Adherence to pediatric asthma treatment in economically disadvantaged African-American children and adolescents: an application of growth curve analysis

Objective detection of wheeze at home by parents through a digital device: usage patterns and relationship with SABA administration

INTRODUCTION

Wheezing is an important indicator of exacerbated respiratory symptoms in early childhood and must be monitored to regulate pharmacological therapy. However, parents' subjective perception of wheezing in their children is not always precise. We investigated the objective identification of children's wheezing by parents using a digital wheeze detector (WheezeScanTM, OMRON Healthcare Co. Ltd), its longitudinal usage patterns, and its relationship with SABA administration.

METHODS

We conducted a secondary nested analysis of data from the intervention arm of a multi-center randomized controlled trial completed in 2021-2022 in Berlin (Germany), London (United Kingdom), and Istanbul (Turkey). Children aged 4 to 84 months with doctor's diagnosed wheezing (GINA step 1 or 2) were included. Using an electronic diary (Wheeze-MonitorTM, TPS), parents monitored and recorded for 120 days at home the presence or absence of their child's wheezing, detected both, with WheezeScanTM ("objective" wheezing), and subjective ("perceived" wheezing). Parents also recorded the child's symptoms, medication intake, and family quality of life. Questionnaires regarding symptom control, quality of life, and parental self-efficacy were answered at baseline and after 90 and 120 days.

RESULTS

Eighty-one/87 families completed the intervention arm of the study. WheezeScanTM was on average used 0.7 (SD 0.6) times a day, with each patient reporting a positive, negative, or "error" outcome on average in 57%, 39%, and 5% of measurements, respectively. The use of WheezeScanTM declined slightly during the first 90 days of monitoring and steeply thereafter. Repeated usage of WheezeScanTM in the same day was more frequent after a "wheeze" (HR 1.5, 95% CI 1.37-1.65, p < 0.001) and an "error" (HR 2.01, 95% CI 1.70-2.38, p < 0.001) result, compared to a "no wheeze" outcome. The average per-patient daily agreement between "objective" and "perceived" wheezing/non-wheezing was 75% at the start of the monitoring period and only weakly persisted as time passed (Spearman's rho=0.09). The frequency of short-acting beta-2-agonists (SABA) administration was lower in days with closely interspaced consecutive device uses during which the patient's status was perceived as "never wheeze" (32/455, 7%) than in those perceived as "persistent wheeze" (53/119, 44%; OR 36.6, 95% CI [14.3, 94.1]).

CONCLUSION

Daily use of a digital WheezeScanTM at home allows parents to detect their child's unperceived wheezing and discloses to caregivers the longitudinal patterns of a child's wheezing disorder. Digital monitoring of wheezing also highlights poor adherence to guidelines in SABA administration for wheezing children, with under-treatment being much more frequent than over-treatment. This pioneering study opens new perspectives for further investigation of digital wheeze detectors in the early diagnosis and proper self-management of wheezing disorders in childhood.

Depressive Symptom Trajectories Across Adolescence and Adulthood Among Individuals With Asthma

OBJECTIVE

Individuals with asthma experience increased depressive symptoms, which is associated with deleterious health outcomes. No studies have examined depressive symptom trajectories among individuals with asthma despite increased risk. This study expanded prior literature by identifying the following: (1) depressive symptoms trajectories for individuals with and without asthma and (2) predictors of baseline levels and changes in symptoms across time for individuals with asthma.

METHODS

Adolescents with (N = 965) and without (N = 7,392) asthma self-reported on depressive symptoms (CESD-9) across development. Covariates included: demographics and persistence of asthma. Latent growth curve modeling (LGCM) was used to identify depressive symptom trajectories and their predictors.

RESULTS

A multigroup LCGM identified no significant differences between depressive symptom trajectories of individuals with and without asthma. Depressive symptoms followed a quadratic shape across time for individuals with asthma (Mintercept = 5.73, p < .00; Mlinear = -0.38,p < .001; Mquad = 0.03, p < .001), with a linear deceleration in depressive symptoms during adolescence and an acceleration of symptoms into adulthood. Next predictors of depressive trajectories among individuals with asthma were examined. Female sex (B = 0.58, p < .001), lower parent education (B = -0.57, p < .001), older age (B = 0.19, p < .001), and identifying as Black (B = 0.31, p = .04) were associated with greater baseline depressive symptoms. Older individuals exhibited faster linear symptom decelerations (B = -0.56, p < .001) and faster symptom accelerations (B = 0.73, p < .001). American Indian (AIAN) individuals exhibited faster linear symptom decelerations (B = -1.98, p = .005) and faster quadratic accelerations (B = 3.33, p = .007).

DISCUSSION

Our results suggest that the depressive symptom trajectories of individuals with asthma are curvilinear and similar to individuals without asthma. When examining predictors of depressive symptom trajectories for those with asthma, socioeconomic disadvantage and racial marginalization were associated with greater baseline depressive symptoms. Although AIAN youth demonstrated more favorable trajectories in adolescence, they also exhibited worse trajectories across young adulthood and adulthood. Findings suggest the need to better understand the impact of multilevel risk and protective factors on depressive symptoms trajectories for individuals with asthma, especially marginalized populations.

Impact of Unmet Social Needs, Scarcity, and Future Discounting on Adherence to Treatment in Children With Asthma: Protocol for a Prospective Cohort Study

BACKGROUND

Asthma is one of the most prevalent chronic diseases of childhood and disproportionately affects children with lower socioeconomic status. Controller medications such as inhaled corticosteroids significantly reduce asthma exacerbations and improve symptoms. However, a large proportion of children still have poor asthma control, in part owing to suboptimal adherence. Financial barriers contribute to hindering adherence, as do behavioral factors related to low income. For example, unmet social needs for food, lodging, and childcare may create stress and worry in parents, negatively influencing medication adherence. These needs are also cognitively taxing and force families to focus on immediate needs, leading to scarcity and heightening future discounting; thus, there is the tendency to attribute greater value to the present than to the future in making decisions.

OBJECTIVE

In this project, we will investigate the relationship between unmet social needs, scarcity, and future discounting as well as their predictive power over time on medication adherence in children with asthma.

METHODS

This 12-month prospective observational cohort study will recruit 200 families of children aged 2 to 17 years at the Asthma Clinic of the Centre Hospitalier Universitaire Sainte-Justine, a tertiary care pediatric hospital in Montreal, Canada. The primary outcome will be adherence to controller medication, measured using the proportion of prescribed days covered during follow-up. Exploratory outcomes will include health care use. The main independent variables will be unmet social needs, scarcity, and future discounting, measured using validated instruments. These variables will be measured at recruitment as well as at 6- and 12-month follow-ups. Covariates will include sociodemographics, disease and treatment characteristics, and parental stress. Primary analysis will compare adherence to controller medication, measured using the proportion of prescribed days covered, between families with versus those without unmet social needs during the study period using multivariate linear regression.

RESULTS

The research activities of this study began in December 2021. Participant enrollment and data collection began in August 2022 and are expected to continue until September 2024.

CONCLUSIONS

This project will allow the documentation of the impact of unmet social needs, scarcity, and future discounting on adherence in children with asthma using robust metrics of adherence and validated measures of scarcity and future discounting. If the relationship between unmet social needs, behavioral factors, and adherence is supported by our findings, this will suggest the potential for novel targets for integrated social care interventions to improve adherence to controller medication and reduce risk across the life course for vulnerable children with asthma.

TRIAL REGISTRATION

ClinicalTrials.gov NCT05278000; https://clinicaltrials.gov/ct2/show/NCT05278000.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

PRR1-10.2196/37318.

Caregiver's sense of coherence and adherence to paediatric asthma treatment

Asthma is a chronic respiratory condition that needs to be well controlled to avoid compromising patients' quality of life. In the paediatric population, the role of caregivers is essential in this process. Moreover, adequate asthma control is integral to a child's emotional well-being and to improving the child's ability to participate fully in family and social life. One of the main reasons for uncontrolled asthma is low adherence to treatment, by patients and caregivers. Identifying factors mediating the involvement and participation of caregivers through evaluations of caregivers' sense of coherence can help in the adoption of strategies aimed at effectively directing adherence behaviour through educational and motivational interventions. The goal of this review article is to provide an overview of the sense of coherence as a construct of Antonovsky's salutogenic theory, and to identify its role as a key piece in the successful management of asthma in children.

Psychometric evaluation of the medication adherence report scale in caregivers of low-income, urban, African American children with poorly controlled asthma

OBJECTIVE

Accurately assessing asthma medication usage among low-income, urban, African American children is essential to reduce asthma health disparities. The purpose of this study was to examine the factor structure of the five-item Medication Adherence Report Scale (MARS), in a sample of caregivers of low-income, urban, African American youth with poorly controlled asthma.

