Reduce Asthma Morbidity Research Articles

Correlations between oxidative balance score and female asthma among U.S. adults

In order to explore the association of oxidative balance score (OBS) with female asthma among U.S. adults, we applied multiple logistic regression models, restricted cubic spline, and subgroup analysis using a cross-sectional study from the National Health and Nutrition Examination Survey (NHANES). 17,582 female out of the 91,351 participants from 2001 to 2018 in NHANES were enrolled in the analysis and 2,795 female participants had asthma. In three models, the OBS was negatively associated with female asthma incidence with the odds ratios (OR) = 0.99. When comparing the ratio of Q2, Q3, and Q4 of OBS quartiles against the Q1 quartile, the adjusted OR with 95% confidence intervals (95%CI) were 0.88 (0.75–1.03), 0.84 (0.73–0.97), and 0.82 (0.70–0.96) respectively, with p < 0.01 in the all covariates adjusted models. The restricted cubic splines indicated a linear relationship between OBS and female asthma. Subgroup analysis revealed no significant interaction effects except in the smoke group (p < 0.001), and there was a significant difference in the former smoker with OR 0.97 (0.96–0.99). We observed that there is negative relationship between OBS score and female asthma incidence, which suggests OBS probably is a protective factor for female on-set asthma. According to the subgroup analysis, smoking should be recommended to reduce asthma morbidity.

Recent Insights into the Environmental Determinants of Childhood Asthma.

Ubiquitous environmental exposures, including ambient air pollutants, are linked to the development and severity of childhood asthma. Advances in our understanding of these links have increasingly led to clinical interventions to reduce asthma morbidity. We review recent work untangling the complex relationship between air pollutants, including particulate matter, nitrogen dioxide, and ozone and asthma, such as vulnerable windows of pediatric exposure and their interaction with other factors influencing asthma development and severity. These have led to interventions to reduce air pollutant levels in children's homes and schools. We also highlight emerging environmental exposures increasingly associated with childhood asthma. Growing evidence supports the present threat of climate change to children with asthma. Environmental factors play a large role in the pathogenesis and persistence of pediatric asthma; in turn, this poses an opportunity to intervene to change the course of disease early in life.

Collaborative Integration of Community Health Workers in Hospitals and Health Centers to Reduce Pediatric Asthma Disparities: A Quality Improvement Program Evaluation

To address pediatric asthma disparities on the South Side of Chicago, a community health worker (CHW) home visiting intervention was implemented collaboratively by academic institutions and community based health centers. This evaluation assessed the effectiveness of this longitudinal quality improvement CHW intervention in reducing asthma morbidity and healthcare utilization. All patients aged 2–18 who met the high-risk clinical criteria in outpatient settings or those who visited the ED due to asthma were offered the program. A within-subject study design analyzed asthma morbidity and healthcare utilization at baseline and follow-up. Multivariable mixed-effects regression models, adjusted for baseline demographic and asthma characteristics, were used to assess changes over time. Among 123 patients, the average age was 8.8 (4.4) years, and 89.3% were non-Hispanic black. Significant reductions were observed in the average daytime symptoms days (baseline 4.1 days and follow-up 1.6 days), night-time symptoms days (3.0 days and 1.2 days), and days requiring rescue medication (4.1 days and 1.6 days) in the past two weeks (all p < 0.001). The average number of emergency department visits decreased from 0.92 one year before to 0.44 one year after program participation, a 52% reduction (p < 0.001). No significant difference was found in hospital admissions. These results support the use of a collaborative approach to implement the CHW home visiting program as part of standard care for pediatric asthma patients in urban settings. This approach has the potential to reduce asthma disparities and underscores the valuable role of CHWs within the clinical care team.

