Translating a Proven Pediatric Healthy Homes Asthma Intervention to Adults

Patient Advocates for Low-Income Adults with Moderate to Severe Asthma: A Randomized Clinical Trial

BACKGROUND

Few interventions have targeted low-income adults with moderate to severe asthma despite their high mortality.

OBJECTIVE

To assess whether a patient advocate (PA) intervention improves asthma outcomes over usual care (UC).

METHODS

This 2-armed randomized clinical trial recruited adults with moderate to severe asthma from primary care and asthma-specialty practices serving low-income neighborhoods. Patients were randomized to 6 months of a PA intervention or UC. PAs were recent college graduates anticipating health care careers, who coached, modeled, and assisted participants with preparations for asthma-related medical visits, attended visits, and confirmed participants' understanding of provider recommendations. Participants were followed for at least a year for patient-centered asthma outcomes: asthma control (primary outcome), quality of life, prednisone requirements, emergency department visits, and hospitalizations.

RESULTS

There were 312 participants. Their mean age was 51 years (range, 19-93 years), 69% were women, 66% African American, 8% Hispanic/Latino, 62% reported hospitalization for asthma in the year before randomization, 21% had diabetes, and 61% had a body mass index of 30 or more. Asthma control improved over 12 months, more in the intervention group (-0.45 [95% CI, -0.67 to -0.21]) than in the UC group (-0.26 [95% CI, -0.53 to -0.01]), and was sustained at 24 months but with no statistical difference between groups. The 6-month rate of emergency department visits decreased in the intervention (-0.90 [95% CI, -1.56 to -0.42]) and UC (-0.42 [95% CI, -0.72 to -0.06]) groups over 12 months. The cost of the PA program was $1521 per patient. Only 64% of those assigned had a PA visit.

CONCLUSIONS

A PA may be a promising intervention to improve and sustain outcomes in this high-risk population if expanded to address factors that make keeping appointments difficult.

Design of a home-based intervention for Houston-area African-American adults with asthma: Methods and lessons learned from a pragmatic randomized trial

A growing body of evidence demonstrates that home-based, multicomponent interventions can effectively reduce exposures to asthma triggers and decrease asthma symptoms. However, few of these studies have targeted adults. To address this and other research gaps, we designed and implemented a pragmatic randomized clinical trial, the Houston Home-based Integrated Intervention Targeting Better Asthma Control (HIITBAC) for African Americans, to assess the effectiveness of a home-based intervention to improve asthma control and quality of life in African-American adults-a population disproportionately affected by asthma. The primary goals were to help participants reduce allergens and irritants in their homes and better manage their disease through knowledge, improved medication use, and behavior change. HIITBAC had two groups: clinic-only and home-visit groups. Both groups received enhanced clinical care, but the home-visit group also received a detailed home assessment and four additional home visits spaced over roughly one year. We recruited 263 participants. Of these, 152 (57.8%) were recruited through electronic health record data, 51 (19.4%) through Emergency Medical Services data, and 60 (22.8%) through other efforts (e.g., emergency departments, community events, outreach). Seventy participants (26.6%) were lost to follow up, substantially more in the home-visit than in the clinic-only group. We describe the HIITBAC methodology and cohort, discuss lessons learned about recruitment and retention, and highlight adaptations we implemented to address these lessons.

Filling the patient-provider knowledge gap: a patient advocate to address asthma care and self-management barriers

Introduction: In an ongoing study, a new clinical role adapted from a patient navigator called the patient advocate (PA) met with patients before medical visits, attended appointments and afterwards reviewed provider instructions. This qualitative analysis examines the perspectives of PAs and providers regarding their experiences with patients to understand how a PA can help patients and providers achieve better asthma control. Methods: PAs recorded journal entries about their experiences with patients. Provider focus groups and interviews were conducted by researchers and transcribed. Analysis was based on the Grounded Theory approach for qualitative research, using open and then focused coding. Two researchers independently coded these sources until intercoder agreement was achieved. Results: Upon review of 31 journal entries on PA experiences with 24 patients and transcripts from 2 provider focus groups and 12 provider interviews, 5 themes emerged surrounding asthma care and self-management: medication adherence, follow-up, communication, social determinants of health and time. While patients shared with PAs specific socioeconomic barriers to medication adherence and follow-up, providers often did not know about these problems and cited barriers to communication. Time restrictions on medical visits further limited communication. Conclusions: Perspectives reported here illustrate a gap in knowledge and understanding between patients and providers. The PA's unique relationship with patients and presence inside and outside of medical visits allowed them to learn contextual patient information unknown to providers. PAs and providers cited numerous ways PAs can help to improve patient-provider mutual understanding.

A patient advocate to facilitate access and improve communication, care, and outcomes in adults with moderate or severe asthma: Rationale, design, and methods of a randomized controlled trial

Few interventions to improve asthma outcomes have targeted low-income minority adults. Even fewer have focused on the real-world practice where care is delivered. We adapted a patient navigator, here called a Patient Advocate (PA), a term preferred by patients, to facilitate and maintain access to chronic care for adults with moderate or severe asthma and prevalent co-morbidities recruited from clinics serving low-income urban neighborhoods. We describe the planning, design, methodology (informed by patient and provider focus groups), baseline results, and challenges of an ongoing randomized controlled trial of 312 adults of a PA intervention implemented in a variety of practices. The PA coaches, models, and assists participants with preparations for a visit with the asthma clinician; attends the visit with permission of participant and provider; and confirms participants' understanding of what transpired at the visit. The PA facilitates scheduling, obtaining insurance coverage, overcoming patients' unique social and administrative barriers to carrying out medical advice and transfer of information between providers and patients. PA activities are individualized, take account of comorbidities, and are generalizable to other chronic diseases. PAs are recent college graduates interested in health-related careers, research experience, working with patients, and generally have the same race/ethnicity distribution as potential participants. We test whether the PA intervention, compared to usual care, is associated with improved and sustained asthma control and other asthma outcomes (prednisone bursts, ED visits, hospitalizations, quality of life, FEV1) relative to baseline. Mediators and moderators of the PA-asthma outcome relationship are examined along with the intervention's cost-effectiveness.