Unsheltered Homelessness and Health: A Literature Review

Context

In recent years, cities across the world have seen widespread growth in unsheltered homelessness, in which a person sleeps in a place not meant for human habitation such as cars, parks, sidewalks, and abandoned buildings. It is widely understood that people experiencing homelessness have poorer health outcomes than the general population. Less is known about the health of people who are unsheltered, yet they may be exposed to greater health risks than their sheltered counterparts. The purpose of this literature review is to evaluate and summarize the evidence on unsheltered homelessness and health.

Evidence Acquisition

A literature search was conducted using PubMed to identify publications on unsheltered homelessness and health. A total of 42 studies were included for review.

Evidence Synthesis

Unsheltered populations experience higher rates of chronic disease, serious mental illness, and substance abuse than sheltered populations. Unsheltered homelessness is strongly associated with chronic homelessness that exacerbates serious mental illness and substance use, which is often co-occurring. Despite having large unmet health needs, unsheltered populations have lower healthcare utilization and often lack health insurance.

Conclusions

Evaluating the impact of shelter status on health outcomes has important implications for the allocation of housing and health services. Longitudinal studies are needed to examine the relationship between the duration of sheltered and unsheltered homelessness and health outcomes and explore the mediating mechanisms that lead to poor health among unsheltered populations. Despite these limitations, our results also suggest an urgent need to address the unique and severe challenges facing unsheltered populations and the need for intervention approaches that are sensitive to these unique disease burdens.

Dental Pain in Homeless Adults in Porto Alegre, Brazil

Objective

To evaluate the association of dental pain with time living on the street in a sample of homeless people in the city of Porto Alegre, Brazil.

Methods

A cross-sectional study was carried out with homeless people who accessed social services in 2017. A questionnaire was administered covering socioeconomic variables and including questions about general health, use of tobacco/alcohol/drugs, use of dental services and history of dental pain. The decayed, missing, and filled teeth (DMFT) index was calculated in an oral examination. The association between socioeconomic characteristics, health status, time of homelessness and dental pain was evaluated using chi-square, t-, and Mann-Whitney tests.

Results

A total sample of 214 homeless people was surveyed. Most were male (76.2%), had a low level of education (67.6%) and experienced many episodes of dental pain during life (91.0%). The last episode of pain was moderate or intense (79.7%) and do-it-yourself measures for pain relief were preferred (62.3%). Individuals who were homeless for longer than 1 year had more dental pain in the past (P < 0.001), more frequency of a recent episode of dental pain (P = 0.03), and sought a dentist or healthcare service to relieve pain less frequently (P = 0.03).

Conclusions

Dental pain is frequent in the context of homelessness and does not necessarily result in seeking dental services, even where there is universal oral health care.

Health assessments and screening tools for adults experiencing homelessness: a systematic review

BACKGROUND

Homelessness is increasing globally. It results in poorer physical and mental health than age matched people living in permanent housing. Better information on the health needs of people experiencing homelessness is needed to inform effective resourcing, planning and service delivery by government and care organisations. The aim of this review was to identify assessment tools that are valid, reliable and appropriate to measure the health status of people who are homeless.

METHODS

Data sources: A systematic literature search was conducted in PubMed (and Medline), PsychInfo, Scopus, CINAHL and ERIC from database inception until September 2018. Key words used were homeless, homelessness, homeless persons, vagrancy, health status, health, health issues, health assessment and health screening. The protocol was registered with PROSPERO. The National Health and Medical Research Council of Australia (NHMRC) hierarchy of evidence was applied; methodological quality of included articles was assessed using the McMaster critical appraisal tools and psychometric properties of the tools were appraised using the International Centre for Allied Health Evidence Ready Reckoner.

