Featured Article: Multiple Comorbid Conditions, Sleep Quality and Duration, and Academic Performance in Urban Children With Asthma

Pediatric asthma and non-allergic comorbidities: a review of current risk and proposed mechanisms

It is increasingly recognized that children with asthma are at a higher risk of other non‐allergic concurrent diseases than the non‐asthma population. A plethora of recent research has reported on these comorbidities and progress has been made in understanding the mechanisms for comorbidity. The goal of this review was to assess the most recent evidence (2016–2021) on the extent of common comorbidities (obesity, depression and anxiety, neurodevelopmental disorders, sleep disorders and autoimmune diseases) and the latest mechanistic research, highlighting knowledge gaps requiring further investigation. We found that the majority of recent studies from around the world demonstrate that children with asthma are at an increased risk of having at least one of the studied comorbidities. A range of potential mechanisms were identified including common early life risk factors, common genetic factors, causal relationships, asthma medication and embryologic origins. Studies varied in their selection of population, asthma definition and outcome definitions. Next, steps in future studies should include using objective measures of asthma, such as lung function and immunological data, as well as investigating asthma phenotypes and endotypes. Larger complex genetic analyses are needed, including genome‐wide association studies, gene expression–functional as well as pathway analyses or Mendelian randomization techniques; and identification of gene–environment interactions, such as epi‐genetic studies or twin analyses, including omics and early life exposure data. Importantly, research should have relevance to clinical and public health translation including clinical practice, asthma management guidelines and intervention studies aimed at reducing comorbidities.

Allergic disease, sleep problems and psychological distress in children recruited from the general community

BACKGROUND

It is unclear which allergic disease is most strongly related to which sleep problem and whether sleep problems may mediate the association between allergic disease and psychological distress. There is also a need for more community-based studies using non-referred samples.

OBJECTIVE

To examine the association between individual allergic diseases and sleep problems and test whether the association between allergic disease and psychological distress is mediated through sleep problems.

METHODS

Parents of 1449 Australian children aged 6-10y recruited from the general community completed measures of sleep problems (Pediatric Sleep Survey Instrument), psychological distress (Strengths and Difficulties Questionnaire), and frequency of allergic disease.

RESULTS

Sleep and psychological distress scores were in the normal range. After controlling for co-existing allergic diseases: allergic rhinitis was associated with sleep routine problems, morning tiredness, night arousals, sleep disordered breathing and restless sleep; asthma with sleep routine problems, sleep disordered breathing and restless sleep; and eczema with restless sleep. Path analyses revealed that sleep problems mediated the association between asthma and allergic rhinitis but not eczema with psychological distress.

CONCLUSION

In this non-referred community sample, the frequency of sleep problems and psychological distress was lower than that typically reported in children referred to specialized centres. However, allergic rhinitis was associated with a broad range of sleep problems and to a lesser extent in children with asthma and least in children with eczema. Path analysis revealed that the association between allergic disease and psychological distress was mediated through sleep problems highlighting the importance of assessing sleep health in children with allergic disease.

Chronic pediatric diseases and risk for reading difficulties: a narrative review with recommendations

Literacy is a major social determinant of health, rooted in skills that develop during early childhood. Children arriving at kindergarten unprepared to learn to read are more likely to have low reading proficiency thereafter. General and health literacy are highly correlated, affecting understanding of health conditions, treatment adherence, and transition to self-care and adult healthcare services. The American Academy of Pediatrics (AAP) recommends literacy and school readiness promotion during well-visits and neurodevelopmental surveillance is emphasized across primary and subspecialty care. While genetic and environmental risk factors for reading difficulties are well-established, risks related to complex and chronic medical conditions are less appreciated and under-researched. This review applies an eco-bio-developmental framework to explore literacy across five complex chronic conditions affecting millions of children worldwide: asthma, cancer, congenital heart disease, epilepsy, and sickle cell disease. In each, integration of an efficient reading brain network may be impacted by direct factors, such as ischemia, anesthesia, and/or medications, and also indirect factors, such as altered parent-child routines, hospital stays, and missed school. By integrating literacy into care management plans for affected children, pediatric primary care and specialty providers are poised to identify risks early, target guidance and interventions, and improve academic and health outcomes. IMPACT: While genetic and environmental risk factors for reading difficulties are well-established, risks related to complex and/or chronic medical conditions such as asthma, cancer, congenital heart disease, epilepsy, and sickle cell disease are substantial, less appreciated, and under-researched. General and health literacy are highly correlated, with implications for the understanding one's health condition, treatment adherence, and transitioning to self-care, which is especially important for children with complex and/or chronic illness. Pediatric primary care and specialty providers are poised to integrate reading and literacy into care management plans for children with complex and/or chronic illness, including early screening, guidance, support, and interventions.

The impact of childhood asthma on academic performance: A matched population-based cohort study

BACKGROUND

There is inconclusive evidence of the effect of asthma on the academic performance of young people. This study aims to compare scholastic performance and high school completion of young people hospitalized with asthma compared to matched peers not hospitalized with asthma.

