Prevalence of tuberculosis, hepatitis C virus, and HIV in homeless people: a systematic review and meta-analysis

Prevalence of pulmonary tuberculosis and its associated factors among people who ecprience homelessness living in selected towns in Wolaita zone, southern Ethiopia

BACKGROUND

Tuberculosis (TB) is known to be a disease associated with underprivileged social conditions such as poverty, malnutrition, and overcrowding. Homeless individuals are at a higher risk of contracting TB due to factors such as substance misuse, alcohol disorder, smoking, and malnutrition. Recognizing this risk, the World Health Organization recommends TB screening in these vulnerable populations. As a result, this study aims to evaluate the prevalence of TB and its associated factors among people who experience homelessness living in Wolaita Zone Towns.

METHOD

A cross-sectional study was conducted on 352 homeless individuals with presumed TB from May 1 to July 30, 2023. Data was collected using pre-tested structured questionnaires. The symptom was assessed using WHO guidelines. Sputum samples were screened for TB using GeneXpert MTB/RIF assay technique and those found to be positive were confirmed via the Lowenstein-Jensen(LJ) culture method by comparing equal numbers of positives and negatives. The data was analyzed using statistical software packages (SPSS) version 26. Logistic regression analysis was used to identify factors associated with TB and a P-value of less than 0.05 at a 95% confidence interval was considered statistically significant.

RESULTS

The prevalence of bacteriological confirmed TB among homeless individuals was 7.7% [95% CI: 4.8- 10.5] and rifampicin-resistant TB (RR-TB) was not detected. Multivariate logistic regression analysis revealed that smoking cigarettes[AOR = 7.673, 95% CI: 1.622,36.303], smoking benzene[AOR = 8.348, 95% CI: 2.061,33.813], chewing tobacco [AOR = 4.138, 95% CI: 1.249,13.709], duration of being homeless[AOR = 6.749, 95% CI: 1.914, 23.797], taking any medication currently [AOR = 4.686, 95% CI:1.216,18.064], BMI [AOR = 5.328, 95% CI: 1.663,17.070] and having HIV infection [AOR = 5.234, 95% CI: 1.558, 17.585] were significantly associated with the prevalence of PTB in people who experience homelessnesss.

CONCLUSIONS

This study indicates a higher prevalence of pulmonary TB (PTB) in homeless individuals compared to the general population. It is strongly recommended to implement targeted TB preventive and control measures and actively monitor for the diseases within those vulnerable population.

Improving outcomes for people who are homeless and have severe mental illness in Ethiopia, Ghana and Kenya: overview of the HOPE programme

AIM

HOPE (National Institute for Health and Care Research Global Health Research Group on Homelessness and Mental Health in Africa) aims to develop and evaluate interventions that address the unmet needs of people who are homeless and have severe mental illness (SMI) living in three African countries in ways that are rights-based, contextually grounded, scalable and sustainable.

METHODS

We will work in the capital city (Addis Ababa) in Ethiopia, a regional city (Tamale) in Ghana, and the capital city (Nairobi) and a rural county (Makueni) in Kenya to understand different approaches to intervention needed across varied settings.We will be guided by the MRC/NIHR framework on complex interventions and implementation frameworks and emphasise co-production. Formative work will include synthesis of global evidence (systematic review, including grey literature, and a Delphi consensus exercise) on interventions and approaches to homelessness and SMI. We will map contexts; conduct focused ethnography to understand lived experiences of homelessness and SMI; carry out a cross-sectional survey of people who are homeless (n = 750 Ghana/Ethiopia; n = 350 Kenya) to estimate prevalence of SMI and identify prioritised needs; and conduct in-depth interviews and focus group discussions with key stakeholders to understand experiences, challenges and opportunities for intervention. This global and local evidence will feed into Theory of Change (ToC) workshops with stakeholders to establish agreement about valued primary outcomes, map pathways to impact and inform selection and implementation of interventions. Intervention packages to address prioritised needs will be co-produced, piloted and optimised for feasibility and acceptability using participatory action research. We will use rights-based approaches and focus on community-based care to ensure sustainability. Realist approaches will be employed to analyse how contextual variation affects mechanisms and outcomes to inform methods for a subsequent evaluation of larger scale implementation. Extensive capacity-strengthening activities will focus on equipping early career researchers and peer researchers. People with lived experience of SMI and policymakers are an integral part of the research team. Community engagement is supported by working closely with multisectoral Community Advisory Groups.

CONCLUSIONS

HOPE will develop evidence to support action to respond to the needs and preferences of people experiencing homelessness and SMI in diverse settings in Africa. We are creating a new partnership of researchers, policymakers, community members and people with lived experience of SMI and homelessness to enable African-led solutions. Key outputs will include contextually relevant practice and policy guidance that supports achievement of inclusive development.

Tuberculosis and people who use drugs: why focus on this overlooked population is important and why adapted interventions are necessary

People who use drugs show a higher incidence and prevalence of tuberculosis than people who do not use drugs in areas where Mycobacterium tuberculosis is endemic. However, this population is largely neglected in national tuberculosis programmes. Strategies for active case finding, screening, and linkage to care designed for the general population are not adapted to the needs of people who use drugs, who are stigmatised and difficult to reach. Moreover, access to care, linkage to care, and treatment adherence are challenging for such a marginalised population. Learning from the HIV field about successful interventions targeting this group, we advocate for the implementation of tuberculosis interventions adapted for people who use drugs, highlighting the key role that community-based approaches could have in both design and implementation. Alongside reducing health inequities by reducing the excess tuberculosis burden among people who use drugs, these targeted interventions can also reduce tuberculosis transmission at the population level.

Housing matters: The long-term impact of stable housing on mortality among people with HIV in British Columbia, Canada

AIM

For several decades, British Columbia (BC), Canada, has been experiencing a housing crisis marked by a shortage of safe and affordable housing, which coincides with a severe drug poisoning epidemic in the region. We explore the impact of housing instability on mortality (all-cause, drug-related) among a cohort of people with HIV (PWH) in BC.

METHODS

Data are from the Longitudinal Investigation into Supportive and Ancillary Health Services (LISA) study (n = 997). Data from the cross-sectional LISA survey (2007-2010) are linked with administrative health data from Population Data BC and the BC Centre for Excellence in HIV/AIDS Drug Treatment Program (DTP) until March 31, 2020. We used inverse probability of participation weighting (IPPW) to address selection bias, introduced in LISA through oversampling of PWH marginalized by sociostructural inequities. We constructed participation weights using information from the DTP database, which includes all known PWH in BC accessing antiretrovirals via the DTP (including respondents and non-respondents to LISA). We estimated hazards of all-cause and drug-related mortality associated with housing instability using an adjusted, IPPW-weighted Cox proportional hazards model.

RESULTS

In this sample, 317 (31.8%) people reported housing instability. Overall, 302 people (30.3%) died from any cause between the completion of the LISA survey until March 31, 2020; of those people, 138 (45.7%) experienced housing instability. Results suggest housing instability is associated with increased hazards of all-cause mortality (adjusted Hazards Ratio (aHR): 1.46; 95% CI: 1.08-1.96). The association between housing instability and hazards for drug-related mortality include a range of values consistent with the null (aHR: 1.67; 95% CI: 0.89-3.13).

CONCLUSION

PWH experiencing housing instability may have greater hazards of all-cause mortality. Our findings add to the literature supporting a need to expand access to safe and affordable housing.

Liver-related mortality in homeless-experienced adults over a 16-year period

Homeless-experienced adults have higher liver-related mortality than the general population. The objective of our study was to examine temporal liver-related mortality trends and assess cause-specific liver-related mortality disparities in a large cohort of homeless-experienced adults. We linked a cohort of 60,092 adults who received care at Boston Health Care for the Homeless Program (BHCHP) from 2003-2017 to Massachusetts death occurrence files spanning 2003-2018. We evaluated temporal trends in age-standardized liver-related mortality rates in comparison to the MA population. We identified the leading causes of liver-related death aggregated across the study period and compared these cause-specific mortality rates to the general population, reporting standardized mortality rate ratios (SRRs). Of the 7,130 deaths in the cohort, 652 (9.1%) were liver-related. Among liver-related decedents, the mean age at death was 55.7 years (SD 8.3); 517 (79.2%) were male and 399 (61.2%) were White. Liver-related mortality decreased on average 3.5% annually (95% CI: -6.6%, -0.3%), though remained significantly higher than the MA population throughout the study period. Leading causes of liver-related death were cirrhosis (n=157, SRR 3.2 [95% CI: 3.2, 3.3]), liver cancer (n=148, SRR 2.4 [95% CI: 2.4, 2.5]), alcohol-related liver disease (n=140, SRR 4.4 [95% CI: 4.3, 4.6]), and viral hepatitis (n=99, SRR 7.2 [95% CI: 6.9, 7.6]).Liver-related deaths are an important contributor to excess mortality among homeless-experienced adults. Efforts to reduce this disparity should address alcohol use disorder and viral hepatitis given their substantial contribution to the disparity of mortality in this population.

