Effects of a nurse-managed program on hepatitis A and B vaccine completion among homeless adults

Nursing health technologies in the prevention and control of hepatitis A: a scoping review

OBJECTIVE

To map scientific evidence on nursing health technologies in the prevention and control of Hepatitis A.

METHOD

Scoping review conducted in 2024 according to JBI recommendations and reported following PRISMA-ScR criteria. The search was carried out (10/06/2024) in databases and gray literature. The technologies found were classified as: soft, soft-hard, and hard. The results were analyzed descriptively and synthesized.

RESULTS

Ten studies were selected, all from the USA. Technologies include vaccination; serological testing; health education; reminders in health information systems; peer coaching training; case management; consultations; notification of diseases and injuries; clinical screening; and monitoring and tracking. Hard technologies prevailed.

CONCLUSION

Primary Health Care stood out as the main focus, mainly addressing vaccination and health education. Secondary and Tertiary Care, in turn, focused on clinical screening and continuity of care. The concentration of studies of American origin reinforces the perception of literary insipience and possible negligence and lack of technical preparation in the prevention and control of Hepatitis A.

The effect of alcohol, tobacco, and other drug use on vaccine acceptance, uptake, and adherence: a systematic review

BACKGROUND

Vaccine hesitancy is increasingly recognized as a health challenge affecting populations worldwide. Given the biological vulnerabilities and structural barriers people who use substances and/or have behavioral addictions face, this systematic review aims to evaluate whether this subpopulation is less prone to adhere to vaccination recommendations.

METHODS

Electronic searches of published original research were conducted in PubMed, EMBASE, Scopus, and PsycINFO from database inception to December 2022. Our strategy encompassed retrievals regardless of languages and date of publication. Animal studies, abstracts without a full manuscript, and studies which were considered to have lower robustness of scientific evidence were excluded. Outcomes measured were vaccine acceptance, uptake, and adherence. Results were interpreted through a narrative synthesis.

RESULTS

The search yielded 103 retrievals encompassing data collected on 5 576 374 persons who were predominantly residents of Europe (n = 39) and North America (n = 27). Tobacco use, the substance for which many studies were found (n = 91), was significantly associated with poorer vaccine acceptance, uptake and adherence for influenza, COVID-19, human papillomavirus (HPV), and maternal and childhood vaccines. Peri-natal and parental substance use was identified as a risk factor for suboptimal vaccine-related outcomes concerning maternal COVID-19 and childhood vaccines. Finally, people identified as 'using', 'abusing', or 'misusing' drugs or substances may be at decreased odds of all outcomes in various vaccines.

CONCLUSIONS

Collectively, the studies identified several groups with statistically significant greater vaccine hesitancy and decreased engagement among whom targeted measures could be beneficial. Timely evidence, especially on behavioral addictions and substances besides tobacco, is lacking, and warrants urgent attention.

Disparities in hepatitis B virus healthcare service access among marginalised poor populations: a mixed-method systematic review

BACKGROUND

Marginalised poor populations, characterised by poverty and social exclusion, suffer disproportionately from hepatitis B virus (HBV) infections and encounter substantial disparities in access to healthcare. This has further exacerbated the global HBV burden and precluded progress towards HBV elimination. This mixed-method systematic review aimed to synthesise their utilisation and influencing factors in HBV healthcare services, including screening, vaccination, treatment, and linkage-to-care.

METHODS

Eleven databases were searched from their inception to May 4, 2023. Quantitative and qualitative studies examining the factors influencing HBV healthcare access among marginalised poor populations were included. A meta-analysis was conducted to synthesise the pooled rates of HBV healthcare utilisation. The factors influencing utilisation were integrated and visualised using a health disparity research framework.

RESULTS

Twenty-one studies were included involving 13,171 marginalised poor individuals: sex workers, rural migrant workers, irregular immigrants, homeless adults, and underprivileged individuals. Their utilisation of HBV healthcare ranged from 1.5% to 27.5%. Meta-analysis showed that the pooled rate of at least one dose of the HBV vaccine barely reached 37% (95% confidence interval: 0.26‒0.49). Fifty-one influencing factors were identified, with sociocultural factors (n = 19) being the most frequently reported, followed by behavioural (n = 14) and healthcare system factors (n = 11). Socio-cultural barriers included immigration status, prison history, illegal work, and HBV discrimination. Behavioural domain factors, including previous testing for sexually transmitted diseases, residential drug treatment, and problem-solving coping, facilitated HBV healthcare access, whereas hostility coping exerted negative influences. Healthcare system facilitators comprised HBV health literacy, beliefs, and physician recommendations, whereas barriers included service inaccessibility and insurance inadequacies. The biological and physical/built environments were the least studied domains, highlighting that geographical mobility, shelter capacity, and access to humanitarian health centres affect HBV healthcare for marginalised poor populations.

CONCLUSIONS

Marginalised poor populations encounter substantial disparities in accessing HBV healthcare, highlighting the need for a synergistic management approach, including deploying health education initiatives to debunk HBV misperceptions, developing integrated HBV management systems for continuous tracking, conducting tailored community outreach programmes, and establishing a human rights-based policy framework to guarantee the unfettered access of marginalised poor populations to essential HBV services.

How nurses contribute to the elimination of hepatitis B? A systematic review and meta-analysis

BACKGROUND

With approximately one-third of the global population exhibiting serological evidence of exposure, the hepatitis B virus remains a serious public health threat. Elimination of hepatitis B faces enormous challenges, from prevention to diagnosis, treatment, and long-term monitoring. Nurses are pivotal in optimising the hepatitis B care continuum; however, their contributions have been neglected.

OBJECTIVE

To identify the role of nurses in the elimination of hepatitis B and to synthesise the effectiveness of interventions with nursing roles in approaching the elimination target.

DESIGN

A systematic review and meta-analysis.

SETTING(S)

Thirteen databases (EMBASE, MEDLINE via OvidSP, Ovid Emcare, Ovid Nursing Database, British Nursing Index, APA PsycINFO, Cochrane Central Register of Controlled Trials, CINAHL, Scopus, Web of Science Core Collection, China National Knowledge Internet, SinoMed, and Wanfang Data) were searched from their inception to 6 December 2022.

METHODS

Interventional studies examining the contribution of nursing roles towards elimination targets were included. Content analysis was used to extract and map the nursing roles based on the nursing interventions classification system. Random-effects meta-analyses were conducted to examine the effectiveness of the intervention in improving hepatitis B screening, detection, and vaccination rates.

RESULTS

The synthesis from 16 studies identified 13 nursing roles that primarily involved (1) health education and counselling for informed patient decision-making regarding hepatitis B prevention, vaccination, screening, and disease monitoring; (2) case management and health promotion to advocate elimination services at multiple levels and enable equitable access among marginalised communities; and (3) running specialist clinics to lead advanced practices in prescribing and carrying diagnostic tests, formulating evidence-based individualised care plans, and coordinating care throughout the disease process. Interventions with these roles achieved pooled hepatitis B screening and detection rates of 64 % (95 % confidence interval [CI] = 0.44, 0.84) and 2 % (95 % CI = 0.00, 0.05), respectively, increased the odds of hepatitis B virus vaccination by 2.61 times (95 % CI = 1.60, 4.28), improved immunity rate, and enhanced patient adherence to antiviral treatment and monitoring of liver comorbidities. However, their effects on hepatitis B virus DNA-negative conversion rates and hepatocellular carcinoma incidence were not significant.

CONCLUSIONS

Nurses play multifaceted roles in advocating hepatitis B screening and vaccination, initiating outreach efforts in marginalised communities, and leading advanced practices that effectively contribute to the elimination of hepatitis B. Policymakers should consider how nurses may help the achievement of the elimination target.

