Effect of a Nurse-Led Community Health Worker Intervention on Latent Tuberculosis Medication Completion Among Homeless Adults

Peer and lay health work for people experiencing homelessness: A scoping review

Homelessness poses complex health obstacles for individuals and communities. Peer and lay health worker programs aim to increase access to health care and improve health outcomes for PEH by building trust and empowering community-based workers. The scope and breadth of peer and lay health worker programs among PEH has not been synthesized. The primary objective of this scoping review is to understand the context (setting, community, condition or disease) encompassing peer and lay health worker programs within the homelessness sector. The secondary objective is to examine the factors that either facilitate or hinder the effectiveness of peer and lay health worker programs when applied to people experiencing homelessness (PEH). We searched CINHAL, Cochrane, Web of Science Core Collection, PsycINFO, Google Scholar and MEDLINE. We conducted independent and duplicate screening of titles and abstracts, and extracted information from eligible studies including study and intervention characteristics, peer personnel characteristics, outcome measures, and the inhibitors and enablers of effective programs. We discuss how peer and lay health work programs have successfully been implemented in various contexts including substance use, chronic disease management, harm reduction, and mental health among people experiencing homelessness. These programs reported four themes of enablers (shared experiences, trust and rapport, strong knowledge base, and flexibility of role) and five themes of barriers and inhibitors (lack of support and clear scope of role, poor attendance, precarious work and high turnover, safety, and mental well-being and relational boundaries). Organizations seeking to implement these interventions should anticipate and plan around the enablers and barriers to promote program success. Further investigation is needed to understand how peer and lay health work programs are implemented, the mechanisms and processes that drive effective peer and lay health work among PEH, and to establish best practices for these programs.

Factors Associated With the Discontinuation of Two Short-Course Tuberculosis Preventive Therapies in Programmatic Settings in the United States

Background

The objective of this study was to investigate timing and risk factors for discontinuation of short-course tuberculosis preventive therapy (TPT) comparing directly observed 3-month isoniazid/rifapentine (3HP) vs self-administered 4-month rifampin (4R).

Methods

This was a subanalysis of a 6-month health department cohort (2016-2017) of 993 latent tuberculosis infection (LTBI) patients initiating 3HP (20%) or 4R (80%). Time at risk of TPT discontinuation was compared across regimens. Risk factors were assessed using mixed-effects Cox models.

Results

Short-course TPT discontinuation was higher with 4R (31% vs 14%; P < .0001), though discontinuation timing was similar. Latino ethnicity (hazard ratio [HR], 1.80; 95% CI, 1.20-2.90) and adverse events (HR, 4.30; 95% CI, 2.60-7.30) increased 3HP discontinuation risk. Social-behavioral factors such as substance misuse (HR, 12.00; 95% CI, 2.20-69.00) and congregate living (HR, 21.00; 95% CI, 1.20-360.00) increased 4R discontinuation risk.

Conclusions

TPT discontinuation differed by regimen, with distinct risk factors. Addressing social determinants of health within TPT programs is critical to enhance completion rates and reduce TB disease risk in marginalized populations.

Interventions to improve latent and active tuberculosis treatment completion rates in underserved groups in low incidence countries: a scoping review

BACKGROUND

People in underserved groups have higher rates of tuberculosis (TB) and poorer treatment outcomes compared with people with no social risk factors.

OBJECTIVES

This scoping review aimed to identify interventions that improve TB treatment adherence or completion rates.

ELIGIBILITY CRITERIA

Studies of any design focusing on interventions to improve adherence or completion of TB treatment in underserved populations in low incidence countries.

SOURCES OF EVIDENCE

MEDLINE, Embase and Cochrane CENTRAL were searched (January 2015 to December 2023).

CHARTING METHODS

Piloted data extraction forms were used. Findings were tabulated and reported narratively. Formal risk of bias assessment or synthesis was not undertaken.

RESULTS

47 studies were identified. There was substantial heterogeneity in study design, population, intervention components, usual care and definition of completion rates. Most studies were in migrants or refugees, with fewer in populations with other risk factors (eg, homelessness, imprisonment or substance abuse). Based on controlled studies, there was limited evidence to suggest that shorter treatment regimens, video-observed therapy (compared with directly observed therapy), directly observed therapy (compared with self-administered treatment) and approaches that include tailored health or social support beyond TB treatment may lead to improved outcomes. This evidence is mostly observational and subject to confounding. There were no studies in Gypsy, Roma and Traveller populations, or individuals with mental health disorders and only one in sex workers. Barriers to treatment adherence included a lack of knowledge around TB, lack of general health or social support and side effects. Facilitators included health education, trusted relationships between patients and healthcare staff, social support and reduced treatment duration.

