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Leas BF, Tipton K, Bryant-Stephens T, et al. Characteristics of Existing Asthma Self-Management Education Packages [Internet]. Rockville (MD): Agency for Healthcare Research and Quality (US); 2020 Apr. (Technical Brief, No. 35.)

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Characteristics of Existing Asthma Self-Management Education Packages [Internet].

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Findings

We identified 25 potentially relevant asthma self-management education (AS-ME) packages through our searches of published and grey literature sources, Key Informant (KI) interviews, and discussion with the Centers for Disease Control and Prevention (CDC). We included and evaluated 14 packages in this Technical Brief. We were unable to acquire six packages, usually because we could not identify a source with direct access to the materials, or our requests for access received no replies, and we excluded five because they did not meet our inclusion criteria. Appendix B has a description of packages we did not review and the reasons for exclusion.

Our search of the published literature identified 293 potentially relevant studies. We excluded 189 studies during title and abstract screening because they were not relevant to the Guiding Questions (GQs) or did not include patients in the United States. This resulted in full-text screening of 104 articles. We excluded 64 studies at the full-text level. Appendix C has a list of excluded studies organized by reason for exclusion.

We included 40 articles in our review. Seven were systematic reviews, 16 were randomized controlled trials (RCTs), 16 were observational studies, and we included one descriptive study. Figure 1 presents a PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) flow diagram of our study screening.

A search of ClinicalTrials.gov identified 10 trials of AS-ME interventions currently underway in the United States. Seven trials are categorized as “Recruiting,” two trials are “Active, not recruiting,” and one trial is “Not yet recruiting.” These ongoing studies suggest substantial interest and investment in developing additional AS-ME interventions.

Figure 1 shows a study flow diagram. The citations identified by the literature searches (293) enters the flow diagram at the top. These citations are screened by title and abstract, with the number excluded (189) listed in a box to the right. Continuing down the flow diagram, the number of articles retrieved (104) for full-article screening are shown in a box, and then they are screened against the full set of inclusion criteria. Excluded articles (64) exit the diagram to the right and are listed in a box with specific reasons for exclusion. Finally, at the bottom of the diagram the number of included studies (40) is shown.

Figure 1

Study attrition diagram.

Organization of This Report

In the first section we address GQ 1 by describing and summarizing key structural characteristics of the 14 AS-ME packages we reviewed, focusing on who uses them, how they are designed, and their content. Table 3 describes the intended audience, patient population, setting, and available languages for each package. Table 4 describes how each package is accessed and delivered to end-users. Tables 5 and 6 describe the packages’ components, including curriculum and other key features such as asthma action plans.

In GQ 2 we discuss the implementation of AS-ME packages. This section addresses how packages were developed, disseminated, and funded, and how educators can be trained to deliver AS-ME. We also address barriers to implementation. Our findings are informed by KI feedback as well as our own review of the 14 AS-ME packages. Table 7 summarizes important aspects of implementation for each package. Figure 2 provides an overview of the characteristics of existing AS-ME packages and relevant implementation factors.

GQ 3 examines evidence for the effectiveness of AS-ME packages. We reviewed and synthesized 40 published articles that met our inclusion criteria. Figures 3 through 6 summarize the study design, setting, population, and outcomes addressed in the evidence base. Table 8 lists the packages that were evaluated in these studies, and Table 9 summarizes study findings by key outcome.

In GQ 4 we highlight future needs for AS-ME development, implementation, and research, which are summarized in Table 10.

Additional details about the AS-ME packages and published literature that we reviewed are available in Appendix D.

Characteristics of AS-ME Packages (GQ 1)

Audience

AS-ME packages can be designed to educate asthma patients or their families directly, or they can be intended for training healthcare professionals such as health educators, school nurses, or clinicians who engage patients in self-management activities. Five of 14 packages we reviewed were designed to teach self-management skills to adults with asthma, while five other packages provide education to children or adolescents and/or their families and caregivers. (Throughout this Technical Brief, “children” are defined as less than 10 years old and “adolescents” are defined as 10 to 17 years old.) Additionally, two packages are intended to train healthcare professionals, specifically school nurses and clinical pediatricians, respectively, in strategies for teaching patients. Finally, two packages can serve multiple audiences. A Breath of Life is used to train health educators who then teach children and families in their local communities. It was also designed to directly educate parents of children and adolescents with asthma. Asthma 101 has been used to teach adult patients directly, and also to train nursing students, school personnel, childcare providers, and coaches. (Note: Asthma 101 is no longer available as a training program. For those who are interested in the content, the workbook is available to download for free from the American Lung Association (ALA) website. ALA suggests that stakeholders review its Asthma Basics program as an alternative.)

