Medications used by children with asthma living in the inner city

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.

Comparing Written Versus Pictorial Asthma Action Plans to Improve Asthma Management and Health Outcomes Among Children and Adolescents: Protocol of a Pilot and Feasibility Randomized Controlled Trial

Background

Asthma is an important focus for pediatric health research as management of asthma symptoms is a significant challenge, and morbidity and mortality among youths with asthma remain prevalent. Treatment guidelines for asthma recommend a written asthma action plan (WAAP) that summarizes individualized instructions for daily medication use. However, WAAPs are typically written at a seventh- to ninth-grade reading level, which can be a barrier to young people in understanding their treatment, having confidence in using a WAAP, and engaging with asthma education.

Objective

Utilizing a feasibility and pilot randomized controlled trial (RCT) design, the objective of the Take Action for Asthma Control study is to test a symptom-based, computer-generated pictorial asthma action plan (PAAP) in comparison with a standard WAAP and assess the feasibility and acceptability of the asthma action plan (AAP) intervention and study procedures. The study has 3 aims: (1) estimate the effect sizes of PAAPs compared with WAAPs on outcomes (eg, AAP knowledge and medication adherence), (2) evaluate feasibility and acceptability of AAP intervention and RCT procedures from the perspectives of key stakeholders, and (3) establish whether parent and youth literacy levels are associated with treatment outcomes.

Methods

This feasibility and pilot RCT is a block randomized, 2-arm, parallel-group clinical trial, lasting 6 months in duration. At baseline, participants will be randomly assigned to receive a PAAP or WAAP generated for them and reviewed with them by their asthma physician. Study procedures will take place over 4 separate time points: a baseline clinic appointment, 1-month telephone follow-up, and 3- and 6-month clinic-based follow-ups. At each time point, data will be collected related to the main outcomes: AAP knowledge, AAP satisfaction, asthma control, pulmonary function, and adherence to daily asthma medication. A sample size of up to 60 participants (aged 8-17 years) will be recruited. Feasibility and acceptability data will be collected via one-to-one qualitative interviews with providers involved in the study and a subgroup of families that participate in the study.

Results

Recruitment and data collection began in May 2017 and were completed in October 2018.

Conclusions

This pilot and feasibility study will test the potential efficacy, feasibility, and acceptability of an AAP intervention and study procedures. The findings will inform the design and delivery of a future definitive trial to assess the efficacy of PAAPs versus WAAPs in supporting asthma self-management among children and adolescents.

International Registered Report Identifier (IRRID)

DERR1-10.2196/11733

Influence of viral infection on the relationships between airway cytokines and lung function in asthmatic children

BACKGROUND

Few longitudinal studies examine inflammation and lung function in asthma. We sought to determine the cytokines that reduce airflow, and the influence of respiratory viral infections on these relationships.

METHODS

Children underwent home collections of nasal lavage during scheduled surveillance periods and self-reported respiratory illnesses. We studied 53 children for one year, analyzing 392 surveillance samples and 203 samples from 85 respiratory illnesses. Generalized estimated equations were used to evaluate associations between nasal lavage biomarkers (7 mRNAs, 10 proteins), lung function and viral infection.

RESULTS

As anticipated, viral infection was associated with increased cytokines and reduced FVC and FEV1. However, we found frequent and strong interactions between biomarkers and virus on lung function. For example, in the absence of viral infection, CXCL10 mRNA, MDA5 mRNA, CXCL10, IL-4, IL-13, CCL4, CCL5, CCL20 and CCL24 were negatively associated with FVC. In contrast, during infection, the opposite relationship was frequently found, with IL-4, IL-13, CCL5, CCL20 and CCL24 levels associated with less severe reductions in both FVC and FEV1.

CONCLUSIONS

In asthmatic children, airflow obstruction is driven by specific pro-inflammatory cytokines. In the absence of viral infection, higher cytokine levels are associated with decreasing lung function. However, with infection, there is a reversal in this relationship, with cytokine abundance associated with reduced lung function decline. While nasal samples may not reflect lower airway responses, these data suggest that some aspects of the inflammatory response may be protective against viral infection. This study may have ramifications for the treatment of viral-induced asthma exacerbations.

Whole-Genome Sequencing of Pharmacogenetic Drug Response in Racially Diverse Children with Asthma

RATIONALE

Albuterol, a bronchodilator medication, is the first-line therapy for asthma worldwide. There are significant racial/ethnic differences in albuterol drug response.

OBJECTIVES

To identify genetic variants important for bronchodilator drug response (BDR) in racially diverse children.

METHODS

We performed the first whole-genome sequencing pharmacogenetics study from 1,441 children with asthma from the tails of the BDR distribution to identify genetic association with BDR.

MEASUREMENTS AND MAIN RESULTS

We identified population-specific and shared genetic variants associated with BDR, including genome-wide significant (P < 3.53 × 10-7) and suggestive (P < 7.06 × 10-6) loci near genes previously associated with lung capacity (DNAH5), immunity (NFKB1 and PLCB1), and β-adrenergic signaling (ADAMTS3 and COX18). Functional analyses of the BDR-associated SNP in NFKB1 revealed potential regulatory function in bronchial smooth muscle cells. The SNP is also an expression quantitative trait locus for a neighboring gene, SLC39A8. The lack of other asthma study populations with BDR and whole-genome sequencing data on minority children makes it impossible to perform replication of our rare variant associations. Minority underrepresentation also poses significant challenges to identify age-matched and population-matched cohorts of sufficient sample size for replication of our common variant findings.

CONCLUSIONS

The lack of minority data, despite a collaboration of eight universities and 13 individual laboratories, highlights the urgent need for a dedicated national effort to prioritize diversity in research. Our study expands the understanding of pharmacogenetic analyses in racially/ethnically diverse populations and advances the foundation for precision medicine in at-risk and understudied minority populations.

Every parent tells a story: why non-adherence may persist in children receiving guideline-based comprehensive asthma care

OBJECTIVE

Effective self-management and adherence to inhaled corticosteroids are issues of particular interest in comprehensive asthma care. In spite of this care, however, a number of parents and children remain non-adherent. The reasons for this non-adherence have up till now been unknown, because previous adherence studies have based their findings either on populations with poor adherence or on unreliable self-reported adherence. This study was designed to explore factors that contribute to persistent non-adherence to inhaled corticosteroids in children ranging between 2 and 12 years of age receiving comprehensive asthma care, with adherence assessed objectively.

METHODS

This qualitative study was based on in-depth interviews which took place in the homes of parents whose children had completed a one-year follow-up of electronically measured adherence to inhaled corticosteroids. Rich and comprehensive descriptions of parents' own accounts of self-management behavior were obtained using active listening techniques. Each interview was recorded and transcribed verbatim followed by data analysis using standard methodology for qualitative studies.

RESULTS

Twenty children's parents (mean age 5.9 years) were interviewed. Distinctive patterns of modifiable barriers to adherence emerged, including a novel finding of parents misjudging their child's ability to manage the daily use of medication by him/herself. Persistent non-adherence appeared to be caused by a number of maintaining factors. Most noticeable factors were unawareness of non-adherence by both parents and health care providers, a lack of parental drive to achieve high adherence and ineffective parental problem-solving behaviour.