METHOD

Using baseline data from a randomized clinical trial evaluating the efficacy of an environmental control educational intervention, confirmatory factor analysis (CFA) was conducted to ascertain the MARS factor structure. Construct validity was assessed using a regression model inclusive of caregiver-reported medication adherence, Asthma Medication Ratio (AMR), asthma control, and caregiver perception of asthma control as predictors of the MARS.

RESULTS

Caregivers were female (97%) and 27.4% had an annual income under $10,000. The mean MARS score was 21.88 ± 3.33 out of a possible range of 5-25, representing high adherence. Confirmatory factor analysis indicated that a five-item one-factor model marginally fit the data based on the fit indices: χ² (5) = 31.71, p < 0.001; RMSEA ≤ 0.161; CFI = 0.986; TLI = 0.971; and WRMR = 0.979. The MARS was associated with another caregiver-reported measure of medication adherence but not associated with AMR, asthma control, or caregiver perception of asthma control.

CONCLUSIONS

The MARS demonstrated marginal fit in CFA and may not be clinically indicated in light of the lack of associations with objective measures of asthma medication adherence and asthma control.

Ethical considerations in pediatric chronic illness: The relationship between psychological factors, treatment adherence, and health outcomes

Children, adolescents, and young adults with chronic illnesses are often faced with complicated and burdensome treatments that not only require a great deal of time and energy to manage, but will also likely impact relationships with parents, siblings, and peers. Adolescents and young adults with chronic illness are often impacted by several unique and challenging factors that can ultimately impact health behaviors and treatment outcomes. Working with a psychologist can help to ameliorate these unique challenges, which will positively impact health behaviors and health outcomes. The present paper provides an overview of psychological interventions that were designed to target the unique challenges that are often associated with maladaptive health behaviors and ultimately poor health outcomes. As demonstrated in this commentary, when working with adolescents and young adults who have unique developmental challenges, it is important to deliver multi-faceted intervention approaches that utilize a number of different strategies and frameworks. These eclectic intervention approaches provide a unique opportunity to improve health behaviors during critical developmental periods, including the transition from childhood to adolescence to young adulthood.

Daily adherence variability and psychosocial differences in adolescents with asthma: a pilot study

Adolescents with asthma endorse psychosocial difficulties as barriers to inhaled corticosteroid adherence. This study examined patterns of variability in adherence and within-person associations of psychosocial variables with adherence across days. Participants included twenty-five adolescents (M_age = 14.7, SD = 1.68; 48% male) with persistent asthma. We measured adherence via electronic monitoring. Adolescents completed daily surveys measuring asthma symptoms, stress, mood, and affect. We examined within-person differences in the effect of symptoms and psychosocial variables on adherence. Adherence decreased over time. The addition of a random slope improved model fit (- 2ΔLL(1) = 9.36, p < .01). Greater asthma symptoms were significantly associated with higher adherence at the within-person level and with lower adherence between persons. We observed evidence of individual differences in the associations of stress and affect with adherence. Within-person, day-level fluctuations in adherence occur. Symptoms and psychosocial variables may influence adherence. Individually tailored interventions may effectively address nonadherence.

Parent Experiences With Electronic Medication Monitoring in Pediatric Asthma Management: Qualitative Study

BACKGROUND

Electronic medication monitoring (EMM) is a digital tool that can be used for tracking daily medication use. Previous studies of EMM in asthma management have been conducted in adults or have examined pediatric interventions that use EMM for less than 1 year. To understand how to improve EMM-enhanced interventions, it is necessary to explore the experiences of parents of children with asthma, recruited from outpatient practices, who completed a 12-month intervention trial.

OBJECTIVE

The objective of our study was to use qualitative inquiry to answer the following questions: (1) how did using an EMM-enhanced intervention change parents'/caregivers' experiences of managing their child's asthma, and (2) what do parents recommend for improving the intervention in the future?

METHODS

Parents were recruited from the intervention arm of a multicomponent health intervention enhanced by Bluetooth-enabled sensors placed on inhaler medications. Semistructured interviews were conducted with 20 parents of children aged 4-12 years with asthma. Interviews were audio-recorded, transcribed, and inductively analyzed using a constant comparative approach.

RESULTS

Interview participants reflected an even mix of publicly and privately insured children and a diverse racial-ethnic demographic. Parents discussed 6 key themes related to their experience with the EMM-enhanced intervention for the management of their child's asthma: (1) compatibility with the family's lifestyle, (2) impact on asthma management, (3) impact on the child's health, (4) emotional impact of the intervention, (5) child's engagement in asthma management with the intervention, and (6) recommendations for future intervention design. Overall, parents reported that the 12-month EMM intervention was compatible with their daily lives, positively influenced their preventive and acute asthma management, and promoted their child's engagement in their own asthma management. While parents found the intervention acceptable and generally favorable, some parents identified compatibility issues for families with multiple caregivers and frustration when the technology malfunctioned.

CONCLUSIONS

Parents generally viewed the intervention as a positive influence on the management of their child's asthma. However, our study also highlighted technology challenges related to having multiple caregivers, which will need to be addressed in future iterations for families. Attention must be paid to the needs of parents from low socioeconomic households, who may have more limited access to reliable internet or depend on other relatives for childcare. Understanding these family factors will help refine how a digital tool can be adopted into daily disease management of pediatric asthma.

Patterns of Asthma Medication Use across the Transition to High School

OBJECTIVE

Adherence to asthma controller medications is suboptimal among adolescents. We evaluated predictors of adherence and longitudinal patterns of medication use between 8th and 10th grade among a sample of youth of diverse race/ethnicity.

METHODS

Eighth graders with asthma on controller medications (N = 62; 40.0% non-Latino white; 23.7% Black; 37.3% Latino; 37.3% female) completed measures of medication beliefs, responsibility for asthma management, and family cohesion. Objective methods tracked medication use longitudinally.

RESULTS

Adherence declined during the high school transition, from 48.0% in eighth grade to 34.1% in tenth grade (F = 5.35, p < .01). Males had lower adherence (b = -10.11, SE = 5.37, p = .02, f2 = 0.11), as did Latino youth (b = -12.21, SE = 8.23, p = .03, f2 = 0.12). Family cohesion was associated with higher adherence (b = 4.38, SE = 1.98, p = .04, f2 = 0.06). Latent class models (LCMs) suggested a three-class model of longitudinal adherence patterns. This included low, declining adherence (Class 1 = 29%; higher proportion male, p = .02), high, sustained adherence (Class 2 = 26%, high family cohesion, p = .05, higher proportion female, p = .02), and low, sustained adherence (Class 3 = 45%; higher proportion Latino, p = .05, higher proportion male, p = .02).

CONCLUSIONS

Asthma medication adherence declined between 8th and 10th grade. LCMs indicated some youth have stable patterns of adherence (high or low), whereas others demonstrate declines. Gender differences were observed, and family cohesion was associated with higher, sustained adherence. Interventions building on family resources and targeting the barriers adolescents face are necessary to improve asthma management during this vulnerable period.

Sensor-Based Electronic Monitoring for Asthma: A Randomized Controlled Trial

BACKGROUND

Although sensor-based monitoring of daily inhaled corticosteroids (ICSs) and short-acting β-agonist medications may improve asthma outcomes, the effectiveness of these interventions in diverse pediatric populations remains unclear.

METHODS

Caregiver and child dyads were randomly assigned to receive inhaler sensors that allowed for caregiver and clinician electronic monitoring of medications. End points included Asthma Control Test scores (≥19 indicated asthma control) and asthma health care use. Caregiver quality of life (QoL) and child ICS adherence were also assessed. Multilevel models were used to estimate adjusted changes from baseline.

RESULTS

Dyads were assigned to the control (n = 127) or intervention (n = 125) arms. At the end line, the mean Asthma Control Test score increased from 19.1 (SE = 0.3) to 21.8 (SE = 0.4) among the intervention and from 19.4 (SE = 0.3) to 19.9 (SE = 0.4) among the control (Δ_{intervention-control} = 2.2; SE = 0.6; P < .01). Adjusted rates of emergency department visits and hospitalizations among the intervention were significantly greater (incidence rate ratio_{emergency department} = 2.2; SE = 0.5; P < .01; incidence rate ratio_hospital = 3.4; SE = 1.4; P < .01) at endline than the control. Caregiver QoL was greater among the intervention at the endline (Δ_{intervention-control} = 0.3; SE = 0.2; P = .1) than the control.