METHOD

A population-based matched case-comparison cohort study of young people aged ≤18 years hospitalized for asthma during 2005-2018 in New South Wales, Australia using linked birth, health, education and mortality records. The comparison cohort was matched on age, gender and residential postcode. Generalized linear mixed-modelling examined risk of school performance below the national minimum standard (NMS) and generalized linear regression examined risk of not completing high school for young people hospitalized with asthma compared to matched peers.

RESULTS

Young males hospitalized with asthma had a 13% and 15% higher risk of not achieving the NMS for numeracy (95%CI 1.04-1.22) and reading (95%CI 1.07-1.23), respectively, compared to peers. Young males hospitalized with asthma had a 51% (95%CI 1.22-1.86) higher risk of not completing year 10, and around a 20% higher risk of not completing year 11 (ARR: 1.25; 95%CI 1.15-1.36) or year 12 (ARR: 1.27; 95%CI 1.17-1.39) compared to peers. Young females hospitalized with asthma showed no difference in achieving numeracy or reading NMSs, but did have a 21% higher risk of not completing year 11 (95%CI 1.09-1.36) and a 33% higher risk of not completing year 12 (95%CI 1.19-1.49) compared to peers.

CONCLUSIONS

Educational attainment is worse for young people hospitalized with asthma compared to matched peers. Early intervention and strategies for better management of asthma symptoms may enhance academic performance for students.

Pediatric Asthma Is Associated With Poorer 3-Year Academic Achievement in Urban Elementary and Middle-School Students

OBJECTIVE

Asthma has been associated with worse academic performance in a single school year, yet this association may be magnified over time as students with asthma continue to fall behind. This study examined the relationship between asthma and standardized test performance aggregated across 3 school years, including whether performance varied by likelihood of having significant asthma.

METHODS

Data were from students in grades K-8 at 2 urban public schools in the Northeastern United States (2015-2018). Asthma was based on parent- and self-report and school health center records. Standardized test performance was assessed using Measures of Academic Progress (MAP) and Partnership for Assessment of Readiness for College and Careers (PARCC). Mixed effects linear and logistic regression models were used to evaluate the relationship between asthma and performance during 3 school years.

RESULTS

Any asthma was associated with worse MAP performance across the 3 academic years. Students with the most significant asthma demonstrated worse performance on MAP and PARCC. Aggregating across 3 school years, students scored 3.17 points worse on MAP reading (95% confidence interval [CI]: 0.7-5.63; P = .012) and 3.56 points worse on MAP mathematics (95% CI: 0.52-6.6; P = .022); they had 48.8% (95% CI: 1.9%-73.2%; P = .044) and 58.0% (95% CI: 21%-78%; P = .007) lower odds of proficiency on PARCC English/Language Arts and Mathematics, respectively compared to those without asthma.

CONCLUSIONS

The relationship between asthma and poorer academic achievement in 1 school year may be magnified over multiple years, particularly among those with more significant asthma. School-based asthma interventions may support academic growth and more equitable health outcomes.

Health disparities in allergic and immunologic conditions in racial and ethnic underserved populations: A Work Group Report of the AAAAI Committee on the Underserved

Health disparities are health differences linked with economic, social, and environmental disadvantage. They adversely affect groups that have systematically experienced greater social or economic obstacles to health. Renewed efforts are needed to reduced health disparities in the United States, highlighted by the disparate impact on racial minorities during the coronavirus pandemic. Institutional or systemic patterns of racism are promoted and legitimated through accepted societal standards, and organizational processes within the field of medicine, and contribute to health disparities. Herein, we review current evidence regarding health disparities in allergic rhinitis, asthma, atopic dermatitis, food allergy, drug allergy, and primary immune deficiency disease in racial and ethnic underserved populations. Best practices to address these disparities involve addressing social determinants of health and adopting policies to improve access to specialty care and treatment for the underserved through telemedicine and community partnerships, cross-cultural provider training to reduce implicit bias, inclusion of underserved patients in research, implementation of culturally competent patient education, and recruitment and training of health care providers from underserved communities. Addressing health disparities requires a multilevel approach involving patients, health providers, local agencies, professional societies, and national governmental agencies.

Chronic Illness and Internalizing Symptomatology in a Transdiagnostic Clinical Sample of Youth

OBJECTIVE

In research with community samples, children with chronic physical illnesses have shown elevated anxiety and depressive symptoms, compared to healthy peers. Less is known about whether physical illnesses are associated with elevated internalizing symptoms even among children referred for mental health treatment-a pattern that would indicate distinctive treatment needs among physically ill children receiving mental health care. We investigated the relationship between chronic physical illness and internalizing symptomatology among children enrolling in outpatient mental health treatment.

METHOD

A total of 262 treatment-seeking children ages 7-15 and their caregivers completed a demographic questionnaire, Child Behavior Checklist, and Youth Self-Report during a pre-treatment assessment. Physical illnesses were identified through caregiver report.

RESULTS

There was no overall association between the presence/absence of chronic physical illness and parent- or child-reported symptoms. However, number of chronic physical illnesses was related to parent- and child-reported affective symptoms. Children with two or more chronic physical illnesses had more severe depressive symptoms than those with fewer physical illnesses.