Patient Population

Several packages were designed for use in specific patient populations. A Breath of Life is intended to serve Latino communities, while Women Breathe Free is tailored to adult women with asthma. Packages produced by the Asthma and Allergy Foundation of America (AAFA), including Asthma Care for Adults, Wee Breathers, and You Can Control Asthma, emphasize their content is appropriate for multicultural, minority, and/or low-income communities. The packages we reviewed do not indicate whether their materials are suited to clinical subgroups at higher risk for poor outcomes, such as patients with obesity or other significant comorbidity. Only three packages indicate they are designed for patients with “mild to severe” or “moderate to severe” asthma, while the remaining packages do not explicitly address asthma severity.

Setting

AS-ME can be delivered in schools, patient homes, community sites, and healthcare facilities. The appropriate setting for each package depends on the intended audience and the location and role of the educator or facilitator. Most packages can be implemented in multiple types of settings; for example, You Can Control Asthma can be implemented in school, home, community, and healthcare settings. As noted above, A Breath of Life is intended for both community health educators and the subsequent education of parents in community settings. Six other packages were designed for various combinations of home, school, community, and healthcare environments. Finally, we identified two packages designed only for home use and two developed specifically for use in schools.

Language and Literacy

Language and literacy are important components of any program to improve patient self-management. All the packages we reviewed were designed in English; Spanish-language versions were available for 8 of 12 packages that include a patient-facing component (i.e., were not designed exclusively for professional training). We identified no package providing materials in any language other than English or Spanish. However, our KI interviews indicated that efforts are underway to produce AS-ME packages in additional languages, although details were not provided.

While identifying multilingual availability of the packages is easy, it is more challenging to determine if they are written at an appropriate literacy level for users. Asthma Care for Adults is described by the AAFA as “easy reading in plain language,” while Wee Breathers’ parent materials are written at a sixth-grade reading level. The parent materials for You Can Control Asthma are at a sixth-grade level as well, and the student component is written at a third-grade level. Other packages we reviewed did not self-identify literacy levels of potential users.

Table 3. Asthma self-management education packages: audience, patient population, setting, and language.

Table 3

Asthma self-management education packages: audience, patient population, setting, and language.

Delivery of Education

Nearly every package includes a potential face-to-face educational element. Packages intended for in-school use necessarily rely on in-person learning, but packages for parents or adult patients usually include in-person teaching as well. Three packages incorporate face-to-face teaching in community settings or the patient’s home. Two packages include a combination of in-person learning and scheduled phone calls between educators and patients. Two packages can be implemented through in-person education or self-directed learning without face-to-face interaction.

When learning is delivered in person to adult patients or parents, education is facilitated by a nurse, a respiratory therapist, or a nonclinical professional trained specifically in asthma education, such as a community health worker or other health educator. School-based programs are typically led by school nurses, or teachers who receive specialized training in health education. The packages are generally designed to be taught successfully by any of these categories of healthcare or educational professionals, and do not indicate specific limits on who can facilitate their use. Seven of the nine packages that include in-person teaching in school, home, community, or healthcare settings provide an instructor’s manual to guide facilitation.

The timeframe recommended for implementing in-person learning varies widely. School-based packages are designed to be delivered in four, five, or six sessions with each session lasting 40 to 60 minutes, depending on the package. Most in-person AS-ME packages for adult patients or parents range from four to seven sessions of approximately 1 hour each. Sessions can be scheduled on consecutive weeks or spaced out over a longer period of time, and packages are generally designed to be flexible and amenable to adaptation, to enable use in different settings with varying resources. The Breathe Well, Live Well package offers multiple alternatives, including one-day, two-day, three-day, and self-directed frameworks.

Interactivity and Technology

The reliance on in-person and phone-based teaching for most packages creates substantial opportunity for interactive learning including questions, feedback, and demonstrations of how to use devices such as inhalers and peak flow meters. School-based packages feature significant interactive opportunities such as games, skits, and role playing. Home-based packages lacking those elements provide patients or parents with tools or activities that expand the educational experience beyond a simple reading of didactic material. These tools or activities take numerous forms, such as self-evaluation activities that measure understanding of the material, structured assessments of the home environment to identify asthma triggers and reduce exposure, and asthma action plans and symptom logs that patients and families are encouraged to complete at home and share with their healthcare provider for review and discussion.