Effect of the Telemedicine Enhanced Asthma Management Through the Emergency Department (TEAM-ED) Program on Asthma Morbidity: A Randomized Controlled Trial

ObjectiveTo test the effectiveness of a telemedicine-based program in reducing asthma morbidity among children who present to the emergency department (ED) for asthma, by facilitating primary care follow-up and promoting delivery of guideline-based care. Study DesignWe included children (3-12 years) with persistent asthma who presented to the ED for asthma, were then randomly assigned to Telemedicine Enhanced Asthma Management through the Emergency Department (TEAM-ED) or enhanced Usual Care (eUC). TEAM-ED included: 1) school-based telemedicine follow-ups, completed by a primary care provider, 2) “point-of-care” prompting to promote guideline-based care, and 3) an opportunity for two additional telemedicine follow-ups. The primary outcome was the mean number of symptom-free days (SFDs) over 2 weeks at 3, 6, 9, and 12 months. ResultsWe included 373 children from 2016 through 2021 (participation rate 68%; 54% Black, 32% Hispanic, 77% public insurance, mean age: 6.4 years). Demographic characteristics and asthma severity were similar between groups at baseline. Most (91%) TEAM-ED children had ≥1 telemedicine visit; 41% completed 3 visits. At 3 months, caregivers of children in TEAM-ED reported more follow-up visits (66%vs.48%, aOR:2.07 [1.28-3.33]), preventive asthma medication actions (90%vs.79%, aOR:3.28 [1.56-6.89]), and use of a preventive medication (82%vs.69%, aOR:2.716 [1.45-5.08]), compared with eUC. There was no difference between groups in medication adherence or asthma morbidity. When only pre-pandemic data were included, there was greater improvement in SFDs over time for children in TEAM-ED versus eUC. ConclusionsTEAM-ED significantly improved follow-up and preventive care after an ED visit for asthma. We also saw improved SFDs with pre-pandemic data. The lack of overall improvement in morbidity and adherence indicates the need for additional ongoing management support.

Association of a Housing Mobility Program With Childhood Asthma Symptoms and Exacerbations

Structural racism has been implicated in the disproportionally high asthma morbidity experienced by children living in disadvantaged, urban neighborhoods. Current approaches designed to reduce asthma triggers have modest impact. To examine whether participation in a housing mobility program that provided housing vouchers and assistance moving to low-poverty neighborhoods was associated with reduced asthma morbidity among children and to explore potential mediating factors. Cohort study of 123 children aged 5 to 17 years with persistent asthma whose families participated in the Baltimore Regional Housing Partnership housing mobility program from 2016 to 2020. Children were matched to 115 children enrolled in the Urban Environment and Childhood Asthma (URECA) birth cohort using propensity scores. Moving to a low-poverty neighborhood. Caregiver-reported asthma exacerbations and symptoms. Among 123 children enrolled in the program, median age was 8.4 years, 58 (47.2%) were female, and 120 (97.6%) were Black. Prior to moving, 89 of 110 children (81%) lived in a high-poverty census tract (>20% of families below the poverty line); after moving, only 1 of 106 children with after-move data (0.9%) lived in a high-poverty tract. Among this cohort, 15.1% (SD, 35.8) had at least 1 exacerbation per 3-month period prior to moving vs 8.5% (SD, 28.0) after moving, an adjusted difference of -6.8 percentage points (95% CI, -11.9% to -1.7%; P = .009). Maximum symptom days in the past 2 weeks were 5.1 (SD, 5.0) before moving and 2.7 (SD, 3.8) after moving, an adjusted difference of -2.37 days (95% CI, -3.14 to -1.59; P < .001). Results remained significant in propensity score-matched analyses with URECA data. Measures of stress, including social cohesion, neighborhood safety, and urban stress, all improved with moving and were estimated to mediate between 29% and 35% of the association between moving and asthma exacerbations. Children with asthma whose families participated in a program that helped them move into low-poverty neighborhoods experienced significant improvements in asthma symptom days and exacerbations. This study adds to the limited evidence suggesting that programs to counter housing discrimination can reduce childhood asthma morbidity.

Assessing asthma self-management education among US children with current asthma, Asthma Call-back Survey (ACBS) 2015–2017