REGISTRATION

PROSPERO (CRD42022380719) registered on December 12, 2022.

TWEETABLE ABSTRACT

Nurses raised awareness, initiated outreach efforts, addressed inequalities, and led advanced practices-effectively contributing to eliminating hepatitis B.

Behavioral interventions for vaccination uptake: A systematic review and meta-analysis

BACKGROUND

Human behavior and more specifically behavioral insight-based approaches to vaccine uptake have often been overlooked. While there have been a few narrative reviews indexed in Medline on behavioral interventions to increase vaccine uptake, to our knowledge, none have been systematic reviews and meta-analyses covering not just high but also low-and-middle income countries.

METHODS

We included 613 studies from the Medline database in our systematic review and meta-analysis categorizing different behavioral interventions in 9 domains: education campaigns, on-site vaccination, incentives, free vaccination, institutional recommendation, provider recommendation, reminder and recall, message framing, and vaccine champion. Additionally, considering that there is variability in the acceptance of vaccines among different populations, we assessed studies from both high-income countries (HICs) and low- to middle-income countries (LMICs), separately.

FINDINGS

Our results showed that behavioral interventions can considerably improve vaccine uptake in most settings. All domains that we examined improved vaccine uptake with the highest effect size associated with provider recommendation (OR: 3.4 (95%CI: 2.5-4.6); Domain: motivation) and on-site vaccination (OR: 2.9 (95%CI: 2.3-3.7); Domain: practical issues). While the number of studies conducted in LMICs was smaller, the quality of studies was similar with those conducted in HICs. Nevertheless, there were variations in the observed effect sizes.

INTERPRETATION

Our findings indicate that "provider recommendation" and "on-site vaccination" along with other behavioral interventions can be employed to increase vaccination rates globally.

Integration, effectiveness and costs of different models of primary health care provision for people who are homeless: an evaluation study

Background

There is a high prevalence of health problems among single people who are homeless. Specialist primary health care services for this population have been developed in several locations across England; however, there have been very few evaluations of these services.

Objectives

This study evaluated the work of different models of primary health care provision in England to determine their effectiveness in engaging people who are homeless in health care and in providing continuity of care for long-term conditions. It concerned single people (not families or couples with dependent children) staying in hostels, other temporary accommodation or on the streets. The influence on outcomes of contextual factors and mechanisms (service delivery factors), including integration with other services, were examined. Data from medical records were collated on participants' use of health care and social care services over 12 months, and costs were calculated.

Design and setting

The evaluation involved four existing Health Service Models: (1) health centres primarily for people who are homeless (Dedicated Centres), (2) Mobile Teams providing health care in hostels and day centres, (3) Specialist GPs providing some services exclusively for patients who are homeless and (4) Usual Care GPs providing no special services for people who are homeless (as a comparison). Two Case Study Sites were recruited for each of the specialist models, and four for the Usual Care GP model.

Participants

People who had been homeless during the previous 12 months were recruited as 'case study participants'; they were interviewed at baseline and at 4 and 8 months, and information was collected about their circumstances and their health and service use in the preceding 4 months. Overall, 363 participants were recruited; medical records were obtained for 349 participants. Interviews were conducted with 65 Case Study Site staff and sessional workers, and 81 service providers and stakeholders.

Results

The primary outcome was the extent of health screening for body mass index, mental health, alcohol use, tuberculosis, smoking and hepatitis A among participants, and evidence of an intervention if a problem was identified. There were no overall differences in screening between the models apart from Mobile Teams, which scored considerably lower. Dedicated Centres and Specialist GPs were more successful in providing continuity of care for participants with depression and alcohol and drug problems. Service use and costs were significantly higher for Dedicated Centre participants and lower for Usual Care GP participants. Participants and staff welcomed flexible and tailored approaches to care, and related services being available in the same building. Across all models, dental needs were unaddressed and staff reported poor availability of mental health services.

Limitations

There were difficulties recruiting mainstream general practices for the Usual Care GP model. Medical records could not be accessed for 14 participants of this model.

Conclusions

Participant characteristics, contextual factors and mechanisms were influential in determining outcomes. Overall, outcomes for Dedicated Centres and for one of the Specialist GP sites were relatively favourable. They had dedicated staff for patients who were homeless, 'drop-in' services, on-site mental health and substance misuse services, and worked closely with hospitals and homelessness sector services.

Funding

This project was funded by the National Institute for Health and Care Research (NIHR) Health and Social Care Delivery Research programme (HSDR 13/156/03) and will be published in full in Health and Social Care Delivery Research; Vol. 11, No. 16. See the NIHR Journals Library website for further project information.

Exploring the effect of case management in homelessness per components: A systematic review of effectiveness and implementation, with meta-analysis and thematic synthesis

Background

Adequate housing is a basic human right. The many millions of people experiencing homelessness (PEH) have a lower life expectancy and more physical and mental health problems. Practical and effective interventions to provide appropriate housing are a public health priority.

Objectives

To summarise the best available evidence relating to the components of case-management interventions for PEH via a mixed methods review that explored both the effectiveness of interventions and factors that may influence its impact.

Search Methods

We searched 10 bibliographic databases from 1990 to March 2021. We also included studies from Campbell Collaboration Evidence and Gap Maps and searched 28 web sites. Reference lists of included papers and systematic reviews were examined and experts contacted for additional studies.

Selection Criteria

We included all randomised and non-randomised study designs exploring case management interventions where a comparison group was used. The primary outcome of interest was homelessness. Secondary outcomes included health, wellbeing, employment and costs. We also included all studies where data were collected on views and experiences that may impact on implementation.

Data Collection and Analysis

We assessed risk of bias using tools developed by the Campbell Collaboration. We conducted meta-analyses of the intervention studies where possible and carried out a framework synthesis of a set of implementation studies identified by purposive sampling to represent the most 'rich' and 'thick' data.

Main Results

We included 64 intervention studies and 41 implementation studies. The evidence base was dominated by studies from the USA and Canada. Participants were largely (though not exclusively) people who were literally homeless, that is, living on the streets or in shelters, and who had additional support needs. Many studies were assessed as having a medium or high risk of bias. However, there was some consistency in outcomes across studies that improved confidence in the main findings.

Case Management and Housing Outcomes

Case management of any description was superior to usual care for homelessness outcomes (standardised mean difference [SMD] = -0.51 [95% confidence interval [CI]: -0.71, -0.30]; p < 0.01). For studies included in the meta-analyses, Housing First had the largest observed impact, followed by Assertive Community Treatment, Critical Time Intervention and Intensive Case Management. The only statistically significant difference was between Housing First and Intensive Case Management (SMD = -0.6 [-1.1, -0.1]; p = 0.03) at ≥12 months. There was not enough evidence to compare the above approaches with standard case management within the meta-analyses. A narrative comparison across all studies was inconclusive, though suggestive of a trend in favour of more intensive approaches.

Case Management and Mental Health Outcomes

The overall evidence suggested that case management of any description was not more or less effective compared to usual care for an individual's mental health (SMD = 0.02 [-0.15, 0.18]; p = 0.817).

Case Management and Other Outcomes

Based on meta-analyses, case management was superior to usual care for capability and wellbeing outcomes up to 1 year (an improvement of around one-third of an SMD; p < 0.01) but was not statistically significantly different for substance use outcomes, physical health, and employment.