CONCLUSIONS

Findings suggest that sensor-based inhaler monitoring with clinical feedback may improve asthma control and caregiver QoL within diverse populations. Higher health care use was observed among the intervention participants relative to the control, indicating further refinement is warranted.

A systematic review of parenting interventions for child chronic health conditions

This systematic review summarizes the parenting intervention literature for parents of children with chronic health conditions and evaluates intervention effects on parenting (parenting skills and parenting efficacy) and child (behaviour, illness severity/control and quality of life) outcomes. Systematic searches using seven electronic databases (including CINHAL, MEDLINE and PsycINFO) were used to identify relevant papers published in English between 1997 and 2017, and reference lists were searched for additional relevant articles. Ten papers reporting on eight separate studies met inclusion criteria: three studies evaluated stand-alone parenting interventions, while the remaining five studies included parenting components in broader interventions that also targeted medically oriented aspects of illness management. Results suggest that parenting interventions may lead to improved parent self-efficacy, parenting behaviour, illness severity/control, child quality of life and child behaviour; however, intervention effects were mixed and confined to parent-report outcome measures. A paucity of studies using rigorous randomized controlled trial study designs limits the conclusions that can be drawn regarding intervention efficacy. Achieving adequate enrolment and retention of families in parenting intervention trials appears to be problematic within these clinical groups. Larger samples and more diverse clinical populations will support the reliability of future evaluations of parenting interventions in this context and improve generalizability of results.

Health provider perspectives of electronic medication monitoring in outpatient asthma care: a qualitative investigation using the consolidated framework for implementation research

OBJECTIVE

Little is known about the implementation challenges health providers might face with the use of digital health in outpatient asthma care. To qualitatively explore the experience of health providers with electronic medication monitoring (EMM) using an implementation science framework.

METHODS

Using the Consolidated Framework of Implementation Research (CFIR), we conducted interviews (n = 10) exploring health providers' experience with EMM with asthma patients from 5 primary care or specialty clinics. The EMM tracked albuterol and inhaled corticosteroid (ICS) use, and health providers called parents whenever ICS adherence waned, or albuterol use increased. Interviews were audio-recorded, transcribed, and deductively analyzed using directed content analysis.

RESULTS

Health providers reported the intervention's primary advantage, compared with current asthma care, was the ability to monitor medication use at-home. Most felt the intervention improved care delivery. Nurses and medical assistants described a process of phone calls and checking alerts, that had varying levels of administrative burden and complexity. Health providers felt that sustained implementation of the intervention model would require additional employees to handle the administrative and clinical workload. Half of the interviewed providers were unsure if patient needs were met by the intervention, while some cited technology syncing issues, others liked the enhanced interactions for asthma education.

CONCLUSION

Health providers reported positive experiences supporting parents and children with asthma using EMM but also highlighted intervention components that needed improvement or refinement to yield successful implementation in outpatient pediatric clinics. Recommendations for enhancing the intervention for a scaled-up implementation were discussed.

Adherence trajectories in oral therapy for chronic myeloid leukemia: Overview of a research protocol

Over a quarter of chemotherapy regimens now include oral agents. Individuals living with cancer are now responsible for administering this lifesaving therapy at home by taking every dose as prescribed. One type of oral chemotherapy, tyrosine kinase inhibitors (TKIs), is the current recommended treatment for chronic myeloid leukemia. This targeted therapy has markedly improved survival but comes with significant side effects and financial costs. In the study described in this protocol, the investigators seek to understand the dynamic nature of TKI adherence experienced by individuals diagnosed with CML. Using a mixed-method approach in this prospective observational study, funded by the National Cancer Institute, we seek to describe subjects' adherence trajectories over 1 year. We aim to characterize adherence trajectories in individuals taking TKIs using model-based cluster analysis. Next, we will determine how side effects and financial toxicity influence adherence trajectories. Then we will examine the influence of TKI adherence trajectories on disease outcomes. Additionally, we will explore the experience of patients taking TKIs by interviewing a subset of participants in different adherence trajectories. The projected sample includes 120 individuals taking TKIs who we will assess monthly for 12 months, measuring adherence with an objective measure (Medication Event Monitoring System). Identifying differential trajectories of adherence for TKIs is important for detecting subgroups at the highest risk of nonadherence and will support designing targeted interventions. Results from this study can potentially translate to other oral agents to improve care across different types of cancer.

Association between adherence and severe asthma exacerbation: A systematic review and meta-analysis

OBJECTIVE

To assess the association between adherence levels and severe asthma exacerbation.

DESIGN

A systematic search was performed from inception to November 2018 on the following databases: PubMed, CENTRAL, EMBASE, and ClinicalTrials.gov.

SETTING AND PARTICIPANTS

Randomized-controlled trials (RCTs) and cohort and case-control studies that investigated the impact of adherence to controller medications on severe asthma exacerbation were included in the analysis. Data extraction was undertaken by 2 reviewers, and all studies were assessed for their qualities using the Cochrane risk of bias tool for RCT and the Newcastle-Ottawa scale for cohort and case-control studies. Random-effects model meta-analyses were performed.

OUTCOME MEASURES

Severe asthma exacerbation.

RESULTS

From 8061 articles, 8 studies were included in quantitative synthesis. The meta-analyses revealed that the odds of exacerbation among the patients with 80% or more adherence were lowered by 47% (odds ratio 0.53 [95% CI 0.42-0.66], P < 0.001) compared with less than 80%. When compared with less than 20% adherence, a 33% reduction in the odds (0.67 [0.53-0.86], P = 0.001) was associated with the patients achieving 50% or more, whereas a decrease in exacerbation was not associated with 20% to 49% adherence (0.94 [0.85-1.04], P = 0.22). In addition, a 2.4-fold increase in the odds (2.4 [2.1-2.7], P < 0.001) was associated with discontinuation of therapy.

CONCLUSION

The highest reduction in the odds of exacerbation was associated with patients achieving 80% or more adherence, and the odds also reduced among those with 50% or more adherence, whereas a substantial increase in exacerbation was associated with discontinuation of therapy.

Psychological Considerations in Pediatric Chronic Illness: Case Examples

Despite significant gains in survival rates for pediatric patients and adolescents/young adults (AYA) with chronic illness, patients in this vulnerable age group are also at an increased risk for developing one or more adverse effects related to their disease, treatment, or maladaptive health behaviors. Maladaptive health behaviors ultimately increase the risk for developing adverse effects, including: increased rates of morbidity and mortality, impaired physical functioning, increased fatigue, obesity, increased psychological distress, and poor quality of life. With close attention including participation in preventive and therapeutic health promotion interventions, problematic health behaviors can be mitigated and ultimately prevented over time. It is well known that improved psychological functioning and adaptive coping can result in improved health status. The present paper provides four case examples illustrating various psychological interventions in pediatric chronic illness. As evidenced in the four case examples, pediatric psychologists provide comprehensive interventions for patients with acute and chronic medical conditions through the use of health promotion interventions, adherence and self-management promotion, cognitive behavioral therapy, behavioral therapy, medical coping, parent training, and motivational interviewing. Our case series demonstrates that for the most impactful behavior change to occur, a combination of interventions is often the most effective.

Fostering Effective Asthma Self-Management Transfer in High-Risk Children: Gaps and Opportunities for Family Engagement

INTRODUCTION

The process of self-management knowledge, behavior, and skill development in children with asthma from families with low income is understudied.

METHOD

Fifteen mothers of children with uncontrolled asthma participated in semistructured interviews exploring the transfer of asthma self-management responsibilities from parent to child. Team members performed thematic analysis of written transcripts.

RESULTS

All participants were all the biological mothers and were impoverished, with most (73%) reporting an annual family income of less than $30,000. Their children ranged from 5 to 15 years old, were African American (100%), and had uncontrolled asthma based on national guidelines. Themes showed that child asthma self-management is difficult to achieve, that the transfer of asthma responsibility from mother to child is variable, and that mothers overestimate their child's developmental capacities for independent asthma self-management and have poor understanding of what well-controlled asthma means.

DISCUSSION

Ongoing assessment and tailored guidance from health care providers are critical to support the pivotal role of mothers in their child's self-management development process.

Addressing primary nonadherence: A collaboration between a community pharmacy and a large pediatric clinic

OBJECTIVES

To decrease nonadherence rates through the design and implementation of a collaborative prescription management program involving a community pharmacy and a large pediatric primary care center.

PRACTICE INNOVATION

Kroger and Cincinnati Children's Pediatric Primary Care Center collaborated to identify and address patients' barriers to filling new prescriptions. After filling new medications for clinic patients, pharmacists telephoned patients to inform them that their prescription was ready and to reinforce the importance of initiating the therapy. Pharmacists followed up with families to address barriers when prescriptions remained at the pharmacy after 48 hours. Pharmacists communicated with prescribers if prescriptions were not filled, allowing the clinic staff to follow up.