Prevalence of HCV Infection Among People Experiencing Homelessness in Madrid, Spain

Importance

Hepatitis C virus (HCV) microelimination aims to detect and treat hidden infections, especially in at-risk groups, like people experiencing homelessness (PEH) with alcohol or drug use disorders. Point-of-care HCV RNA testing and peer support workers are crucial for identifying and preventing HCV infection among marginalized populations, contributing to overall elimination goals.

Objective

To assess risk factors, prevalence, and trends of active HCV infection among PEH in Madrid, Spain (2019-2023).

Design, Setting, and Participants

This cross-sectional study was conducted between 2019 and 2023 in PEH, defined as people who lacked a fixed, regular, and adequate night residence, screened on the street or in homeless shelters via mobile unit using rapid HCV antibody testing, followed by HCV-RNA testing in Madrid, Spain. Data were analyzed from January to June 2024.

Main Outcomes and Measures

Active HCV infection among PEH was the main outcome. Risk factors analyzed included being born outside of Spain, alcohol misuse, lacking financial income, benzodiazepine use, injection drug use (IDU; including nonactive IDU and active IDU within the last year), opioid substitution therapy participation, and sexual behavior patterns. Data were analyzed using logistic regression. P values were adjusted for multiple testing using the false discovery rate (q-values).

Results

A total of 4741 individuals were screened for HCV infection, of whom 2709 (mean [SD] age, 42.2 [12.7]; 1953 [72.2%] men) were PEH and included in analysis. A total of 363 PEH (13.4%) had test results positive for HCV antibodies, of whom 172 (47.4%) had test results positive for HCV-RNA, and 148 of these (91.9%) started HCV treatment. Overall, active HCV infection prevalence was 6.3%, and the main risk factors associated with active HCV infection included IDU, encompassing both nonactive IDU (adjusted odds ratio [aOR], 10.9; 95% CI, 6.1-19.4; q < .001) and active IDU in the last year (aOR, 27.0; 95% CI, 15.2-48.0; q < .001); a lack of financial income (aOR, 1.8; 95% CI, 1.1-2.9; q = .03); and alcohol misuse (aOR, 1.8; 95% CI, 1.3-2.6; q = .008). There was a significant decrease between 2019 and 2023 in active HCV infection prevalence across the entire population, from 7.2% to 3.4% (P = .04).

Conclusions and Relevance

In this cross-sectional study of PEH in Madrid, IDU, lack of income, and alcohol misuse were primary risk factors associated with HCV infection. The significant decline in HCV rates observed across all risk groups during the study period suggests preventive policies were effective in reducing HCV prevalence among the homeless population.

Infectious Diseases Among People Experiencing Homelessness: A Systematic Review of the Literature in the United States and Canada, 2003-2022

Homelessness increases the risk of acquiring an infectious disease. We conducted a systematic review of the literature to identify quantitative data related to infectious diseases and homelessness. We searched Google Scholar, PubMed, and SCOPUS for quantitative literature published from January 2003 through December 2022 in English from the United States and Canada. We excluded literature on vaccine-preventable diseases and HIV because these diseases were recently reviewed. Of the 250 articles that met inclusion criteria, more than half were on hepatitis C virus or Mycobacterium tuberculosis. Other articles were on COVID-19, respiratory syncytial virus, Staphylococcus aureus, group A Streptococcus, mpox (formerly monkeypox), 5 sexually transmitted infections, and gastrointestinal or vectorborne pathogens. Most studies showed higher prevalence, incidence, or measures of risk for infectious diseases among people experiencing homelessness as compared with people who are housed or the general population. Although having increased published data that quantify the infectious disease risks of homelessness is encouraging, many pathogens that are known to affect people globally who are not housed have not been evaluated in the United States or Canada. Future studies should focus on additional pathogens and factors leading to a disproportionately high incidence and prevalence of infectious diseases among people experiencing homelessness.

Exploring the Role of Rehabilitation Medicine within an Inclusion Health Context: Examining a Population at Risk from Homelessness and Brain Injury in Edinburgh

People experiencing homelessness are at risk from a number of comorbidities, including traumatic brain injury, mental health disorders, and various infections. Little is known about the rehabilitation needs of this population. This study took advantage of unique access to a specialist access GP practice for people experiencing homelessness and a local inclusion health initiative to explore the five-year period prevalence of these conditions in a population of people experiencing homelessness through electronic case record searches and to identify barriers and facilitators to healthcare provision for this population in the context of an interdisciplinary and multispecialist inclusion health team through semi-structured interviews with staff working in primary and secondary care who interact with this population. The five-year period prevalence of TBI, infections, and mental health disorders was 9.5%, 4%, and 22.8%, respectively. Of those who had suffered a brain injury, only three had accessed rehabilitation services. Themes from thematic analysis of interviews included the impact of psychological trauma, under-recognition of the needs of people experiencing homelessness, resource scarcity, and the need for collaborative and adaptive approaches. The combination of quantitative and qualitative data suggests a potential role for rehabilitation medicine in inclusion health initiatives.

Incontinence and homelessness

The fundamental principles of why specific people become homeless, can be grounded in a simple rationale or founded within sophisticated reasoning. For instance, people who suffer from substance abuse, addiction, alcohol, gambling, have mental health concerns or financial difficulties may be susceptible to homelessness. It is also identified that persons who experienced violence in their childhood or abuse by a partner are at a higher risk of becoming homeless. Homelessness knows no ethnic, cultural, religious or gender boundaries, and can impact all individuals' health and well-being. A health problem and worldwide phenomenon that affects all cohorts of the population, including the homeless, is urinary incontinence. The aim of this article is to increase the awareness of incontinence and highlight the impact it has on the lives of people that experience homelessness.

Meeting the Health and Social Needs of America's Unhoused and Housing-Unstable Populations: A Position Paper From the American College of Physicians

Access to safe and stable housing has both a direct and indirect effect on health. Experiencing homelessness and housing instability can induce stress and trauma, worsening behavioral health and substance use. The absence of safe and stable living conditions can make it challenging to rest, recuperate, and recover from health ailments and can pose barriers to treatment adherence. Homelessness and housing instability is associated with high rates of numerous diseases and chronic conditions. Its cyclical relationship with other social drivers of health can exacerbate health disparities. As a result, unhoused persons experience unique health challenges and require a health care system and professionals designed to meet their distinct needs. Physicians and other health professionals have a role in educating themselves about the needs of unhoused patients as well as making themselves aware of community and government resources available to these populations. Policymakers must support health professionals in these efforts by supporting the data infrastructure needed to facilitate these referrals to resources, supporting research into best practices for caring for these populations, and investing in community-based organization capacity. Policy action is needed to address the underlying drivers of homelessness, including a dearth of affordable housing, while also addressing the short-term need for safe shelter now. In this position paper, the American College of Physicians (ACP) recognizes the need to address universal access to housing to fulfill one's right to health. ACP offers several recommendations to prevent homelessness and promote the necessary health care and social needs of unhoused populations.

Association of homelessness and diet on the gut microbiome: a United States-Veteran Microbiome Project (US-VMP) study

Military veterans account for 8% of homeless individuals living in the United States. To highlight associations between history of homelessness and the gut microbiome, we compared the gut microbiome of veterans who reported having a previous experience of homelessness to those from individuals who reported never having experienced a period of homelessness. Moreover, we examined the impact of the cumulative exposure of prior and current homelessness to understand possible associations between these experiences and the gut microbiome. Microbiome samples underwent genomic sequencing and were analyzed based on alpha diversity, beta diversity, and taxonomic differences. Additionally, demographic information, dietary data, and mental health history were collected. A lifetime history of homelessness was found to be associated with alcohol use disorder, substance use disorder, and healthy eating index compared to those without such a history. In terms of differences in gut microbiota, beta diversity was significantly different between veterans who had experienced homelessness and veterans who had never been homeless (P = 0.047, weighted UniFrac), while alpha diversity was similar. The microbial community differences were, in part, driven by a lower relative abundance of Akkermansia in veterans who had experienced homelessness (mean; range [in percentages], 1.07; 0-33.9) compared to veterans who had never been homeless (2.02; 0-36.8) (P = 0.014, ancom-bc2). Additional research is required to facilitate understanding regarding the complex associations between homelessness, the gut microbiome, and mental and physical health conditions, with a focus on increasing understanding regarding the longitudinal impact of housing instability throughout the lifespan.IMPORTANCEAlthough there are known stressors related to homelessness as well as chronic health conditions experienced by those without stable housing, there has been limited work evaluating the associations between microbial community composition and homelessness. We analyzed, for the first time, bacterial gut microbiome associations among those with experiences of homelessness on alpha diversity, beta diversity, and taxonomic differences. Additionally, we characterized the influences of diet, demographic characteristics, military service history, and mental health conditions on the microbiome of veterans with and without any lifetime history of homelessness. Future longitudinal research to evaluate the complex relationships between homelessness, the gut microbiome, and mental health outcomes is recommended. Ultimately, differences in the gut microbiome of individuals experiencing and not experiencing homelessness could assist in identification of treatment targets to improve health outcomes.

