Engagement and access to support for oral health, substance use, smoking and diet by people with severe and multiple disadvantage: A qualitative study

Background Severe and multiple disadvantage (SMD) is the combined effect of experiencing homelessness, substance use and repeat offending. People experiencing SMD have high burden of physical and mental health issues. Oral health is one of the most common health problems in people experiencing SMD which interacts with substance use, smoking, and unhealthy diet to create a cycle of harm and disadvantage. However, burden of these conditions is worsened by poor access to health services. This study aimed to identify pathways to improve engagement and access to health interventions, for oral health, substance and alcohol use, smoking and diet. Methods Using a qualitative methodology, interviews/focus groups were conducted with: (a) people experiencing SMD in Newcastle Upon Tyne/Gateshead; and (b) frontline staff, volunteer workers, policy makers and commissioners from London, Plymouth and Newcastle Upon Tyne/Gateshead. Data was analysed iteratively using thematic analysis. Results Twenty-eight people experiencing SMD (age range: 27–65 years; 21% females) and 78 service providers (age range: 28–72 years, 63% females) were interviewed or included in focus groups. Data were organized into two overarching factors: barriers to accessing health interventions and improving access to health interventions. Barriers included: wider disadvantages of people experiencing SMD leading to low priority for support for oral health and associated health behaviours, psychosocial factors, waiting period and physical space. Factors that improved access to interventions included: positive relationships between service provider and person experiencing SMD, including a support worker, location of services and outreach services. Conclusions The findings suggest the need for flexibility in offering services for oral health and related health behaviours for people experiencing SMD. Training health care providers and co-developing services with people with lived experience of SMD can help prevent (re)stigmatization. Systems-based approach to address factors on an environmental, organizational, inter-personal and individual level is needed. The results from this study could be extrapolated to other health intervention such as vaccinations and sexual and reproductive health.