EVALUATION

The primary outcome of this prospective pilot study with a comparison group was primary nonadherence (PNA), defined as the proportion of patients who did not pick up prescriptions or a reasonable alternative within 30 days after the pharmacy received the prescription. Secondary outcomes were the impact on secondary nonadherence and identification of adherence barriers.

RESULTS

Fifty-nine patients were enrolled from November 2016 to April 2017. Characteristics between the intervention group and a standard-care group were similar. The majority of prescribed medications were for acute conditions, the average patient age was 4.9 years, and 86% of patients were covered by Medicaid. Intervention patients had significantly less PNA compared with the standard-care group (14.0% vs. 53.3%, respectively; P < 0.001). Intervention patients had significantly greater secondary adherence rates compared with standard-care patients (38.8% vs. 7%; P < 0.001). Common barriers likely resulting in PNA included lack of time, lack of urgency, transportation challenges, and cost.

CONCLUSION

Increased communication between the primary care provider and the community pharmacy, coupled with targeted patient-specific interventions before the initial fill of medications, resulted in significant reductions in PNA.

Medication adherence in pediatric asthma: A systematic review of the literature

OBJECTIVE

To provide a systematic review of correlates of adherence to inhaled corticosteroids (ICS) in pediatric asthma across the individual, family, community, and healthcare system domains.

METHODS

Articles assessing medication adherence in pediatric asthma published from 1997 to 2016 were identified using PsychINFO, Medline, and CINAHL. Search terms included asthma, compliance, self-management, adherence, child, and youth. Search results were limited to articles: 1) published in the US; 2) using a pediatric population (0-25 years old); and 3) presenting original data related to ICS adherence. Correlates of adherence were categorized according to the domains of the Pediatric Self-Management Model. Each article was evaluated for study quality.

RESULTS

Seventy-nine articles were included in the review. Family-level correlates were most commonly reported (N = 51) and included socioeconomic status, race/ethnicity, health behaviors, and asthma knowledge. Individual-level correlates were second-most common (N = 37), with age being the most frequently identified negative correlate of adherence. Health care system correlates (N = 24) included enhanced asthma care and patient-provider communication. Few studies (N = 10) examined community correlates of adherence. Overall study quality was moderate, with few quantitative articles (26.38%) and qualitative articles (21.4%) referencing a theoretical basis for their studies.

CONCLUSIONS

All Pediatric Self-Management Model domains were correlated with youth adherence, which suggests medication adherence is influenced across multiple systems; however, most studies assessed adherence correlates within a single domain. Future research is needed that cuts across multiple domains to advance understanding of determinants of adherence.

A Randomized Trial of User-Controlled Text Messaging to Improve Asthma Outcomes: A Pilot Study

We enrolled 64 patients age 12 to 22 years with a diagnosis of poorly controlled persistent asthma in a 6-month longitudinal crossover study. During the 3 intervention months, participants created personalized text messages to be sent to their phones. Adherence was objectively monitored in 22 of the participants. The adolescent participants gave high ratings on the acceptability of the text messaging system. Asthma control improved from baseline to month 1 regardless of whether teens were in the texting or control group. While participants were in the texting group, their quality of life improved and worry about their asthma decreased. Receiving the text intervention resulted in an increase in adherence of 2.75% each month relative to no intervention, but the improvements were not sustained. There was modest improvement in asthma control and quality of life outcomes, as well as improved adherence during the texting intervention.

Interventions to improve adherence to inhaled steroids for asthma

BACKGROUND

Despite its proven efficacy in improving symptoms and reducing exacerbations, many patients with asthma are not fully adherent to their steroid inhaler. Suboptimal adherence leads to poorer clinical outcomes and increased health service utilisation, and has been identified as a contributing factor to a third of asthma deaths in the UK. Reasons for non-adherence vary, and a variety of interventions have been proposed to help people improve treatment adherence.

OBJECTIVES

To assess the efficacy and safety of interventions intended to improve adherence to inhaled corticosteroids among people with asthma.

SEARCH METHODS

We identified trials from the Cochrane Airways Trials Register, which contains studies identified through multiple electronic searches and handsearches of other sources. We also searched trial registries and reference lists of primary studies. We conducted the most recent searches on 18 November 2016.

SELECTION CRITERIA

We included parallel and cluster randomised controlled trials of any duration conducted in any setting. We included studies reported as full-text articles, those published as abstracts only and unpublished data. We included trials of adults and children with asthma and a current prescription for an inhaled corticosteroid (ICS) (as monotherapy or in combination with a long-acting beta2-agonist (LABA)). Eligible trials compared an intervention primarily aimed at improving adherence to ICS versus usual care or an alternative intervention.

DATA COLLECTION AND ANALYSIS

Two review authors screened the searches, extracted study characteristics and outcome data from included studies and assessed risk of bias. Primary outcomes were adherence to ICS, exacerbations requiring at least oral corticosteroids and asthma control. We graded results and presented evidence in 'Summary of findings' tables for each comparison.We analysed dichotomous data as odds ratios, and continuous data as mean differences or standardised mean differences, all using a random-effects model. We described skewed data narratively. We made no a priori assumptions about how trials would be categorised but conducted meta-analyses only if treatments, participants and the underlying clinical question were similar enough for pooling to make sense.

MAIN RESULTS

We included 39 parallel randomised controlled trials (RCTs) involving adults and children with asthma, 28 of which (n = 16,303) contributed data to at least one meta-analysis. Follow-up ranged from two months to two years (median six months), and trials were conducted mainly in high-income countries. Most studies reported some measure of adherence to ICS and a variety of other outcomes such as quality of life and asthma control. Studies generally were at low or unclear risk of selection bias and at high risk of biases associated with blinding. We considered around half the studies to be at high risk for attrition bias and selective outcome reporting.We classified studies into four comparisons: adherence education versus control (20 studies); electronic trackers or reminders versus control (11 studies); simplified drug regimens versus usual drug regimens (four studies); and school-based directly observed therapy (three studies). Two studies are described separately.All pooled results for adherence education, electronic trackers or reminders and simplified regimens showed better adherence than controls. Analyses limited to studies using objective measures revealed that adherence education showed a benefit of 20 percentage points over control (95% confidence interval (CI) 7.52 to 32.74; five studies; low-quality evidence); electronic trackers or reminders led to better adherence of 19 percentage points (95% CI 14.47 to 25.26; six studies; moderate-quality evidence); and simplified regimens led to better adherence of 4 percentage points (95% CI 1.88 to 6.16; three studies; moderate-quality evidence). Our confidence in the evidence was reduced by risk of bias and inconsistency.Improvements in adherence were not consistently translated into observable benefit for clinical outcomes in our pooled analyses. None of the intervention types showed clear benefit for our primary clinical outcomes - exacerbations requiring an oral corticosteroid (OCS) (evidence of very low to low quality) and asthma control (evidence of low to moderate quality); nor for our secondary outcomes - unscheduled visits (evidence of very low to moderate quality) and quality of life (evidence of low to moderate quality). However, some individual studies reported observed benefits for OCS and use of healthcare services. Most school or work absence data were skewed and were difficult to interpret (evidence of low quality, when graded), and most studies did not specifically measure or report adverse events.Studies investigating the possible benefit of administering ICS at school did not measure adherence, exacerbations requiring OCS, asthma control or adverse events. One study showed fewer unscheduled visits, and another found no differences; data could not be combined.

AUTHORS' CONCLUSIONS

Pooled results suggest that a variety of interventions can improve adherence. The clinical relevance of this improvement, highlighted by uncertain and inconsistent impact on clinical outcomes such as quality of life and asthma control, is less clear. We have low to moderate confidence in these findings owing to concerns about risk of bias and inconsistency. Future studies would benefit from predefining an evidence-based 'cut-off' for acceptable adherence and using objective adherence measures and validated tools and questionnaires. When possible, covert monitoring and some form of blinding or active control may help disentangle effects of the intervention from effects of inclusion in an adherence trial.

Electronic Adherence Monitoring in a High-Utilizing Pediatric Asthma Cohort: A Feasibility Study

BACKGROUND

Inner-city, minority children with asthma have the highest rates of morbidity and death from asthma and the lowest rates of asthma controller medication adherence. Some recent electronic medication monitoring interventions demonstrated dramatic improvements in adherence in lower-risk populations. The feasibility and acceptability of such an intervention in the highest-risk children with asthma has not been studied.

OBJECTIVE

Our objective was to assess the feasibility and acceptability of a community health worker-delivered electronic adherence monitoring intervention among the highest utilizers of acute asthma care in an inner-city practice.