Case Management Components

For homelessness outcomes, there was a non-significant trend for benefits to be greater in the medium term (≤3 years) compared to long term (>3 years) (SMD = -0.64 [-1.04, -0.24] vs. -0.27 [-0.53, 0]; p = 0.16) and for in-person meetings in comparison to mixed (in-person and remote) approaches (SMD = -0.73 [-1.25,-0.21]) versus -0.26 [-0.5,-0.02]; p = 0.13). There was no evidence from meta-analyses to suggest that an individual case manager led to better outcomes then a team, and interventions with no dedicated case manager may have better outcomes than those with a named case manager (SMD = -0.36 [-0.55, -0.18] vs. -1.00 [-2.00, 0.00]; p = 0.02). There was not enough evidence from meta-analysis to assess whether the case manager should have a professional qualification, or if frequency of contact, case manager availability or conditionality (barriers due to conditions attached to service provision) influenced outcomes. However, the main theme from implementation studies concerned barriers where conditions were attached to services.

Characteristics of Persons Experiencing Homelessness

No conclusions could be drawn from meta-analysis other than a trend for greater reductions in homelessness for persons with high complexity of need (two or more support needs in addition to homelessness) as compared to those with medium complexity of need (one additional support need); effect sizes were SMD = -0.61 [-0.91, -0.31] versus -0.36 [-0.68, -0.05]; p = 0.3.

The Broader Context of Delivery of Case Management Programmes

Other major themes from the implementation studies included the importance of interagency partnership; provision for non-housing support and training needs of PEH (such as independent living skills), intensive community support following the move to new housing; emotional support and training needs of case managers; and an emphasis on housing safety, security and choice.

Cost Effectiveness

The 12 studies with cost data provided contrasting results and no clear conclusions. Some case management costs may be largely off-set by reductions in the use of other services. Cost estimates from three North American studies were $45-52 for each additional day housed.

Authors' Conclusions

Case management interventions improve housing outcomes for PEH with one or more additional support needs, with more intense interventions leading to greater benefits. Those with greater support needs may gain greater benefit. There is also evidence for improvements to capabilities and wellbeing. Current approaches do not appear to lead to mental health benefits. In terms of case management components, there is evidence in support of a team approach and in-person meetings and, from the implementation evidence, that conditions associated with service provision should be minimised. The approach within Housing First could explain the finding that overall benefits may be greater than for other types of case management. Four of its principles were identified as key themes within the implementation studies: No conditionality, offer choice, provide an individualised approach and support community building. Recommendations for further research include an expansion of the research base outside North America and further exploration of case management components and intervention cost-effectiveness.

Scoping review: Scope of practice of nurse-led services and access to care for people experiencing homelessness

AIMS

To investigate the scope of practice of nurse-led services for people experiencing homelessness, and the influence on access to healthcare.

DESIGN

A scoping review.

DATA SOURCES

On 20 November 2020, the following databases were searched: CINAHL, Embase, MEDLINE, PubMed and Scopus.

REVIEW METHODS

Included studies focused on people experiencing homelessness aged 18 years and over, nurse-led services in any setting and described the nursing scope of practice. Studies were peer-reviewed primary research, published in English from the year 2000. Three authors performed quality appraisals using the mixed methods assessment tool. Results were synthesized and discussed narratively and reported according to the PRISMA-ScR 2020 Statement.

RESULTS

Nineteen studies were included from the United States (n = 9), Australia (n = 4), United Kingdom (n = 4) and Canada (n = 2). The total participant sample size was n = 6303. Studies focused on registered nurses (n = 10), nurse practitioners (n = 5) or both (n = 4), in outpatient or community settings. The nursing scope of practice was broad and covered a range of skills, knowledge and attributes. Key skills identified include assessment and procedural skills, client support and health education. Key attributes were a trauma-informed approach and building trust through communication. Important knowledge included understanding the impact of homelessness, knowledge of available services and the capacity to undertake holistic assessments. Findings suggest that nurse-led care facilitated access to healthcare through building trust and supporting clients to access services.

CONCLUSION

Optimized nursing scope of practice can facilitate access to healthcare for people experiencing homelessness. Key factors in enabling this include autonomy in nursing practice, organizational support and education.

IMPACT

The broad range of skills, knowledge and attributes reported provide a foundation from which to design an educational framework to optimize the nursing scope of practice, thereby increasing access to healthcare for people experiencing homelessness.

Strategies to improve vaccination rates in people who are homeless: A systematic review

People who are homeless experience higher rates of vaccine-preventable disease, including COVID-19, than the general population, and poorer associated health outcomes. However, delivering vaccinations to people who are homeless is complex, and there is a lack of evidence to inform practice in this area. The aim of this systematic review is to: (a) identify, (b) analyse the characteristics of, and (c) evaluate the outcomes of, strategies to improve vaccination rates in people who are homeless. Literature was retrieved from eight electronic databases. Studies undertaken in high-income countries, published in English, in a peer-reviewed journal, and in full-text were considered. No limits were placed on study design or date. A total of 1,508 articles were retrieved and, after the removal of duplicates, 637 were screened. Twenty-three articles, reporting on nineteen separate vaccination strategies for hepatitis A/B, influenza, herpes zoster, invasive pneumococcal disease, and diphtheria in people who are homeless, were selected for inclusion. All the strategies were effective at improving vaccination rates in, people who are homeless. Most strategies involved vaccination clinics and most were delivered, at least in part, by nurses. Other characteristics of successful strategies included: delivering vaccinations at convenient locations; using accelerated vaccination schedules (if available); vaccinating at the first appointment, regardless of whether a person's vaccination history or serological status were known (if clinically safe); operating for a longer duration; offering training to staff about working with people who are homeless; widely promoting clinics; considering education, reminders, incentives, and co-interventions; ensuring no out-of-pocket costs; and working collaboratively with stakeholders, including people who are homeless themselves. These findings will inform evidence-based vaccination strategies, including for COVID-19, in people who are homeless, and improve associated health outcomes in this at-risk, hard-to-reach group.

Racial and Ethnic Disparities in Adult Vaccination: A Review of the State of Evidence

Background

Adult vaccination coverage remains low in the United States, particularly among racial and ethnic minority populations.

Objective

To conduct a comprehensive literature review of research studies assessing racial and ethnic disparities in adult vaccination.

Search Methods

We conducted a search of PubMed, Cochrane Library, ClinicalTrials.gov, and reference lists of relevant articles.

Selection Criteria

Research studies were eligible for inclusion if they met the following criteria: (1) study based in the United States, (2) evaluated receipt of routine immunizations in adult populations, (3) used within-study comparison of race/ethnic groups, and (4) eligible for at least one author-defined PICO (patient, intervention, comparison, and outcome) question.

Data Collection and Analysis

Preliminary abstract review was conducted by two authors. Following complete abstraction of articles using a standardized template, abstraction notes and determinations were reviewed by all authors; disagreements regarding article inclusion/exclusion were resolved by majority rule. The Social Ecological Model framework was used to complete a narrative review of observational studies to summarize factors associated with disparities; a systematic review was used to evaluate eligible intervention studies.

Results

Ninety-five studies were included in the final analysis and summarized qualitatively within two main topic areas: (1) factors associated with documented racial-ethnic disparities in adult vaccination and (2) interventions aimed to reduce disparities or to improve vaccination coverage among racial-ethnic minority groups. Of the 12 included intervention studies, only 3 studies provided direct evidence and were of Level II, fair quality; the remaining 9 studies met the criteria for indirect evidence (Level I or II, fair or poor quality).

Conclusions

A considerable amount of observational research evaluating factors associated with racial and ethnic disparities in adult vaccination is available. However, intervention studies aimed at reducing these disparities are limited, are of poor quality, and insufficiently address known reasons for low vaccination uptake among racial and ethnic minority adults.

Factors Associated with the Completeness of the Vaccination Schedule of Children at 12 and 24 Months of Age in a Brazilian Medium-Size Municipality

PURPOSE

To analyse the factors associated with the completeness of the vaccination schedule of children at 12 and 24 months of age, in a Brazilian municipality.