Objective Asthma self-management education (AS-ME) is an effective strategy to help children with asthma achieve better asthma control and outcome. The objective of this study is to assess the association between the prevalence of receiving AS-ME curriculum components and sociodemographic characteristics among children with current asthma. Methods Behavioral Risk Factor Surveillance System, child Asthma Call-back Survey 2015–2017 aggregated data were used. Multivariable logistic regression models were used to assess associations of each AS-ME component question and sociodemographic characteristic, adjusting for sample weighting. Results Among 3,213 children with current asthma, 52% of children reported ever being given an asthma action plan by a doctor or other healthcare professional. After adjusting for other variables, boys and Non-Hispanic Black children were more likely to report being given an action plan (APR= 1.15[95% CI 1.00–1.32] and APR= 1.28[95% CI 1.07–1.54] respectively). Non-Hispanic Black (APR = 2.15 [95% CI 1.30–3.55]), non-Hispanic, other race (APR = 1.95 [95% CI1.04–3.66]), and Hispanic children (APR = 1.84 [95% CI 1.18–2.89]) were more likely to report taking a course to learn how to manage asthma than non-Hispanic White children. Hispanic children (40.8%) were more likely to report being advised to change home environment compared to non-Hispanic Whites (31.5%) (APR =1.28 [95% CI 1.01–1.63). Conclusion The prevalence of some elements of asthma-self management education was relatively low and there were differences observed in the prevalence of receiving AS-ME by race/ethnicity, parental education, and income. Targeted implementation of asthma self-management components and interventions may improve asthma control and reduce asthma morbidity.

Standard patient training versus Vik-Asthme chatbot-guided training: ‘AsthmaTrain’ – a protocol for a randomised controlled trial for patients with asthma

IntroductionTherapeutic education for patients with asthma has been shown to reduce asthma morbidity. The high availability of smart phones provides the opportunity to furnish patient training via specifically designed chatbot...

Prevalence of Asthma amongst Schoolchildren in Jordan and Staff Readiness to Help.

Assessing asthma prevalence and management in schools is crucial. Improving school policies may reduce asthma morbidity and mortality. This study aimed to determine the prevalence of asthma among schoolchildren in Amman, Jordan. Second, we evaluated Jordanian school staff on asthma first-aid knowledge and competence. This cross-sectional study was conducted over five months in 2019. The researcher visited primary schools (private and public), and the availability of proper first-aid tools and teachers' knowledge were assessed. The participated schools included ten public schools with 100 participating teachers and ten private schools with 100 participating teachers. Less than 25% of all schools reported having an asthma first-aid kit, and 65% reported having medical reports for chronic diseases, including asthma. The mean number of students in the schools involved in the study was 455.31 ± 212.92, out of whom 10.38 ± 7.26 were asthmatic children. The prevalence of asthma was 2.38% among schoolchildren in Amman, Jordan. Schools were found to have insufficient medical reports for the asthma children, in addition to a lack of first aid kits. The asthma knowledge of teachers in schools was weak. There is a need for educators to develop more awareness. These findings shed light on important concerns that require immediate attention.

Effect of School Integrated Pest Management or Classroom Air Filter Purifiers on Asthma Symptoms in Students With Active Asthma: A Randomized Clinical Study