METHODS

This was a prospective cohort pilot study targeting children with the highest frequency of asthma-related emergency department and hospital care within a local managed care Medicaid plan. The 3-month intervention included motivational interviewing, electronic monitoring of controller and rescue inhaler use, and outreach by a community health worker for predefined medication alerts. We measured acceptability by using a modified technology acceptability model and changes in asthma control using the Asthma Control Test (ACT). Given prominent feasibility issues, we describe qualitative patterns of medication use at baseline only.

RESULTS

We enrolled 14 non-Hispanic black children with a median age of 3.5 years. Participants averaged 7.8 emergency or hospital visits in the year preceding enrollment. We observed three distinct patterns of baseline controller use: 4 patients demonstrated sustained use, 5 patients had periodic use, and 5 patients lapsed within 2 weeks. All participants initiated use of the electronic devices; however, no modem signal was transmitted for 5 or the 14 participants after a mean of 45 days. Of the 9 (64% of total) caregivers who completed the final study visit, all viewed the electronic monitoring device favorably and would recommend it to friends, and 5 (56%) believed that the device helped to improve asthma control. ACT scores improved by a mean of 2.7 points (P=.05) over the 3-month intervention.

CONCLUSIONS

High-utilizer, minority families who completed a community health worker-delivered electronic adherence intervention found it generally acceptable. Prominent feasibility concerns, however, such as recruitment, data transmission failure, and lost devices, should be carefully considered when designing interventions in this setting.

Mediators of Treatment Effects in a Randomized Clinical Trial of Multisystemic Therapy-Health Care in Adolescents With Poorly Controlled Asthma: Disease Knowledge and Device Use Skills

OBJECTIVE

Determine whether Multisystemic Therapy-Health Care (MST-HC) improved asthma knowledge and controller device use skills among African-American youth with poorly controlled asthma and whether any improvements mediated changes in illness management.

METHODS

A randomized controlled trial was conducted with 170 adolescents with moderate to severe asthma. Families were randomized to MST-HC or attention control. Data were collected at baseline and 6 and 12 months after intervention completion.

RESULTS

In linear mixed models, adolescents in the MST-HC group had increases in asthma knowledge; asthma knowledge was unchanged for attention control. Controller device use skills increased for adolescents in the MST-HC group, while skills declined for attention control. Both knowledge and skills mediated the relationship between intervention condition and changes in illness management.

CONCLUSIONS

Tailored, home-based interventions that include knowledge and skills building components are one means by which illness management in African-American youth with poorly controlled asthma can be improved.

Factors associated with medication adherence in school-aged children with asthma

Adherence to preventive asthma treatment is poor, particularly in children, yet the factors associated with adherence in this age group are not well understood.

Adherence was monitored electronically over 6 months in school-aged children who attended a regional emergency department in New Zealand for an asthma exacerbation and were prescribed twice-daily inhaled corticosteroids. Participants completed questionnaires including assessment of family demographics, asthma responsibility and learning style. Multivariable analysis of factors associated with adherence was conducted.

101 children (mean (range) age 8.9 (6–15) years, 51% male) participated. Median (interquartile range) preventer adherence was 30% (17–48%) of prescribed. Four explanatory factors were identified: female sex (+12% adherence), Asian ethnicity (+19% adherence), living in a smaller household (−3.0% adherence per person in the household), and younger age at diagnosis (+2.7% for every younger year of diagnosis) (all p<0.02).

In school-aged children attending the emergency department for asthma, males and non-Asian ethnic groups were at high risk for poor inhaled corticosteroid adherence and may benefit most from intervention. Four factors explained a small proportion of adherence behaviour indicating the difficulty in identifying adherence barriers. Further research is recommended in other similar populations.

Girls, children of Asian ethnicity, small household size and younger diagnosis age have better adherence to asthmahttp://ow.ly/Z1y6Q

The Digital Asthma Patient: The History and Future of Inhaler Based Health Monitoring Devices

The wave of digital health is continuously growing and promises to transform healthcare and optimize the patients' experience. Asthma is in the center of these digital developments, as it is a chronic disease that requires the continuous attention of both health care professionals and patients themselves. The accurate and timely assessment of the state of asthma is the fundamental basis of digital health approaches and is also the most significant factor toward the preventive and efficient management of the disease. Furthermore, the necessity of inhaled medication offers a basic platform upon which modern technologies can be integrated, namely the inhaler device itself. Inhaler-based monitoring devices were introduced in the beginning of the 1980s and have been evolving but mainly for the assessment of medication adherence. As technology progresses and novel sensing components are becoming available, the enhancement of inhalers with a wider range of monitoring capabilities holds the promise to further support and optimize asthma self-management. The current article aims to take a step for the mapping of this territory and start the discussion among healthcare professionals and engineers for the identification and the development of technologies that can offer personalized asthma self-management with clinical significance. In this direction, a technical review of inhaler based monitoring devices is presented, together with an overview of their use in clinical research. The aggregated results are then summarized and discussed for the identification of key drivers that can lead the future of inhalers.

Longitudinal stability of medication adherence among adolescent solid organ transplant recipients

Solid organ transplantation requires ongoing adherence to immunosuppressants and other medications. Although adolescence is a risk factor for poor medication-taking, little is known about the patterns of adherence within individuals over time. This study aimed to examine the stability of adherence over time using three different assessment techniques. Sixty-six AYA transplant recipients and/or their caregiver completed interviews of adherence at baseline and at least one yr later. Serum immunosuppressant assay levels were collected via medical chart review. Non-adherence percentages based on AYA report, caregiver report, and bioassay did not differ from Time 1 to Time 2. However, correlations for these measures across time were non-significant. Further, the majority of AYAs shifted to a different adherence category from Time 1 to Time 2. Overall, these results demonstrate individual variability in non-adherence over the course of adolescence and young adulthood and highlight the importance of frequent assessment across time for solid organ transplant recipients.

Medication adherence and the risk of severe asthma exacerbations: a systematic review

The benefits of drug therapy for asthma have been well established, but adherence to treatment is poor, and this might be associated with an increased risk of asthma exacerbations. The aim of this study was to review the literature on the association between adherence to asthma controller treatment and risk of severe asthma exacerbations in children and adults.

A systematic literature search was performed in PubMed, Embase and Web of Science, from inception until January 2014. Studies were included if data on the association between medication adherence and severe asthma exacerbations were presented. Quality was assessed using a modified version of the Newcastle–Ottawa Scale.

The search yielded 2319 unique publications, of which 23 met the inclusion criteria and underwent data extraction and quality scoring. High levels of heterogeneity across studies with regard to adherence and exacerbation measurements, designs and analysis precluded a formal meta-analysis. Although effect measures varied widely, good adherence was associated with fewer severe asthma exacerbations in high-quality studies.

Good adherence tended to be associated with lower risk of severe asthma exacerbations. Future studies should use standardised methodology to assess adherence and exacerbations, and should consider inhaler competence.

Timing of emergency department visits for childhood asthma after initial inhaled corticosteroid use

Inhaled corticosteroids can prevent acute exacerbations and emergency visits when used as part of a chronic care plan for long-term control of asthma, but low patient adherence and inadequate provider prescribing (clinical inertia) can limit these benefits. State Medicaid programs are a major source of insurance coverage for low-income children, paying for medications and preventive care, as well as bearing the cost of adverse outcomes for common chronic conditions in childhood, such as asthma. This study measured the incidence and timing of emergency department (ED) visits in the first 90 days after an initial inhaled corticosteroid prescription (ICS-Rx) among 43,156 Medicaid-enrolled children with a diagnosis of asthma in 14 southern states in 2007. One in 5 children (19.6%) with asthma had at least 1 ED visit in the first 90 days after initial ICS-Rx; 10% of these visits occurred within the first 48 hours, and 25% occurred within the first week. Continued ICS-Rx use was associated with lower risk of an ED visit. There were no racial differences in the ED visit rates. Initial ICS-Rx for Medicaid-enrolled children is a warning flag for short-term risk of asthma-related ED visits, whereas continued ICS-Rx use is protective for at least 90 days. Primary care follow-up may be needed within the first 2 days after initial ICS-Rx to prevent adverse outcomes. Medicaid programs could use claims data for surveillance of adherence to guideline-concordant therapy and for sentinel events marking windows of a higher risk for ED visits. Population Health Management 2015;18:54-60.

Multisystemic therapy for high-risk African American adolescents with asthma: a randomized clinical trial

OBJECTIVE

The primary purpose of the study was to determine whether Multisystemic Therapy adapted for health care settings (MST-HC) improved asthma management and health outcomes in high-risk African American adolescents with asthma.