DESIGN AND METHODS

Cross-sectional study conducted in Araraquara-São Paulo with a probabilistic sample of 388 children born in 2015. The completeness of the vaccination schedule at 12 and 24 months of age was considered a dependent variable. Socioeconomic and demographic characteristics, use of health services and vaccination were the independent variables. For analysis, descriptive statistics and Poisson regression with robust variance were used.

RESULTS

The completeness of the vaccination schedule at 12 and 24 months of age was identified in 77.1% and 68.8% of children, respectively. Coverage at 12 months was greater among children of mothers who received guidance from health professionals on vaccination or had health problems during childbirth or in the first seven days. Those who reported a previous episode of adverse reaction to the vaccine, coverage was lower. Coverage at 24 months was greater among those who received guidance from health professionals on vaccination or had health problems during childbirth or in the first seven days. Those who reported a previous episode of adverse reaction to the vaccine, coverage was lower.

CONCLUSIONS

This study points to the importance of guiding health professionals, particulary nurses, on the vaccination and vaccine safety.

CLINICAL IMPLICATIONS

It is necessary the competent act of the health professionals in of immunization programs, as they are able to provide clear and accurate information of the vaccination.

A Nurse Case Management HIV Prevention Intervention (Come As You Are) for Youth Experiencing Homelessness: Protocol for a Randomized Wait-list Controlled Trial

Background

Youth experiencing homelessness are more likely than housed youth to experience premature death, suicide, drug overdose, pregnancy, substance use, and mental illness. Yet while youth experiencing homelessness are 6 to 12 times more likely to become infected with HIV than housed youth, with HIV prevalence as high as 16%, many do not access the prevention services they need. Despite adversities, youth experiencing homelessness are interested in health promotion programs, can be recruited and retained in interventions and research studies, and demonstrate improved outcomes when programs are tailored and relevant to them.

Objective

The study aims to compare the efficacy of a nurse case management HIV prevention and care intervention, titled Come As You Are, with that of usual care among youth experiencing homelessness aged 16 to 25 years.

Methods

The study is designed as a 2-armed randomized wait-list controlled trial. Participants (n=450) will be recruited and followed up for 9 months after the intervention for a total study period of 12 months. Come As You Are combines nurse case management with a smartphone-based daily ecological momentary assessment to develop participant-driven HIV prevention behavioral goals that can be monitored in real-time. Youth in the city of Houston, Texas will be recruited from drop-in centers, shelters, street outreach programs, youth-serving organizations, and clinics.

Results

Institutional review board approval (Committee for the Protection of Human Subjects, University of Texas Health Science Center at Houston) was obtained in November 2018. The first participant was enrolled in November 2019. Data collection is ongoing. To date, 123 participants have consented to participate in the study, 89 have been enrolled, and 15 have completed their final follow-up.

Conclusions

There is a paucity of HIV prevention research regarding youth experiencing homelessness. Novel and scalable interventions that address the full continuum of behavioral and biomedical HIV prevention are needed. This study will determine whether a personalized and mobile HIV prevention approach can reduce HIV risk among a hard-to-reach, transient population of youth at high risk.

International Registered Report Identifier (IRRID)

DERR1-10.2196/26716

Acceptability and Feasibility of a Nurse-Led, Community Health Worker Partnered Latent Tuberculosis Medication Adherence Model for Homeless Adults

Homeless adults are at increased risk of latent tuberculosis infection (LTBI), which can lead to active tuberculosis (TB) disease. The purpose of this study was to assess acceptability and feasibility of a six-month, nurse-led, community health worker-partnered short-course treatment (3HP) LTBI adherence model for a high risk, LTBI positive, homeless population. Informed by our community advisory board (CAB) and community-based participatory research principles (CBPR), a qualitative study was undertaken and used focus group discussions to identify perspectives of homeless men and women who had undergone LTBI treatment (N = 11, M_age = 51.2, SD 8.60, range 35-60). Three themes formed, which were engaging and recruiting LTBI intervention participants, delivering an LTBI intervention, and retaining LTBI intervention participants. Within those themes, barriers (e.g., lack of LTBI treatment readiness, substance use, etc.), and facilitators (e.g., LTBI and TB health education, familiarity with homeless population, etc.) were discussed to facilitate program recruitment, program delivery and program retention. These findings provide a greater understanding of how to effectively utilize a nurse-led, Community Health Worker (CHW) intervention delivery method to not only improve 3HP LTBI medication adherence, but also decrease substance use, improve mental health, and decrease unstable housing among this vulnerable population at high risk for active tuberculosis.

A Patient-Centered Hepatitis B Virus (HBV) Educational Intervention Improves HBV Care Among Underserved Safety-Net Populations

GOALS

To evaluate the impact of a prospective patient-centered hepatitis B virus (HBV) educational intervention on improving HBV care.

BACKGROUND

Improving patients' HBV knowledge has the potential to improve adherence to HBV monitoring and management, particularly among underserved safety-net populations.

METHODS

Consecutive chronic HBV adults at a single-center safety-net liver clinic were recruited from July 2017 to July 2018 to evaluate the impact of an in-person, language concordant formal HBV educational intervention on improvements in HBV knowledge and HBV management: appropriate HBV clinic follow-up (≥1 visit/year), HBV laboratory monitoring (≥1 HBV viral load and alanine aminotransferase test/year), hepatocellular carcinoma surveillance (≥1 liver imaging test/year among eligible patients), and HBV treatment among treatment eligible patients. HBV knowledge and management were assessed before and after the intervention and compared with age-matched and sex-matched HBV controls who did not receive an education.

RESULTS

Among 102 patients with chronic HBV (54.9% men; mean age, 52.0±13.8), HBV education improved HBV knowledge scores by 25% (P<0.001), HBV clinic follow-up from 25.5% to 81.4% (P<0.001), HBV laboratory monitoring from 62.8% to 77.5% (P=0.02), and appropriate HBV treatment from 71.5% to 98.5% (P<0.001). Compared with 102 HBV controls, receiving HBV education was associated with higher rates of HBV clinic follow-up (81.4% vs. 39.2%; odds ratio, 7.02; 95% confidence interval, 3.64-13.56; P<0.001) and appropriate HBV laboratory monitoring (77.5% vs. 42.2%; odds ratio, 4.94, 95% confidence interval, 2.64-9.24; P<0.001).

CONCLUSION

A formal, in-person, language concordant educational intervention leads to significant improvements in HBV knowledge, resulting in improved HBV monitoring and appropriate HBV treatment.

The situation of vaccines for the prevention of infections in adults: An opinion paper on the situation in Spain

The childhood immunization schedule is well known and generally well implemented in developed countries. For various reasons, the same is not true of vaccines aimed at preventing infections in adults, in which vaccination coverage is incomplete and generally very deficient. In order to assess the situation of adult vaccination in Spain, the Fundación de Ciencias de la Salud has brought together a series of experts in different fields, including doctors, nurses, representatives of patient associations, health managers and economists, health authorities and journalists to deal with this issue. The format was that of a round table in which a series of questions previously formulated by the coordinators were to be answered and debated. The document presented is not an exhaustive review of the topic, nor is it intended to make recommendations, but only to give a multidisciplinary opinion on topics that could be particularly debatable or controversial. The paper reviews the main vaccine-preventable adult diseases, their clinical and economic impact, the possibilities of reducing them with vaccination programmes and the difficulties in carrying them out. The role of nursing, pharmacy services, patient associations and the health administration itself in changing the current situation was discussed. Prospects for new vaccines were discussed and we speculated on the future in this field. Finally, particularly relevant ethical aspects in decision-making regarding vaccination were discussed, which must be faced by both individuals and states. We have tried to summarize, at the end of the presentation of each question, the environment of opinion that was agreed with all the members of the table.