Burden of tuberculosis among vulnerable populations worldwide: an overview of systematic reviews

BACKGROUND

Tuberculosis is a communicable disease of public health concern that inequitably impacts the most vulnerable populations worldwide. Vulnerable populations are those with a high risk for tuberculosis disease and whose disadvantaged or marginalised socioeconomic position limits their access to the health system. We conducted an overview of reviews that aimed to assess the burden (ie, prevalence and incidence) of tuberculosis disease among 12 vulnerable populations globally.

METHODS

We did an overview of reviews using a systematic search in MEDLINE, Embase, and the Cochrane Database for Systematic Reviews for articles published in English, French, and Chinese, from Jan 1, 2010 to March 8, 2023. We did an initial search on Oct 28, 2021, and updated our search on March 8, 2023. We included systematic and scoping reviews reporting on the prevalence or incidence of active tuberculosis among 12 vulnerable populations. Evidence gaps were supplemented with primary or secondary database studies. Study characteristics and outcome data related to tuberculosis burden were tabulated, including prevalence ratios and incidence rate ratios, and evidence was synthesised narratively. This trial is registered with PROSPERO (CRD42022324421).

FINDINGS

We screened 13 169 citations and included 44 publications (23 reviews and 21 primary or database studies) in the final synthesis. The comprehensiveness and methodological quality of the evidence differed across population groups. Prevalence of more than 1000 cases per 100 000 were reported in all vulnerable populations. On the basis of pooled estimates, prevalence ratios were often more than 25 among people experiencing homelessness, incarcerated populations, refugees, asylum seekers, and people living with HIV compared with the general population. Incidence was infrequently reported, with the best-available incidence rate ratios documented for people who were incarcerated. There was scarce evidence specific to miners, nomadic populations, sex workers, men who have sex with men, and transgender individuals.

INTERPRETATION

The burden of tuberculosis is substantially higher among vulnerable populations than general populations, suggesting a need for improved integration of these groups, including dedicated efforts for their identification, targeted screening and prevention measures, as well as treatment support.

FUNDING

WHO.

PROTOCOL: The effectiveness of skills training to increase employment among those experiencing and at risk of homelessness: A systematic review

This is the protocol for a Campbell systematic review. The objectives are as follows. We will solve the following questions: (1) What are the characteristics of skills training services for individuals experiencing or at risk of homelessness? (2) How effectively do the different skills training programs improve employment status, work and life skills, or housing stability? (3) What factors are associated with the variation in the effectiveness of skills training services?

Diagnosis, Treatment, and Prevention of Tuberculosis Among People Experiencing Homelessness in the United States: Current Recommendations

OBJECTIVE

Tuberculosis (TB) is a public health problem, especially among people experiencing homelessness (PEH). The Advisory Council for the Elimination of Tuberculosis issued recommendations in 1992 for TB prevention and control among PEH. Our goal was to provide current guidelines and information in one place to inform medical and public health providers and TB programs on TB incidence, diagnosis, and treatment among PEH.

METHODS

We reviewed and synthesized diagnostic and treatment recommendations for TB disease and latent TB infection (LTBI) as of 2022 and information after 1992 on the magnitude of homelessness in the United States, the incidence of TB among PEH, the role of public health departments in TB case management among PEH, and recently published evidence.

RESULTS

In 2018, there were 1.45 million estimated PEH in the United States. During the past 2 decades, the incidence of TB was >10 times higher and the prevalence of LTBI was 7 to 20 times higher among PEH than among people not experiencing homelessness. TB outbreaks were common in overnight shelters. Permanent housing for PEH and the use of rapid TB diagnostic tests, along with isolation and treatment, reduced TB exposure among PEH. The use of direct observation enhanced treatment adherence among PEH, as did involvement of social workers to help secure shelter, food, safety, and treatment for comorbidities, especially HIV and substance use disorders. Testing and treatment for LTBI prevented progression to TB disease, and shorter LTBI regimens helped improve adherence. Federal agencies and the National Health Care for the Homeless Council have helpful resources.

CONCLUSION

Improvements in TB diagnosis, treatment, and prevention among PEH are possible by following existing recommendations and using client-centered approaches.

SARS-CoV-2 incidence, seroprevalence, and COVID-19 vaccination coverage in the homeless population: a systematic review and meta-analysis

Objectives

SARS-CoV-2 infection and COVID-19 vaccination of homeless people are a serious public health concern during COVID-19 pandemic. We aimed to systematically assess SARS-CoV-2 incidence, seroprevalence, and COVID-19 vaccination coverage in homeless people, which are important to inform resource allocation and policy adjustment for the prevention and control of COVID-19.

Methods

We searched PubMed, Web of Science, and the World Health Organization COVID-19 database for the studies of SARS-CoV-2 incidence, seroprevalence, and COVID-19 vaccination coverage in the homeless population. Subgroup analyses were conducted to pool SARS-CoV-2 incidence and seroprevalence in sheltered homeless, unsheltered homeless, and mixed population, respectively. Potential sources of heterogeneity in the estimates were explored by meta-regression analysis.

Results

Forty-nine eligible studies with a total of 75,402 homeless individuals and 5,000 shelter staff were included in the meta-analysis. The pooled incidence of SARS-CoV-2 infection was 10% (95% CI: 7 to 12%) in the homeless population and 8% (5 to 12%) for shelter staff. In addition, the overall estimated SARS-CoV-2 specific seroprevalence was 19% (8 to 33%) for homeless populations and 22% (3 to 52%) for shelter staff, respectively. Moreover, for the homeless subjects, the pooled incidence was 10% (4 to 23%) for asymptomatic SARS-CoV-2 infections, 6% (1 to 12%) for symptomatic SARS-CoV-2 infections, 3% (1 to 4%) for hospitalization for COVID-19, and 1% (0 to 2%) for severe COVID-19 cases, respectively while no COVID-19-related death was reported. Furthermore, the data derived from 12 included studies involving 225,448 homeless individuals revealed that the pooled proportion of one dose COVID-19 vaccination was 41% (35 to 47%), which was significantly lower than those in the general population.

Conclusion

Our study results indicate that the homeless people remain highly susceptible to SARS-CoV-2 infection, but COVID-19 vaccination coverage was lower than the general population, underscoring the need for prioritizing vaccine deployment and implementing enhanced preventive measures targeting this vulnerable group.

Barriers and facilitators to health care access for people experiencing homelessness in four European countries: an exploratory qualitative study

BACKGROUND

People experiencing homelessness (PEH) are known to be at higher risk of adverse health outcomes and premature mortality when compared to the housed population and often face significant barriers when attempting to access health services. This study aimed to better understand the specific health care needs of PEH and the barriers and facilitators associated with their timely and equitable access to health services in the European context.

METHODS

We conducted an exploratory cross-national qualitative study involving people with lived experience of homelessness and health and social care professionals in Austria, Greece, Spain, and the UK. A total of 69 semi-structured interviews comprising 15 social care professionals, 19 health care professionals, and 35 PEH were completed, transcribed, and analysed thematically.

RESULTS

Findings were organised into three overarching themes relating to the research question: (a) Health care needs of PEH, (b) Barriers to health care access, and (c) Facilitators to health care access. Overall, the general health of PEH was depicted as extremely poor, and mainstream health services were portrayed as ill-equipped to respond to the needs of this population. Adopting tailored approaches to care, especially involving trusted professionals in the delivery of care, was identified as a key strategy for overcoming existing barriers.

CONCLUSIONS

The results of this study indicate there to be a high degree of consistency in the health care needs of PEH and the barriers and facilitators associated with their access to health care across the various European settings. Homelessness in itself is recognized to represent an essential social determinant of health, with PEH at risk of unequal access to health services. Changes are thus required to facilitate PEH's access to mainstream primary care. This can also be further complemented by investment in 'in-reach' services and other tailored and person-centred forms of health care.

TRIAL REGISTRATION

This study was registered retrospectively on June 6, 2022, in the registry of ClinicalTrials.gov under the number NCT05406687.

A study of analysis on prevalence, serological marker and prognosis of tuberculosis in tertiary care hospital

BACKGROUND

Tuberculosis is an infectious disease responsible for a significant cause of ill health. According to the WHO global tuberculosis report 2021. 9.9 million cases fell sick with TB in 2020. Significantly, the prevalence of tuberculosis in India is 25%.

OBJECTIVE

To analyze the prevalence of tuberculosis in the suburban areas of the metropolitan city in South India. To analyze the serological marker and prognosis of tuberculosis among males and females. To determine the importance of molecular testing - PCR confirmation on TB after AFB smear.

METHODS

A retrospective study to analyze 462 patients enrolled by the respiratory medicine department on suspecting pulmonary- 356 (M-264 & F-92) and extra-pulmonary-106 (M-73&F-33) patients and diagnosed Zhiel-Neelsen staining, Mantoux test, Chip-based RT-PCR test, Erythrocyte sedimentation rate, and analyzed serological test such as C-Reactive Protein, Chemiluminescence immune assay.