Few packages incorporate audiovisual elements, and only one includes a web-based component. All packages use paper-based materials, and five packages designed for patients or parents also include videos or audiovisual elements. We identified no apps meeting our inclusion criteria for packages, but several ongoing trials described in ClinicalTrials.gov examine apps or web-based educational interventions. Our KIs shared their experience that AS-ME developers and researchers have found, that patient engagement with asthma-oriented apps is difficult to sustain, with users frequently abandoning mobile-based interventions, while nonusers may have limited access to technology-based tools. Nevertheless, efforts to develop technology-based tools for asthma management remain an important focus of research and development.

Accessibility

Many AS-ME packages are readily available on the Internet for free, while access to several others include a fee and require the requestor to belong to or submit a formal request to the organization that developed the package. Nine of the packages we evaluated were freely available for downloading from the website of the sponsoring organization. These include the packages developed by the National Heart, Lung, and Blood Institute (NHLBI) (https://www.pathlms.com/aafa/courses/8092) or printed versions are provided at no cost for those who qualify, such as Federally Qualified Health Centers (FQHCs). For those who do not qualify, printed and bound editions can be purchased for $90. Of packages that we did not review, Asthma Education for the Community Health Care Worker, developed by the Association of Asthma Educators (AAE), can be ordered from the AAE after completion of a signed agreement and payment of $50 per manual, while Peak Performance USA, developed by the American Association for Respiratory Care, is described online as a free package, but we were unable to access the materials because a published URL link did not function properly and we could not identify any individuals who have direct knowledge of and access to the program.

Eleven packages are formally copyrighted, while one package is protected by a Creative Commons license. Several of these packages, though copyrighted, openly indicate that their materials can be reproduced with attribution. Additionally, our KIs indicated that they are aware of routine collaboration between several professional organizations to share AS-ME resources and avoid duplication of effort. However, developers generally expect that the content of their materials will not be altered, which may present challenges for organizations or end-users interested in modifying a package for a specific setting or population.

Table 4. Asthma self-management education packages: delivery and accessibility.

Table 4

Asthma self-management education packages: delivery and accessibility.

Educational Content

We evaluated each AS-ME package to identify the broad categories of educational content that comprise their curriculum. The broad areas we focused on were lung physiology, medication and device use, symptom management and asthma triggers. We found that content is generally homogenous across packages, with variations that primarily reflect differences in the intended audience and setting. Table 5 summarizes the content areas for each package.

Lung Physiology

Every package except one includes an overview of lung physiology with an emphasis on asthma-related inflammation. The packages differ primarily in the level of detail and the clinical sophistication of the language used. Packages designed for healthcare professionals include more clinical detail and jargon than packages for adult patients and parents, while packages for children present basic information in age-appropriate terms.

Medications and Devices

Nearly every package discusses controller and rescue medications, with content generally focused on each medication’s role in asthma care and the importance of using them optimally. Some packages go into greater detail about specific medication categories, such as the distinction between corticosteroids and long-acting beta agonists, but most packages focus on a high-level overview of medication use. Our KIs felt strongly that information about medication dosing is critical for asthma patients and must be presented in clear, straightforward language.

Device use is also featured in the curriculum. All but one package addresses inhaler use, often with diagrams or illustrations to assist patients. Six packages include information on using spacers, eight packages instruct patients about how to use peak flow meters, and three describe nebulizer use. We did not conduct a detailed comparison of specific device instructions or techniques across every package, but we note that our KIs identified variation in these approaches as a potential limitation of using AS-ME materials. For example, there are multiple techniques for inhaler use, and the instructions patients receive from their clinical team should be consistent with any AS-ME package they are provided, to avoid confusion.

Packages intended for adult patients are just as likely as packages for children and parents to include information about spacers, peak flow meters, or nebulizers. Most of the information addressing medications and devices is descriptive, but two also include recommendations for improving adherence. You Can Control Asthma, for example, provides parents with suggestions for encouraging children to become self-reliant regarding medication use.

Symptom Management

Nearly every package provides education on monitoring asthma symptoms, while seven also focus on preventing symptom onset or exacerbation. Six packages have a symptom log or symptom diary that patients can use to regularly track their asthma morbidity and share that information with their clinician. Eleven packages include an asthma action plan template that provides a framework for self-management. Our KIs emphasized that action plans are widely considered vital for successful asthma management, and they recommended that an individual patient’s plan should be shared with all of their caregivers and providers, including specialists and emergency department physicians.