To determine if environmental control measures (1) school-wide integrated pest management (IPM) program and/or (2) use of high-efficiency particulate air (HEPA) filter purifiers in inner city elementary school classrooms would reduce asthma morbidity in students with active asthma.Forty-one inner city elementary schools in the Northeastern United States were recruited for this study. There were 236 students with active, physician-diagnosed asthma randomized to IPM (by school) and/or HEPA filter purifiers (by classroom). Physician-diagnosed asthma was defined as the child having had unscheduled doctor visits, hospitalization, corticosteroid bursts, symptoms, or controller medication use in the past year. Fifty seven percent of the children were Hispanic and 24% were Black. Mean age was 8.1 years, 48% female, mean FEV1 97% to 99.7% predicted at randomization. Forty-fifty percent of the children were using short acting β agonists alone and the rest were on inhaled corticosteroids and/or leukotriene modifiers. The study was conducted during the school years 2015 to 2020.All students with active physician-diagnosed asthma had a screening visit with questionnaires, skin testing, and spirometry as well as 2 follow-up visits with the same assessments during the year. Baseline environmental assessment for a panel of allergens (mouse, rat, dust mite, cockroach, cat, dog, Alternaria alternate, and Aspergillus fumigatus) were conducted at the schools by collecting a 1-week air sample, immediately followed by vacuum–settled dust samples from each students’ primary classroom and in the participants homes. The allergens were analyzed using a multiplex assay (MARIA, Indoor Biotechnologies). Follow-up environmental assessment after randomization took place once each winter and spring during the school year.The allocation to free standing classroom HEPA filter purifiers, active or sham, was blinded to the participants and those assessing the outcomes. The IPM program consisted of application of rodenticide, sealing entry points, trap placement, targeted cleaning, and brief educational handouts for the school staff. Infestation was assessed every 3 months and IPM reapplied as needed. Trained pest management specialists providing the school-wide IPM program were unblinded, but the student participants and trial investigators remained blinded throughout the trial.Four groups of 59 students each were randomized using a factorial design to either intervention alone, both interventions together, or neither for the entire school year. Classroom and home allergen and particle levels at randomization were balanced between the 4 groups.The asthma-related health outcomes of the students were assessed by parent survey at baseline and every 2 months until the end of the school year. The primary outcome was the number of symptom-days with asthma during a 2-week period assessed over the 10 months of randomization. Prespecified secondary outcomes were school absences, Composite Asthma Severity Index score, healthcare utilization, and spirometry measurements.Ninety eight percent of the classrooms had detectable levels of mouse allergen and 26% of the participants were sensitized to mouse allergen. More than 90% of baseline classroom allergen levels for cockroach, rat, Alternaria, Aspergillus and dust mite were undetectable.Use of the school-wide IPM program resulted in a mean of 1.5 symptom-days with asthma during a 2-week period versus 1.9 symptom-days for no IPM; use of HEPA filter purifiers resulted in a mean of 1.6 symptom-days with asthma versus 1.8 symptom-days for sham HEPA filter purifiers; neither comparison was statistically significant. Other prespecified secondary outcomes, including healthcare utilization or missed school days because of asthma also did not differ significantly between the intervention groups. The HEPA filter purifiers significantly reduced mouse and dog allergens in the classrooms. The IPM program did not significantly reduce concentrations of any of the allergens or particles measured. A post hoc exploratory analysis found a statistically significant association of reduction in asthma symptoms with the school wide IPM program but only for a limited time (mid-November to February).In an inner-city population of elementary school students with active asthma, use of a school-wide IPM program or HEPA filter purifiers in the classrooms did not significantly reduce symptom-days with asthma.It is possible that these children had asthma that was too mild to see a significant difference in these environmental interventions. Also unclear is whether resources to perform environmental control measures are best used at the school level or at home. As an accompanying editorial notes, “as allergen sensitization is related to the pathogenesis and pathophysiology of childhood asthma,” allergen avoidance should still be a basic tenet of treatment and worth continued investigation.URL: www.pediatrics.org/cgi/doi/10.1542/peds.10.1001/jama.2021.11559

The reality of managing asthma in sub-Saharan Africa – Priorities and strategies for improving care

Asthma is the most common non-communicable disease in children and remains one of the most common throughout the life course. The great majority of the burden of this disease is seen in low-income and middle-income countries (LMICs), which have disproportionately high asthma-related mortality relative to asthma prevalence. This is particularly true for many countries in sub-Saharan Africa. Although inhaled asthma treatments (particularly those containing inhaled corticosteroids) markedly reduce asthma morbidity and mortality, a substantial proportion of the children, adolescents, and adults with asthma in LMICs do not get to benefit from these, due to poor availability and affordability. In this review, we consider the reality faced by clinicians managing asthma in the primary and secondary care in sub-Saharan Africa and suggest how we might go about making diagnosis and treatment decisions in a range of resource-constrained scenarios. We also provide recommendations for research and policy, to help bridge the gap between current practice in sub-Saharan Africa and Global Initiative for Asthma (GINA) recommended diagnostic processes and treatment for children, adolescents, and adults with asthma.

EFFECTS OF IMPLEMENTING THE ASTHMA IMPAIRMENT AND RISK QUESTIONNAIRE (AIRQ) AND AN ASSOCIATED GUIDELINE-BASED ASSESSMENT TOOL ON CLINICAL DECISION-MAKING IN PRIMARY CARE

EFFECTS OF IMPLEMENTING THE ASTHMA IMPAIRMENT AND RISK QUESTIONNAIRE (AIRQ) AND AN ASSOCIATED GUIDELINE-BASED ASSESSMENT TOOL ON CLINICAL DECISION-MAKING IN PRIMARY CARE

Social Determinants of Health and At-Risk Rates for Pediatric Asthma Morbidity.