CONCLUSION

Having multiple chronic illnesses may elevate children's risk of depression symptomatology, even in comparison to other children seeking mental health care. This suggests a need to identify factors that may exacerbate depression symptoms in physically ill children who are initiating therapy and to determine whether different or more intensive services may be helpful for this group. The findings suggest the potential utility of screening for depression in youth with chronic physical illnesses, as well as addressing mental and physical health concerns during treatment.

Internalizing symptoms and sleep outcomes in urban children with and without asthma

STUDY OBJECTIVES

This study examines associations between internalizing symptoms and sleep in a sample of urban children with and without asthma, whether asthma status moderates these associations, and whether associations differ by ethnic group.

METHODS

Participants were Latino, African American (AA), and non-Latino white (NLW) urban 7- to 9-year-olds with (n = 259) and without (n = 122) persistent asthma. Teacher-reported internalizing symptoms (anxiety, depressive, and somatic) were assessed using the Behavioral Assessment System for Children-2. Sleep duration, variability in sleep duration, and sleep onset latency were assessed with actigraphy.

RESULTS

Depressive symptoms were associated with variability in sleep duration and shorter sleep onset latency; somatic symptoms were associated with variability in sleep duration. In Latino children, depressive symptoms were associated with shorter sleep onset latency. In AA children, anxiety, depressive, and somatic symptoms were associated with variability in sleep duration; somatic symptoms were related to variability in sleep duration in NLW children. The association between internalizing symptoms and sleep outcomes did not differ by asthma status. However, asthma status was a significant moderator when examining these associations by ethnic group: among AA children, depressive symptoms were significantly related to variability in sleep duration only in children with asthma, whereas in NLW children, somatic symptoms were related to variability in sleep duration only in children without asthma.

CONCLUSIONS

Targeting specific internalizing symptoms and sleep outcomes may be beneficial in the development of interventions tailored for urban children with and without asthma from specific ethnic groups.

Racial and ethnic disparities in sleep outcomes among urban children with and without asthma

BACKGROUND

Suboptimal sleep has been documented in at-risk groups such as urban minority children, particularly those with asthma. It is therefore critical to examine differences in sleep outcomes across specific racial and ethnic groups and to identify factors that contribute to such variations in sleep outcomes to inform tailored interventions to improve sleep health.

OBJECTIVES

The objectives were to examine racial/ethnic differences in sleep outcomes among urban children with and without asthma and to evaluate the extent to which asthma status and aspects of sleep hygiene and the sleep environment contribute to racial/ethnic differences in sleep outcomes in this sample.

METHODS

Two hundred and sixteen African American, Latino, or non-Latino white (NLW) urban children, ages 7-9 years, with (n = 216) and without asthma (n = 130) and their primary caregivers were included. Objective sleep duration and efficiency were assessed via actigraphy. Asthma status was assessed by a study clinician. Caregiver-reported sleep hygiene and exposure to noise were assessed using a questionnaire.

RESULTS

Minority children in the sample had, on average, shorter sleep duration compared to NLW children during the monitoring period (mean difference Latino vs NLW = -22.10, SE = 5.02; mean difference AA vs NLW = -18.69, SE = 5.28) Additionally, several racial/ethnic group differences in sleep outcomes emerged and were dependent on whether or not children had asthma. Specifically, Latinos had lower mean number of awakenings compared to NLWs but only among control participants with no asthma. Furthermore, specific aspects of sleep hygiene and exposure to nighttime noise in the home and neighborhood contributed to racial/ethnic differences in sleep outcomes.

CONCLUSION

Considering urban stressors and asthma status when treating pediatric populations is important, as factors related to urban stress and asthma management may influence sleep hygiene practices and sleep outcomes.

Asthma and academic performance in urban children

BACKGROUND

Urban minority children experience high levels of asthma morbidity. Poor school performance can be an indicator that asthma is in poor control. Little attention has been paid to examining real-time links between asthma and academic performance, particularly in high-risk groups.

OBJECTIVE

Examine 1) academic performance across a range of indicators in a group of urban children with asthma and urban children without chronic illness and ethnic differences in these associations, and 2) associations between asthma and academic performance in the group of urban children with asthma and ethnic differences in these associations.

METHODS

Two hundred sixteen black/African American (33%), Latino (46%), and non-Latino white (21%) urban children, ages 7 to 9 years completed a clinic- and home-based protocol that assessed asthma and allergy status, objective measurements of lung function, and academic functioning.

RESULTS

Analyses revealed that children with asthma experienced a higher number of school absences when compared with healthy controls. Greater disparities in academic outcomes emerged when examining ethnic differences within the groups of children with and without asthma. Poor academic outcomes were observed in Latino children with asthma. Furthermore, a strong correspondence of poor asthma outcomes and decrements in academic performance were seen in the full sample, and these associations emerged across ethnic groups.

CONCLUSION

Asthma activity contributes to poorer academic outcomes across a range of indicators, and urban minority children with asthma, particularly Latino children, may be at heightened risk for poorer academic performance. School management guidelines for asthma need to be consistently implemented and tailored for school staff, caregivers, and students with asthma to address challenges of managing asthma within the urban school setting.