METHOD

Eligibility included self-reported African American ethnicity, ages 12 to 16, moderate to severe asthma, and an inpatient hospitalization or at least 2 emergency department visits for asthma in the last 12 months. Adolescents and their families (N = 170) were randomized to MST-HC or in-home family support. Data were collected at baseline and posttreatment (7 months) based on an asthma management interview, medication adherence phone diary, and lung function biomarker (forced expiratory volume in 1 s [FEV1]). Analyses were conducted using linear mixed modeling for continuous outcomes and generalized linear mixed modeling for binary outcomes.

RESULTS

In intent-to-treat analyses, adolescents randomized to MST-HC were more likely to improve on 2 of the measures of medication adherence and FEV1. Per-protocol analysis demonstrated that MST-HC had a medium effect on adherence measures and had a small to medium effect on lung function and the adolescent's response to asthma exacerbations.

CONCLUSION

There are few interventions that have been shown to successfully improve asthma management in minority youth at highest risk for poor morbidity and mortality. MST, a home-based psychotherapy originally developed to target behavior problems in youth, improved asthma management and lung function compared to a strong comparison condition. Further follow-up is necessary to determine whether MST-HC reduces health care utilization accounting for seasonal variability. A limitation to the study is that a greater number of participants in the control group came from single-parent families than in the MST group.

Examining household asthma management behavior through a microeconomic framework

National guidelines on the effective management of pediatric asthma have been promoted for over 20 years, yet asthma-related morbidity among low-income children remains disproportionately high. To date, household and clinical interventions designed to remediate these differences have been informed largely by a health behavior framework. However, these programs have not resulted in consistent sustained improvements in targeted populations. The continued funding and implementation of programs based on the health behavior framework leads us to question if traditional behavioral models are sufficient to understand and promote adaptation of positive health management behaviors. We introduce the application of the microeconomic framework to investigate potential mechanisms that can lead to positive management behaviors to improve asthma-related morbidity. We provide examples from the literature on health production, preferences, trade-offs and time horizons to illustrate how economic constructs can potentially add to understanding of disease management. The economic framework, which can be empirically observed, tested, and quantified, can explicate the engagement in household-level activities that would affect health and well-being. The inclusion of a microeconomic perspective in intervention research may lead to identification of mechanisms that lead to household decisions with regard to asthma management strategies and behavior. The inclusion of the microeconomic framework to understand the production of health may provide a novel theoretical framework to investigate the underlying causal behavioral mechanisms related to asthma management and control. Adaptation of an economic perspective may provide new insight into the design and implementation of interventions to improve asthma-related morbidity in susceptible populations.

An examination of 1-year adherence and persistence rates to antiepileptic medication in children with newly diagnosed epilepsy

OBJECTIVE

The primary aim of the current study was to use new methods to examine 1-year quality of medication dosing (adherence) and continuation with medication treatment (persistence) rates to antiepileptic drugs (AEDs) in children with newly diagnosed epilepsy.

METHODS

Medication-taking behaviors of AEDs were assessed using electronic monitors for 117 children with newly diagnosed epilepsy for the first year after diagnosis.

RESULTS

Approximately 15% of participants were categorized as nonpersistent (i.e., failed to take medication for >15 consecutive days) 6 months after AED initiation, which increased to 26.6% of participants at 1 year. The majority of medication dosing events took place within a +/-2-hr interval as recommended. The group with lower socioeconomic status demonstrated more nonpersistence over time.

CONCLUSION

Examining adherence and persistence in medication taking behaviors may yield different types of data for clinical and research purposes.

Improving outcomes for underserved adolescents with asthma

BACKGROUND AND OBJECTIVE

Asthma is the most common chronic disease of childhood. Treatment adherence by adolescents is often poor, and their outcomes are worse than those of younger patients. We conducted a quality improvement initiative to improve asthma control and outcomes for high-risk adolescents treated in a primary care setting.

METHODS

Interventions were guided by the Chronic Care Model and focused on standardized and evidence-based care, care coordination and active outreach, self-management support, and community connections.

RESULTS

Patients with optimally well-controlled asthma increased from ∼10% to 30%. Patients receiving the evidence-based care bundle (condition/severity characterized in chart and, for patients with persistent asthma, an action plan and controller medications at the most recent visit) increased from 38% to at or near 100%. Patients receiving the required self-management bundle (patient self-assessment, stage-of-readiness tool, and personal action plan) increased from 0% to ∼90%. Patients and parents who were confident in their ability to manage their or their adolescent's asthma increased from 70% to ∼85%. Patient satisfaction and the mean proportion of patients with asthma-related emergency department visits or hospitalizations remained stable at desirable levels.

CONCLUSIONS

Implementing interventions focused on standardized and evidence-based care, self-management support, care coordination and active outreach, linkage to community resources, and enhanced follow-up for patients with chronically not-well-controlled asthma resulted in sustained improvement in asthma control in adolescent patients. Additional interventions are likely needed for patients with chronically poor asthma control.

Electronic monitoring of medication adherence in early maintenance phase treatment for pediatric leukemia and lymphoma: identifying patterns of nonadherence

OBJECTIVE

To describe patterns of treatment adherence to early maintenance phase therapy for acute lymphoblastic leukemia (ALL) and lymphoblastic lymphoma (LBL).

METHODS

Using an objective observational method (electronic monitoring), adherence was examined for 139 patients aged 7-19 years diagnosed with ALL or LBL across 6 centers.

RESULTS

The mean adherence percentage was 86.2%. Adherence rates declined over the 1-month of follow-up to 83%. 3 linear trajectories of 6-mercaptopurine adherence were identified: (1) exemplary adherence (n = 99): Averaging nearly 100%; (2) deteriorating (n = 23): Adherence decreased from 100 to 60%; and (3) chronically poor adherence (n = 9): Averaging 40%.

CONCLUSIONS

Adherence promotion interventions might be tailored to subgroups of patients who demonstrated problematic patterns of treatment adherence that could place them at risk for relapse. This research demonstrates the importance of using objective real-time measures of medication adherence for measuring and documenting adherence patterns.

Effect of Type D personality on medication adherence in early adolescents with asthma

OBJECTIVE

Medication adherence for daily preventive asthma medication is especially low during adolescence. In the present study, we aimed to test whether Type D personality (both as a category and with its constituent components (negative affectivity: NA and social inhibition: SI) separately and in interaction) predicts medication adherence of early adolescents with asthma.

METHODS

In a prospective study, 188 early adolescents with asthma who were prescribed daily preventive asthma medication completed questionnaires on Type D personality, medication adherence, socio-demographic and clinical information, and depressive symptoms in the Spring/Summer of 2011 (T1) and again 12months later (T2). Multiple regression analyses, controlling for demographic and clinical information and for depressive symptoms, were conducted to test whether Type D personality (either as a categorical or dimensional construct) predicted changes in medication adherence over time.

RESULTS

Adherence was significantly lower at T2 than at T1 and this decrease was predicted by the categorical construct of Type D personality. Analyses of the two separate dimensions NA and SI and their interaction showed that higher scores on NA at T1 predicted more decrease in adherence over time. Neither SI nor the interaction between NA and SI predicted changes in adherence.

CONCLUSION

This is the first study to test the relationship between Type D personality and medication adherence in adolescents. Although categorical Type D personality predicts mediation adherence of adolescent with asthma over time, dimensional analyses suggest that this is due to negative affectivity only, and not to the combination of negative affectivity and social inhibition.

Adherence monitoring and e-health: how clinicians and researchers can use technology to promote inhaler adherence for asthma

In the past decade, rapid technological developments have advanced electronic monitoring devices (EMD) for asthma inhalers beyond simple recording of actuations to providing adherence promotion features and detailed information about patterns of medication use. This article describes currently available EMDs, discusses their utility and limitations in assessing adherence, and describes the potential for EMD-based adherence promotion interventions in clinical settings. To date, the main use of EMDs has been in clinical research. In selected populations, simple EMD-based adherence interventions, delivered either through clinician-to-patient feedback about medication use or by direct-to-patient reminders for missed doses, can significantly improve adherence. Further work is now needed to determine the impact of EMDs on clinical outcomes and their cost-effectiveness and feasibility for different clinical settings, including in disadvantaged populations. If this evidence can be provided, then the use of EMDs could expand into the management of asthma in populations with high health care costs, eg, severe asthma. In the future, medication monitoring could help distinguish poor treatment response from poor adherence, guide prescribing decisions, and prompt providers to discuss barriers to adherence; electronic health records may provide the gateway for integrating medication-use monitoring into digital chronic care management.

Prescription fill patterns in underserved children with asthma receiving subspecialty care

BACKGROUND

Children with asthma receiving specialty care have been found to have improved asthma outcomes. However, these outcomes can be adversely affected by poor adherence with controller medications.