Asthma Triggers

Thirteen packages include detailed information about common environmental (e.g., dust mites, pests) and behavioral (e.g., exercise, stress) triggers, and describes strategies for reducing or avoiding triggers at home or in school. Seven packages include checklists to help patients and their families identify and remediate triggers at home.

Additional Curriculum Elements

Several packages address the cognitive, psychological, or emotional challenges associated with asthma and asthma self-management, which our KIs identified as critical for successful asthma care. The Asthma Workbook and Women Breathe Free emphasize individual goal setting to address asthma symptoms, triggers, and overall health, and provide tools and guided activities to promote goal-oriented self-care. Asthma Basics for Children and Breathe Well, Live Well discuss stress management, relaxation strategies, and behavioral approaches to improve well-being. You Can Control Asthma and A Breath of Life address children’s feelings about their asthma and strategies for managing those challenges.

We also evaluated whether AS-ME packages include scientifically valid and up-to-date content, and are feasible to implement. Most packages were developed or updated in recent years, including six packages from 2019 or 2018 and three packages introduced or revised between 2013 and 2015. Two packages date from 2010, one is from 2005, and we were unable to determine the timeframe for the remaining two packages. Five packages are explicitly based on and are consistent with current clinical practice guidelines. Our KIs emphasized packages require regular review to ensure their currency, especially when national clinical practice guidelines are updated, and revised periodically to include new therapeutic interventions. Controlled clinical trials evaluating five packages have been published in peer-reviewed journals. Finally, five of the packages report undergoing pilot testing to assess their feasibility in practice. Additional information about the evidence base addressing AS-ME effectiveness and feasibility is described under GQ 3.

A final and critical part of a complex educational curriculum is assessing whether participants have learned the material and implemented new asthma management strategies in response to that learning. The packages we reviewed measure their impact in a variety of ways. Five packages include a set of knowledge-based questions that are administered before and after completion of the program, or upon completion of individual units/chapters/sessions, to determine the extent to which information was understood and retained. In a variation on this approach, Open Airways for Schools uses verbal questions embedded throughout the curriculum to assess student learning. Two packages rely on patient self-testing and assessment to evaluate their progress. Two other packages do not assess knowledge but instead measure each patient’s asthma morbidity before and after the program to evaluate clinical improvement.

Recognition of accomplishment is also important for patients and their families. Seven packages provide a formal certificate upon completion of their curriculum. Two of these are school-based, two are home or community-based packages for parents, and three are home-based packages for adults with asthma.

Table 5. Asthma self-management education packages: curriculum.

Table 5

Asthma self-management education packages: curriculum.

Table 6. Asthma self-management education packages: content features.

Table 6

Asthma self-management education packages: content features.

Implementation of AS-ME Packages (GQ 2)

The context in which AS-ME is implemented is critically important for success. We explored several major facets of implementation, including the development, dissemination, and availability of AS-ME packages, and the resources used to deliver, support, and sustain them. The packages are summarized in Table 7.

Development and Dissemination

The packages we reviewed were developed and/or are disseminated by nonprofit associations, academic institutions, or the federal government. Two leading organizations in promoting asthma care—ALA and AAFA —accounted for 9 of the 14 packages. NEEF has two packages, including one in collaboration with the National Association for School Nurses. Two packages come from the University of Michigan, and the remaining package is a project of NHLBI. The packages that we could not acquire or review fit a similar pattern, coming from institutions such as the Association of Asthma Educators, the American Association for Respiratory Care, Vanderbilt University, and Rush University Medical Center. We did not identify any AS-ME packages developed by for-profit commercial interests.

We found little information about how AS-ME packages are developed when we reviewed the materials contained in each package and the websites of the organizations that developed or promote them. Two packages disseminated by ALA and one package promoted by AAFA were initially designed and tested by independent groups of clinicians and researchers, whose work was later adopted and branded by those organizations. Other packages appear to have been developed in-house by the groups that currently disseminate them, but details are generally scarce. Several packages acknowledge individuals involved in their development but lack discussion about how they conducted their work. A few packages briefly describe field testing and review by clinical experts but do not provide additional context. Some packages do not include any details about the processes used in their development.