Compared with population-based rates, at-risk rates (ARRs) account for underlying variations of asthma prevalence. When applied with geospatial analysis, ARRs may facilitate more accurate evaluations of the contribution of place-based social determinants of health (SDOH) to pediatric asthma morbidity. Our objectives were to calculate ARRs for pediatric asthma-related emergency department (ED) encounters and hospitalizations by census-tract in Washington, the District of Columbia (DC) and evaluate their associations with SDOH. This population-based, cross-sectional study identified children with asthma, 2 to 17 years old, living in DC, and included in the DC Pediatric Asthma Registry from January 2018 to December 2019. ED encounter and hospitalization ARRs (outcomes) were calculated for each DC census-tract. Five census-tract variables (exposures) were selected by using the Healthy People 2030 SDOH framework: educational attainment, vacant housing, violent crime, limited English proficiency, and families living in poverty. During the study period, 4321 children had 7515 ED encounters; 1182 children had 1588 hospitalizations. ARRs varied 10-fold across census-tracts for both ED encounters (64-728 per 1000 children with asthma) and hospitalizations (20-240 per 1000 children with asthma). In adjusted analyses, decreased educational attainment was significantly associated with ARRs for ED encounters (estimate 12.1, 95% confidence interval [CI] 8.4 to 15.8, P <.001) and hospitalizations (estimate 1.2, 95% CI 0.2 to 2.2, P = .016). Violent crime was significantly associated with ARRs for ED encounters (estimate 35.3, 95% CI 10.2 to 60.4, P = .006). Place-based interventions addressing SDOH may be an opportunity to reduce asthma morbidity among children with asthma.

Childhood asthma and household exposures to nitrogen dioxide and fine particles: a triple-crossover randomized intervention trial

Objective Triple-crossover randomized controlled intervention trial to test whether reduced exposure to household NO2 or fine particles results in reduced symptoms among children with persistent asthma. Methods Children (n = 126) aged 5–11 years with persistent asthma living in homes with gas stoves and levels of NO2 15 ppb or greater recruited in Connecticut and Massachusetts (2015–2019) participated in an intervention involving three air cleaners configured for: (1) NO2 reduction: sham particle filtration and real NO2 scrubbing; (2) particle filtration: HEPA filter and sham NO2 scrubbing; (3) control: sham particle filtration and sham NO2 scrubbing. Air cleaners were randomly assigned for 5-week treatment periods using a three-arm crossover design. Outcome was number of asthma symptom-days during final 14 days of treatment. Treatment effects were assessed using repeated measures, linear mixed models. Results Measured NO2 was lower (by 4 ppb, p < .0001) for NO2-reducing compared to control or particle-reducing treatments. NO2-reducing treatment did not reduce asthma morbidity compared to control. In analysis controlling for measured NO2, there were 1.8 (95% CI −0.3 to 3.9, p = .10) fewer symptom days out of 14 in the particle-reducing treatment compared to control. Conclusions It remains unknown if using an air cleaner alone can achieve levels of NO2 reduction large enough to observe reductions in asthma symptoms. We observed that in small, urban homes with gas stoves, modest reductions in asthma symptoms occurred using air cleaners that remove fine particles. An intervention targeting exposures to both NO2 and fine particles is complicated and further research is warranted. Registration Number NCT02258893.

The influence of urban exposures and residence on childhood asthma.

Children with asthma who live in urban neighborhoods experience a disproportionately high asthma burden, with increased incident asthma and increased asthma symptoms, exacerbations, and acute visits and hospitalizations for asthma. There are multiple urban exposures that contribute to pediatric asthma morbidity, including exposure to pest allergens, mold, endotoxin, and indoor and outdoor air pollution. Children living in urban neighborhoods also experience inequities in social determinants of health, such as increased poverty, substandard housing quality, increased rates of obesity, and increased chronic stress. These disparities then in turn can increase the risk of urban exposures and compound asthma morbidity as poor housing repair is a risk factor for pest infestation and mold exposure and poverty is a risk factor for exposure to air pollution. Environmental interventions to reduce in‐home allergen concentrations have yielded inconsistent results. Population‐level interventions including smoking bans in public places and legislation to decrease traffic‐related air pollution have been successful at reducing asthma morbidity and improving lung function growth. Given the interface and synergy between urban exposures and social determinants of health, it is likely population and community‐level changes will be needed to decrease the excess asthma burden in children living in urban neighborhoods.