CONCLUSIONS

This study has identified modifiable barriers to adherence in families participating in a comprehensive asthma care programme. Future studies are needed to verify our novel findings and to investigate whether interventions around these barriers are needed to increase the effectiveness of asthma care programs.

Perceived parent financial burden and asthma outcomes in low-income, urban children

The purpose of this study was to describe the demographic characteristics of low-income parents who perceive financial burden in managing their child's asthma and related associations with their children's asthma outcomes and clinical characteristics. We hypothesized that (1) identifiable differences between parents who do and do not report burden; (2) regardless of access to care, asthma outcomes would be worse for children whose parents perceive financial burden in obtaining care for their child's condition. Baseline data from a randomized trial evaluating the effect of a school-based asthma intervention were analyzed for this research. Eight hundred thirty-five parents were interviewed by telephone regarding their child's asthma management. Associations between demographic and clinical factors and perception of financial burden were examined using bivariate analysis. Multivariate regression analyses were used to examine associations between perceptions of financial burden and asthma outcomes, including emergency department visits, hospitalizations, and missed school days. Perceived financial burden was evident in 10% (n = 79) of parents. Female heads of household (χ2 (3) = 7.41; p < 0.05), those at the lowest income levels (χ2 (3) = 12.14; p < 0.01), and those whose child's asthma was poorly controlled (χ2 (2) = 49.42; p < 0.001) were most likely to perceive financial burden. In models controlling for level of asthma control, income, and having a usual source of asthma care, parents who perceived financial burden were more likely to have children who had at least one emergency department visit (OR = 1.95; 95% CI = 1.15 to 3.29), hospitalization (OR = 3.99; 95% CI = 2.03 to 7.82), or missed school days due to asthma (OR = 3.26; 95% CI = 1.60 to 6.67) in the previous year. Our results supported our hypotheses. Among low-income parents of children with asthma, the majority do not perceive financial burden to obtaining care. However, among parents that do perceive burden, urgent care use and missed school days due to asthma for their child were significantly higher, regardless of family income and having a usual source of asthma care. Mothers and grandmothers heading families and those caring for children with uncontrolled asthma were most likely to report burden. These findings have implications for clinical practice in that health care providers may be able to take simple actions to determine patients' financial-related perceptions, correct misconceptions, and help patients consider their full range of options to manage their child's asthma.

Caregiver expectations of clinicians during the asthma diagnostic process in young children: thematic analysis of focus groups

OBJECTIVE

Asthma is difficult to diagnose in young children, and the subjective experience of caregivers varies. Clinicians' ability to meet caregiver expectations during the diagnostic process improves the caregiver-clinician relationship, and effectiveness of disease management strategies.

METHODS

We performed thematic analysis of seven focus groups (FGs) with 38 caregivers of children 1-6 years old diagnosed with asthma in the preceding 12 months. Caregivers were classified as satisfied or dissatisfied with clinicians during the asthma diagnostic process. Differential themes in these two groups identified caregiver expectations that determined satisfaction with the diagnostic process.

RESULTS

Caregiver expectations during the asthma diagnostic process included (1) provision of a diagnostic strategy, (2) acknowledgment of caregiver advocacy, (3) addressing caregiver's beliefs about treatment with asthma medications before a diagnosis was confirmed, and (4) discussing asthma specialist involvement in the diagnosis. Higher perceived severity of a child's illness made caregiver expectations more difficult to meet.

CONCLUSIONS

We conclude that clinicians considering an asthma diagnosis in young children must include a diagnostic strategy that is congruent with the caregiver's beliefs about the underlying illness, use of medication, and asthma specialist involvement. Perceived illness severity must also be accounted for when designing a diagnostic strategy.

Medication adherence among Latino and non-Latino white children with asthma

OBJECTIVE

Latino children of Caribbean descent remain at high risk for poorly controlled asthma. Controller medications improve asthma control; however, medication adherence remains suboptimal, particularly among minorities. This study assessed socioeconomic, family-based, and parent factors in medication adherence among children with asthma from Rhode Island (RI; Latino and non-Latino white [NLW]) and Puerto Rico.

METHODS

Data collection occurred as part of a multicenter study of asthma disparities. Our sample included children (ages 7-16) prescribed objectively monitored controller medications (n = 277; 80 island Puerto Rico, 114 RI Latino, 83 RI NLW). Parents completed questionnaires regarding family background and beliefs about medications. Families participated in an interview regarding asthma management. Multilevel analyses (maximum likelihood estimates) accounting for children being nested within site and ethnic group assessed the contribution of social context, family, and parent variables to medication adherence.

RESULTS

Medication adherence differed by ethnic group (F(2, 271) = 7.46, P < .01), with NLW families demonstrating the highest levels of adherence. Multilevel models indicated that parental beliefs about medication necessity and family organization regarding medication use were significant predictors of adherence, even for families below the poverty threshold. With family factors in the model, a substantial improvement in model fit occurred (Akaike Information Criterion change of 103.45).

CONCLUSIONS

Adherence to controller medications was lower among Latino children in our sample. Targeted interventions that capitalize on existing family resources, emphasize structure, and address parental beliefs about the importance of medications may be of benefit to families from different cultural backgrounds.

Cross-site evaluation of a comprehensive pediatric asthma project: the Merck Childhood Asthma Network, Inc. (MCAN)

The Merck Childhood Asthma Network, Inc. (MCAN) initiative selected five sites that had high asthma burden and established asthma programs but were ready for greater program integration across schools, health care systems, and communities. MCAN supported a community-based approach that was tailored to the needs of each program site. As a result, each site was unique in its combination of interventions, but all sites served common goals of integration of care, incorporation of evidence-based programs, and improvement in knowledge, self-management, health, and quality of life. This case study of the MCAN cross-site evaluation discusses the challenges associated with evaluating interventions involving multiple stakeholders that have been adjusted to fit the unique needs of specific communities. The evaluation triangulates data from site-specific monitoring and evaluation data; site documents, site visits, and cross-site meetings; qualitative assessments of families, organizational partners, and other stakeholders; and quantitative data from a common instrument on health indicators before and after the intervention. The evaluation employs the RE-AIM framework--reach, effectiveness, adoption, implementation, and maintenance--to assess the barriers and facilitators of translation from theory into practice. Our experience suggests trade-offs between rigor of evaluation and burden of assessment that have applicability for other community-based translational efforts.

Improving parental adherence with asthma treatment guidelines: a randomized controlled trial of an interactive website

BACKGROUND

Controllers are underprescribed for children with asthma, and when they are, adherence is suboptimal. We sought to test whether an interactive website grounded in social cognitive theory can improve the dispensing of controller medications and adherence with them where indicated.

METHODS

Randomized controlled trial. Parents of eligible patients were randomized to be prompted to assess their child's asthma each month for 6 months and receive tailored feedback on controller use and adherence strategies. For the next 6 months, participation in the site was optional. Outcomes were assessed at 6 and 12 months.