RESULTS

23 patients were positive in Ziehl-Neelsen staining, 65 were positive in molecular True-Nat PCR test, Mantoux skin test induration in 10 patients, 98 TB Positive patients examined in the serological analysis, 1 & 3 patients reacted in HIV/HBsAg, and HBsAg test respectively, by chemiluminescence immunoassay, 8 PTB and 4 EPTB and 47 non-TB patients were positive in C-reactive protein, 46 TB and 94 non-TB patients detected abnormal values out of these 160 patients in ESR test.

CONCLUSION

The Prevalence of tuberculosis is significantly rising, especially in the middle-aged population. The rapid molecular diagnostics to detect TB are highly sensitive and specific. Serological markers are essential for the analysis of disease prognosis and need to focus on the guidance of DOTS and RNTCP to End TB.

Prevalence of comorbid disease and associated risk factors among homeless people living in temporary shelters during the COVID-19 lockdown in Tshwane, South Africa

BACKGROUND

People experiencing homelessness are among the most socially and medically vulnerable populations.

OBJECTIVES

To assess the prevalence of comorbid disease and associated risk factors among homeless people admitted to temporary shelters in the City of Tshwane during levels 4 and 5 of the COVID-19 national lockdown in South Africa.

METHODS

A descriptive cross-sectional study design was used. The sample was drawn from secondary data on all individuals placed in temporary shelters constructed by Tshwane during levels 4 and 5 of the COVID-19 lockdown (26 March - 31 May 2020). Descriptive statistics were used to summarise data, and a multivariable logistic regression model was applied to determine factors associated with comorbid disease.

RESULTS

The overall prevalence of comorbid disease among homeless people in temporary shelters in Tshwane was 28.8% (95% confidence interval (CI) 26.9 - 30.8). There was no significant difference in the prevalence of comorbid disease by illicit substance use (29.9% for users v. 29.5% for non-users; p=0.871). In adjusted analyses, being South African (adjusted odds ratio (aOR) 2.06; 95% CI 1.10 - 3.88; p=0.024), being female (aOR 3.73; 95% CI 1.85 - 7.53; p<0.001), being black (aOR 3.43; 95% CI 1.12 - 10.54; p=0.031) or white (aOR 6.11; 95% CI 1.55 - 24.0; p=0.01), and injecting substances (aOR 1.68; 95% CI 1.19 - 2.37; p=0.003) were significantly associated with having comorbid disease.

CONCLUSION

The study found a 28.8% prevalence of comorbid disease among homeless people placed in temporary shelters in Tshwane. In adjusted analysis, being South African, being female, black and white race, and injecting substances were associated with having comorbid disease. Strengthening of public health interventions such as needle and syringe exchange programmes, family planning and access to primary care with health education could improve the healthcare of people experiencing homelessness.

Homeless people's recovery in Housing First and Traditional Services: The role of working alliance in Italian housing services

This study aims to investigate whether a working alliance could represent a potential mechanism that explains the effectiveness of housing services in terms of user recovery, comparing the Housing First (HF) model with Traditional Services (TS). This study included 59 homeless service users in Italy (29 = HF; 30 = TS). Recovery was assessed upon entering the study (T0) and after 10 months (T1). Results indicate that participants inserted in HF services were more likely to report stronger working alliances with social service providers at T0 that, in turn, was directly associated with higher levels of users' recovery at the beginning of the study and indirectly (through recovery at T0) with recovery at T1. Implications of the results are discussed with respect to research and practice on homeless services.

Assessing the coverage and timeliness of coronavirus vaccination among people experiencing homelessness in Wales, UK: a population-level data-linkage study

BACKGROUND

People experiencing homelessness have elevated morbidity, increasing their risk of COVID-19 related complications and mortality. Achieving high vaccination coverage in a timely manner among homeless populations was therefore important during the mass vaccination programme in Wales to limit adverse outcomes. However, no systematic monitoring of vaccinations among people experiencing homelessness in Wales has been undertaken.

METHODS

Retrospective cohort analysis was conducted using de-identified administrative data. Study cohort members were adults (≥ 18 years old) living in Wales on the 2 December 2020 and who had recently experienced homelessness, defined as experiencing homelessness between 1 July 2020 and 2 December 2020. The outcome of interest was first coronavirus vaccine dose. Follow-up started on 2 December 2020, and ended if the participant died, had a break in address history > 30 days, reached the end of follow up (30 November 2021), or had the outcome of interest. Median-time-to-vaccination was used as a crude measure of 'timeliness' of vaccine uptake. To account for competing risk of death prior to vaccination, vaccine coverage was described using cumulative incidence at 350-days, and at 50-day increments over follow-up (2 December 2020 to 17 November 2021). As a benchmark, all time-to-event measures were generated for the adult population in Wales with similar baseline individual and residential characteristics as the study cohort.

RESULTS

1,595 people with recent experiences of homelessness were identified and included in analysis. The study cohort were disproportionately male (68.8%) and concentrated in the most deprived areas in Wales. Median time-to-vaccination for the study cohort was 196 days (95% CI.: 184-209 days), compared to 141 days (95% CI.: 141-141 days) among the matched adult population in Wales. Cumulative incidence of vaccination after 350-days of follow-up was 60.4% (95% CI.: 57.8-62.8%) among the study cohort, compared to 81.4% (95% CI.: 81.3-81.5%) among the matched adult population. Visual analysis of cumulative incidence over time suggests that vaccine inequality, i.e., difference between study cohort and matched adult population, peaked after 200-days of follow-up, and declined slightly until last follow-up at 350-days.

CONCLUSIONS

Despite being prioritised for vaccination, people experiencing homelessness in Wales appear to have been under-engaged, leading to lower vaccination coverage and greater time unvaccinated, potentially increasing their risk of COVID-19 complications and mortality.

A Pragmatic Randomized Controlled Trial of Financial Incentives in Case Management for Homeless Adults With Mental Illness

OBJECTIVE

Financial incentives can facilitate behavior change and service engagement in health care settings, but research on their use with adults experiencing homelessness is limited. This study examined the effectiveness of financial incentives in improving service engagement and health outcomes among homeless adults with mental illness in Toronto.

METHODS

The authors of this randomized controlled trial recruited 176 participants receiving brief multidisciplinary case management services for homeless adults with mental illness after hospital discharge. In a 1:1 randomization design, 87 participants received a financial incentive of CAN$20 for every week they remained engaged with the service for up to 6 months. The remaining 89 participants received treatment as usual. The primary outcome was service contact rates for up to 6 months of follow-up. Secondary outcomes included self-reported health status, mental health symptoms, substance use, quality of life, housing stability, acute health service use, and working alliance. Negative binomial regression models, analyses of covariance, generalized estimating equations models, and Wilcoxon rank sum tests were used to examine differences between the financial incentive and treatment-as-usual groups across outcomes of interest.

RESULTS

No significant differences were found between the financial incentive and treatment-as-usual groups in service contact rates or any of the secondary outcomes examined over the 6-month period.

CONCLUSIONS

In low-barrier, brief case management programs tailored to the needs of adults experiencing homelessness, financial incentives may not affect service engagement or health outcomes. Further research is needed to identify the effect of financial incentives on engagement in other services, including housing-based interventions.

Determinants of depression and anxiety in homeless people: A population survey of homeless people in Hong Kong

BACKGROUND

There are growing concerns about the homeless and mental health issues globally. This study aims to examine the mental health situation of homelessness and the determinants of anxiety and depression of them in Hong Kong.

METHOD

The data from the largest territory-wide study of the homeless population in 2021 was analyzed. Descriptive statistics and logistic regressions were used to investigate the association between mental health and socioeconomic variables, including demographic background, economic indicators, COVID-19 worries, government measures, and respect by others. The symptoms of depression and anxiety were assessed using Patient Health Questionnaire (PHQ) and General Anxiety Disorder (GAD).

RESULTS

The results showed that being female, food insecurity, and chronic diseases were the risk factors for anxiety and depression. A high level of respect by others was the protective factor for depression (adjusted OR 0.37, 95% CI [0.23, 0.61]) and anxiety (adjusted OR 0.40, 95% CI [0.24, 0.68]), compared to a low level of respect in the multivariate model.

CONCLUSIONS

Providing medical outreach services, additional resources for social services, implementation of homeless-friendly policies, and a progressive supply of public and transitional housing would help enhance the well-being of the homeless population.

The Impact of Homelessness, Substance Use, and Mental Illness on Surgical Inpatient Outcomes in Australia

This study investigated inpatient surgical outcomes for people experiencing homelessness (PEH) in Australia. Retrospective administrative health data of emergency surgical admissions from a single center over five years, 2015 to 2020, was included. Independent associations between factors and outcomes were analyzed with binary logistic and log-linear regression. Of 11 229 admissions, 2% were experiencing homelessness. People experiencing homelessness were on average younger (49 vs 56 years), more likely to be males than females (77% vs 61%), suffer mental illness (10% vs 2%), and substance use disorders (54% vs 10%). People experiencing homelessness were not more likely to suffer surgical complications. However, male sex, older age, mental illness, and substance use were risk factors for poor surgical outcomes. Homelessness predicted greater odds of discharge against medical advice (4.3 times) and longer length of stay (1.25 times). These results highlighted the need for health interventions simultaneously addressing physical, mental health, and substance use issues in the care of PEH.