Reduced asthma morbidity during COVID-19 in minority children: is medication adherence a reason?

Objectives Asthma control improved during the COVID-19 pandemic. This study examined objectively measured medication adherence, asthma morbidity and quality of life (QoL) outcomes in Black and Latinx children by month for January-June 2019 (pre-COVID) compared to January-June 2020 (including first peak of COVID). Methods Secondary analyses of 94 children with asthma (ages 10–17 years, 64% Latinx, 36% Black) and their caregivers assigned to the comparison group of a longitudinal RCT intervention trial. Outcomes included mean aggregate electronic adherence for controller medications, oral steroid bursts, acute healthcare utilization, caregiver asthma QoL, and the Asthma Control Test. Repeated measures analyses were conducted due to multiple observations. Results Adherence to controller medications declined 48% from 2019 to 2020 (LS Mean = 33.9% vs. 17.6%, p=.0004, f=.92) with levels reaching a low in May 2020. A reduction in steroid bursts was observed over the same timeframe, 1.29 vs. 0.61, p = 0.006, f=.63. Caregiver QoL increased from 2019 to 2020 on total score (5.18 vs. 5.85, p = 0.002, f=.72), activity limitations (5.04 vs. 5.95), and emotional functioning (5.26 vs. 5.80). Although not statistically significant, a clinically meaningful 62% reduction in acute healthcare visits (p = 0.15) was reported in 2020. Children reported better asthma control (OR = 1.47, 95% CI 1.24, 1.73, p < 0.0001) in 2020 versus 2019 driven by improvements from May to June 2020. Conclusions Decreased asthma morbidity in minority children during COVID was coupled with decreased adherence to controller medications. This observed decrease in morbidity is not explained by improvements in adherence.

Randomized trial of a portable HEPA air cleaner intervention to reduce asthma morbidity among Latino children in an agricultural community

BackgroundData on pediatric asthma morbidity and effective environmental interventions in U.S. agricultural settings are few. We evaluated the effectiveness of HEPA air cleaners on asthma morbidity among a cohort of rural Latino children.MethodsSeventy-five children with poorly controlled asthma and living in non-smoking homes were randomly assigned to asthma education alone or along with HEPA air cleaners placed in their sleeping area and home living room. The Asthma Control Test (ACT) score, asthma symptoms in prior 2 weeks, unplanned clinical utilization, creatinine-adjusted urinary leukotriene E4 (uLTE4 [ng/mg]), and additional secondary outcomes were evaluated at baseline, six, and 12 months. Group differences were assessed using multivariable-adjusted generalized estimating equations. Incident rate ratios of ever experiencing the metrics of poorer asthma health during follow-up (suboptimal asthma management) were estimated using Poisson regression models in secondary analysis.ResultsMean child age was 9.2 and 8.6 years in intervention and control groups, respectively, and two-thirds of participants were male. Primary analysis of repeated measures of ACT score did not differ between groups (HEPA group mean change compared to controls 10% [95% CI: − 12-39%]). A suggestion of greater decrease in uLTE4 (ng/mg creatinine) was observed (− 10% [95% CI: − 20 -1%]). Secondary analysis showed children with HEPAs were less likely to have an ACT score meeting a clinically defined cutoff for poorly controlled asthma using repeated measures (IRR: 0.45 [95% CI: 0.21–0.97]). In Poisson models, intervention participants had reduced risk of ever meeting this cutoff (IRR: 0.43 [95% CI: 0.21–0.89]), ever having symptoms in the past 2 weeks (IRR: 0.71 [95% CI: 0.52–0.98]), and lower risk of any unplanned clinical utilization (IRR: 0.35 [95% CI: 0.13–0.94]) compared to control participants.DiscussionThe HAPI study showed generally improved outcomes among children in the HEPA air cleaner group. However, primary analyses did not meet statistical significance and many outcomes were subjective (self-report) in this unblinded study, so findings must be interpreted cautiously. HEPA air cleaners may provide additional benefit for child asthma health where traditional asthmagens (traffic, tobacco smoke) are not prominent factors, but larger studies with more statistical power and blinded designs are needed.Trial registrationClinicalTrials.gov Identifier: NCT04919915. Date of retrospective registration: May 19, 2021.