OBJECTIVE

To analyze pharmacy fill patterns as a measure of primary adherence in a group of underserved minority children receiving allergy subspecialty care.

METHODS

As part of a larger 18-month nebulizer use study in underserved children (ages 2-8 years) with persistent asthma, 53 children were recruited from an urban allergy practice. Pharmacy records were compared with prescribing records for all asthma medications.

RESULTS

Allergist controller prescriptions were written in 30-day quantities with refills and short-acting β-agonists (SABAs) with no refills. Only 49.1% of inhaled corticosteroid (ICS), 49.5% of combination ICS and long-acting β-agonist, and 64.5% of leukotriene modifier (LTM) initial and refill prescriptions were ever filled during the 18-month period. A mean of 5.1 refills (range, 0-14) for SABAs were obtained during 18 months, although only 1.28 SABA prescriptions were prescribed by the allergist. Mean times between first asthma prescription and actual filling were 30 days (range, 0-177 days) for ICSs, 26.6 days (range, 0-156 days) for LTMs, and 16.8 days (range, 0-139 days) for SABAs.

CONCLUSION

Underserved children with asthma receiving allergy subspecialty care suboptimally filled controller prescriptions, yet filled abundant rescue medications from other prescribers. Limiting albuterol prescriptions to one canister without additional refills may provide an opportunity to monitor fill rates of both rescue and controller medications and provide education to patients about appropriate use of medications to improve adherence.

Assessing adolescent asthma symptoms and adherence using mobile phones

Background

Self-report is the most common method of measuring medication adherence but is influenced by recall error and response bias, and it typically does not provide insight into the causes of poor adherence. Ecological momentary assessment (EMA) of health behaviors using mobile phones offers a promising alternative to assessing adherence and collecting related data that can be clinically useful for adherence problem solving.

Objective

To determine the feasibility of using EMA via mobile phones to assess adolescent asthma medication adherence and identify contextual characteristics of adherence decision making.

Methods

We utilized a descriptive and correlational study design to explore a mobile method of symptom and adherence assessment using an interactive voice response system. Adolescents aged 12-18 years with a diagnosis of asthma and prescribed inhalers were recruited from an academic medical center. A survey including barriers to mobile phone use, the Illness Management Survey, and the Pediatric Asthma Quality of Life Questionnaire were administered at baseline. Quantitative and qualitative assessment of asthma symptoms and adherence were conducted with daily calls to mobile phones for 1 month. The Asthma Control Test (ACT) was administered at 2 study time points: baseline and 1 month after baseline.

Results

The sample consisted of 53 adolescents who were primarily African American (34/53, 64%) and female (31/53, 58%) with incomes US$40K/year or lower (29/53, 55%). The majority of adolescents (37/53, 70%) reported that they carried their phones with them everywhere, but only 47% (25/53) were able to use their mobile phone at school. Adolescents responded to an average of 20.1 (SD 8.1) of the 30 daily calls received (67%). Response frequency declined during the last week of the month (b=-0.29, P<.001) and was related to EMA-reported levels of rescue inhaler adherence (r= 0.33, P=.035). Using EMA, adolescents reported an average of 0.63 (SD 1.2) asthma symptoms per day and used a rescue inhaler an average of 70% of the time (SD 35%) when they experienced symptoms. About half (26/49, 53%) of the instances of nonadherence took place in the presence of friends. The EMA-measured adherence to rescue inhaler use correlated appropriately with asthma control as measured by the ACT (r=-0.33, P=.034).

Conclusions

Mobile phones provided a feasible method to assess asthma symptoms and adherence in adolescents. The EMA method was consistent with the ACT, a widely established measure of asthma control, and results provided valuable insights regarding the context of adherence decision making that could be used clinically for problem solving or as feedback to adolescents in a mobile or Web-based support system.

Pediatric psychologist use of adherence assessments and interventions

OBJECTIVE

To document current clinical practices for medical regimen adherence assessment and intervention in the field of pediatric psychology.

METHODS

113 members of the Society of Pediatric Psychology completed an anonymous online survey that assessed use of adherence assessments and interventions in clinical practice, barriers and facilitators to their use, and preferred resources for obtaining information on adherence assessments and interventions.

RESULTS

Respondents reported using a range of adherence assessment and intervention strategies, some of which are evidence-based. Barriers to implementing these clinical strategies included time constraints and lack of familiarity with available clinical tools. Respondents reported that education about effective clinical tools would facilitate their use of adherence assessments and interventions.

CONCLUSIONS

Future research and clinical efforts in adherence should consider developing practical tools for clinical practice, making accessible resources to promote dissemination of these tools, and increase understanding of clinician implementation of adherence assessments and interventions.

Adherence to inhaled therapies, health outcomes and costs in patients with asthma and COPD

Suboptimal adherence to pharmacological treatment of asthma and chronic obstructive pulmonary disease (COPD) has adverse effects on disease control and treatment costs. The reasons behind non-adherence revolve around patient knowledge/education, inhaler device convenience and satisfaction, age, adverse effects and medication costs. Age is of particular concern given the increasing prevalence of asthma in the young and increased rates of non-adherence in adolescents compared with children and adults. The correlation between adherence to inhaled pharmacological therapies for asthma and COPD and clinical efficacy is positive, with improved symptom control and lung function shown in most studies of adults, adolescents and children. Satisfaction with inhaler devices is also positively correlated with improved adherence and clinical outcomes, and reduced costs. Reductions in healthcare utilisation are consistently observed with good adherence; however, costs associated with general healthcare and lost productivity tend to be offset only in more adherent patients with severe disease, versus those with milder forms of asthma or COPD. Non-adherence is associated with higher healthcare utilisation and costs, and reductions in health-related quality of life, and remains problematic on an individual, societal and economic level. Further development of measures to improve adherence is needed to fully address these issues.

Treatment adherence among adolescents with epilepsy: what really matters?

Treatment adherence is often suboptimal among adolescents with epilepsy. However, knowledge is lacking regarding factors that affect adherence. Empirical studies and theories of human development suggest that self-management skills, self-efficacy, and sense of control are related to adherence. Eighty-eight adolescents with epilepsy, and their parents, completed standardized measures assessing epilepsy knowledge and expectations, treatment self-management, sense of control, and self-efficacy. Better self-reported parent adherence was correlated with greater epilepsy knowledge/expectations (p<0.001) and more medications (p = 0.042). Better self-reported adolescent adherence was correlated with fewer siblings (p = 0.003) and higher adolescent epilepsy knowledge/expectations (p<0.001). Greater adolescent epilepsy knowledge/expectations correlated with parent self-reported adherence (p<0.001), Powerful others locus of control (p = 0.008), and adolescent/parent discordance regarding epilepsy knowledge/expectations (p<0.001). Interventions that enhance adolescent's knowledge of epilepsy and their treatment plan, while ensuring that teens and parents are in agreement with regard to epilepsy treatment, might contribute to better adherence.

Rates and predictors of oral medication adherence in pediatric patients with IBD

BACKGROUND

Symptoms of inflammatory bowel disease (IBD) include bloody diarrhea, fatigue, abdominal pain, and weight loss. Long-term management of remission for most patients requires adherence to taking 1 or more oral medications daily, in the absence of symptoms. We investigated whether disease characteristics and behavioral characteristics predict adherence to prescribed medical regimens.

METHODS

: Patients aged 8 to 17.5 years, newly diagnosed with IBD, and a matched cohort previously diagnosed were studied over a 6-month period. Adherence was assessed using medication electronic monitoring devices (Medication Event Monitoring Systems); participants and parents completed questionnaires regarding emotional and behavioral functioning, and biological parameters were monitored.

RESULTS

: Adherence was monitored for 45 newly and 34 previously diagnosed patients. In total, 16,478 patient-days (including 12,066 discrete days) were electronically monitored. Overall, 70.6% of 5-aminosalicylic acid and 65.4% of 6-mercaptopurine doses were taken. Only 25% and 15% of older adolescents took at least 80% of their 5-aminosalicylic acid and 6-mercaptopurine, respectively, compared with about 83% and 64% of 8-year-olds to 11-year-olds. Only age and behavioral issues were statistically linked to rates of adherence.

CONCLUSIONS

Adherence to commonly prescribed oral medications for IBD is challenging for patients. Screening for emotional and behavioral problems, especially among older adolescents, would be important in identifying patients at risk of poor adherence, who might benefit from interventions. Biological solutions, although critical, when applied without attention to behavioral issues, are not likely to provide the level of therapeutic benefit that can be provided in a combined biobehavioral approach.