CONCLUSIONS

The evidence base is limited, and few controlled studies exist. Further high-quality research in well-defined underserved populations is needed to confirm the limited findings and inform policy and practice in TB management. Further qualitative research should include more people from underserved groups.

Diagnosis and management of tuberculosis infection in inclusion health populations in London

BACKGROUND

Tuberculosis in the UK is more prevalent in people with social risk factors- e.g. previous incarceration, homelessness - and in migrants from TB endemic countries. The management of TB infection is part of TB elimination strategies, but is challenging to provide to socially excluded groups and the evidence base for effective interventions is small.

METHODS

We evaluated a TB infection screening and treatment programme provided by a peer-led service (Find&Treat) working in inclusion health settings (e.g. homeless hostels) in London. IGRA (interferon-gamma release assay) testing and TB infection treatment were offered to eligible adults using a community-based model. The primary outcome was successful progression through the cascade of care. We also evaluated socio-demographic characteristics associated with a positive IGRA.

RESULTS

42/312 (13.5%) participants had a positive IGRA and no one had evidence of active TB. 35/42 completed a medical evaluation; 22 started treatment, and 17 completed treatment. Having a positive IGRA was associated with previous incarceration and being born outside of the UK.

DISCUSSION

Provision of TB infection diagnosis and management to this socially excluded population has several challenges including maintaining people in care and drug-drug interactions. Peer-support workers provided this service safely and effectively with appropriate support. Further work to generate data to inform risks and benefits of treatment for TB infection in this group is needed to facilitate joint decision making.

Pilot randomized controlled trial of biofeedback on reducing psychological and physiological stress among persons experiencing homelessness

People experiencing homelessness report increased exposure to traumatic life events and higher rates of depression, anxiety, and post-traumatic stress disorder as compared with the general population. Heart rate variability-biofeedback (HRV-BF) has been shown to decrease symptoms of stress, anxiety, depression, and PTSD. However, HRV-BF has not been tested with the most vulnerable of populations, homeless adults. The purpose of this randomized controlled trial was to compare the effectiveness of an HRV-BF intervention versus a Health Promotion (HP) active control intervention focused on improving mental health symptoms among homeless adults. Guided by a community advisory board, homeless adults residing in Skid Row, Los Angeles (n = 40) were randomized to either the HRV-BF or an active HP control group and received eight weekly, 30-min sessions over two months, delivered by a nurse-led community health worker team. Dependent variables of HRV, mental health, anxiety, depression, and PTSD were measured at baseline, the 8-week session, and/or 2-month follow-up. All intervention sessions were completed by 90% (36/40) of participants. Both the HRV-BF and HP interventions showed significant increases in HRV from baseline to 2-month follow-up, with no significant difference between the intervention groups. The HRV-BF programme revealed a somewhat greater, although non-significant, improvement in anxiety, depression, and PTSD symptoms than the HP programme. The usefulness of both interventions, focused on emotional and physical health, warrants future studies to examine the value of a combined HRV-BF and HP intervention.

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.

The Future of the Psychiatric Mental Health Nursing Workforce: Using Our Skill Set to Address Incongruities in Mental Health Care Delivery

The USA is dealing with well-documented issues around mental health and its treatment. The Psychiatric Mental Health (PMH) workforce is growing and practicing in a variety of roles within the mental health system. How will PMH nurses address instances when the structure of services does not meet the mental health needs of the population? In this piece, I argue that to some degree the future of the PMH workforce will be determined by how well we use our capacity and capabilities to address incongruities in service structure and population needs. Five areas of concern with mental health services are outlined; they all involve factors that can be addressed with innovative approaches and optimum utilization of the PMH workforce. Included are suggestions on how PMH nurses might direct efforts toward these service issues, particularly by using their skill set and presence in the mental health system. Strategies include forging a tighter connection between the work of advanced practice and registered nurses in delivering care. Broadly, these efforts should be directed at building models of patient-centered care that address the needs of populations, reducing disparities, and demonstrating how engagement is a critical lever of effective inpatient and community-based care.