COVID-19 Pandemic–Related Reductions in Pediatric Asthma Exacerbations Corresponded with an Overall Decrease in Respiratory Viral Infections

BackgroundRespiratory viruses, air pollutants, and aeroallergens are all implicated in worsening pediatric asthma symptoms, but their relative contributions to asthma exacerbations are poorly understood. A significant decrease in asthma exacerbations has been observed during the coronavirus disease 2019 pandemic, providing a unique opportunity to study how major asthma triggers correlate with asthma activity.ObjectiveTo determine whether changes in respiratory viruses, air pollutants, and/or aeroallergens during the coronavirus disease 2019 pandemic were concomitant with decreased asthma exacerbations.MethodsHealth care utilization and respiratory viral testing data between January 1, 2015, and December 31, 2020, were extracted from the Children’s Hospital of Philadelphia Care Network’s electronic health record. Air pollution and allergen data were extracted from US Environmental Protection Agency public databases and a National Allergy Bureau–certified station, respectively. Pandemic data (2020) were compared with historical data.ResultsRecovery of in-person asthma encounters during phased reopening (June 6 to November 15, 2020) was uneven: primary care well and specialty encounters reached 94% and 74% of prepandemic levels, respectively, whereas primary care sick and hospital encounters reached 21% and 40% of prepandemic levels, respectively. During the pandemic, influenza A and influenza B decreased to negligible frequency when compared with prepandemic cases, whereas respiratory syncytial virus and rhinovirus infections decreased to low (though nonnegligible) prepandemic levels, as well. No changes in air pollution or aeroallergen levels relative to historical observations were noted.ConclusionsOur results suggest that viral respiratory infections are a primary driver of pediatric asthma exacerbations. These findings have broad relevance to both clinical practice and the development of health policies aimed at reducing asthma morbidity.

INCREASING PATIENT CONFIDENCE MANAGING ASTHMA USING ASTHMA ACTION PLANS

TOPIC: Education, Research, and Quality Improvement TYPE: Original Investigations PURPOSE: Asthma is a common illness affecting 8% of the US population and costing $81.9 billion per year. Due to its chronic and variable nature, asthmatics need frequent medication adjustments, making management challenging for both physicians and patients. Patients can control their asthma with an asthma action plan (AAP), which has directions for daily assessment, medications, and steps to detect and treat exacerbations. Self-management using AAPs is associated with a reduction in hospital admissions and ED visits by 40% and 20%, respectively. Despite evidence that AAPs are efficacious, the exact reason for their success is not known. We hypothesized that AAPs increase patient confidence managing asthma and that this is a reason for AAPs success. Our study explored whether AAP use increases confidence in self-management and asthma control. METHODS: Patients with a physician diagnosis of asthma were recruited. An eight-question Likert Scale survey developed prior gauged confidence about asthma management. At the initial visit, each patient completed the survey, received a personalized AAP, and was taught to use a peak flow meter. The same survey was given at a follow-up scheduled at the provider’s discretion. Asthma control was assessed pre and post-AAP use with the Asthma Control Test (ACT), a validated measure of asthma control. An ACT score of ≥ 19 indicates good control. All data was collected using REDCap. Results were calculated using the student t-test. RESULTS: We recruited 71 patients, and 17 were excluded for lack of follow-up. Post-AAP use, confidence using a peak flow meter increased by 45%, with 93% (50/54) rating confidence at ≥ 3 (4 being ‘strongly agree I am confident’). Fifteen percent more patients felt confident managing exacerbations, with 95% (51/54) rating confidence at ≥ 3. A 15% increase was seen in knowing asthma triggers, with 89% (48/54) rating confidence at ≥ 3. Confidence understanding medications was not impacted by AAPs, with 94% (51/54) of patients rating confidence at ≥ 3 pre and post-AAP use. Mean pre and post-AAP survey scores were 23.28 and 25.89, respectively. AAP use was associated with significantly higher mean survey scores (25.89±4.16, p =.0001). ACT data was available for 87% (47/54) of patients and 68% (32/47) scored a ≥ 19 on the follow-up ACT. Mean pre and post-AAP scores were 18.49 and 20.11, respectively. AAP use was associated with significantly higher mean ACT scores (20.11±3.35, p =.0043). CONCLUSIONS: This is the first study that shows AAP use increases patient confidence in asthma management. All but one survey question gauged at measuring increased confidence improved post-AAP use. Understanding of asthma medications likely did not see improved confidence due to a lack of discussion about this during AAP education at the initial visit. AAP use resulted in an improved mean ACT score. It is unclear if this is due to AAP use or changes made in medications. Limitations include the variable time interval for follow-up and the lack of ongoing assessment to account for the variable nature of asthma control. CLINICAL IMPLICATIONS: With an increasing reliance on telemedicine during the COVID-19 pandemic, the importance of self-management has been brought to the forefront. AAPs are a simple and effective tool that help physicians hand control over care to their patients. The routine use of AAPs can revolutionize how providers approach asthma management and reduce asthma morbidity. DISCLOSURES: No relevant relationships by Pankhuri Jha, source=Web Response No relevant relationships by Jessica Most, source=Web Response