Cost-effective way to reduce stimulant-abuse among gay/bisexual men and transgender women: a randomized clinical trial with a cost comparison

OBJECTIVES

A randomized controlled study was conducted with 422 homeless, stimulant-using gay/bisexual (G/B) men and 29 transgender women (n = 451) to assess two community-based interventions to reduce substance abuse and improve health: (a) a nurse case-managed program combined with contingency management (NCM + CM) versus (b) standard education plus contingency management (SE + CM).

STUDY DESIGN

Hypotheses tested included: a) completion of hepatitis A/B vaccination series; b) reduction in stimulant use; and c) reduction in number of sexual partners.

METHODS

A deconstructive cost analysis approach was utilized to capture direct costs associated with the delivery of both interventions. Based on an analysis of activity logs and staff interviews, specific activities and the time required to complete each were analyzed as follows: a) NCM + CM only; b) SE + CM only; c) time to administer/record vaccines; and d) time to receive and record CM visits. Cost comparison of the interventions included only staffing costs and direct cash expenditures.

RESULTS

The study outcomes showed significant over time reductions in all measures of drug use and multiple sex partners, compared to baseline, although no significant between-group differences were detected. Cost analysis favored the simpler SE + CM intervention over the more labor-intensive NCM + CM approach. Because of the high levels of staffing required for the NCM relative to SE, costs associated with it were significantly higher.

CONCLUSIONS

Findings suggest that while both intervention strategies were equally effective in achieving desired health outcomes, the brief SE + CM appeared less expensive to deliver.

Impact of Tailored Interventions to Reduce Drug Use and Sexual Risk Behaviors Among Homeless Gay and Bisexual Men

A randomized controlled trial was conducted with homeless gay and bisexual men to assess the impact of two culturally sensitive intervention programs on reduction of drug use and risky sexual behavior. In this study, gay and bisexual men between 18 and 46 years of age were randomly assigned to one of two culturally sensitive behavioral intervention programs: a Nurse Case Management Plus Contingency Management (NCM + CM; n = 204) or a Standard Education Plus Contingency Management (SE + CM; n = 210) program. Regardless of group assignment, significant and clinically relevant reductions were observed in stimulant use over time. Multivariable predictors of stimulant use at 4- and 8-month follow-up evaluations were recent injection drug use, tested positive for HIV, or for use of amphetamine. Data revealed a significant linear decline over time for those who had sex with multiple partners. Furthermore, being HIV positive was associated with reporting multiple partners, while higher homophobia scores and having children were inversely related to reports of having sex with multiple partners at follow-up. Culturally sensitive approaches are needed to successfully reduce drug use and risky sexual activities among gay and bisexual populations.

Impact of Community-Based Programs on Incarceration Outcomes Among Gay and Bisexual Stimulant-Using Homeless Adults

This study was part of a randomized controlled trial designed to improve hepatitis knowledge and health promoting behaviors and subsequently decrease stimulant use and incarceration with 422 (G/B) homeless men between 18 and 46 years of age. Findings revealed that no significant program differences on incarceration in the 4 months following the intervention. However, younger participants (p = .010), and those with prior incarceration (p = .001) were at greater risk for incarceration at 4 months. An additional factor associated with incarceration at 4 months included living on the street for at least 1 week (p = .049).

Accelerated Hepatitis A and B Immunization in a Substance Abuse Treatment Program

An accelerated dosing program for hepatitis A and B vaccination among veterans receiving treatment for addictive disorders was successfully implemented, although many veterans with hepatitis C did not complete the immunization series.

Nursing case management, peer coaching, and hepatitis a and B vaccine completion among homeless men recently released on parole: randomized clinical trial

BACKGROUND

Although hepatitis A virus (HAV) and hepatitis B virus (HBV) infections are vaccine-preventable diseases, few homeless parolees coming out of prisons and jails have received the hepatitis A and B vaccination series.

OBJECTIVES

The study focused on completion of the HAV and HBV vaccine series among homeless men on parole. The efficacy of three levels of peer coaching (PC) and nurse-delivered interventions was compared at 12-month follow-up: (a) intensive peer coaching and nurse case management (PC-NCM); (b) intensive PC intervention condition, with minimal nurse involvement; and (c) usual care (UC) intervention condition, which included minimal PC and nurse involvement. Furthermore, we assessed predictors of vaccine completion among this targeted sample.

METHODS

A randomized control trial was conducted with 600 recently paroled men to assess the impact of the three intervention conditions (PC-NCM vs. PC vs. UC) on reducing drug use and recidivism; of these, 345 seronegative, vaccine-eligible subjects were included in this analysis of completion of the Twinrix HAV/HBV vaccine. Logistic regression was added to assess predictors of completion of the HAV/HBV vaccine series and chi-square analysis to compare completion rates across the three levels of intervention.

RESULTS

Vaccine completion rate for the intervention conditions were 75.4% (PC-NCM), 71.8% (PC), and 71.9% (UC; p = .78). Predictors of vaccine noncompletion included being Asian and Pacific Islander, experiencing high levels of hostility, positive social support, reporting a history of injection drug use, being released early from California prisons, and being admitted for psychiatric illness. Predictors of vaccine series completion included reporting having six or more friends, recent cocaine use, and staying in drug treatment for at least 90 days.

DISCUSSION

Findings allow greater understanding of factors affecting vaccination completion in order to design more effective programs among the high-risk population of men recently released from prison and on parole.

Strategies for addressing vaccine hesitancy - A systematic review

The purpose of this systematic review is to identify, describe and assess the potential effectiveness of strategies to respond to issues of vaccine hesitancy that have been implemented and evaluated across diverse global contexts.

METHODS

A systematic review of peer reviewed (January 2007-October 2013) and grey literature (up to October 2013) was conducted using a broad search strategy, built to capture multiple dimensions of public trust, confidence and hesitancy concerning vaccines. This search strategy was applied and adapted across several databases and organizational websites. Descriptive analyses were undertaken for 166 (peer reviewed) and 15 (grey literature) evaluation studies. In addition, the quality of evidence relating to a series of PICO (population, intervention, comparison/control, outcomes) questions defined by the SAGE Working Group on Vaccine Hesitancy (WG) was assessed using Grading of Recommendations Assessment, Development and Evaluation (GRADE) criteria; data were analyzed using Review Manager.

RESULTS

Across the literature, few strategies to address vaccine hesitancy were found to have been evaluated for impact on either vaccination uptake and/or changes in knowledge, awareness or attitude (only 14% of peer reviewed and 25% of grey literature). The majority of evaluation studies were based in the Americas and primarily focused on influenza, human papillomavirus (HPV) and childhood vaccines. In low- and middle-income regions, the focus was on diphtheria, tetanus and pertussis, and polio. Across all regions, most interventions were multi-component and the majority of strategies focused on raising knowledge and awareness. Thirteen relevant studies were used for the GRADE assessment that indicated evidence of moderate quality for the use of social mobilization, mass media, communication tool-based training for health-care workers, non-financial incentives and reminder/recall-based interventions. Overall, our results showed that multicomponent and dialogue-based interventions were most effective. However, given the complexity of vaccine hesitancy and the limited evidence available on how it can be addressed, identified strategies should be carefully tailored according to the target population, their reasons for hesitancy, and the specific context.