Integrated cognitive behavioral treatment for substance use and depressive symptoms: a homeless case series and feasibility study

BACKGROUND

Homelessness is associated with high prevalence of psychiatric disorders such as substance use disorders, including alcohol use disorder, and depression.

METHODS

This case series and feasibility trial evaluated a novel integrated cognitive behavioral treatment (ICBT), which was adapted specifically for homeless individuals and developed to treat substance use and depressive symptoms simultaneously. The ICBT was delivered among four homeless individuals enrolled in the Treatment First program (a social services program where treatment is offered in conjunction with temporary transitional housing), who had access to stable and sober housing milieus.

RESULTS

The ICBT was rated high in expectancy of improvement, credibility, and satisfaction, with few treatment-related adverse events, and fairly high treatment retention. At 12 months follow-up, three of four participants were not homeless anymore. Some participants experienced short-term reductions in substance use and/or depressive symptoms.

CONCLUSIONS

The study provided preliminary support that the ICBT can be a feasible and potentially effective treatment for homeless individuals with substance use and/or depressive symptoms. However, the delivery format within the Treatment First program was not feasible. The ICBT could be offered within the social services Housing First program instead (where permanent housing is offered before treatment), or to non-homeless individuals.

TRIAL REGISTRATION

The study was registered retrospectively at ClinicalTrials.gov (NCT05329181).

Addressing the needs of Ethiopia's street homeless women of reproductive age in the health and social protection policy: a qualitative study

INTRODUCTION

Globally, homelessness is a growing concern, and homeless women of reproductive age are particularly vulnerable to adverse physical, mental, and reproductive health conditions, including violence. Although Ethiopia has many homeless individuals, the topic has received little attention in the policy arena. Therefore, we aimed to understand the reason for the lack of attention, with particular emphasis on women of reproductive age.

METHODS

This is a qualitative study; 34 participants from governmental and non-governmental organisations responsible for addressing homeless individuals' needs participated in in-depth interviews. A deductive analysis of the interview materials was applied using Shiffman and Smith's political prioritisation framework.

RESULTS

Several factors contributed to the underrepresentation of homeless women's health and well-being needs in the policy context. Although many governmental and non-governmental organisations contributed to the homeless-focused programme, there was little collaboration and no unifying leadership. Moreover, there was insufficient advocacy and mobilisation to pressure national leaders. Concerning ideas, there was no consensus regarding the definition of and solution to homeless women's health and social protection issues. Regarding political contexts and issue characteristics, a lack of a well-established structure, a paucity of information on the number of homeless women and the severity of their health situations relative to other problems, and the lack of clear indicators prevented this issue from gaining political priority.

CONCLUSIONS

To prioritise the health and well-being of homeless women, the government should form a unifying collaboration and a governance structure that addresses the unmet needs of these women. It is imperative to divide responsibilities and explicitly include homeless people and services targeted for them in the national health and social protection implementation documents. Further, generating consensus on framing the problems and solutions and establishing indicators for assessing the situation is vital.

Hepatitis C care cascade among patients with and without tuberculosis: Nationwide observational cohort study in the country of Georgia, 2015-2020

BACKGROUND

The Eastern European country of Georgia initiated a nationwide hepatitis C virus (HCV) elimination program in 2015 to address a high burden of infection. Screening for HCV infection through antibody testing was integrated into multiple existing programs, including the National Tuberculosis Program (NTP). We sought to compare the hepatitis C care cascade among patients with and without tuberculosis (TB) diagnosis in Georgia between 2015 and 2019 and to identify factors associated with loss to follow-up (LTFU) in hepatitis C care among patients with TB.

METHODS AND FINDINGS

Using national ID numbers, we merged databases of the HCV elimination program, NTP, and national death registry from January 1, 2015 to September 30, 2020. The study population included 11,985 adults (aged ≥18 years) diagnosed with active TB from January 1, 2015 through December 31, 2019, and 1,849,820 adults tested for HCV antibodies between January 1, 2015 and September 30, 2020, who were not diagnosed with TB during that time. We estimated the proportion of patients with and without TB who were LTFU at each step of the HCV care cascade and explored temporal changes. Among 11,985 patients with active TB, 9,065 (76%) patients without prior hepatitis C treatment were tested for HCV antibodies, of which 1,665 (18%) had a positive result; LTFU from hepatitis C care was common, with 316 of 1,557 (20%) patients with a positive antibody test not undergoing viremia testing and 443 of 1,025 (43%) patients with viremia not starting treatment for hepatitis C. Overall, among persons with confirmed viremic HCV infection, due to LTFU at various stages of the care cascade only 28% of patients with TB had a documented cure from HCV infection, compared to 55% among patients without TB. LTFU after positive antibody testing substantially decreased in the last 3 years, from 32% among patients diagnosed with TB in 2017 to 12% among those diagnosed in 2019. After a positive HCV antibody test, patients without TB had viremia testing sooner than patients with TB (hazards ratio [HR] = 1.46, 95% confidence intervals [CI] [1.39, 1.54], p < 0.001). After a positive viremia test, patients without TB started hepatitis C treatment sooner than patients with TB (HR = 2.05, 95% CI [1.87, 2.25], p < 0.001). In the risk factor analysis adjusted for age, sex, and case definition (new versus previously treated), multidrug-resistant (MDR) TB was associated with an increased risk of LTFU after a positive HCV antibody test (adjusted risk ratio [aRR] = 1.41, 95% CI [1.12, 1.76], p = 0.003). The main limitation of this study was that due to the reliance on existing electronic databases, we were unable to account for the impact of all confounding factors in some of the analyses.

CONCLUSIONS

LTFU from hepatitis C care after a positive antibody or viremia test was high and more common among patients with TB than in those without TB. Better integration of TB and hepatitis C care systems can potentially reduce LTFU and improve patient outcomes both in Georgia and other countries that are initiating or scaling up their nationwide hepatitis C control efforts and striving to provide personalized TB treatment.

Prevalence of pulmonary tuberculosis in homeless individuals in the Addis Ababa City, Ethiopia

Background

Homeless individuals are at a high risk of infection with Mycobacterium tuberculosis (M. tuberculosis) as compared to the general population. The number of homeless individuals has been increasing in Addis Ababa City during the last three decades due to the migration of rural inhabitants to the City for better living conditions. The objective of this study was to estimate the prevalence of pulmonary tuberculosis (PTB) and evaluate associated risk factors in homeless individuals in Addis Ababa City.

Methods

A total of 5,600 homeless individuals were screened for PTB symptoms using WHO guideline between February 2019 and December 2020. Sputum samples were cultured from individuals with symptoms of PTB for mycobacterial isolation. Logistic regression analysis was used to identify factors associated with PTB.

Results

The prevalence of bacteriologically confirmed cases was 1.1% (59/5,600) or 10.54 per 1000 population. Multinomial logistic regression analysis showed that being homeless for more than 5 years, body mass index (BMI) &lt; 18.5, smoking cigarette, living in a group of more than five individuals, close contact with chronic coughers, imprisonment and HIV infection were significantly associated with the prevalence of PTB in homeless individuals (P &lt; 0.05).

Conclusion

In conclusion, the result of this study indicated that the prevalence of PTB in homeless individuals was higher than the prevalence of PTB in the general population of Addis Ababa City requiring for the inclusion of the homeless individuals in the TB control program.

Health inequalities in infectious diseases: a systematic overview of reviews

OBJECTIVES

The aim of this systematic overview of reviews was to synthesise available evidence on inequalities in infectious disease based on three dimensions of inequalities; inclusion health groups, protected characteristics and socioeconomic inequalities.

METHODS

We searched MEDLINE, Embase, Web of Science and OpenGrey databases in November 2021. We included reviews published from the year 2000 which examined inequalities in the incidence, prevalence or consequences of infectious diseases based on the dimensions of interest. Our search focused on tuberculosis, HIV, sexually transmitted infections, hepatitis C, vaccination and antimicrobial resistance. However, we also included eligible reviews of any other infectious diseases. We appraised the quality of reviews using the Assessment of Multiple Systematic Reviews V.2 (AMSTAR2) checklist. We conducted a narrative data synthesis.

RESULTS

We included 108 reviews in our synthesis covering all the dimensions of inequalities for most of the infectious disease topics of interest, however the quality and volume of review evidence and consistency of their findings varied. The existing literature reviews provide strong evidence that people in inclusion health groups and lower socioeconomic status are consistently at higher risk of infectious diseases, antimicrobial resistance and incomplete/delayed vaccination. In the protected characteristics dimension, ethnicity, and sexual orientation are important factors contributing to inequalities across the various infectious disease topics included in this overview of reviews.

CONCLUSION

We identified many reviews that provide evidence of various types of health inequalities in different infectious diseases, vaccination, and antimicrobial resistance. We also highlight areas where reviews may be lacking. The commonalities in the associations and their directions suggest it might be worth targeting interventions for some high risk-groups that may have benefits across multiple infectious disease outcomes rather than operating purely in infectious disease siloes.