RESULTS

A total of 603 families were enrolled. At baseline, 176 (29%) children had mild-to-severe persistent asthma, whereas 71% of children met criteria for mild intermittent asthma. Among patients who should have been on controllers at baseline but were not, there was no statistically significant increase in controller prescriptions at 6 months (odds ratio [OR] 2.85; 95% confidence interval [95% CI] 0.63-14.04], P = .17). There was a trend to improved adherence with controllers among users at 6 months (OR 1.54, 95% CI 0.90-2.63, P = .10). Among patients who used controller medicine at both baseline and at 6 months, users in the intervention arm had significantly greater adherence than those in control arm at 6 months (OR 1.92; 95% CI 1.05-3.55; P = .02). For patients with persistent asthma at baseline and who were on controller medicine at both time points, patients in the intervention arm had significantly better adherence than those in the control arm at 6 months (OR 3.33; 95% CI 1.20-10.07, P = .01). However, there were no discernible differences at the 12-month assessment.

CONCLUSION

A tailored interactive website shows some benefit in improving controller medication adherence during a period of active intervention.

Asthma and the achievement gap among urban minority youth

OBJECTIVES

To outline the prevalence and disparities of asthma among school-aged urban minority youth, causal pathways through which poorly controlled asthma adversely affects academic achievement, and proven or promising approaches for schools to address these problems.

METHODS

Literature review.

RESULTS

Asthma is the most common chronic disease affecting youth in the United States; almost 10 million youth under 18 (14%) have received a diagnosis and 6.8 million (9%) have active asthma. Average annual prevalence estimates were approximately 45% higher for Black versus White children (12.8% vs. 8.8%), as were average annual estimates of asthma attacks (8.4% vs. 5.8%). Urban minority youth have highly elevated prevalence of poorly controlled asthma as evidenced by overuse of emergency departments and under-use of efficacious medications. Poorly controlled asthma has functional consequences on cognition, connectedness with school, and absenteeism. Exemplary asthma programs include management and support systems, school health and mental health services, asthma education, healthy school environments, physical education and activity, and coordination of school, family, and community efforts.

CONCLUSIONS

Asthma and, more importantly, poorly controlled asthma are highly and disproportionately prevalent among school-aged urban minority youth, has a negative impact on academic achievement through its effects on cognition, school connectedness, and absenteeism, and effective practices are available for schools to address this problem. To reduce the adverse effects of poorly controlled asthma on learning, a multifaceted approach to asthma control and prevention in which schools can and must play a central role is essential.

Pattern of asthma medication use among children from a large urban center in Brazil

PURPOSE

Despite the advances in asthma therapeutics, there are few data on the use and determinants of anti-asthmatic drugs in the general population of children. This study describes the use of asthma medications among children in the general population and in children with current asthma, living in a large urban center in Brazil.

METHODS

A population-based cross-sectional survey, aimed at analyzing asthma determinants, was conducted with 1,382 children aged 4-11 years, between February and May 2006, in Salvador, Brazil. At baseline, an extensive questionnaire was applied, including questions about the use of asthma medications in the last 12 months.

RESULTS

In all studied children (n = 1,382) aged 4-11 years, oral beta2-agonists were the drugs most frequently used (9.8%), followed by short-acting inhaled beta2-agonists (4.3%) and systemic corticosteroids (1.6%). Anti-asthmatic drug use was higher among males than females, and it significantly decreased with age in both genders. A total of 312 children (22.6%) reported current asthma, and 62% of them were not being treated with any anti-asthmatic drugs. Of all those who reported following a certain type of treatment, 20% used oral beta2-agonists alone; 6.1%, short-acting inhaled beta2-agonists alone; and 4.8%, a combination of both drugs. Anti-asthmatic drug use did not differ according to socioeconomic status, except for the use of inhaled beta2-agonists and systemic corticosteroids.

CONCLUSIONS

An overwhelming majority of asthmatic children were not using long-term medications for asthma, in particular inhaled corticosteroids, regardless of the severity of their disease. This result points to the deficiencies of the Brazilian public health system in recognizing this important pharmacological need for child care and thereby limiting the access of these children to a group of efficacious, available, and low risk therapeutic medications.

A simulation model approach to analysis of the business case for eliminating health care disparities

BACKGROUND

Purchasers can play an important role in eliminating racial and ethnic disparities in health care. A need exists to develop a compelling "business case" from the employer perspective to put, and keep, the issue of racial/ethnic disparities in health care on the quality improvement agenda for health plans and providers.

METHODS

To illustrate a method for calculating an employer business case for disparity reduction and to compare the business case in two clinical areas, we conducted analyses of the direct (medical care costs paid by employers) and indirect (absenteeism, productivity) effects of eliminating known racial/ethnic disparities in mammography screening and appropriate medication use for patients with asthma. We used Markov simulation models to estimate the consequences, for defined populations of African-American employees or health plan members, of a 10% increase in HEDIS mammography rates or a 10% increase in appropriate medication use among either adults or children/adolescents with asthma.

RESULTS

The savings per employed African-American woman aged 50-65 associated with a 10% increase in HEDIS mammography rate, from direct medical expenses and indirect costs (absenteeism, productivity) combined, was $50. The findings for asthma were more favorable from an employer point of view at approximately $1,660 per person if raising medication adherence rates in African-American employees or dependents by 10%.

CONCLUSIONS

For the employer business case, both clinical scenarios modeled showed positive results. There is a greater potential financial gain related to eliminating a disparity in asthma medications than there is for eliminating a disparity in mammography rates.

Medication use patterns among urban youth participating in school-based asthma education

Although pharmaceutical management is an integral part of asthma control, few community-based analyses have focused on this aspect of disease management. The primary goal of this analysis was to assess whether participation in the school-based Kickin' Asthma program improved appropriate asthma medication use among middle school students. A secondary goal was to determine whether improvements in medication use were associated with subsequent improvements in asthma-related symptoms among participating students. Students completed an in-class case-identification questionnaire to determine asthma status. Eligible students were invited to enroll in a school-based asthma curriculum delivered over four sessions by an asthma health educator. Students completed a pre-survey and a 3-month follow-up post-survey that compared symptom frequency and medication use. From 2004 to 2007, 579 participating students completed pre- and post-surveys. Program participation resulted in improvements in appropriate use across all three medication use categories: 20.0% of students initiated appropriate reliever use when "feeling symptoms" (p < 0.001), 41.6% of students reporting inappropriate medication use "before exercise" initiated reliever use (p < 0.001), and 26.5% of students reporting inappropriate medication use when "feeling fine" initiated controller use (p < 0.02). More than half (61.6%) of participants reported fewer symptoms at post-survey. Symptom reduction was not positively associated with improvements in medication use in unadjusted and adjusted analysis, controlling for sex, asthma symptom classification, class attendance, season, and length of follow-up. Participation in a school-based asthma education program significantly improved reliever medication use for symptom relief and prior-to-exercise and controller medication use for maintenance. However, given that symptom reduction was not positively associated with improvement in medication use, pharmaceutical education must be just one part of a comprehensive asthma management agenda that addresses the multifactorial nature of asthma-related morbidity.

Ecological barriers and social forces in childhood asthma management: examining routines of African American families living in the inner city

OBJECTIVE

Asthma affects African American children at unprecedented rates. Researchers have examined the context in which African American families live and experience illness, and suggest that ecological barriers contribute to poor health. In this paper, the authors examine the social forces underlying these ecological barriers and what African American parents living in the inner city do to manage their children's asthma amidst these challenges.

METHODS

African American parents of children aged 5 to 12 years diagnosed with persistent asthma living in the inner city were interviewed using a semistructured interview guide. Grounded theory analysis identified recurrent themes in the interview data.