Increasing hepatitis C knowledge among homeless adults: results of a community-based, interdisciplinary intervention

Homeless adults have high rates of hepatitis C virus infection (HCV) and low levels of HCV knowledge. This study reports results of an interdisciplinary, community-based intervention using stakeholder cooperation, case management, risk factor identification, and modification of dysfunctional psychosocial factors to increase HCV knowledge among homeless adults (N = 747). Data are from a randomized quasi-experimental study, with the major goal of evaluating the effectiveness of a Nurse Case Managed Intervention compared to a Standard Intervention, encouraging completion of a three-series hepatitis A/hepatitis B vaccination program. Increased HCV knowledge was measured with an 18-item questionnaire discerning risk factors for HCV and common misconceptions about individuals with HCV. A significant increase in HCV knowledge resulted regardless of intervention format. Receiving the Nurse Case Managed Intervention predicted greatest gain in HCV knowledge (p < 0.000). Successfully engaging key stakeholders, outreach workers, community organizations, and homeless people themselves proved most efficacious in increasing HCV knowledge.

Retention of Homeless Smokers in the Power to Quit Study

INTRODUCTION

Concerns about retention are a major barrier to conducting studies enrolling homeless individuals. Since smoking is a major problem in homeless communities and research on effective methods of promoting smoking cessation is needed, we describe strategies used to increase retention and participant characteristics associated with retention in smoking cessation study enrolling homeless adults.

METHODS

The parent study was a 2-group randomized controlled trial with 26-week follow-up enrolling 430 homeless smokers from emergency shelters and transitional housing units in Minneapolis/Saint Paul, MN, USA. Multiple strategies were used to increase retention, including conducting visits at convenient locations for participants, collecting several forms of contact information from participants, using a schedule that was flexible and included frequent low-intensity visits, and providing incentives. Participant demographics as well as characteristics related to tobacco and drug use and health status were analyzed for associations with retention using univariate and multivariate analysis.

RESULTS

Overall retention was 75% at 26 weeks. Factors associated with increased retention included greater age; having healthcare coverage; history of multiple homeless episodes, lower stress level; and higher PHQ-9 (Patient Health Questionnaire-9) score. A history of excessive drinking and drug use were associated with decreased retention.

CONCLUSIONS

It is possible to successfully retain homeless individuals in a smoking cessation study if the study is designed with participants' needs in mind.

Raising public awareness of hepatitis B and C through a testing road show

Over the past decade, as the profile of hepatitis B and C has been raised, a range of nurse-led services has been developed among substance misuse services, prisons and homeless services to reach those at the highest risk of infection. In the UK, it is estimated that up to two-thirds of people with hepatitis C are unaware of their infection (Cornberg et al, 2011). These patients represent those at the highest risk of developing cirrhosis and liver cancer, and many are unlikely to be in contact with services that offer routine testing. To help address this, the Welsh Hepatitis Nurse Forum (WHNF) carried out two road shows aimed at raising awareness of hepatitis B and C among the general public and offering testing. This paper describes the process, results and evaluation of the road shows that took place in 2011 and 2012. The road show is a unique way in which nurses can reach those who may not have regular contact with health services, and has proved useful for generally raising awareness. Further work is needed to evaluate the cost-effectiveness of the road shows.

Education and counseling in the methadone treatment setting improves knowledge of viral hepatitis

The aim of this study was to evaluate the effectiveness of an educational method of providing viral hepatitis education for methadone maintenance patients. Four hundred forty participants were randomly assigned to either a control or a motivationally-enhanced viral hepatitis education and counseling intervention. Viral hepatitis A (HAV), B (HBV), and C (HCV) knowledge tests were administered at baseline, following each of two education sessions (post-education), and at a 3-month follow-up assessment. Results indicated a significant increase in knowledge of HAV, HBV, and HCV over time. No differences were found in knowledge between the intervention groups in knowledge acquisition regarding any of the hepatitis viruses suggesting that a motivational interviewing style may not augment hepatitis knowledge beyond standard counseling. A two-session viral hepatitis education intervention effectively promotes hepatitis knowledge and can be integrated in methadone treatment settings.

Education provides significant benefits to patients with hepatitis B virus or hepatitis C virus infection: a systematic review

BACKGROUND & AIMS

Education of individuals who are at risk for, or have been diagnosed with, chronic hepatitis B virus (HBV) or hepatitis C virus (HCV) infections can improve their participation in disease management. We performed a systematic review to evaluate the effects of educational interventions for patients with HBV or HCV infections.

METHODS

We searched multiple databases for peer-reviewed studies of individuals with HBV or HCV infection, or those at risk for infection. Our final analysis included 14 studies that evaluated any educational intervention and reported the effectiveness or patient outcomes relevant to the intervention (7 patients with HCV infection, 4 patients with HBV infection, and 3 patients with either). Data extracted from studies included details on educational interventions, patient populations, comparison groups, and outcome measures. The quality of each study was appraised.

RESULTS

Types of educational interventions assessed ranged from information websites and nurse-led sessions to community-wide and institutional programs. The educational interventions showed significant (P < .05) improvements to patients' knowledge about their disease, behaviors (including testing and uptake of vaccination), willingness to commence and adhere to treatment, and other outcomes such as self-efficacy and vitality or energy scores. These significant benefits were shown in 5 of 7 studies of HBV infection and 8 of 10 studies of HCV infection. On a 20-point quality scale, study scores ranged from 6 to 19.

CONCLUSIONS

Simple educational interventions for patients with HBV or HCV infection significantly increase patients' knowledge about their disease. More complex, multimodal educational interventions seem to cause behavioral changes that increase rates of testing, vaccination (for HBV), and treatment.

Impact of nursing intervention on improving HIV, hepatitis knowledge and mental health among homeless young adults

In a prospective two-group pilot study of a convenient sample of 156 young adults, we assessed improvement in HIV cognitive and transmission knowledge, hepatitis knowledge, and mental health at six-month follow-up. Multiple linear regression analysis revealed higher six-month scores in total HIV/AIDS knowledge, HIV/AIDS cognitive knowledge, HIV transmission knowledge and HBV and HCV knowledge at 6 months in the Hepatitis Health Promotion (HHP) group compared to the Art Messaging (AM) group. Moreover, homeless young participants who reported having significant others in their lives, and excellent or very good health did better than their counterparts. Youth who were attempting to get their lives together had higher scores for all types of knowledge except HBV. Hallucinogen users had significantly worse scores on all knowledge measures than non-users. Lastly, the HHP group revealed an improvement in psychological well-being compared to the AM group.

Costs of a public health model to increase receipt of hepatitis-related services for persons with mental illness

OBJECTIVE

This study examined the costs and impact on receipt of hepatitis and HIV testing and hepatitis immunization services of a public health intervention model that was designed for use by persons with serious mental illness and co-occurring substance use disorders.

METHODS

Between 2006 and 2008, a random sample of 202 nonelderly, predominantly African-American males with a psychotic or major depressive disorder and a co-occurring substance use disorder was recruited at four community mental health outpatient programs in a large metropolitan area. Participants were randomly assigned at each site to enhanced treatment as usual (N=97), including education about blood-borne diseases and referrals for testing and vaccinations, or to an experimental intervention (N=105) that provided on-site infectious disease education, screening of risk level, pretest counseling, testing for HIV and hepatitis B and C, vaccination for hepatitis A and B, and personalized risk-reduction counseling. The authors compared the two study groups to assess the average costs of improving hepatitis and HIV testing and hepatitis A and B vaccination in this population.

RESULTS

The average cost per participant was $423 for the intervention and $24 for the comparison condition (t=52.7, df=201, p<.001). The costs per additional person tested was $706 for hepatitis C, $776 for hepatitis B, and $3,630 for HIV, and the cost per additional person vaccinated for hepatitis was $561.

CONCLUSIONS

Delivery of hepatitis and HIV public health services to persons with serious mental illness in outpatient mental health settings can be as cost-effective as similar interventions for other at-risk populations.