Based on their experiences, our KIs also provided insight, into some of the roles professional organizations serve in the development of AS-ME packages. For example, clinicians and other asthma educators often contact content developers to request additional content or tools that address challenges that may be specific to a patient population or a geographic region, and this can lead to development of new materials. Developers also partner directly with organizations representing specific populations, such as African-American or Hispanic patients, to tailor AS-ME packages to the needs of those communities. One recent effort has focused on collaboration with faith-based organizations to better reach their constituents. However, some developers do not have a direct relationship with patients and rely instead on providers and other stakeholders to inform their work and help shape their AS-ME efforts.

Costs and Resources

Data on the cost or resources associated with developing, producing, or disseminating AS-ME packages are also lacking. We found no publicly available information about such factors, and we identified no studies of specific packages that addressed the costs of development or implementation. Our KIs, including representatives from organizations that develop or promote AS-ME packages, did not address issues of cost or other resources.

Reporting of external grant funding is the one important exception to the paucity of information on resource use and cost. Nine of 14 packages report funding support from CDC, while one package was developed and funded by NHLBI. Three packages that received CDC funding also received funding from other Federal agencies, State health departments, and/or foundations. The packages do not disclose the amount of support received or how those resources were used.

Training

As nearly all packages we reviewed were designed to include in-person teaching, we examined how facilitators might be recruited, selected, trained, and evaluated.

For three packages disseminated by the ALA, the organization provides online training courses for nurses, teachers, and others who intend to administer their packages. Trainees are self-selected and complete training at their own pace. When training is complete, instruction manuals are available to guide their work. We could not determine if ALA evaluates or reviews the performance of asthma educators in the field, or if any mechanism for communicating updated materials or providing periodic retraining exists.

AAFA also provides training in asthma education, with programs that are open broadly to interested participants and not linked directly to specific AS-ME packages. However, AAFA packages include extensive training manuals, and advise program planners to enlist support from teachers, school nurses, respiratory therapists, community health workers, or others who are or could become proficient in facilitating asthma education.

Aside from ALA and AAFA, we were unable to gain substantial insight into educator training. NHLBI’s A Breath of Life is designed to prepare promotoras who then educate families in the community. The package offers extensive information on the curriculum provided to the promotoras, but we could not identify who actually administers their training. Similarly, the other packages refer generally to asthma educators, nurse educators, or peers as responsible for administering the respective packages, but additional details were not available and we did not identify any instructor manuals for those packages.

AAE offers numerous online training courses for professionals involved with asthma education. Some courses address broad themes in asthma care while others focus on specific interventions, skills, or patient populations. Most courses offer continuing medical education credits and involve a fee, although some resources are available free to AAE members. These programs are not tailored to specific AS-ME packages, but they are likely to provide knowledge and skills that could prepare asthma educators to implement AS-ME interventions.

Our KIs suggested that many types of health professionals, including (but not limited to) nurses, respiratory therapists, and community health workers, can facilitate AS-ME with appropriate training. However, they cautioned that educators are most effective when trained in the specific skills and tools included in a given package (such as a particular technique for inhaler use or a patient self-assessment instrument) and that skills and tools may vary by package. They also acknowledged that little funding is available for AS-ME training.

Adaptability

One of the most important aspects of AS-ME implementation is the frequent need to adapt a program to a local setting, specific population, or even an individual patient. AS-ME packages often include a broad and complex set of elements, including lesson plans, assessment instruments, patient and parent handouts, and supplemental audiovisual material. When a clinician, asthma educator, or school nurse implements a package, they may consider whether every facet of the curriculum or each supporting tool useful for their target audience. Since patients, settings, and resources vary widely, it is common for local sites to modify a branded program to better suit the patients they serve.

Adaptation may be minor (such as omitting part of a lesson that is less relevant for a certain population or replacing a given handout with another from a different source) or a major departure in which substantive components of several different packages are combined with local resources to form a new set of materials. Many providers have developed homegrown packages that may build on or mirror valuable elements of existing packages, but include new elements or creative approaches to implementation. Our KIs emphasized that flexibility of AS-ME materials is vitally important to clinicians and asthma educators. Packages containing elements that can be used independently and do not require a fixed, step-by-step approach to complete, offer greater opportunities for users to adapt them as needed.

Our review of the published literature, described below in response to GQ 3, identified several studies that examined modified versions of popular branded packages. Unfortunately, it was difficult to determine—from our analysis of existing packages, our review of the literature, or our KI discussions—how frequently AS-ME packages are modified in practice, or whether similarities or patterns in how packages are adapted by different users exist.