FINDINGS

Parents identified four adaptive routines they use to manage their children's asthma: ( 1 ) give young children with asthma responsibility for medication use; ( 2 ) monitor the availability of the school nurse; ( 3 ) manage air quality; and ( 4 ) frequently clean the home. These routines are described as adaptive because parents navigate ecological barriers and social forces within their daily context to manage their children's asthma.

IMPLICATIONS

The authors argue that the first step in reducing the impact of ecological barriers is understanding African Americans' sociohistorical context.

GSNO reductase and beta2-adrenergic receptor gene-gene interaction: bronchodilator responsiveness to albuterol

BACKGROUND

Short-acting inhaled beta2-agonists such as albuterol are used for bronchodilation and are the mainstay of asthma treatment worldwide. There is significant variation in bronchodilator responsiveness to albuterol not only between individuals but also across racial/ethnic groups. The beta2-adrenergic receptor (beta2AR) is the target for beta2-agonist drugs. The enzyme, S-nitrosoglutathione reductase (GSNOR), which regulates levels of the endogenous bronchodilator S-nitrosoglutathione, has been shown to modulate the response to beta2-agonists.

OBJECTIVE

We hypothesized that there are pharmacogenetic interactions between GSNOR and beta2AR gene variants that are associated with variable response to albuterol.

METHODS

We performed family-based analyses to test for association between GSNOR gene variants and asthma and related phenotypes in 609 Puerto Rican and Mexican families with asthma. In addition, we tested these individuals for pharmacogenetic interaction between GSNOR and beta2AR gene variants and responsiveness to albuterol using linear regression. Cell transfection experiments were performed to test the potential effect of the GSNOR gene variants.

RESULTS

Among Puerto Ricans, several GSNOR SNPs and a haplotype in the 3'UTR were significantly associated with increased risk for asthma and lower bronchodilator responsiveness (P=0.04-0.007). The GSNOR risk haplotype affects expression of GSNOR mRNA and protein, suggesting a gain of function. Furthermore, gene-gene interaction analysis provided evidence of pharmacogenetic interaction between GSNOR and beta2AR gene variants and the response to albuterol in Puerto Rican (P=0.03), Mexican (P=0.15) and combined Puerto Rican and Mexican asthmatics (P=0.003). Specifically, GSNOR+17059*beta2AR+46 genotype combinations (TG+GG*AG and TG+GG*GG) were associated with lower bronchodilator response.

CONCLUSION

Genotyping of GSNOR and beta2AR genes may be useful in identifying Latino individuals, who might benefit from adjuvant therapy for refractory asthma.

Influences on adherence to pediatric asthma treatment: a review of correlates and predictors

Nonadherence to treatment is an important influence on the health outcomes of children and adolescents with pediatric asthma, which is the most prevalent childhood chronic illness. Because the factors that influence treatment adherence for pediatric asthma are not well understood, a comprehensive review of relevant research is needed. To address this need, research concerning the correlates and predictors of adherence to inhaled corticosteroid treatment for pediatric asthma was reviewed. Significant predictors and correlates of treatment adherence identified in this review were consistent with a conceptual model that included family demographic characteristics and functioning, parent and child characteristics, health care system and provider characteristics, and child health outcomes. Family functioning and parental beliefs about asthma and medication treatment demonstrated consistent relationships with treatment adherence. Future research should test multivariate models of influences on treatment adherence in pediatric asthma in prospective studies using reliable and valid measures of predictors and outcomes. Intervention studies are also needed that target potentially modifiable, empirically supported influences to enhance treatment adherence. The clinical management of pediatric asthma would be enhanced by routine assessment of barriers to treatment adherence and anticipatory interventions that address them to prevent nonadherence.

The Impact of Childhood Asthma on Parental Quality of Life

Measuring the quality of life of caregivers is important for interventions designed for young children with asthma. However, little is known about the impact of childhood asthma on parental quality of life for certain subgroups. This study included the families of young urban children with mild persistent to severe persistent asthma. The goal was to evaluate the relationship between caregivers' quality of life and the children's asthma severity, and to consider the influence of sociodemographic factors on the caregivers' quality of life. Children age 3-7 years (63% male, 59% Black, 75% Medicaid), with mild persistent to severe persistent asthma, were identified from a school-based screening survey. Caregiver quality of life was assessed at baseline and at the end of the study using the Paediatric Asthma Caregiver's Quality of Life Questionnaire (PACQLQ). Pearson correlation coefficients were used to assess the relationship between the PACQLQ and parent-reported asthma symptoms during the same time period. For all measures of severity, there was a significant correlation with quality of life (range r=0.23-0.51, all p<.01). Improvements in the PACQLQ correlated with decreases in symptom scores including symptom days (r=-0.27, p<.001) and symptom nights (r=-0.22, p=.005). In a multivariate model, Hispanic ethnicity, the use of daily maintenance medications, and exposure to secondhand smoke independently predicted worse quality of life scores. We conclude that the caretaker's quality of life, as assessed by the PACQLQ, is directly influenced by the child's asthma severity as well as other family factors among a group of young urban children with significant asthma.

Do school-based asthma education programs improve self-management and health outcomes?

CONTEXT

Asthma self-management education is critical for high-quality asthma care for children. A number of studies have assessed the effectiveness of providing asthma education in schools to augment education provided by primary care providers.

OBJECTIVE

To conduct a systematic review of the literature on school-based asthma education programs.

METHODS

As our data sources, we used 3 databases that index peer-reviewed literature: MEDLINE, the Cochrane Central Register of Controlled Trials, and the Cumulative Index to Nursing and Allied Health Literature. Inclusion criteria included publication in English and enrollment of children aged 4 to 17 years with a clinical diagnosis of asthma or symptoms consistent with asthma.

RESULTS

Twenty-five articles met the inclusion criteria. Synthesizing findings across studies was difficult because the characteristics of interventions and target populations varied widely, as did the outcomes assessed. In addition, some studies had major methodologic weaknesses. Most studies that compared asthma education to usual care found that school-based asthma education improved knowledge of asthma (7 of 10 studies), self-efficacy (6 of 8 studies), and self-management behaviors (7 of 8 studies). Fewer studies reported favorable effects on quality of life (4 of 8 studies), days of symptoms (5 of 11 studies), nights with symptoms (2 of 4 studies), and school absences (5 of 17 studies).

CONCLUSIONS

Although findings regarding effects of school-based asthma education programs on quality of life, school absences, and days and nights with symptoms were not consistent, our analyses suggest that school-based asthma education improves knowledge of asthma, self-efficacy, and self-management behaviors.

Formulary coverage for lipid-lowering drugs recommended for children

OBJECTIVE/METHODS

A cross-sectional assessment to describe availability, coverage, and pediatric labeling status of lipid-lowering drugs offered by 1 private and 1 public insurance plan formularies.

RESULTS

Both insurance plans had equal medication availability of bile acid sequestrants (7), statins (10), and cholesterol-absorption blockers (CAB; 1). The private plan had 3 bile acid sequestrants and 3 statins listed as preferred drugs; the CAB was not preferred. In contrast, the public plan had 5 bile acid sequestrants, 7 statins, and the CAB as preferred drugs. For medications with pediatric labeling, the private plan covered 50% as preferred drugs whereas the public plan covered 70% as preferred drugs.