The role of community pharmacies in the HIV and HCV care continuum

Introduction

In 2019, there were over 1.1 million people living with human immunodeficiency virus (HIV) and 2.4 million people living with hepatitis C virus (HCV) in the United States. One in seven (14%) are unaware of their HIV infection and almost half of all HCV infections are undiagnosed. People with unstable housing are disproportionately affected by HIV and HCV. The present study will evaluate interventions by community pharmacists that may reduce HIV and HCV transmission and promote linkage to care.

Methods

This study was conducted in an independent community pharmacy in Spokane, Washington. Eligible study participants were walk-in patients of the pharmacy, over the age of 18, and experiencing homelessness. Pharmacy patients were excluded if they had a history of HIV or HCV diagnosis, received a screening for HIV or HCV in the last six months or were unable to give informed consent. The intervention included administration of HIV and HCV point-of-care testing (POCT) using a blood sample, risk determination interview, comprehensive HIV and HCV education, and personalized post-test and risk mitigation counseling followed by referral to partnering health clinics.

Results

Fifty participants were included in the final data analysis. Twenty-two participants (44%) had a reactive HCV POCT, and one participant had a reactive HIV POCT. Of the 94% of participants who reported illicit drug use, 74% reported injection drug use. Seventy-six percent (n = 38) qualified for PrEP. Pharmacist referrals were made for 28 participants and 71% were confirmed to have established care.

Conclusion

Individuals experiencing homelessness are at an increased risk for acquiring HIV and HCV due to risky sexual behaviors and substance misuse. PrEP is underutilized in the U.S. and pharmacist involvement in the HIV and HCV care continuum may have a significant impact in improving linkage and retention in care of difficult to treat populations.

Outbreak of tuberculosis in internet cafes amongst young internal migrants without fixed abode in Shanghai, China, 2018-2019

We reported an outbreak of tuberculosis in internet cafes amongst young migrants without fixed abode in Shanghai. Our results implied these populations of young migrants who get lost in the internet cafes of the big cities were at high risk for TB transmission and need more attention from health-care system.

The Impact of COVID-19 on Access to Resources among Individuals Experiencing Homelessness and Traumatic Brain Injury

The rates of traumatic brain injury (TBI) are higher among individuals experiencing homelessness compared with the general population. Individuals experiencing homelessness and a TBI may experience barriers to care. COVID-19 may have further impacted access to basic resources, such as food, shelter, and transportation for individuals experiencing homelessness. This study aimed to answer the following research question: What is the impact of COVID-19 on access to resources among individuals experiencing homelessness and TBI? A cross-sectional study design and purposive sampling were utilized to interview 38 English-speaking adults experiencing homelessness and who had sustained a TBI (ages 21–73) in one Colorado city. Qualitative questions related to the impact of COVID-19 were asked and qualitative analysis was used to analyze the responses. Three primary themes emerged regarding the types of resources that were restricted by COVID-19: basic/biological needs, financial needs, and a lack of connection. COVID-19 has shown the social work field the need for continued innovation and better practice standards for individuals who are not housed. For those living with a reported TBI history and experiencing homelessness, COVID-19 made it difficult to access basic services for survival.

Differential age-associated brain atrophy and white matter changes among homeless and precariously housed individuals compared with the general population

Background

Homeless or precariously housed individuals live with poor health and experience premature mortality compared with the general population, yet little is known about age-related brain changes among these individuals. We evaluated whether MRI measures of brain structure are differentially associated with age and selected risk factors among individuals who are homeless or precariously housed compared with a general population sample.

Methods

We compared T1-weighted and diffusion tensor imaging measures of brain macrostructure and white matter microstructure in a well-characterised sample of 312 precariously housed participants with a publicly available dataset of 382 participants recruited from the general population. We used piecewise and multiple linear regression to examine differential associations between MRI measures and between the samples, and to explore associations with risk factors in the precariously housed sample.

Results

Compared with the general population sample, older age in the precariously housed sample was associated with more whole-brain atrophy (β=-0.20, p=0.0029), lower whole-brain fractional anisotropy (β=-0.32, p<0.0001) and higher whole-brain mean diffusivity (β=0.69, p<0.0001). Several MRI measures had non-linear associations with age, with further adverse changes after age 35-40 in the precariously housed sample. History of traumatic brain injury, stimulant dependence and heroin dependence was associated with more atrophy or alterations in white matter diffusivity in the precariously housed sample.

Conclusions

Older age is associated with adverse MRI measures of brain structure among homeless and precariously housed individuals compared with the general population. Education, improvements in care provision and policy may help to reduce the health disparities experienced by these individuals.

We Are Still Here: Living with HIV in the UK

In this article we highlight a number of the ongoing challenges faced by people living with HIV in the UK today (2021). Based on in-depth interviews with 23 respondents drawn from a range of ages, backgrounds and walks of life, we offer an insight into deeply personal experiences of what it means to have HIV. We demonstrate the degree to which, 40 years on from the formal emergence of the HIV pandemic, stigma and related structural violence remain both extremely present and extraordinarily debilitating. In essence, social responses to HIV remain mired in a past age.

Respiratory infectious disease outbreaks among people experiencing homelessness: a systematic review of prevention and mitigation strategies

PURPOSE

People experiencing homelessness (PEH) are at increased risk of respiratory infections and associated morbidity and mortality. To characterize optimal intervention strategies, we completed a systematic review of mitigation strategies for PEH to minimize the spread and impact of respiratory infectious disease outbreaks, including COVID-19.

METHODS

The study protocol was registered in PROSPERO (#2020 CRD42020208964) and was consistent with the preferred reporting in systematic reviews and meta-analyses guidelines. A search algorithm containing keywords that were synonymous to the terms "Homeless" and "Respiratory Illness" was applied to the six databases. The search concluded on September 22, 2020. Quality assessment was performed at the study level. Steps were conducted by two independent team members.

RESULTS

A total of 4468 unique titles were retrieved with 21 meeting criteria for inclusion. Interventions included testing, tracking, screening, infection prevention and control, isolation support, and education. Historically, there has been limited study of intervention strategies specifically for PEH across the world.

CONCLUSIONS

Staff and organizations providing services for people experiencing homelessness face specific challenges in adhering to public health guidelines such as physical distancing, isolation, and routine hygiene practices. There is a discrepancy between the burden of infectious diseases among PEH and specific research characterizing optimal intervention strategies to mitigate transmission in the context of shelters. Improving health for people experiencing homelessness necessitates investment in programs scaling existing interventions and research to study new approaches.

Innovative Approaches to Engaging Homeless and Marginally Housed Patients in Care: a Case Study of Hepatitis C

BACKGROUND

Homeless and marginally housed (HAMH) individuals experience significant health disparities compared to housed counterparts, including higher hepatitis C virus (HCV) rates. New direct-acting antiviral (DAA) medications dramatically increased screening and treatment rates for HCV overall, but inequities persist for HAMH populations.

OBJECTIVE

This study examines the range of policies, practices, adaptations, and innovations implemented by Veteran Affairs Medical Centers (VAMCs) in response to Veterans Health Administration (VHA)'s 2016 HCV funding allocation to expand provision of HCV care.

DESIGN

Ethnographic site visits to six US VAMCs varying in size, location, and availability of Homeless Patient-Aligned Care Teams. Semi-structured qualitative interviews informed by the HCV care continuum were conducted with providers, staff, and HAMH patients to elicit experiences providing and receiving HCV care. Semi-structured field note templates captured clinical care observations. Interview and observation data were analyzed to identify cross-cutting themes and strategies supporting tailored HCV care for HAMH patients.

PARTICIPANTS

Fifty-six providers and staff working in HCV and/or homelessness care (e.g., infectious disease providers, primary care providers, social workers). Twenty-five patients with varying homeless experiences, including currently, formerly, or at risk of homelessness (n=20) and stably housed (n=5).

KEY RESULTS

All sites experienced challenges with continued engagement of HAMH individuals in HCV care, which led to the implementation of targeted care strategies to better meet their needs. Across sites, we identified 35 unique strategies used to find, engage, and retain HAMH individuals in HCV care.

CONCLUSIONS

Despite highly effective, widely available HCV treatments, HAMH individuals continue to experience challenges accessing HCV care. VHA's 2016 HCV funding allocation resulted in rapid adoption of strategies to engage and retain vulnerable patients in HCV treatment. The strategies identified here can help healthcare institutions tailor and target approaches to provide sustainable, high-quality, equitable care to HAMH individuals living with HCV and other chronic illnesses.

Reducing Homelessness among Persons with HIV: An Ecological Case Study in Delaware

INTRODUCTION

Among persons with HIV (PWH), homelessness is associated with poorer health. From 2009-2014, national HIV prevention goals included a reduction in homelessness among PWH. We sought to examine social ecological factors associated with homelessness among PWH at a sub-national level during that period.

METHODS

National data were used to identify Delaware as the only jurisdiction where homelessness among PWH declined from 2009-2014. We analyzed population-level indicators and conducted telephone interviews with 6 key stakeholders to further examine this trend.

RESULTS

Overall homelessness, household poverty, and median housing price were associated with homelessness among PWH in Delaware. Key stakeholders indicated that centralized intake processes improved screening, referral, and linkages of clients to housing units.