Additional Barriers to Implementation

In addition to emphasizing the importance of adaptability, our KIs identified several other potential challenges to successful AS-ME implementation. First, patient beliefs and values sometimes conflict with recommended practices. For example, some patients have misconceptions about asthma medications, or prefer alternative treatments that are not evidence based. Clinicians and educators must be able to recognize these concerns, and need strategies and tools that foster productive conversations with patients. A second challenge stems from the need for patients to navigate across many different settings on a daily basis, from home to work, from school to playground. Optimal self-management requires awareness of how different places or activities can affect asthma, and how to adapt. Education should address these challenges directly and offer clear strategies that can be remembered and internalized. Finally, patients with asthma face a major challenge that is all too common across healthcare: disjointed coordination and communication among providers, patients, families, teachers, coaches, and other caregivers. AS-ME packages should strive to include curriculum and strategies that facilitate communication and coordination among the many professional and personal stakeholders that are crucial to patients with asthma.

Table 7. Asthma self-management education packages: sponsorship, development, funding, and training.

Table 7

Asthma self-management education packages: sponsorship, development, funding, and training.

Overview of Existing AS-ME Packages

Figure 2 summarizes the main components of AS-ME implementation identified in the packages we reviewed, and demonstrates the steps needed to implement AS-ME, and the variation across packages on key factors such as educator training, audience and patient populations and settings, access to materials, and methods for delivering and evaluating learning.

Figure 2 presents a framework for understanding how major characteristics of asthma self-management education packages fit together within the context of the various steps needed to implement these processes. The figure consists of 7 columns or pillars, arrayed from left to right. These pillars represent different elements of educational packages, and key steps during implementation. Moving from left to right, the pillars address the following: educator training; patient population; target audience; educational setting; access to materials; delivery of education, and evaluation of learning. Inside each pillar, we show the distribution of packages sorted by major characteristics of each category. For example, in the pillar for asthma population, we show that 8 packages focus on children or adolescents, and 6 focus on adults. This pillar also shows that one package is tailored to women with asthma, and one package is tailored for Latino patients.

Figure 2

Map of AS-ME characteristics and implementation.

Effectiveness of AS-ME Packages (GQ 3)

To evaluate the effectiveness of AS-ME packages, we conducted structured literature searches for published studies as described in the Methods chapter. Our searches identified 7 systematic reviews, 16 RCTs, 16 observational studies, and 1 descriptive study of AS-ME packages published since 2007. All of the systematic reviews included RCTs, and five of the seven incorporated other study designs as well. Figure 3 summarizes the study designs included in the evidence base. Evidence tables summarizing each systematic review and primary study are in Appendix D.

Figure 3 is a pie chart that summarizes the distribution of published studies by study design. The slice in the top right quadrant indicates that 7 systematic reviews were included in our analysis. Moving clockwise, the next slice shows that 16 randomized controlled trials were included. Continuing around the pie, the next slice indicates that 11 studies used a pre-post design. The next slice shows that there were 4 cohort studies. The next slice indicates that one cross-sectional study was included. Finally, the last slice indicates that one descriptive study was included.

Figure 3

Study designs of included articles.

Specific AS-ME Packages

In GQs 1 and 2 we evaluated 14 AS-ME packages. Four of those packages were examined in eight primary studies identified in our searches: Asthma 101, Asthma Basics for Children, Kickin’ Asthma, and Open Airways for Schools. We identified no studies assessing the other nine packages.

In addition to these 8 studies, we identified 10 primary studies that examined 9 other packages with unique names or brands. We also included 15 primary studies of homegrown AS-ME packages that were developed for use in a local community or clinical setting, but not sponsored or disseminated by a national organization or branded in some way. Table 8 lists the packages included in the primary studies and Table 9 highlights key findings for each package.

Table 8. Asthma Self-Management Education Packages in Primary Studies.

Table 8

Asthma Self-Management Education Packages in Primary Studies.

Setting

Nearly half the primary studies (17 of 33) examined packages implemented in schools, while 6 studies18,27,36,38,39,41 took place in hospitals, and 628,30,31,34,35,37 in community settings. Only 3 studies22,29,33 evaluated AS-ME initiatives in a patient’s home, and the remaining study9 used Asthma 101 as a training module for nursing students.

Similarly, the systematic reviews consisted mainly of school-based primary studies. Three reviews4244 focused exclusively on school-based interventions, while one45 examined AS-ME conducted by school nurses or community-based nurses. Another review8 evaluated peer-led programs in schools or camps, and one46 assessed programs implemented in school, community, and healthcare settings. Finally, one review7 examined interventions designed to train healthcare professionals to provide AS-ME. Figure 4 summarizes study setting according to study design.