Development and Validation of an Online Program for Promoting Self-Management among Korean Patients with Chronic Hepatitis B

The hepatitis B virus is second only to tobacco as a known human carcinogen. However, chronic hepatitis B usually does not produce symptoms and people feel healthy even in the early stages of live cancer. Therefore, chronically infected people should perceive it as a serious health problem and move on to appropriate health behaviour. The purpose of this paper is to develop and validate an online program for promoting self-management among Korean patients with chronic hepatitis B. The online program was developed using a prototyping approach and system developing life cycle method, evaluated by users for their satisfaction with the website and experts for the quality of the site. To evaluate the application of the online program, knowledge and self-management compliance of the subjects were measured and compared before and after the application of the online program. There were statistically significant increases in knowledge and self-management compliance in the user group. An online program with high accessibility and applicability including information, motivation, and behavior skill factors can promote self-management of the patient with chronic hepatitis B. Findings from this study allow Korean patients with chronic hepatitis B to engage in proactive and effective health management in the community or clinical practice.

Characteristics of homeless youth who use cocaine and methamphetamine

This cross-sectional hepatitis health promotion study (N = 156) was designed to identify correlates of cocaine and methamphetamine use among young, homeless persons living in Los Angeles County. Structured questionnaires were administered at baseline to assess sociodemographic characteristics, drug history, and social support. Unadjusted analysis showed that older age, having a history of incarceration, injection drug use (IDU), 10 or more sexual partners, and sex for money were associated with both cocaine and methamphetamine use. Logistic regression results showed that injection drug users had over seven times greater odds of using each stimulant compared with nonusers of injection drugs; those reporting at least 10 sexual partners and alcohol use in the past 6 months were more likely to use cocaine than their respective counterparts. African Americans were also less likely than Whites to report cocaine use. Understanding of these relationships can guide interventions targeting the multiple challenges faced by this population.

Hepatitis A/B vaccine completion among homeless adults with history of incarceration

Hepatitis B virus (HBV) vaccination rates for incarcerated adults remain low despite their high risk for infection. This study determined predictors of vaccine completion in homeless adults (N= 297) who reported histories of incarceration and who participated in one of three nurse-led hepatitis programs of different intensity. Moreover time since release from incarceration was also considered. Just over half of the former prisoners completed the vaccine series. Older age (≥40), having a partner, and chronic homelessness were associated with vaccine completion. Recent research has documented the difficulty in providing vaccine services to younger homeless persons and homeless males at risk for HBV. Additional strategies are needed to achieve HBV vaccination completion rates greater than 50% for formerly incarcerated homeless men.

Impact of a nurse vaccination program on hepatitis B immunity in a Swiss HIV clinic

We evaluated the impact of a nurse program for hepatitis B virus vaccination in a center from the Swiss HIV Cohort Study. Immunity (anti-HBs >10 IU/mL) increased from 32% to 76% in the intervention center (n = 238) where vaccine management was endorsed by nurses, but only from 33% to 39% in control centers (n = 2712, P < 0.001) where management remained in charge of physicians. Immunity against HBV in the HIV population is insufficient in Switzerland. Specific nurse vaccination program may efficiently improve health care.

Effectiveness of interventions to improve the health and housing status of homeless people: a rapid systematic review

BACKGROUND

Research on interventions to positively impact health and housing status of people who are homeless has received substantially increased attention over the past 5 years. This rapid review examines recent evidence regarding interventions that have been shown to improve the health of homeless people, with particular focus on the effect of these interventions on housing status.

METHODS

A total of 1,546 articles were identified by a structured search of five electronic databases, a hand search of grey literature and relevant journals, and contact with experts. Two reviewers independently screened the first 10% of titles and abstracts for relevance. Inter-rater reliability was high and as a result only one reviewer screened the remaining titles and abstracts. Articles were included if they were published between January 2004 and December 2009 and examined the effectiveness of an intervention to improve the health or healthcare utilization of people who were homeless, marginally housed, or at risk of homelessness. Two reviewers independently scored all relevant articles for quality.

RESULTS

Eighty-four relevant studies were identified; none were of strong quality while ten were rated of moderate quality. For homeless people with mental illness, provision of housing upon hospital discharge was effective in improving sustained housing. For homeless people with substance abuse issues or concurrent disorders, provision of housing was associated with decreased substance use, relapses from periods of substance abstinence, and health services utilization, and increased housing tenure. Abstinent dependent housing was more effective in supporting housing status, substance abstinence, and improved psychiatric outcomes than non-abstinence dependent housing or no housing. Provision of housing also improved health outcomes among homeless populations with HIV. Health promotion programs can decrease risk behaviours among homeless populations.

CONCLUSIONS

These studies provide important new evidence regarding interventions to improve health, housing status, and access to healthcare for homeless populations. The additional studies included in this current review provide further support for earlier evidence which found that coordinated treatment programs for homeless persons with concurrent mental illness and substance misuse issues usually result in better health and access to healthcare than usual care. This review also provides a synthesis of existing evidence regarding interventions that specifically support homeless populations with HIV.

Impact of hepatitis B and C infection on health services utilization in homeless adults: a test of the Gelberg-Andersen Behavioral Model for Vulnerable Populations

OBJECTIVE

Homeless people have disproportionately high rates of viral hepatitis. The Gelberg-Andersen Behavioral Model for Vulnerable Populations (predisposing, enabling, and need variables) was expanded to predict prevalence and awareness of hepatitis B (HBV) or hepatitis C (HCV) infection, as well as health services utilization (HSU) among homeless adults using structural equation modeling.

DESIGN

A population-based sample of 534 homeless adults in Los Angeles' "Skid Row" was interviewed and tested for HBV and HCV.

MAIN OUTCOME MEASURES

Main outcome measures included HBV/HCV seropositivity, awareness of seropositivity, and HSU in the previous 12 months.

RESULTS

Seropositivity (43%), usually unknown (72% of seropositives), was predicted by injection drug use, alcohol use, older age, and risky sexual behavior. No regular source of care, risky sexual behavior, less case management, and greater age predicted not knowing one's positive status. Health insurance, younger age, alcohol use, perceived bad health and more medical conditions predicted emergency room (ER) use; ER use was less likely among seropositives. Hospitalizations were predicted by more medical conditions and greater percentage of life homeless and were less frequent among African Americans and males. Ambulatory visits were predicted by a regular source of care, case management, more education and perceived bad health; they were less likely among seropositives.

CONCLUSION

The Gelberg-Andersen Behavioral Model provided a useful guide for predicting HBV/HCV positivity as well as HSU in homeless adults. Most hepatitis-positives did not know their status and used health services less often than other homeless adults. More aggressive detection of hepatitis B and C among homeless adults is needed.

A randomized controlled study of accelerated versus standard hepatitis B vaccination in HIV-positive patients

BACKGROUND

In human immunodeficiency virus (HIV)-infected patients, the immunogenicity of hepatitis B vaccines is impaired. The primary and secondary aims of our study were to investigate the effectiveness and compliance of 2 different vaccination regimen in an HIV-infected population.

METHODS

A noninferiority trial with a 10% response margin was designed. Included were patients ≥ 18 years old, with negative HBsAg/anti-HBc serology, and not previously vaccinated against hepatitis B. Patients were stratified according to CD4(+) cell count: <200, 200-500, >500. Participants received 10 μg HBvaxPRO intramuscularly according to a 0-1-3 week schedule or the standard 0-4-24 week schedule. Anti-HBs levels were measured at week 28, considered protective ≥ 10 IU/L.

RESULTS

Modified intention to treat analysis in 761 patients was performed. Overall response difference was 50%(standard arm) versus 38.7% (accelerated arm) =11.3% (95% confidence interval [CI], [4.3, 18.3]), close to the 10% response margin. In CD4(+) cell count group 200-500 cells/mm(3,) the response difference was 20.8% (95% CI [10.9, 30.7]). However, the response difference in CD4(+)cell count group >500 cells/mm(3) was -1.8% (95% CI [-13.4,+9.7]). Compliance was significantly superior with the accelerated schedule, 91.8% versus 82.7% (P ≤ .001).