CONCLUSIONS

If new recommendations of the American Academy of Pediatrics for treatment of dyslipidemia in children were implemented today, children with the public plan would have equal choice but better coverage of lipid-lowering drugs as preferred drugs, including those with FDA approval, compared with children with the private plan.

The role of parent health literacy among urban children with persistent asthma

Health literacy (HL) affects adult asthma management, yet less is known about how parent HL affects child asthma care.

OBJECTIVE

To examine associations between parent HL and measures related to child asthma.

METHODS

Parents of 499 school-age urban children with persistent asthma in Rochester, New York completed home interviews.

MEASURES

the Rapid Estimate of Adult Literacy in Medicine (REALM) for parent HL; National Heart Lung and Blood Institute (NHLBI) criteria for asthma severity, and validated measures of asthma knowledge, beliefs, and experiences.

ANALYSES

bivariate and multivariate analyses of associations between parent HL measures related to child asthma.

RESULTS

Response rate: 72%, mean child age: 7.0 years. Thirty-two percent had a Hispanic parent; 88% had public insurance. Thirty-three percent had a parent with limited HL. Low parent HL was independently associated with greater parent worry, parent perception of greater asthma burden, and lower parent-reported quality of life. MEASURES of health care use (e.g., emergency care and preventive medicines) were not associated with parent HL.

CONCLUSIONS

Parents with limited HL worried more and perceived greater overall burden from the child's asthma, even though reported health care use did not vary.

PRACTICE IMPLICATIONS

Improved parent understanding and provider-parent communication about child asthma could reduce parent-perceived asthma burden, alleviate parent worry, and improve parent quality of life.

Medical management of children with primary hypertension by pediatric subspecialists

Our aim was to characterize medical management of children with primary hypertension (HTN) by pediatric subspecialists. We performed a medical-record review of children < or = 18 years with primary HTN seen at pediatric cardiology or pediatric nephrology clinics at an academic center. Main outcomes were whether treatment decision was in agreement with national guidelines, whether an antihypertensive medication was prescribed, and medication choice. One hundred and eighty children had > or = 1 visit to a pediatric cardiology or nephrology clinic. The majority (83%) of children were pharmacologically managed according to national guidelines. However, only 1/3 children with stage 2 HTN received appropriate antihypertensive therapy from either subspecialty. Only 26 children were prescribed an antihypertensive drug. Children evaluated by pediatric nephrologists were fourfold more likely to receive an antihypertensive than children seen by pediatric cardiologists (29% vs. 7%; p < 0.001). However, all antihypertensive prescriptions were prescribed according to guidelines by both subspecialties. Medical management of children with primary HTN by pediatric cardiologists and pediatric nephrologists is largely consistent with guidelines. However, initiation of appropriate antihypertensive drugs for children with highest severity of HTN is equally poor for both subspecialties. Future studies should explore the factors underlying physicians' reluctance to initiate recommended chronic pharmacologic therapy in children and its associated outcomes.

Socioeconomic factors and asthma control in children

OBJECTIVES

The objective of this study was to evaluate the association between socioeconomic factors and asthma control in children, as defined by the Canadian Pediatric Asthma Consensus Guidelines.

PATIENTS AND METHODS

Cross-sectional data from a completed study of 879 asthmatic children between the ages of 1 and 18 residing in the Greater Toronto Area were used. The database included data on demographics, health status, asthma control, and health-related quality of life. Stepwise forward modeling multiple regression was used to investigate the impact of socioeconomic status on asthma control, based on six control parameters from the 2003 Canadian Pediatric Asthma Consensus Guidelines.

RESULTS

Only 11% of patients met the requirements for acceptable control, while 20% had intermediate control, and 69% had unacceptable asthma control. Children from families in lower income adequacy levels had poorer control.

CONCLUSIONS

Disparities in asthma control between children from families of different socio-economic strata persist, even with adjustment for utilization of primary care services and use of controller medications.

Effectiveness of an asthma management program in reducing disparities in care in urban children

OBJECTIVE

To examine differences in the effectiveness of a program to reduce use of health care services in urban-dwelling black and Hispanic children as a way to understand the origins of disparities.

METHODS

We examined hospitalization rates, emergency department (ED) visits, outpatient visits (OPVs), and bronchodilator and inhaled corticosteroid (ICS) prescriptions in 2,362 children receiving Medicaid who were enrolled in an asthma management program (Easy Breathing) from June 1, 1998, through May 31, 2001. We used generalized estimating equations to fit multivariate marginal Poisson regression models, controlling for sex, ethnicity, asthma severity, and secular trends.

RESULTS

Hospitalization rates were high and decreased 53% for black children and 33% for Hispanic children after the intervention. The ED visits decreased for Hispanic children, and OPVs decreased for both black and Hispanic children after Easy Breathing. The ICS prescription rates increased, with a decrease in the bronchodilator to ICS ratio from 5.81 to 2.16 in black children and from 4.74 to 2.17 in Hispanic children. Hispanic children filled more prescriptions for bronchodilators and ICSs (odds ratio, 1.29; 95% confidence interval, 1.05-1.59; P = .01; and odds ratio, 1.55; 95% confidence interval, 1.14-2.11; P = .005; respectively) 3 and 12 months after Easy Breathing. Black children were more likely than Hispanic children not to fill any asthma prescription. A total of 12% of children filled no asthma prescriptions.

CONCLUSIONS

Hispanic children seek more medical services than black children, whereas black children fill fewer prescriptions for bronchodilators and ICSs than Hispanic children. Easy Breathing reduces overall hospitalizations and OPVs in black and Hispanic children and asthma-specific ED visits in Hispanic children; the benefits of Easy Breathing are different in Hispanic and black children.

Can equal access to care eliminate racial disparities in pediatric asthma outcomes?

A survey was given to the parents of 80 children with asthma between the ages of 3 and 18 years at the Pediatric Pulmonology Clinics of three military treatment facilities to evaluate asthma management and outcomes for different racial groups. Results demonstrated that management practices for the three groups were similar and that there were no significant differences in emergency department visits, prescription of oral steroids, or in the number of hospitalizations across the three groups. These findings suggest that equal access to care may allow children of different racial backgrounds to receive similar asthma care and achieve similar outcomes.

Health disparities in the United States: childhood asthma

During the last 3 decades, asthma prevalence and morbidity in the United States have dramatically increased. The impact of this chronic respiratory disease has been disproportionately high among inner city residents, particularly lower socioeconomic groups, ethnic minorities, and children. A wide variety of factors have been shown to have an influence-indeed, the asthma epidemic is a chronicle of the ways in which environmental, social, and economic factors superimposed on inadequate health care delivery systems can converge to influence health status and the course of a chronic disease. Effective intervention strategies for this controllable disease must circumvent existing societal barriers to care and provide a comprehensive, structured program that emphasizes asthma controller therapy, disease-specific education, and regular periodic assessment of asthma control, preferably in a convenient, familiar setting that promotes patient engagement.