The Effects of Caregiver Social Support and Depressive Symptoms on Child Medication Adherence and Asthma Control.

The purpose of this study was to examine relationships among caregiver social support, caregiver depressive symptoms, medication adherence, and asthma control in a sample of low-income, urban, Black children aged 3–12 years with uncontrolled asthma and their caregivers. Using longitudinal data from a randomized controlled trial (RCT) assessing the efficacy of an environmental control educational intervention, we used generalized estimating equations and ordered logistic regression models to evaluate the relationship between caregiver social support (Medical Outcomes Study Social Support Survey), depressive symptoms (Center for Epidemiologic Studies Depression scale), and two child asthma outcomes: (a) medication adherence (Asthma Medication Ratio) and (b) asthma control. At baseline, 45.7% of the 208 children had very poorly controlled asthma. Nearly a third of caregivers (97% female) had clinically significant depressive symptoms at each data collection point. Social support was not associated with either asthma outcome nor did it moderate the relationship between depressive symptoms and child asthma outcomes. Higher caregiver depressive symptoms predicted decreased medication adherence (b=−0.003, SE 0.002). Moderate asthma at baseline (OR: 0.305, SE: 0.251), severe asthma at baseline (OR: 0.142, SE: 0.299), household income < $20,000 per year (OR: 0.505, SE: 0.333), and fall season (OR: 0.643, SE: 0.215) were associated with poorer asthma control. Attending to the social context of low-income, urban, Black children with asthma is critical to reduce asthma morbidity. Maternal depressive symptoms are modifiable and should be targeted in interventions to improve child asthma outcomes in this vulnerable population. The RCT was registered with ClinicalTrials.gov (NCT01981564) in October 2013.

Childhood Asthma and Smoking: Moderating Effect of Preterm Status and Birth Weight.

IntroductionAlthough studies have examined the association between childhood asthma and parental smoking and secondhand smoke, little research has explored the moderating role of birth weight and prematurity (BWP) status on this association. We examined the association between secondhand smoke exposure, asthma, and asthma severity in children aged six to 17 as well as the modifying effect of BWP on parental smoking and asthma.MethodsWe used data from 36,954 children from the National Survey of Children’s Health 2017-2018. In addition to univariate analysis, adjusted and unadjusted logistic regression models were used to estimate the effect of secondhand smoke on asthma. The interaction term between parental smoking and BWP was tested. Multinomial regression was used to evaluate the association between secondhand smoke on asthma severity.ResultsAbout 15.1 % of children had asthma and 15.4% of parents reported smoking. Odds of asthma were higher in children living with an outdoor (AOR, 1.27; 95% CI, 1.06-1.52) and indoor (AOR, 1.46; 95% CI, 1.01-2.11) smoker in the adjusted model. The association of parental smoking with asthma differed by birth weight and premature status. Normal weight children who are premature had the highest odds ratio (AOR, 2.15; 95% CI, 1.2-3.86). In the multinomial model, low birth weight and premature children had higher odds of mild (AOR, 1.90; 95% CI, 1.40-2.56) and moderate/severe (AOR, 1.81; 95% CI, 1.16-2.84) asthma compared to the no asthma group.ConclusionThe Association of parental smoking on asthma was modified by BWP. Focused asthma interventions in children should inquire about BWP status as well as parental smoking and household smoke exposure to reduce asthma morbidity and mortality.