RESULTS

Diverse tools and measures (N = 71) were administered within, and across the reviewed studies (N = 37), with the main focus being on general health, oral health and nutrition. Eleven assessment tools in 13 studies had evidence of appropriate psychometric testing for the target population in domains of quality of life and health status, injury, substance use, mental health, psychological and cognitive function. Methodological quality of articles and tools were assessed as moderate to good. No validated tools were identified to assess oral health, chronic conditions, anthropometry, demography, nutrition, continence, functional decline and frailty, or vision and hearing. However, assessments of physical constructs (such as oral health, anthropometry, vision and hearing) could be applied to homeless people on a presumption of validity, because the constructs would be measured with clinical indicators in the same manner as people living in permanent dwellings.

CONCLUSIONS

This review highlighted the need to develop consistent and comprehensive health assessment tools validated with, and tailored for, adults experiencing homelessness.

Oral health-related quality of life in socially endangered persons in Copenhagen, Denmark

OBJECTIVE

The aims of this study were to investigate and describe the Oral Health Related Quality of Life (OHRQoL) in a socially endangered group of people and to compare the OHRQoL to other patient groups.

MATERIAL AND METHODS

About 294 socially endangered persons attending a volunteer clinic in Copenhagen Denmark filled in the OHIP-14 questionnaire. The group was compared in mean score and reported problems to a group of patients with tooth loss and about to have a removable dental prosthesis (RDP), a group with tooth loss about to have a fixed dental prosthesis (FDP) and a control group without tooth loss.

RESULTS

Significantly higher OHIP-14 score was seen in the socially endangered group (15.5 (SD 12.6)) compared with the control (1.9 (SD 2.7)) and the FDP group (9.4 (SD 8.2)) but not the RDP group (13.1 (SD 10.5)). This difference was not changed after stratifying in age groups. Problems related to psychological disability, social disability, and handicap were more frequent in the social endangered group than for the other groups. The items pain, tense, diet, relax, life, and function stand out as problems in the socially endangered group compared to the other groups.

CONCLUSION

The OHRQoL is highly impaired in the socially endangered persons and at least to the level of persons with great tooth loss about to have an RDP. The problems seem to be more handicapping in the socially endangered compared with other patient groups known to have high impairment.

Oral health care needs and oral health-related quality of life (OHIP-14) in homeless people

OBJECTIVES

The aim of this study was (i) to determine the oral health status and oral health care needs of this population, (ii) to assess oral health-related quality of life using OHIP-14 and (iii) to explore whether there is a relationship between oral health status and oral health-related quality of life.

METHODS

A convenience sample was drawn from eight facilities catering for homeless people in south east London. Participants were invited to attend an outreach dental clinic and receive a clinical oral health and treatment needs assessment. The impact of oral disease was assessed using OHIP-14.

RESULTS

There were 102 people from a range of vulnerable housing situations invited to participate in the study. The mean age was 39.5 (SD +/- 12.3) and 92% (n = 92) were men. The mean DMFT of dentate participants (n = 94) was 15.5 (SD +/- 7.6), mean DT was 4.2 (SD +/- 5.2), mean MT was 6.8 (SD +/- 6.0) and mean FT was 4.6 (SD +/- 4.8). Normative needs were extensive with 76% having a restorative need, 80% having a need for oral hygiene measures and periodontal treatment and 38% having a prosthetic treatment need. Ninety one per cent of homeless people experienced at least one impact and the mean number of impacts (n = 90) was 5.9 (SD +/- 4.8).The most commonly experienced oral health-related quality of life impacts were in the dimension of pain, with aching in the mouth having a prevalence of 65% and discomfort while eating foods having a prevalence of 62%. Forty-four per cent felt handicapped by their oral condition. The experience of oral impact had only a slight relationship with clinical status and there were no differences in clinical status or oral impact by vulnerability of housing situation.

CONCLUSIONS

Oral health care needs were extensive and greater than that of the general population in the UK, although disease levels were similar. While homeless people experienced many more oral impacts (as measured with OHIP-14) compared with adults of the same age in the general population in the UK, there was only a slight relationship with clinical status and oral health-related quality of life.