The notion 'hard to reach' is a contested and ambiguous term [
1] that is commonly used within the spheres of social care and health, especially in discourse around health and social inequalities.
Reducing inequalities in health and health provision is a key theme underpinning the NHS Plan and National Service Framework' [
2]. This same report acknowledged that certain groups are marginalized from services and therefore 'harder to reach' for health services whose goal is to provide appropriate and equitable health care for all populations. The Framework stated that primary care has a significant role to play in providing services that reach those in the greatest need but a Home Office report in 2004 [
3] described the 'hard-to-reach' as 'inaccessible to most traditional and conventional methods for any reason.'. On the other hand, voluntary and community organisations (VCOs) are considered 'uniquely placed to reach marginalised groups' [
4] and the 'hardest to reach' [
5], and play an important role in the provision of health and social care services for these groups [
6].
This paper describes the first stage of a planned study aimed at improving understanding of the 'hard to reach' and improving access to primary health services for 'hard to reach' groups. Acknowledgement of the established role of the Voluntary and Community Sector in providing services for these groups informed a decision to begin the study by exploring the perceptions and experiences of organisations from this sector.
This first stage of the study had two research objectives -

To describe how service providers from the voluntary and community sector (VCS) conceive of the notion 'hard to reach'.

To explore perceptions of the barriers and facilitators to accessing services for 'hard to reach' groups.
Using the search terms: 'hard to reach populations' 'hidden populations', 'marginalized populations', a literature search was conducted using the following databases: Books @ Ovid, Journal @ Ovid Full text, British Nursing Index (BNI), CAB Abstracts (1973-2006), CINAHL, EMBASE, Ovid Medline, PSYCINFO, Sociological Abstracts and Web of Science. Searches were restricted to English-language papers and limited from 1997 to present day. A search of the grey literature was also conducted using the Home Office and Department of Health websites. A Google search was undertaken limited to last 12 months using the term 'hard to reach Groups.'
Despite the apparent familiarity of the term and its use in social research and public policy, there would appear to be a lack of consensus about the meaning of the term. Within the literature, 'hard to reach' is often synonymised with other terms and the sheer multiplicity of alternatives reflects the divergence in the discourse as well as the difficulty in arriving at a definitive description of its meaning. 'Vulnerable', transient' [
7] 'marginalised' 'refusers' [
8], 'hidden' [
9], 'forgotten populations' [
10], 'underserved' [
11], 'special populations' [
12] 'disadvantaged populations' [
13] are terms that have all been utilised in the literature pertaining to addressing issues faced by the 'hard to reach', or indeed those who are trying to reach them. There was an overarching sense that trying to engage the 'hard to reach' is problematic, as described almost two decades ago by Freimuth & Mettger [
14](1990) and this may be due to the inherent ambiguity and lack of clarity of definition. Assignation of the term appears largely dependent upon the context of the organisation doing the reaching.
The 'hard to reach' groups most commonly identified in the literature are sex workers, drug users, people living with HIV and people from lesbian, gay, bisexual, transgender and intersex communities [
15-
17], but there are a number of other groups to which the description applies including asylum seekers, refugees, black and minority ethnic communities (BME), children and young people, disabled people, elderly people [
18] and traveller families [
19]. The 'hard to reach' may be people who are stigmatised due to the fact they are perceived as being somehow different.
If we think in terms of stigma and social exclusion in a healthcare context, the 'hard to reach' may include people with a variety of conditions or life limiting illnesses. This may include people with congenital abnormalities [
20] or genetic conditions [
21]; people with hearing loss [
22]; people with mental health problems [
23,
24].
It is important to address also the notion that there are populations who are deemed 'hard to reach' but who are 'non-associative'; that is they do not generally associate with other members [
25]. These populations are comparatively under-researched and it is acknowledged that trying to gain access to disparate and often isolated individuals, although labour intensive, is an important area of consideration for researchers and indeed service providers working with the 'hard to reach.'
'Hard to reach' audiences have been defined as 'inaccessible to most traditional and conventional methods for any reason' [
3], highlighting the difficulty facing statutory health care provision. The voluntary and community sector has arguably been more successful in penetrating some of the barriers for the 'hard to reach' and has an important role to play in the understanding of service delivery provision.
There are around half a million voluntary and community organisations (VCOs) in the UK and there is a long tradition of voluntary action and community service in this country [
4]. They have been used increasingly to deliver public services, especially over the last ten years [
26-
28].
The VCS is a term used to describe self-governing organisations working in areas of public benefit and they are 'value-driven' in that they 'exist for the good of the community' [
29]. They can range in size from small community based groups or projects to large national and international organisations.
As the term suggests, these services often rely upon volunteers for service provision and delivery and are characterised by their independence from the 'formal structures of government and the profit sector'.
However, in practice it appears that the sector 'defies easy definition' [
30] and it is suggested that the inherent ambiguity and variation in terms of how various organisations define and describe themselves is the very reason they are able to provide such diversity and flexibility.
Research Objectives
The aim of the study was to explore 'hard to reach'-from the experiences and perspectives of the VCS. The findings would contribute to a larger study considering how these maybe translated to provision of services in primary health care.
The specific objectives of the work described in this paper were:

To describe how service providers from the voluntary and community sector (VCS) conceive of the notion 'hard to reach'.

To explore perceptions of the barriers and facilitators to accessing services for 'hard to reach' groups.