DISCUSSION

In addition to social and economic factors, collaborative program strategies may improve housing outcomes for PWH. Monitoring trends at sub-national levels can help identify successful approaches as well as needed services or policy change.

What do Veterans with homeless experience want us to know that we are not asking? A qualitative content analysis of comments from a national survey of healthcare experience

Surveys of people who experience homelessness can portray their life and healthcare experiences with a level of statistical precision; however, few have explored how the very same surveys can deliver qualitative insights as well. In responding to surveys, people experiencing homelessness can use the margins to highlight health and social concerns that investigators failed to anticipate that standard question batteries miss. This study describes the unprompted comments of a large national survey of Veterans with homeless experiences. The Primary Care Quality-Homeless Services Tailoring (PCQ-HOST) survey presented 85 close-ended items to solicit social and psychological experiences, health conditions, and patient ratings of primary care. Amongst 5377 Veterans responding to the paper survey, 657 (12%) offered 1933 unprompted comments across nearly all domains queried. Using a team-based content analysis approach, we coded and organised survey comments by survey domain, and identified emergent themes. Respondents used comments for many purposes. They noted when questions called for more nuanced responses than those allowed, especially 'sometimes' or 'not applicable' on sensitive questions, such as substance use, where recovery status was not queried. On such matters, the options of 'no' and 'yes' failed to capture important contextual and historical information that mattered to respondents, such as being in recovery. Respondents also elaborated on negative and positive care experiences, often naming specific clinics or clinicians. This study highlights the degree to which members of vulnerable populations, who participate in survey research, want researchers to know the reasons behind their responses and topics (like chronic pain and substance use disorders) that could benefit from open-ended response options. Understanding patient perspectives can help improve care. Quantitative data from surveys can provide statistical precision but may miss key patient perspectives. The content that patients write into survey margins can highlight shortfalls of a survey and point towards future areas of inquiry. Veterans with homeless experience want to provide additional detail about their lives and care experiences in ways that transcend the boundaries of close-ended survey questions. Questions on substance use proved especially likely to draw comments that went beyond the permitted response options, often to declare that the respondent was in recovery. Respondents frequently clarified aspects of their care experiences related to pain, pain care, transportation and experiences of homelessness.

The Impact of Supportive Housing on Liver-Related Outcomes Among Persons With Hepatitis C Virus Infection

BACKGROUND

Hepatitis C virus (HCV) infection disproportionately impacts people experiencing homelessness. Hepatitis C virus can lead to negative health outcomes, including mortality. We evaluated the impact of a permanent supportive housing (PSH) program (ie, "treatment") on liver-related morbidity and mortality among persons with chronic homelessness and HCV infection.

METHODS

We matched records for persons eligible for a New York City PSH program (2007-2014) with Heath Department HCV and Vital Statistics registries and Medicaid claims. Among persons diagnosed with HCV before or 2 years posteligibility, we added stabilized inverse probability of treatment weights to negative binomial regression models to compare rates for liver disease-related emergency department visits and hospitalizations, and hazard ratios for mortality, by program placement 2 and 5 years posteligibility.

RESULTS

We identified 1158 of 8783 placed and 1952 of 19 019 unplaced persons with laboratory-confirmed HCV infection. Permanent supportive housing placement was associated with significantly reduced liver-related emergency department visits (adjusted rate ratio [aRR] = 0.76, 95% confidence interval [CI] = .61-.95), hospitalizations (aRR = 0.62, 95% CI = .54-.71), and all-cause (adjusted hazard ratio [aHR] = 0.65, 95% CI = .46-.92) and liver-related mortality (aHR = 0.72, 95% CI = .09-.83) within 2 years. The reduction remained significant for hospitalizations after 5 years.

CONCLUSIONS

Placement into PSH was associated with reduced liver-related morbidity and mortality among persons with HCV infection and chronic homelessness.

Invasive Meningococcal Disease Among People Experiencing Homelessness-United States, 2016-2019

BACKGROUND

Recently, several invasive meningococcal disease (IMD) outbreaks caused by Neisseria meningitidis have occurred among people experiencing homelessness (PEH). However, overall IMD risk among PEH is not well described. We compared incidence and characteristics of IMD among PEH and persons not known to be experiencing homelessness (non-PEH) in the United States.

METHODS

We analyzed 2016-2019 IMD data from the National Notifiable Diseases Surveillance System and enhanced meningococcal disease surveillance. Incidence was calculated using US census data and point-in-time counts from the US Department of Housing and Urban Development.

RESULTS

Of cases from states participating in enhanced surveillance during 2016-2019 (n = 1409), 45 cases (3.2%) occurred among PEH. Annual incidence was higher among PEH (2.12 cases/100 000) than non-PEH (0.11 cases/100 000; relative risk, 19.8; 95% confidence interval [CI], 14.8-26.7). Excluding outbreak-associated cases (PEH n = 18, 40%; non-PEH n = 98, 7.2%), incidence among PEH remained elevated compared to incidence in non-PEH (relative risk, 12.8; 95% CI, 8.8-18.8). Serogroup C was identified in 68.2% of PEH cases compared to 26.4% in non-PEH (P < .0001).

CONCLUSIONS

PEH are at increased risk for IMD. Further assessment is needed to determine the feasibility and potential impact of meningococcal vaccination for PEH in the United States.

[Analysis of the homeless population health in a disadvantaged district of Barcelona: ESSELLA study]

Objetivo

Conocer el estado de salud de la población sin hogar.

Diseño

Estudio descriptivo transversal.

Emplazamiento

Centro de Salud de Atención Primaria de Raval Sud (Barcelona).

Participantes

Personas mayores de edad en situación de sinhogarismo que han pernoctado en la calle en algún momento.

Mediciones principales

Datos sociodemográficos y tiempo en situación de sinhogarismo. Patologías crónicas, enfermedades infecciosas transmisibles, enfermedades mentales y trastornos por uso de sustancias adictivas. Cuestionario HAD sobre ansiedad y depresión. Cuestionario CVRS EQ-5D-3L. Estadística descriptiva.

Resultados

Se analizó la información de 146 pacientes con una media de edad de 51,6 años (DE = 12,8), 87% de sexo masculino y una media de 12 años (DE = 11,9) en situación de sinhogarismo. Se comparó la carga de enfermedad entre el perfil CAS Drogodependencias (Baluard) y el perfil sociosanitario (Arrels Fundació). Los usuarios del CAS presentaron mayores porcentajes de trastornos por uso de sustancias, enfermedades mentales y enfermedades infecciosas transmisibles. Las personas de perfil sociosanitario presentaron en mayor porcentaje enfermedades crónicas (respiratorias, cardiovasculares y oncológicas) y más de la mitad presentaron un trastorno por uso de alcohol y un mayor porcentaje de enfermedad asociada a su consumo.

Conclusiones

La población sin hogar presenta una elevada carga de enfermedad especialmente para enfermedad mental, adicciones y enfermedades infecciosas transmisibles. Creemos que son necesarios estudios para evaluar el exceso de enfermedad respecto a la población general con sus costes derivados y el diseño de nuevas estrategias para atender dicha carga de enfermedad y su especificidad.

Factors Associated With Hospital Readmission Among Patients Experiencing Homelessness

INTRODUCTION

Homelessness is associated with increased acute care utilization and poor healthcare outcomes. This study aims to compare hospital readmission rates among patients experiencing homelessness and patients who are not homeless and assess the impact of different clinical and demographic characteristics on acute care utilization among patients experiencing homelessness.

METHODS

This was a retrospective study of patients encountered in 2018 and 2019 at ChristianaCare Health Systems. The analysis was done in August 2021. The prevalence of major chronic conditions among patients experiencing homelessness (n=1,329) and those not experiencing it (n=143,360) was evaluated. Patients experiencing homelessness were matched with nonhomeless patients using 1:1 propensity score matching. Time-to-event analysis approaches were used to analyze time-to-readmission and 30-day readmission rates.

RESULTS

The 30-day readmission rates were 42.8% among patients experiencing homelessness and 19.9% among matched patients not experiencing homelessness. The hazard of 30-day readmission among patients experiencing homelessness was 2.6 (95% CI=1.93, 3.53) times higher than that among the matched nonhomeless cohort. In patients experiencing homelessness, drug use disorder, major depressive disorder, chronic kidney disease, obesity, arthritis, HIV/AIDS, and epilepsy were associated with shortened time to readmission. Moreover, Black racial identity was associated with shortened time to readmission.

CONCLUSIONS

Patients experiencing homelessness had higher acute care utilization than those not experiencing homelessness. Black racial identity and several comorbidities were associated with increased acute care utilization among patients experiencing homelessness. Efforts to address upstream social determinants of health, destigmatization, and healthcare management accounting for the whole spectrum of clinical comorbidities might be important in promoting the health of people experiencing homelessness.

Chronic diseases and multi-morbidity in persons experiencing homelessness: results from a cross-sectional study conducted at three humanitarian clinics in Germany in 2020

BACKGROUND

Persons experiencing homelessness (PEH) suffer a high burden of chronic diseases and multi-morbidity, yet face significant barriers in accessing healthcare services. These health inequalities were further aggravated during the COVID-19 pandemic. While there is a lack of comprehensive health data on PEH, even less is known about populations experiencing housing exclusion, a hidden form of homelessness. This study examines and compares chronic diseases and multi-morbidity in PEH, persons experiencing housing exclusion, and persons with secure housing who lacked access to regular healthcare services in the wake of the COVID-19 pandemic in Germany.