Improving care for urban children with asthma: design and methods of the School-Based Asthma Therapy (SBAT) trial

The School Based Asthma Therapy (SBAT) trial builds on a pilot study in which we found that school-based administration of preventive asthma medications for inner-city children reduced asthma symptoms. However, the beneficial effects of this program were seen only among children not exposed to environmental tobacco smoke (ETS). The current study is designed to establish whether this intervention can be enhanced by more stringent adherence to asthma guidelines through the addition of symptom-based medication dose adjustments, and whether smoke-exposed children benefit from the intervention when it is combined with an ETS reduction program. The intervention consists of both administration of preventive asthma medications in school (with dose adjustments according to NHLBI guidelines) and a home-based ETS reduction program utilizing motivational interviewing principles. This paper describes the methodology, conceptual framework, and lessons learned from the SBAT trial. Results of this study will help to determine whether this type of comprehensive school-based program can serve as a model to improve care for urban children and reduce disparities.

The impact of health insurance gaps on access to care among children with asthma in the United States

BACKGROUND

Health insurance coverage is important to help assure children appropriate access to medical care and preventive services. Insurance gaps could be particularly problematic for children with asthma, since appropriate preventive care for these children depends on frequent, consistent contacts with health care providers.

OBJECTIVE

The aim of this study was to determine the association between insurance gaps and access to care among a nationally representative sample of children with asthma.

METHODS

The National Survey of Children's Health provided parent-report data for 8097 children with asthma. We identified children with continuous public or continuous private insurance and defined 3 groups with gaps in insurance coverage: those currently insured who had a lapse in coverage during the prior 12 months (gained insurance), those currently uninsured who had been insured at some time during the prior 12 months (lost insurance), and those with no health insurance at all during the prior 12 months (full-year uninsured).

RESULTS

Thirteen percent of children had coverage gaps (7% gained insurance, 4% lost insurance, and 2% were full-year uninsured). Many children with gaps in coverage had unmet needs for care (7.4%, 12.8%, and 15.1% among the gained insurance, lost insurance, and full-year uninsured groups, respectively). In multivariate models, we found significant associations between insurance gaps and every indicator of poor access to care among this population.

CONCLUSIONS

Many children with asthma have unmet health care needs and poor access to consistent primary care, and lack of continuous health insurance coverage may play an important role. Efforts are needed to ensure uninterrupted coverage for these children.

The environment and asthma in US inner cities

Poor, minority children living in US inner cities have increased rates of asthma morbidity and mortality. Factors that contribute to these increased rates are varied and complex, with current evidence suggesting that the environment is an important causative factor. Respiratory morbidity is often the result of allergens and air pollutants. Additionally, for children living in urban environments, underlying societal susceptibility factors specific to the inner city serve to increase asthma morbidity. Even though ambient pollutants have been declining in US cities, asthma morbidity and mortality rates have been increasing. Indoor pollutants are closely linked to increased asthma prevalence and morbidity. While the understanding of environmental influences is still relatively limited, we can say that indoor exposures are more important than ambient pollutants, and we know that bioaerosols containing allergenic proteins are especially important. Additionally, certain particulate aerosols and ozone cause inflammation individually and may act synergistically to enhance the acute and chronic IgE-mediated inflammation. The purpose of this article is to review the data relating exposure to environmental pollutants and airborne allergens, and the relationship of this exposure to asthma prevalence and morbidity in order to inform plans for public health programs to reduce an asthma burden.

Ethnic-specific differences in bronchodilator responsiveness among African Americans, Puerto Ricans, and Mexicans with asthma

Socioeconomic and environmental differences do not fully explain differences in asthma prevalence, morbidity, and mortality among Puerto Ricans, African Americans, and Mexican Americans. Differences in response to albuterol may be a factor. We compared bronchodilator responsiveness between these three populations. All groups demonstrated below expected responsiveness. Puerto Ricans of all ages and African American children with moderate-to-severe asthma demonstrated the lowest responsiveness overall. Among subjects with moderate-to-severe asthma, children were even less likely than adults to show the expected bronchodilator response. We conclude that ethnic-specific differences in bronchodilator drug responsiveness exist between Mexicans, Puerto Ricans, and African Americans with asthma. This may be of importance in asthma management.

Inadequate therapy and poor symptom control among children with asthma: findings from a multistate sample

OBJECTIVES

Asthma continues to cause significant morbidity in children. We hypothesized that many children still do not use recommended preventive medications, or they have ineffective symptom control despite preventive medication use. The aim of this study was 1) to describe the use of preventive medications among children with persistent asthma, 2) to determine whether children using preventive medications have adequate asthma control, and 3) to identify factors associated with poor control.

METHODS

The State and Local Area Integrated Telephone Survey (SLAITS) Asthma Survey provided parent-reported data for children aged <18 years with asthma from a random-digit dial survey implemented in Alabama, California, Illinois, and Texas. We focused this analysis on children with persistent symptoms and/or children using preventive asthma medications (N = 975). Children with inadequate therapy had persistent symptoms and no preventive medication use. Children with suboptimal control had persistent symptoms or > 1 attack in the previous 3 months despite preventive medication use; children in optimal control had intermittent symptoms, < or = 1 attack, and reported using preventive medication. Demographic and asthma-related variables were compared across groups.

RESULTS

Among children with persistent asthma, 37 per cent had inadequate therapy, 42.9 per cent had suboptimal control, and only 20.1 per cent had optimal control. In multivariate regression, black race (odds ratio [OR], 2.0; 95 percent confidence interval [CI] 1.1-3.5), Hispanic ethnicity (OR, 1.8; 95 per cent CI, 1.1-2.9), and discontinuous insurance status (OR, 2.4; 95 per cent CI, 1.4-4.3) were associated with inadequate therapy. Potential explanations for poor control included poor adherence, exposure to smoke and other triggers, and lack of written action plans.

CONCLUSIONS

Inadequate asthma therapy remains a significant problem. A newly highlighted concern is the substantial number of children experiencing poor symptom control despite reported use of preventive medications.

The impact of parents' medication beliefs on asthma management

BACKGROUND

Previous studies suggest a relationship between parental beliefs about asthma medications and medication adherence. It is not clear how parents' positive and negative feelings about medications interact to influence medication adherence.

OBJECTIVES

The objectives of this study were to describe parents' perceived need for and concerns about their child's asthma medications and to assess the weighted impact of these positive and negative beliefs on parent-reported adherence.

METHODS

We conducted a cross-sectional survey of parents of children with asthma in southeast Michigan; response rate was 71%. Children with reported use of a preventive asthma medication were included (n = 622). We used a validated Beliefs About Medications Questionnaire (2 subscales: necessity and concern) to assess parents' positive and negative attitudes about their child's medications. To measure how parents weigh these beliefs, we also calculated a necessity-concern differential score (difference between necessity and concern subscales). We used a 4-item parent-report scale to measure medication adherence.

RESULTS

The majority of children were nonminority. Overall, 72% of parents felt that their child's asthma medications were necessary, and 30% had strong concerns about the medications. For 77% of parents, necessity scores were higher than concern scores, and for 17%, concern exceeded necessity. Nonminority parents were more likely to have necessity scores exceed concern scores compared with minority parents (79% vs 68%). Mean adherence scores increased as the necessity-concern differential increased. In a multivariate mixed-model regression, a greater necessity-concern differential score and being nonminority predicted better adherence.

CONCLUSIONS

These findings confirm a relationship between medication beliefs and adherence among parents of children with asthma. A better understanding of parents' medication beliefs and their impact on adherence may help clinicians counsel effectively to promote adherence.