Exploratory assessment: Nurse-led community health worker delivered HCV intervention for people experiencing homelessness

BACKGROUND

Getting and maintaining Hepatitis C Virus (HCV) cure is challenging among people experiencing homelessness (PEH) as a result of critical social determinants of health such as unstable housing, mental health disorders, and drug and alcohol use.

OBJECTIVES

The purpose of this exploratory pilot study was to compare a registered nurse/community health worker (RN/CHW)-led HCV intervention tailored for PEH, "I am HCV Free," with a clinic-based standard of care (cbSOC) for treating HCV. Efficacy was measured by sustained virological response at 12 weeks after stopping antivirals (SVR12), and improvement in mental health, drug and alcohol use, and access to healthcare.

METHODS

An exploratory randomized controlled trial design was used to assign PEH recruited from partner sites in the Skid Row Area of Los Angeles, California, to the RN/CHW or cbSOC programs. All received direct-acting antivirals. The RN/CHW group received directly observed therapy in community-based settings, incentives for taking HCV medications, and wrap-around services, including connection to additional healthcare services, housing support, and referral to other community services. For all PEH, drug and alcohol use and mental health symptoms were measured at month 2 or 3 and 5 or 6 follow-up, depending on HCV medication type, while SVR12 was measured at month 5 or 6 follow-up.

RESULTS

Among PEH in the RN/CHW group, 75% (3 of 4) completed SVR12 and all three attained undetectable viral load. This was compared with 66.7% (n = 4 of 6) of the cbSOC group who completed SVR12; all four attained undetectable viral load. The RN/CHW group, as compared to the cbSOC, also showed greater improvements in mental health, and significant improvement in drug use, and access to healthcare services.

DISCUSSION

While this study shows significant improvements in drug use and health service access among the RN/-CHW group, the sample size of the study limits the validity and generalizability of the results. Further studies using larger sample sizes are necessitated.

"It's too hard" - the management of latent TB in under-served populations in the UK: a qualitative study

BACKGROUND

UK national guidance recommends systematic screening for latent tuberculosis infection (LTBI) in under-served populations, including people experiencing homelessness and people who use drugs. This is not routinely implemented in the UK, and the reasons for this policy-practice mismatch remain underexplored.

METHODS

Semi-structured qualitative interviews were conducted with 19 healthcare professionals from across the UK. Participants were recruited using purposive sampling and snowballing, identifying individuals with excellent knowledge of their regions practice and policy of LTBI management. The interviews were conducted online, and were audio recorded, with transcripts thematically analysed using a two-stage inductive coding process to explore perceived barriers and enablers to LTBI screening.

RESULTS

Most participants had previous experience managing LTBI in under-served populations, but none were conducting systematic screening as per national guidance. We identified service provision challenges and low prioritisation of LTBI as the key explanatory themes driving this policy-practice mismatch. Lack of resource, and the complexity of clinical decision making were two key service level barriers. System and service inertia, and lack of cost effectiveness evidence led to LTBI being deprioritised. Service integration and promotion of WHO targets for TB elimination were highlighted as potential solutions.

CONCLUSION

Integrating LTBI testing and treatment with existing health services for under-served populations could improve feasibility and efficacy. Promotion of UK TB elimination goals and generation of regional evidence to support commissioning for LTBI care is vital. Without such a multi-pronged approach inertia is likely to persist and the zeitgeist will remain: "it's too hard".

A multi-method exploration of mindfulness as a coping tool: Perspectives from trauma-exposed, unhoused women residing at a drug treatment facility