METHODS

Study participants were adults who sought medical care at clinics of the humanitarian organisation "Ärzte der Welt" in Munich, Hamburg and Berlin in 2020. The patients were categorised into three housing groups according to the ETHOS classification of homelessness and housing exclusion. Socio-demographic characteristics, self-rated health, chronic diseases and multi-morbidity were described in each group. Logistic regression analysis was used to identify socio-demographic factors associated with higher odds of chronic diseases and multi-morbidity in each housing group.

RESULTS

Of the 695 study participants, 333 experienced homelessness, 292 experienced housing exclusion and 70 had secure housing. 92.3% of all patients had either no or limited health coverage, and 96.7% were below the poverty line. Males and EU/EEA citizens were highly represented among PEH (74.2% and 56.8% respectively). PEH had lower self-rated health (47.8%, p = 0.04), and a higher prevalence of psychiatric illness (20.9%, p = 0.04). In adjusted analyses, belonging to the age group 35-49 and ≥ 50 years were associated with greater odds of chronic disease (AOR = 2.33, 95% CI = 1.68-3.24; AOR = 3.57, 95% CI = 2.55-5.01, respectively) while being ≥ 50 years old was associated with multi-morbidity (AOR = 2.01, 95% CI = 1.21, 3.33). Of the 18 participants tested for SARS-COV-2, 15 were PEH, 1 of whom tested positive.

CONCLUSIONS

Housing status was not an independent risk factor for chronic disease and multi-morbidity in our study population. However, PEH reported poorer self-rated and psychiatric health. Strategies to improve access to healthcare services amongst persons experiencing homelessness and housing exclusion are needed in Germany.

Hepatitis C virus risk among young people who inject drugs

Background

Injection drug use (IDU) is the leading risk factor for hepatitis C virus (HCV) transmission in the U.S. While the general risk factors for HCV transmission are known, there is limited work on how these factors interact and impact young people who inject drugs (YPWID).

Methods

Project data were drawn from a study of 539 New York City (NYC) residents ages 18-29 who were recruited via Respondent-Driven Sampling and, reported past-month non-medical use of prescription opioids and/or heroin. Analyses are based on a subsample of 337 (62%) who reported injecting any drug in the past 12 months. All variables were assessed via self-report, except HCV status, which was established via rapid antibody testing. Integrating the observed statistical associations with extant literature on HCV risk, we also developed a qualitative system dynamics (SD) model to use as a supplemental data visualization tool to explore plausible pathways and interactions among key risk and protective factors for HCV.

Results

Results showed a 31% HCV antibody prevalence with an overall incidence of 10 per 100 person-years. HCV status was independently correlated with having shared cookers with two or more people (AOR = 2.17); injected drugs 4–6 years (AOR = 2.49) and 7 or more years (AOR = 4.95); lifetime homelessness (AOR = 2.52); and having been incarcerated two or more times (AOR = 1.99). These outcomes along with the extant literature on HCV risk were used to develop the qualitative SD model, which describes a causal hypothesis around non-linearities and feedback loop structures underlying the spread of HCV among YPWID.

Conclusions

Despite ongoing harm reduction efforts, close to a third of YPWID in the community sample have been exposed to HCV, have risks for injection drug use, and face challenges with structural factors that may be preventing adequate intervention. The qualitative SD model explores these issues and contributes to a better understanding of how these various risk factors interact and what policies could potentially be effective in reducing HCV infections.

Viral blood-borne infections testing and linkage to care cascade among persons who experience homelessness in the United States: a systematic review and meta-analysis

BACKGROUND

Persons who experience homelessness remain at increased risk for three viral blood-borne infections: human immunodeficiency virus (HIV), hepatitis B virus (HBV), and hepatitis C virus (HCV). We assessed the yield of testing and linkage to care programs targeting this population for these infections in the United States (US).

METHODS

We searched PubMed, Embase, Web of Science, and Cochrane Central for peer-reviewed articles through August 27, 2020. Additionally, we searched the grey literature. Two individuals independently reviewed all relevant studies to check for eligibility and extracted data for each step in the care cascade. We used random-effects model to generate weighted pooled proportions to assess yield at each step. Cumulative proportions were calculated as products of adjacent-step pooled proportions. We quantitatively synthesized data from the studies that focused on non-drug injecting individuals.

RESULTS

We identified 24 studies published between 1996-2019 conducted in 19 US states. Seventeen studies screened for HIV, 12 for HCV, and two screened for HBV. For HIV, 72% of approached were recruited, 64% had valid results, 4% tested positive, 2% were given results, and 1% were referred and attended follow-up. Of positives, 25% were referred to treatment and started care. For HCV, 69% of approached were recruited, 63% had valid results, 16% tested positive, 14% were given results, and 3% attended follow-up. Of positives, 30% were referred for treatment and 19% started care. The yield at each care cascade step differs widely by recruitment strategy (for example, for HIV: 71.6% recruited of reached under service-based with zero yield under healthcare facility-based and outreach).

CONCLUSIONS

A very large proportion of this population reached for HIV and HCV care were lost in the follow-up steps and never received treatment. Future programs should examine drop-out reasons and intervene to reduce health disparities in this population.

Homelessness and health-related outcomes: an umbrella review of observational studies and randomized controlled trials

BACKGROUND

Homelessness has been associated with multiple detrimental health outcomes across observational studies. However, relatively few randomized controlled trials (RCTs) have been conducted on people who experience homelessness (PEH). Thus, this umbrella review ranked the credibility of evidence derived from systematic reviews (SRs) and meta-analyses (MAs) of observational studies investigating the associations between homelessness and any health outcome as well as RCTs targeting health needs in this population.

METHODS

Several databases were systematically searched from inception through April 28, 2021. Any SR and/or MA reporting quantitative data and providing a control group were eligible for inclusion. The credibility of the evidence derived from observational studies was appraised by considering the significance level of the association and the largest study, the degree of heterogeneity, the presence of small-study effects as well as excess significance bias. The credibility of evidence was then ranked in five classes. For SRs and/or MAs of RCTs, we considered the level of significance and whether the prediction interval crossed the null. The AMSTAR-2 and AMSTAR-plus instruments were adopted to further assess the methodological quality of SRs and/or MAs. The Newcastle-Ottawa Scale (NOS) was employed to further appraise the methodological quality of prospective cohort studies only; a sensitivity analysis limited to higher quality studies was conducted.

RESULTS

Out of 1549 references, 8 MAs and 2 SRs were included. Among those considering observational studies, 23 unique associations were appraised. Twelve of them were statistically significant at the p≤0.005 level. Included cases had worst health-related outcomes than controls, but only two associations reached a priori-defined criteria for convincing (class I) evidence namely hospitalization due to any cause among PEH diagnosed with HIV infection, and the occurrence of falls within the past year among PEH. According to the AMSTAR-2 instrument, the methodological quality of all included SRs and/or MAs was "critically low." Interventional studies were scant.

CONCLUSION

While homelessness has been repeatedly associated with detrimental health outcomes, only two associations met the criteria for convincing evidence. Furthermore, few RCTs were appraised by SRs and/or MAs. Our umbrella review also highlights the need to standardize definitions of homelessness to be incorporated by forthcoming studies to improve the external validity of the findings in this vulnerable population.

Profile of homeless people in emergency departments

OBJECTIVES

For homeless people, emergency departments (ED) are the place of medical care and satisfying physiological, safety and social needs. The treatment of the homeless in EDs is a common issue in many countries. The aim of study was to analyze selected parameters of health care to homeless people in EDs. The authors examined the frequency and the seasonality of admissions, their causes, stay duration, insurance status, and the type of radiological diagnostics performed.

MATERIAL AND METHODS

A retrospective analysis of stays of homeless patients in 3 EDs in one of the largest cities in Poland in 2013-2015 was carried out. Patients were qualified to the population of homeless people based of their registering in ED. Data was obtained on the total number of homeless patients' stays in all 3 EDs, which amounted to 3133.

RESULTS

During the 3 years of analysis: 1042 homeless individuals were identified staying 3133 times in EDs; 46.3% of the stays concerned uninsured homeless people; 31% were under influence of alcohol. On average, men used ED services 3 times, while women only twice. No significant seasonality of admissions was observed. Homeless people were admitted mainly for mental disorders and head injuries. Radiological tests were performed 1577 times, including 83% being CT scans. On average, women and those >30 stayed in EDs for the shortest time. The hospital wards admitted 9.3% of the patients.

CONCLUSIONS

Almost half of homeless patients repeatedly use ED services, regardless of the season. A patient's stay typically lasts 6 h. Half of them were uninsured. The main reasons for admission include mental and behavioral disorders, mostly due to alcohol use and head injuries. The primary radiological diagnostics used were CT scans. Int J Occup Med Environ Health. 2022;35(2):157-67.