Medical services and prescription use for asthma and factors that predict inhaled corticosteroid use among African-American children covered by Medicaid

Many African-American children with asthma are inadequately treated with controller pharmacotherapy. We analyzed 2002 West Virginia Medicaid claims for 300 African-American children to determine demographic and health services use factors that predict inhaled corticosteroid (ICS) use. Approximately 38% of the children had a prescription claim for an ICS. Logistic regression showed a direct relationship between the number of claims for short-acting beta-agonists and oral corticosteroids and the likelihood of a child having a claim for an ICS. Children who used a controller agent other than an ICS also were more likely to have filled a prescription for an ICS. We conclude that children in our sample whose prescription use indicated more severe asthma were more likely to have used an ICS. Barriers to adequate pharmacotherapy for African-American children with asthma should be considered during the process of care.

Oral beta2-agonist use by preschool children with asthma in East and Central Harlem, New York

Although studies have documented underuse of controller medications and overuse of short-acting inhaled ss(2)-agonist among children with persistent asthma in disadvantaged communities, the persistence of oral ss(2)-agonist use in pediatric practice has not been studied since inhaled short-acting ss(2)-agonists became widespread. We describe medications used to treat asthma among children 3 to 5 years of age at 10 Head Start and other subsidized preschool centers in East and Central Harlem, New York City. We interviewed 149 parents/guardians of children who were identified as having probable asthma based on physician's diagnosis, persistent symptoms, hospitalization, and medication use. We classified 86 of the 149 children (58%) as having current persistent asthma. Only 15 of them (17%) were reported to have used controller medications at least 5 days/week in the last 4 weeks-only 2 of whom used inhaled corticosteroids. By contrast, 53 children (62%) used oral ss(2)-agonist in the last 4 weeks, often (72%) in conjunction with nebulized or inhaled short-acting ss(2)-agonist. Use of oral ss(2)-agonist was associated with more severe symptoms. This study documents the continued widespread use of oral ss(2)-agonist for treatment of children in a low-income community with high prevalence of asthma.

The pediatric asthma intervention: a comprehensive cost-effective approach to asthma management in a disadvantaged inner-city community

OBJECTIVE

To compare three pediatric asthma interventions for their impact on improving the health status of inner-city asthmatic children and in achieving cost savings.

STUDY DESIGN

A total of 212 children 1 to 16 years of age were randomized into three groups: group 1 (n = 74) received one individualized asthma education session; group 2 (n = 68) received reinforced asthma education; group 3 (n = 70) received reinforced asthma education plus case management. Asthma-related health resource utilization and cost were primary outcomes. The cost-benefit analysis sought to estimate the expected cost savings to the Illinois Department of Healthcare and Family Services (Medicaid administrator) associated with the intervention.

RESULTS

Participants in all three groups used significantly fewer emergency health care services in the follow-up year. Averaged across all three groups, the magnitudes of declines were substantial: 81% for hospitalizations, 69% for hospital days, 64% for emergency department visits, and 58% for clinic visits. Although there were no statistically significant differences between study groups for three of the four main outcome measures, group 3 participants consistently improved to the greatest degree. All three interventions were associated with considerable cost savings ranging from $4,021/child/year for group 1 to $4,503/child/year for group 3.

CONCLUSION

Asthma education with or without case management services enhances the health of children with asthma thereby reducing associated costs.

Pharmacy fill patterns in young urban children with persistent asthma

BACKGROUND

Medication adherence impacts healthcare utilization. Pharmacy records are useful to establish fill patterns.

OBJECTIVE

Use pharmacy records to establish medication patterns fill patterns for comparison to healthcare utilization. Methods. Pharmacy records of 175 children with persistent asthma were collected and compared to healthcare utilization.

RESULTS

Majority of subjects had significant healthcare utilization, low numbers of rescue medications, and poor controller medication fill rates. Those with more rescue medications had more healthcare utilization and more controller medications.

CONCLUSIONS

Pharmacy fill patterns demonstrate few rescue and/or controller medication fills. Those with more rescue medications reported increased healthcare utilization despite controller medications.

Asthma medication use in school-aged children

Using data from the 1996, 1998, and 2000 Medical Expenditure Panel Survey, this study assessed controller medication use in a national representative sample of school-aged children with persistent asthma. Children 5 to 17 years of age with persistent asthma were identified in accordance with the Health Employer Data and Information Set specifications. Nonuse of controllers and excess use of relievers were common. In addition, controller medications were significantly less likely to be purchased for younger children, black and Hispanic children, and white children whose mothers had at least a college education. Efforts to improve childhood asthma management are needed, especially for those children.

Symptom reporting in childhood asthma: a comparison of assessment methods

BACKGROUND

One barrier to receiving adequate asthma care is inaccurate estimations of symptom severity.

AIMS

To interview parents of children with asthma in order to: (1) describe the range of reported illness severity using three unstructured methods of assessment; (2) determine which assessment method is least likely to result in a "critical error" that could adversely influence the child's care; and (3) determine whether the likelihood of making a "critical error" varies by sociodemographic characteristics.

METHODS

A total of 228 parents of children with asthma participated. Clinical status was evaluated using structured questions reflecting National Asthma Education and Prevention Panel (NAEPP) criteria. Unstructured assessments of severity were determined using a visual analogue scale (VAS), a categorical assessment of severity, and a Likert scale assessment of asthma control. A "critical error" was defined as a parent report of symptoms in the lower 50th centile for each method of assessment for children with moderate-severe persistent symptoms by NAEPP criteria.

RESULTS

Children with higher severity according to NAEPP criteria were rated on each unstructured assessment as more symptomatic compared to those with less severe symptoms. However, among the children with moderate-severe persistent symptoms, many parents made a critical error and rated children in the lower 50th centile using the VAS (41%), the categorical assessment (45%), and the control assessment (67%). The likelihood of parents making a critical error did not vary by sociodemographic characteristics.

CONCLUSIONS

All of the unstructured assessment methods tested yielded underestimations of severity that could adversely influence treatment decisions. Specific symptom questions are needed for accurate severity assessments.

Treatment regimens and health care utilization in children with persistent asthma symptoms

This study evaluated the anti-inflammatory medication regimens in children with persistent asthma, determined their health care utilization patterns, and evaluated factors associated with failure to seek and/or receive appropriate treatment. Parents of 68% of children who qualified for anti-inflammatory medications by National Asthma Education and Prevention Program (NAEPP) guidelines reported their use. However, only 14% received an optimal regimen (mild intermittent symptoms), while 55% were still symptomatic despite reported medications (suboptimal regimen). Nearly half of symptomatic children did not have a health care visit; of those who did, 61% had no corrective action documented. Factors contributing to variations in regimen and utilization are discussed.