This multi-method study examined perspectives on mindfulness and coping strategies used by trauma-exposed women experiencing homelessness (WEH), residing in a state-funded residential drug treatment site in Southern California (United States). Questionnaires and in-depth focus group interviews were utilised to examine traumatic experiences over the lifespan, probable-posttraumatic stress disorder (PTSD), and coping strategies. Mindfulness was explored as a potential way to improve coping; potential benefits and challenges associated with implementing a mindfulness-based intervention (MBI) with trauma-exposed WEH were also investigated. A Community Advisory Board (CAB) was formed to identify key issues experienced by WEH and to develop a semi structured interview guide (SSIG). Using the SSIG, women participated in one of four focus groups (total N = 28; n = 7 per group). Quantitative data on demographic indicators, probable-PTSD, and trauma exposure were collected. Almost 90% of women met criteria for probable-PTSD; trauma exposure was exceedingly high; most women had experienced multiple traumas throughout their lives. Four main themes emerged from qualitative analyses, which drew from Grounded Theory and used open, selective, and axial coding: (1) ways of coping with trauma; (2) perspectives on mindfulness; (3) prior experiences with mindfulness; and (4) challenges for conducting a mindfulness programme. Overall, WEH used a variety of coping techniques to deal with their trauma, had some familiarity with mindfulness, and were optimistic an MBI would be helpful, despite identifying several challenges to implementation. MBIs may be helpful adjuncts to traditional care for trauma-exposed, WEH, recovering from substance use disorder. Population-specific considerations may improve implementation and participation.

Nurse-Led Intervention Improves Tuberculosis Treatment Completion in Homeless Population

According to this study: A nurse-led community health worker program resulted in a high rate of treatment completion among adults who were homeless and had latent tuberculosis infection.

Nurse-led intervention to decrease drug use among LTBI positive homeless adults

BACKGROUND

People experiencing homelessness (PEH) are disproportionately diagnosed with active tuberculosis. While promoting latent tuberculosis infection (LTBI) treatment has been a call to action, PEH engaging in substance use often experience challenges in completing LTBI treatment.

METHODS

In this non-randomized single arm study, we tested an innovative, community-based, nurse-led community health worker (RN-CHW) model, on reducing drug use among 50 PEH, residing in homeless shelters or living on the streets in Los Angeles. Follow-up was at 3- and 6- months.

RESULTS

Findings revealed significant and ongoing decrease in any drug use (odds ratio [OR] = 0.30; 95% confidence interval [CI] = 0.14-0.68); p = .004), amphetamine use (OR = 0.14; 95% CI = 0.02-0.81; p = .029), cannabis use (OR = 0.26; 95% CI = 0.12-0.57; p = .001) and methamphetamine use (OR = 0.30; 95% CI = 0.10-0.90; p = .031) at 6-month follow-up.

CONCLUSIONS

To our knowledge, this pilot study is the first to evaluate the impact a RN-CHW delivered intervention on reduction in drug use among PEH enrolled in a LTBI intervention. LTBI interventions may serve as an entryway into reduction in drug use among this underserved population.

"Without my medication, I'm a wreck": Photo-elicitation to explore medication use among people experiencing homelessness

BACKGROUND

People experiencing homelessness (PEH) live with a high burden of chronic illness, functional and cognitive impairments, and serious mental illness. Many PEH are prescribed complex medication regimens to manage symptoms and improve health and functioning. However, medication use within the context of homelessness is complicated, and adherence is often suboptimal.

OBJECTIVE

To document medication use within the context of homelessness and explore experiences of medication use among people experiencing homelessness (PEH).

METHODS

This study used mixed methods including photo-elicitation interviews. Participants were given a digital camera and asked to take pictures of people, places, things, and situations that represented every day medication use. Participants were also asked to write down reasons for taking the pictures. After two weeks, participants returned the camera and notes. At a subsequent interview, the photographs and notes were reviewed and discussed. Demographic and health-related information was also collected for each participant. An interpretive description approach was used for qualitative data analysis. Quantitative data were analyzed using descriptive statistics in order to describe the sample.

RESULTS

Seven PEH completed this study. Mean age was 45 years (SD = 11.3) and length of homelessness was 6.1 years (SD = 11.3). All reported multiple chronic conditions (≥2) and reported taking 6.6 (SD = 2.6) medications. Participants reported medication adherence barriers with mean score of 37 (SD = 5.5) on the ASK-12, a 12-item scale with a range of 12-60 (higher scores indicate more barriers). Qualitative analysis identified four categories: medication-related burdens, medication-related beliefs, connectedness, and stigmatizing encounters.

CONCLUSIONS

Medication use among PEH is complex and cannot be considered separately from daily life or from struggles to meet basic needs. Multi-level interventions are needed to optimize medication use among PEH, and healthcare professionals including community pharmacists should reinforce beliefs that medication-related benefits outweigh the burdens and then tailor services to the context of homelessness.