This evidence base indicates strong interest in school settings and a paucity of studies of home-based interventions. Notably, this diverges from the packages we summarized in GQs 1 and 2, where home-based interventions were more common than any other setting.

Figure 4 is a bar graph that shows the number of published studies by implementation setting and study design. Five bars are arrayed from left to right, each representing a different setting. The bar farthest to the left indicates that 21 studies were conducted in school settings, including 5 systematic reviews, 11 randomized controlled trials, and 5 observational studies. Moving to the right, the next bar shows that 10 studies took place in community settings, including 3 systematic reviews, 3 randomized controlled trials, and 4 observational studies. The third bar shows that 6 studies occurred in hospitals or emergency departments, including 1 randomized controlled trial, 4 observational studies, and 1 descriptive study. Next, a shorter bar indicates that only 3 studies were published about home-based asthma self-management education; one was a randomized controlled trial and 2 were observational studies. Finally, the bar farthest to the right shows that two studies – 1 systematic review and 1 observational study – focused on training for asthma educators, rather than education designed for patients with asthma.

Figure 4

Setting of published studies.

Population

Given the predominance of school-based interventions, it is not surprising that 241017,1926,3234,36,3841 of 33 primary studies evaluated children or adolescents, while only 818,2731,35,37 focused on adults with asthma. Additionally, all 7 systematic reviews focused on children or adolescents. Figure 5 summarizes the age distribution of included studies by study design. All primary studies we evaluated were conducted in the United States, per our inclusion criteria. Every systematic review included both U.S.- and non-U.S.-based studies.

Most primary studies focused on communities with large minority populations and indicators of low socioeconomic status. Twenty-one studies (12 RCTs1315,17,19,20,2327,32 and 9 observational studies10,18,21,22,33,34,36,38,39) were conducted in populations comprising more than 50 percent Black (including African-American, Caribbean, and/or African), and/or Hispanic or mixed race/ethnicity patients. Five other studies did not describe patient race or ethnicity.11,16,28,35,41 Seven RCTs1315,17,20,23,24 and seven observational studies16,21,22,33,34,38,39 primarily enrolled patients likely living close to the poverty line, as indicated by income, insurance coverage, or eligibility for public programs. However, almost none of the remaining studies reported data addressing socioeconomic status.

Asthma severity was reported in about half of primary studies.1315,17,19,2427,29,30,33,34,39,40 Patients in those studies were more likely to have mild or moderate asthma, while severe asthma was generally less common. Few studies reported on other health measures such as patient comorbidity or body mass index.

Figure 5 is a bar graph that shows the number of published studies by patient population and study design. Five bars are arrayed from left to right, each representing a different age cohort. The bar farthest to the left indicates that 8 studies were conducted in adults, including 5 randomized controlled trials and 3 observational studies. Moving to the right, the next bar shows that 11 studies included adolescent patients, including 1 systematic review, 5 randomized controlled trials, and 5 observational studies. The third bar shows that 14 studies were conducted in children and/or adolescents, including 5 systematic reviews, 6 randomized controlled trials, and 3 observational studies. Next, a shorter bar indicates that only 5 studies were conducted in children, including 4 observational studies and 1 descriptive study. Finally, the bar farthest to the right shows that 2 studies – 1 systematic review and 1 observational study – focused on training for asthma educators.

Figure 5

Population of published studies.

Outcomes

Important asthma outcomes include asthma control, symptom frequency, emergency department (ED) visits, hospitalizations, and medication use. We found that studies examined a variety of these key outcomes as described below. Figure 6 summarizes the outcomes reported across studies. Table 9 shows how outcomes were distributed across studies of specific AS-ME packages.

Two systematic reviews performed meta-analysis,8,42 while the remainder synthesized studies narratively. Most reviews did not synthesize the key characteristics of interventions used in the individual studies. One review,46 however, identified eight factors associated with successful approaches, including structured curricula, reinforcement, active participation, collaboration, autonomy, feedback, multiple exposure, and problem solving.

We did not assess study quality for individual primary studies per our protocol and the standard procedures for Technical Briefs, but we note that six of seven systematic reviews7,8,42,4446 assessed study quality using standardized evaluation tools and found that most primary studies were at high or unclear risk of bias.