Partners in school asthma management: evaluation of a self-management program for children with asthma

The "Partners in School Asthma Management" program for inner-city elementary school children comprises (1) case finding; (2) linkage of school nurses, parents, and clinicians; (3) a computer-based tailored educational program; and (4) school environmental assessment and intervention. Case finding identified 1730 children in 60 elementary schools with probable asthma; 835 (96% Hispanic or African American) joined the study. Baseline, posttest, and follow-up measures of asthma knowledge, self-efficacy, and self-management behavior were obtained from the children, and data on symptoms, emergency department visits, and hospitalizations were obtained from their parents. The schools provided data on grades and absences. Each school had a baseline and follow-up environmental assessment. The children in the intervention group showed greater increases in knowledge, self-efficacy, and some aspects of self-management. No differences between groups were found in health status variables, school performance, attendance, or levels of environmental allergens in schools. In 15 schools, an enhanced intervention allowed children and their parents to meet with a project physician, develop an asthma action plan, and receive a 1-month supply of medication; the project physician then followed up with the child's community physician. Children participating in this enhanced intervention had better school performance and fewer absences than the comparison group. Overall, the program was effective in improving children's asthma self-management but not in improving their health status. While the case-finding, computer-based self-management training program and linkage system were successfully implemented, the program failed in creating needed changes in the medical (action plans by community physicians) and physical environments (reduced school allergen levels) of the children.

The efficacy of asthma case management in an urban school district in reducing school absences and hospitalizations for asthma

Pediatric asthma rates are reaching epidemic proportions, adversely affecting children's quality of life, educational potential, and health care costs, especially those in the inner city. This study evaluated the effectiveness of a school-based asthma case management (CM) approach with medically underserved inner-city children attending Memphis City schools. Fourteen elementary schools with high rates of asthma-related hospital utilization were grouped according to school size, percentage of children with asthma enrolled, and percentage of children eligible for free or reduced-price lunch. Schools were randomized to either a nurse CM intervention or a usual care (UC) condition. The CM group included 115 students; 128 students were in the UC group. A longitudinal design was used to follow students' progress. Students were primarily African-American children diagnosed with asthma. In CM schools, nurse case managers conducted weekly group sessions incorporating the Open Airways curriculum, followed up on students' school absences, and coordinated students' asthma care with families, school personnel, and medical providers. In UC schools, students received routine school nursing services. CM students had fewer school absences than their counterparts in UC schools (mean 4.38 vs 8.18 days, respectively) and experienced significantly fewer emergency department visits (p < .0001) and fewer hospital days (p < .05) than UC students. No such differences existed before program initiation. Replication and follow-up in year 2 showed continued significant improvements. School-based nurse CM can achieve significant improvements in school attendance and medical utilization.

Asthma management practices among children in Georgia

BACKGROUND

Asthma self-management, the involvement of patients or their caregivers in the management of their disease, reduces healthcare visits and costs. We assessed selected asthma self-management practices among a representative sample of children in Georgia to guide statewide asthma control programs.

METHODS

A random-digit-dialed telephone survey of 2,121 households with 3,896 children 17 years of age or younger was conducted. Primary caretakers were asked about asthma and medication use of their children. Child data were weighted according to the number of telephone lines in the household and to the 2000 Georgia Census population.

RESULTS

Approximately 10 percent of children in Georgia had asthma. Among children with asthma, 30 percent did not have regular asthma checkups and 66 percent did not have a written management plan; 19 percent filled 2 or more prescriptions per year for quick-relief medicine but did not take control medication. For children with asthma for whom tobacco exposure was a known trigger, 35 percent were exposed to tobacco smoke in the home.

CONCLUSIONS

Opportunities exist to improve self-management, pharmacotherapy, and exposure to triggers for children with asthma. These data can be used to guide organizations and agencies working to reduce the burden of asthma.

A randomized clinical trial of clinician feedback to improve quality of care for inner-city children with asthma

CONTEXT

Barriers impede translating recommendations for asthma treatment into practice, particularly in inner cities where asthma morbidity is highest.

METHODS

The purpose of this study was to test the effectiveness of timely patient feedback in the form of a letter providing recent patient-specific symptoms, medication, and health service use combined with guideline-based recommendations for changes in therapy on improving the quality of asthma care by inner-city primary care providers and on resultant asthma morbidity. This was a randomized, controlled clinical trial in 5- to 11-year-old children (n = 937) with moderate to severe asthma receiving health care in hospital- and community-based clinics and private practices in 7 inner-city urban areas. The caretaker of each child received a bimonthly telephone call to collect clinical information about the child's asthma. For a full year, the providers of intervention group children received bimonthly computer-generated letters based on these calls summarizing the child's asthma symptoms, health service use, and medication use with a corresponding recommendation to step up or step down medications. We measured the number and proportion of scheduled visits resulting in stepping up of medications, asthma symptoms (2-week recall), and health care use (2-month recall).

RESULTS

In this population, only a modest proportion of children whose symptoms warranted a medication increase actually had a scheduled visit to reevaluate their asthma treatment. However, in the 2-month interval after receipt of a step-up letter, 17.1% of the letters were followed by scheduled visits in the intervention group compared with scheduled visits 12.3% of the time by the control children with comparable clinical symptoms. Asthma medications were stepped up when indicated after 46.0% of these visits in the intervention group compared with 35.6% in the control group, and when asthma symptoms warranted a step up in therapy, medication changes occurred earlier among the intervention children. Among children whose medications were stepped up at any time during the 12-month study period, those in the intervention group experienced 22.1% fewer symptom days and 37.9% fewer school days missed. The intention-to-treat analysis showed no difference over the intervention year in the number of symptom days, yet there was a trend toward fewer days of limited activity and a significant decrease in emergency department visits by the intervention group compared with controls. This 24% drop in emergency department visits resulted in an intervention that was cost saving in its first year.

CONCLUSIONS

Patient-specific feedback to inner-city providers increased scheduled asthma visits, increased asthma visits in which medications were stepped up when clinically indicated, and reduced emergency department visits.

Differences in the prescription patterns of anti-asthmatic medications for children by pediatricians, family physicians and physicians of other specialties

BACKGROUND

Prescription patterns of anti-asthma medications in children vary among doctors in different disciplines and settings, and may reflect differences in treatment outcome. The purpose of this study was to analyze the prescribing patterns of anti-asthma drugs by pediatricians, family physicians and other practitioners.

METHODS

Data for a total of 225,537 anti-asthma prescriptions were collected from the National Health Insurance Research Database for the period from January 1, 2002 to March 31, 2002. These medications included inhaled and oral adrenergics, inhaled and oral corticosteroids, xanthine derivatives, and leukotriene receptor antagonists prescribed by general pediatricians, family physicians and physicians in other disciplines.

RESULTS

Oral beta2-agonist was the most commonly prescribed drug used as monotherapy, with prescription rates of 70.4%, 46.9% and 58.0% by pediatricians, family physicians and other physicians, respectively. A xanthine derivative was the next most commonly prescribed monotherapy. Oral corticosteroid combined with oral beta2-agonist, followed by oral beta2-agonist combined with a xanthine derivative were the two most commonly prescribed dual-agent combined therapies by all three physician categories. The prescription rate for inhaled corticosteroid monotherapy was 7.8% by pediatricians, 5.6% by family physicians, and 8.0% by other physicians. The prescription rate for inhaled adrenergic was the highest in family physicians (14.9%), followed by the other physicians (7.2%), and was lowest in pediatricians (3.1%).

CONCLUSION

Pediatricians and family physicians appeared to share similar opinions on the medical management of children with asthma in that both most commonly prescribed oral beta2-agonists and xanthine derivatives, either alone or in combination. Family physicians were least likely to prescribe an inhaled corticosteroid and most likely to prescribe an inhaled adrenergic agent.