgement and may be very different to those
identified by the community. Thus, it is essential that those most
in need of information, support or services are able to express
their needs and have them taken into account. While community profiling
can result in a wish list, limited resources means that not all
needs can be met.
Whether subjective or objective, the purpose of identifying health
needs is to assist in prioritising action to secure health improvements
and to reduce inequalities. Action must be based on qualitative
and quantitative data and medical, environmental and social data
should be layered on top. Information on health status, the community
itself and on the determinants of health, ie lifestyles, quality
of housing, levels of employment and access to health services,
is needed.
Invariably, much HNA is related to the population or "community"
in a geographical area - such as a local authority, a neighbourhood,
or ward - as this normally relates to funding regimes and initiatives.
HNA on a geographical basis is relatively straightforward - the
boundary is clearly defined, easy to understand and a community
is either included in the assessment or it is not. Most population
information is specific to geography, and it is relatively easy
to compile socio-economic, environmental and health information
about an area.
However, there are some difficulties in a geographically specific
approach. Not all vulnerable people live in deprived areas, and
not everyone living in a deprived area is vulnerable. The impact
of globalisation, personal mobility, cultural evolution and evolving
class differentials means that lifestyle has become increasingly
important in health determination. The fact that health status in
an area has changed may be more to do with gentrification than actual
improvements in the health of existing residents. Recorded trends
in health - as well as individual perceptions about health - may
not provide an accurate picture of what is really occurring as data
may be skewed or distorted.
A
more accurate and thorough understanding of a community's health
also needs to consider individual groups of people, such as ethnic
minorities, female-headed households in bed and breakfast accommodation,
gypsies, or those sharing some similarities in health status and
experience, such as those with a particular disability, AIDS, or
older people leaving hospital and returning to their homes alone.
However, although professionals may group those with similar perceived
"needs" for their own purposes, it does not follow that
the same group will recognises itself as a community with common
interests or features (figure 1)
Compiling the data
HNA is essentially a research project, carried out on multiple
levels, for the assessment and planning of how to improve the health
of a community (figure 2). Besides regionally and nationally collated
data sources, organisations like local authorities and primary care
trusts (PCTs) already collate and map many sources of data that
can provide the information needed in the initial stages of a HNA.
Since health and social care delivery organisations
do not always share coterminous boundaries, consideration needs
to be given to possible duplication or distortion of compiled statistics.
Statistics and communities may or may not overlap, are not always
comparable and are not necessarily mutually exclusive.
Initial
profiling involves asking a broad range of people and professionals
what they consider to be the key health problems, as well as collecting
data on an area. The information obtained will contain interrelated
issues to show how medical, environmental, social and economic factors
influencing health are linked and how an integrated approach is
needed to tackle them.1 This can
help map medical, environmental and socio-economic data across boundaries
to identify common patterns and to obtain an integrated, partnership-based
approach to identifying the gaps and links, and solving problems.
The HNA focus on both quantitative and qualitative data reflects
the wider shift in thinking in public health away from the traditional
medical model and toward a socio-economic model that recognises
the underlying causes of ill-health that environmental and associated
health specialists deliver on a daily basis.
Qualitative data is the "why" in social research and
provides valuable understanding and insight into why a situation
is as it is and enables patterns of interrelated issues to be made
clearer. It can be complied by questionnaires, focus groups, and
community networks. It provides personal and community perceptions
which give valuable insight into the impact of a policy that may
not be fully revealed by statistical data alone, rather than just
concentrating on what that overall statistics are (apparently) saying
about an area.
This is becoming increasingly important to the social agenda as
communities are engaging with policy makers in local decision making
- a fundamental part of developing inclusive and bottom up partnerships
so that communities themselves can self-identify need and how it
can be met. It provides decision-makers with the data to support
or refute policy and implementation processes.
Social capital
HNA is not just about finding out what is not adequate, or suitably
sufficient in a community, it is also about recognising the potential
of what is already there in the form of social capital - relationships
and networks in civil society that help formulate collective community
action3,4 - and its importance
to the community resolving its own issues.
A HNA needs to be local and contribute toward this as part of problem
solving and democratic participation.3
However, communities may be experiencing "survey fatigue"
or have had bad experiences of governmental organisations in the
past, leading to some disinterest in current health research activity.
Thus, HNA needs to be approached with sensitivity and tact, valuing
the contribution than many communities already provide themselves.
Uses and presentation
HNA needs to be presented - orally or in written form - in such
a way that something positive will actually come from it. It is
important to consider the key message of the research and to communicate
this in the right way to the right audience. What was the research
for? Is it accurate and contemporary? Has it been successful and
useful? Has it confirmed or refuted earlier perceptions? Who is
going to read it and in what format? Why? What is its current and
future use in policy change or advocacy? Do we recognise the issues
and move forward?
The final document may take several drafts before it is acceptable
for public scrutiny and it may be appropriate to publish interim
findings to help maintain momentum and interest, particularly if
a very long time delay is anticipated between collating and analysing
the data. The expected audience needs to be able to understand what
is being said and to be sure that what is being said is factual
and accurate.
There is no point in pouring resources into a HNA that goes nowhere
or that is so complex or secretive that no one can make sense of
it. It may be that the results need to be reported in a variety
of formats suited to recipient and a summary report is extremely
useful. Sufficient resources should be set aside so that that the
final document can be professionally prepared. It should be a document
that provides evidence-based data that is comparable over time.
Ashton, J and Seymour, H (1988) The New Public Health. Milton
Keynes: Open University Press.
This is an edited version of a chapter of the book Environmental
health as public health, by Jill Stewart and Fiona Bushell, to be
published by Chadwick House Publishing next year. For further details
e-mail: s.mcguire@chgl.com