CONCLUSION

In HIV-infected patients, compliance with an accelerated hepatitis B vaccination schedule is significantly better. The efficacy of an accelerated schedule proved to be non-inferior in CD4(+) cell count group >500 cells/mm(3).

CLINICAL TRIALS REGISTRATION

CT00230061.

[The meaning of illness among Korean Americans with chronic hepatitis B]

PURPOSE

This ethnography was done to explore the meaning of illness in Korean Americans with chronic hepatitis B.

METHODS

The participants were 6 patients with chronic hepatitis B and 6 general informants who could provide relevant data. Data were collected from iterative fieldwork with ethnographic interviews within Korean communities in two cities in the United States. Data were analyzed using causal chain analysis developed by Wolcott.

RESULTS

The analyses revealed three meanings for the illness: hidden disease, intentionally hidden disease, and inevitably hidden disease. The contexts of meaning of illness included characteristics of the illness, social stigma, structure of health care system and communication patterns and discourse between health care providers and clients.

CONCLUSION

The meaning of illness was based on folk illness concepts and constructed in the sociocultural context. Folk etiology, pathology and interpretation of one's symptoms were factors influencing illness behavior. These findings could be a cornerstone for culture specific care for Korean Americans with chronic hepatitis B.

Correlates of depressive symptoms among homeless young adults

Adolescent homelessness has received increasing attention because of its fast growth throughout the United States and the poor mental outcomes experienced by homeless young people. This cross-sectional study (N = 156) identified correlates of depressive symptomatology among homeless young adults and investigated how depressive symptoms are influenced by the coping strategies these young adults use. The findings are based on analysis of baseline data collected for a hepatitis vaccination intervention pilot study conducted in partnership with a young adult's drop-in center in Santa Monica, California. Standardized tools assessed drug use history, coping ability, and psychiatric symptomatology. Linear regression modeling was used to identify correlates of depressive symptom severity. Poor perceived physical health, recent crack cocaine use, and recent use of tranquilizers were significantly associated with increased severity of depressive symptoms. Self-destructive escape, nondisclosure/avoidance, passive problem solving, and thoughts of harming self were also associated with increased severity of depressive symptoms.

Completion and subject loss within an intensive hepatitis vaccination intervention among homeless adults: the role of risk factors, demographics, and psychosocial variables

OBJECTIVE

Unprotected sexual behavior, needle sharing, and a prison history are major correlates of hepatitis B Virus (HBV). These risk factors are common among homeless people who also have elevated rates of HBV. We examine whether these behaviors were associated with completion or loss to follow-up of the most intensive and successful condition of a 3-arm HBV vaccination intervention. Significant results would imply that those most in need are the least compliant. Contributions of baseline demographics, physical health, psychosocial variables, and health beliefs were also assessed.

DESIGN

Three-hundred thirty-one adults from Los Angeles' Skid Row were assigned to nurse-case-managed sessions with hepatitis education, incentives, and tracking. Successive predictive structural equation models assessed the amount of variance accounted for by the risk variables, demographics, and the health-related variables.

MAIN OUTCOME MEASURES

(1) Completion of 3 injections by 6 months; and (2) loss to a 6-month follow-up questionnaire.

RESULTS

The 3 risk factors explained 2% of the variance in completion and 1% of the variance in loss. Adding the other variables increased the variance explained to 14% for completion and 13% for loss. African American ethnicity, positive coping, social support, poorer health, no prison history, and greater efficacy significantly predicted completion. White ethnicity, less social support, better health, and less intention to complete predicted participant loss.

CONCLUSION

The program was not strongly rejected differentially as a function of preexisting hepatitis B risk behaviors. Programs designed for homeless people should include malleable psychosocial and health belief model variables. These aspects of the lives of homeless people provide leverage points for future interventions.

Predictors of hepatitis knowledge improvement among methadone maintained clients enrolled in a hepatitis intervention program

This randomized, controlled study (n = 256) was conducted to compare three interventions designed to promote hepatitis A virus (HAV) and hepatitis B virus (HBV) vaccination completion, among clients undergoing methadone maintenance treatment (MMT) in Los Angeles and Santa Monica. The participants were randomized into three groups: Motivational Interviewing-Single Session (MI-Single), Motivational Interviewing-Group (MI-Group), or Nurse-Led Hepatitis Health Promotion (HHP). All three treatment groups received the 3-series HAV/HBV vaccine. The MI sessions were provided by trained therapists, the Nurse-Led HHP sessions were delivered by a research nurse. The main outcome variable of interest was improvement in HBV and HCV knowledge, measured by a 6-item HBV and a 7-item HCV knowledge and attitude tool that was administered at baseline and at 6-month follow-up. The study results showed that there was a significant increase in HBV- and HCV-related knowledge across all three groups (p < 0.0001). There were no significant differences found with respect to knowledge acquisition among the groups. Irrespective of treatment group, gender (P = 0.008), study site (P < 0.0001) and whether a participant was abused as a child (P = 0.017) were all found to be predictors of HCV knowledge improvement; only recruitment site (P < 0.0001) was found to be a predictor of HBV knowledge. The authors concluded that, although MI-Single, MI-Group and Nurse-Led HHP are all effective in promoting HBV and HCV knowledge acquisition among MMT clients, Nurse-Led HHP may be the method of choice for this population as it may be easier to integrate and with additional investigation may prove to be more cost efficient.

Predictors of HAV/HBV vaccination completion among methadone maintenance clients

This randomized, controlled study (N = 256) was conducted to compare three interventions designed to promote hepatitis A virus (HAV) and hepatitis B virus (HBV) vaccination completion among clients undergoing methadone maintenance (MM) treatment. Participants were recruited from five MM treatment sites in Southern California and randomized into three groups: Motivational Interviewing-Single (MI-Single), Motivational Interviewing-Group (MI-Group); and Nurse-Led Hepatitis Health Promotion (HHP). All were offered the three-series HAV/HBV vaccine. A total of 148 participants completed the vaccine. Groups did not differ in rate of vaccination completion (73.6%, HHP group, vs. 65% and 69% for the MI-Single and MI-Group, respectively). The equivalence of findings across groups suggests the value of including nurses with a comprehensive health focus in promoting vaccination completion.

Feasibility of completing an accelerated vaccine series for homeless adults

Homeless adults are at high risk for hepatitis B virus (HBV) infection. In addition to culturally sensitive programmes designed to enhance vaccination compliance, accelerated HBV vaccination (three doses over 21 days) have also been suggested to improve compliance among high-risk groups. In this paper, we examined predictors of completers of two of three doses of a HAV/HBV vaccine series, normally delivered over a 6-month period, to simulate compliance with an accelerated series, dosed over 4 weeks. A convenience sample of 865 homeless adults was randomized into a nurse case-managed approach (NCMIT) vs standard programmes with (SIT) and without tracking (SI). Each group was assessed for completion of two of the three dose HAV/HBV vaccine series as well as the full three dose vaccine series. Sixty-eight percent of the NCMIT participants completed the three dose vaccination series at 6 months compared to 61% of SIT participants and 54% of SI participants. Eighty-one percent of the NCMIT participants completed two of the vaccinations compared to 78% of SIT participants and 73% of SI participants. The NCMIT approach resulted in greater numbers of completers of two of three doses and of the full three dose vaccine series. Predictors of completers of two doses and the full three dose vaccine series are provided. A greater number of homeless persons completed two doses across the three groups compared to the three dose vaccine series. The use of nurse case-management and tracking, coupled with an accelerated HAV/HBV vaccination schedule, may optimize vaccination compliance in homeless adults.