The in vivo adherence intervention for at risk adolescents with asthma: report of a randomized pilot trial

OBJECTIVE

Low-income and minority adolescents are at high risk for poor asthma outcomes, due in part to adherence. We tested acceptability, feasibility, and effect sizes of an adherence intervention for low socioeconomic status (SES) minority youth with moderate- and severe-persistent asthma. Design and Methods Single-site randomized pilot trial: intervention (n = 12; asthma education, motivational interviewing, problem-solving skills training, 1 month cell-phone with tailored text messaging) versus control (n = 14; asthma education; cell-phone without tailored messaging). Calculated effect-sizes of relative change from baseline (1 and 3 months).

RESULTS

Intervention was judged acceptable and feasible by participants. Participants (12-18 years, mean = 15.1, SD = 1.67) were 76.9% African-American, 80.7% public/no insurance. At 1 and 3 months, asthma symptoms (Cohen's d's = 0.40, 0.96) and HRQOL (PedsQL™; Cohen's d's = 0.23, 1.25) had clinically meaningful medium to large effect sizes.

CONCLUSIONS

This intervention appears promising for at-risk youth with moderate- and severe-persistent asthma.

Adolescent decision-making about use of inhaled asthma controller medication: results from focus groups with participants from a prior longitudinal study

BACKGROUND

Adherence with inhaled controller medications for asthma is known to be highly variable with many patients taking fewer doses than recommended for consistent control of lung inflammation. Adherence also worsens as children become teenagers, although the exact causes are not well established.

OBJECTIVE

To use focus group methodology to examine beliefs, feelings, and behaviors about inhaled asthma controller medication in adolescents and young adults who had previously participated in a longitudinal study of asthma treatment adherence and outcome in order to develop more effective management strategies.

METHODS

Twenty-six subjects participated in 6 focus groups comprised of 3-5 young adults (age range 12-20 years). Verbatim transcripts of these groups were analyzed using the long-table method of content analysis to identify key themes raised by participants.

RESULTS

A variety of beliefs, feelings, and behaviors influence the adolescent's decision about how to use their asthma medication. Some of the adolescents understood the importance of daily medication and were committed to the treatment plan prescribed by their provider. Poorer adherence was the product of misinformation, incorrect assumptions about their asthma, and current life situations.

CONCLUSIONS

These results, by highlighting potential mechanisms underlying both better and worse adherence, inform the development of strategies to improve adherence behavior in adolescents and young adults with asthma. Knowledge of the specific beliefs, feelings, and behaviors that underlie adolescents' use of inhaled asthma controller medication will help providers maximize treatment adherence in this notoriously difficult patient population.

Electronic monitoring and feedback to improve adherence in pediatric asthma

OBJECTIVE

To evaluate the effectiveness of electronic monitoring and feedback to improve adherence in children taking daily asthma controller medications.

METHOD

Five patients with asthma and considered nonadherent participated. Inhalers were electronically monitored with the MDILogII(TM) device, and feedback was given by medical staff. Using a nonconcurrent multiple-baseline design, patients and their parents received bimonthly feedback regarding medication use. Following treatment, feedback was withdrawn and effects of monitoring alone were observed.

RESULTS

Three participants showed improvements in adherence following treatment, with more notable increases when baseline adherence was low. Improvements in the inhaler technique occurred for all patients. Some patients demonstrated improvements in lung functioning and functional severity. When feedback was withdrawn, adherence decreased for some participants, but technique improvements maintained.

CONCLUSIONS

Results support the use of objective monitoring devices for assessing pediatric asthma patients' adherence and indicate that feedback from medical staff may improve and maintain medication adherence for some patients.

Online Support Intervention for Adolescents With Asthma and Allergies

Objectives. To determine appropriate components and contents of an online peer support intervention for young adolescents and to evaluate intervention processes, perceived benefits, and satisfaction with the intervention.

Methods. Three months of support were provided through synchronous chat, e-mail exchange, instant messaging, and bulletin boards. Online support group sessions were facilitated by trained peer mentors (older youth/young adults with asthma and allergies) and health professionals. Participant use of online options was tracked (eg, log-ons, e-mails, chat minutes). Qualitative data were elicited from peer mentor reports, online support group chat transcripts, project coordinators’ field notes, peer mentor exit interviews, and adolescent telephone interviews.

Results. Almost all adolescents were satisfied with this online support intervention. Topics discussed in the support groups were pertinent to their educational and support needs. Peer mentors provided emotional, affirmation, and information support. Participants appreciated opportunities for social comparison and reciprocal exchange of support with peers.

Conclusion and implications. A major contribution was documentation of the complex intervention ingredients and processes through qualitative and quantitative methods that elicited diverse stakeholders’ perspectives. This strategy enables adaptation and integration into practice. Adolescents who benefited most felt isolated, suggesting the importance of targeting vulnerable youth for support programs.

Dynamic p-technique for modeling patterns of data: applications to pediatric psychology research

OBJECTIVE

Dynamic p-technique (DPT) is a potentially useful statistical method for examining relationships among dynamic constructs in a single individual or small group of individuals over time. The purpose of this article is to offer a nontechnical introduction to DPT.

METHOD

An overview of DPT analysis, with an emphasis on potential applications to pediatric psychology research, is provided. To illustrate how DPT might be applied, an example using simulated data is presented for daily pain and negative mood ratings.

RESULTS

The simulated example demonstrates the application of DPT to a relevant pediatric psychology research area. In addition, the potential application of DPT to the longitudinal study of adherence is presented.

CONCLUSION

Although it has not been utilized frequently within pediatric psychology, DPT could be particularly well-suited for research in this field because of its ability to powerfully model repeated observations from very small samples.

Fractional exhaled nitric oxide exchange parameters among 9-year-old inner-city children

OBJECTIVES AND HYPOTHESIS

To determine the feasibility of using a multiple flow offline fractional exhaled nitric oxide (FeNO) collection method in an inner-city cohort and determine this population's alveolar and conducting airway contributions of NO. We hypothesized that the flow independent NO parameters would be associated differentially with wheeze and seroatopy.

METHODS

As part of a birth cohort study, 9-year-old children (n=102) of African-American and Dominican mothers living in low-income NYC neighborhoods had FeNO samples collected offline at constant flow rates of 50, 83, and 100 ml/sec. Seroatopy was defined as having measurable (≥ 0.35 IU/ml) specific IgE to any of the five inhalant indoor allergens tested. Current wheeze (last 12 months) was assessed by ISAAC questionnaire. Bronchial NO flux (J(NO) ) and alveolar NO concentration (C(alv)) were estimated by the Pietropaoli and Hogman methods.

RESULTS

Valid exhalation flow rates were achieved in 96% of the children. Children with seroatopy (53%) had significantly higher median J(NO) (522 pl/sec vs. 161 pl/sec, P<0.001) when compared to non-seroatopic children; however, median C(alv) was not significantly different between these two groups (5.5 vs. 5.8, P=0.644). Children with wheeze in the past year (21.6%) had significantly higher median C(alv) (8.4 ppb vs. 4.9 ppb, P<0.001), but not J(NO) (295 pl/sec vs. 165 pl/sec, P=0.241) when compared with children without wheeze. These associations remained stable after adjustment for known confounders/covariates.

CONCLUSIONS

The multiple flow method was easily implemented in this pediatric inner-city cohort. In this study population, alveolar concentration of NO may be a better indicator of current wheeze than single flow FeNO.

The development of a motivational interviewing intervention to promote medication adherence among inner-city, African-American adolescents with asthma

OBJECTIVE

to develop and assess the feasibility of a motivational interviewing (MI) based asthma self-management program for inner-city, African-American, adolescents with asthma.

METHODS

37 African-American adolescents (age 10-15 years) recently seen in an inner-city emergency department for asthma and prescribed an asthma controller medication participated in the newly developed program consisting of 5 home visits. Adolescents and their caregivers completed phone-based surveys before and after the intervention.

RESULTS

95% of the adolescents completed all 5 sessions; 89% of caregivers and 76% of adolescents believed other families would benefit from the intervention. Caregivers were more likely to report 100% adherence post-intervention compared to pre-intervention and reported a trend for adolescents taking greater responsibility for their asthma. There were no pre-post-differences in adolescent-reported medication adherence, but adolescents did reported increased motivation and readiness to adhere to treatment. Caregivers and adolescents each reported statistically significant increases in their asthma quality of life.

CONCLUSIONS

the findings from this pilot study suggest that MI is a feasible and promising approach for increasing medication adherence among inner-city adolescents with asthma and is worthy of further evaluation in a randomized trial.

PRACTICE IMPLICATIONS

incorporating MI into disease management programs may enhance their effectiveness.