Clinical Measures

Eight primary studies13,14,27,31,3335,40 measured asthma control, usually through standardized instruments such as the Asthma Control Test or Asthma Control Questionnaire. Six 13,27,3335,40 found that AS-ME interventions significantly improved asthma control, while two14,31 found no difference.

Symptom frequency was reported in 11 primary studies and 2 systematic reviews, using data collected through diaries, logs, phone calls, and in-person visits; seven10,11,15,22,24,30,33 of these studies found that symptoms were reduced, while four primary studies17,19,23,31 and both systematic reviews8,44 found no difference.

Ten primary studies10,11,17,22,24,29,33,34,38,39 examined the effect of AS-ME on ED visits and nine primary studies10,17,2224,29,33,34,39 measured the effect on hospitalizations, while two systematic reviews42,43 evaluated both outcomes. Results were mixed, with a little more than half of primary studies and one review reporting significant reductions in use, while the remaining studies found no difference—and one study38 found that ED visits increased after implementation. Three primary studies25,28,31 collected data on medication use and all of them found that AS-ME did not significantly affect patients’ use of maintenance or rescue medications.

Patient-Centered Measures

Several patient-centered outcomes often associated with asthma were also measured. Knowledge and understanding of asthma by patients and/or parents was evaluated in 12 primary studies9,16,1821,26,32,3537,41 and 2 systematic reviews,44,45 using a variety of pre and post-test tools to identify learning. All of these studies found that knowledge improved, which is encouraging but may also indicate publication bias.

Asthma-related quality of life (QoL) was assessed in 12 primary studies and 2 systematic reviews8,44 as well, usually through standardized surveys such as the Asthma Quality of Life Questionnaire or the Pediatric Asthma Quality of Life Questionnaire. Six13,17,28,33,35,37 of 12 primary studies found QoL improved, while six primary studies14,15,24,27,29,30 and both reviews found no difference.

Six primary studies and three systematic reviews measured school absences, with five primary studies10,11,17,22,34 and one review43 reporting fewer absences associated with AS-ME and one primary study24 finding no difference. The other two reviews42,44 reported mixed results.

Finally, two primary studies23,28 found that patients who participated in AS-ME were more likely to avoid exposure to asthma triggers, while one study12 found no effect on patient behavior regarding trigger avoidance.

AS-ME Packages Evaluated In GQs 1 and 2

Four studies (three RCTs1315 and one cohort study16) evaluated Open Airways for Schools. Three studies identified improvement in asthma control,13 symptom frequency,15 QoL,13 or asthma knowledge,16 while one study14 reported no difference in asthma control or QoL. Kickin’ Asthma was assessed in one pre-post11 and one cohort12 study. One study11 found the intervention was associated with significantly reduced risk for ED visits, asthma symptoms, and school absences; the other study12 reported that patients who completed the program used peak flow meters and spacers more frequently but there was no change in use of rescue medications or avoidance of asthma triggers. A pre-post study10 found that Asthma Basics for Children was associated with fewer ED visits, hospitalizations, symptoms, and daycare absences, and increased parent knowledge. A pre-post study9 using Asthma 101 to train nursing students found that the package was effective at improving students’ knowledge.

Figure 6 is a bar graph that summarizes the number of published studies that reported important asthma outcomes. Nine bars are arrayed from left to right, each representing a different patient outcome. The bar farthest to the left indicates that 8 studies measured asthma control in study participants. The next bar shows that 11 studies reported on the prevalence of asthma symptoms. The third bar from the left shows that 10 studies collected data on emergency department visits by asthma patients, and the next bar indicates that 9 studies reported data about hospitalizations. The bar in the middle reveals that only 3 studies provided data about medication use. Moving farther toward the right side, the next bar shows that 12 studies assessed asthma knowledge. The bar after that one indicates that 12 studies examined asthma-related quality of life. The next bar shows that 6 studies described school absences as an important outcome. Finally, the bar on the right side indicates that 3 studies measured how patients changed their behaviors in order to avoid asthma triggers.

Figure 6

Outcomes reported by included studies.

Table 9. Summary of primary study outcomes by AS-ME package.

Table 9

Summary of primary study outcomes by AS-ME package.

Evidence Gaps and Challenges (Guiding Question 4)

Table 10 highlights areas where current and future AS-ME packages could better serve patient needs, and identifies knowledge gaps that could be addressed by further research.

Table 10. Future needs in AS-ME development, implementation, and research.

Table 10

Future needs in AS-ME development, implementation, and research.

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