The prevalence of childhood asthma: interpreting falling rates in the context of shifting measurement and the COVID-19 pandemic.

PURPOSE OF REVIEW: The estimated prevalence of childhood asthma in the United States, as measured by the National Health Information Survey (NHIS), has decreased by 30% since 2017. This review provides context for observed changes in asthma rates by describing recent shifts in NHIS data collection and analysis, and considers whether the COVID-19 pandemic might impact asthma prevalence in years to come. RECENT FINDINGS: The NHIS underwent a planned redesign in 2019 with updated sampling weights to better match the U.S. population. In early 2020, the COVID-19 pandemic resulted in unplanned modifications to NHIS implementation, which may have included fewer children from populations at a heightened risk for asthma. Decreasing prevalence estimates in recent years are likely at least in part due to these survey changes rather than true epidemiologic shift. However, pandemic-related changes to risk factors for childhood asthma (including exposure to rhinovirus infections and allergic sensitization) may also influence prevalence in the future. SUMMARY: Recent changes in estimated rates of childhood asthma in the USA are likely driven by changes to survey methods and implementation, both before and during the COVID-19 pandemic. Additional years of data are needed to determine whether a true shift in disease prevalence is occurring.

Adolescent Knowledge of When to Use Inhaled Asthma Medications: Implications for Management.

PURPOSE: It is unclear how often adolescents with persistent asthma know when to use different inhaled medications (as-needed rescue vs. daily controller; 'accurate use'), or whether this knowledge is associated with clinical asthma outcomes. This study aimed to characterize adolescent knowledge of accurate use; examine whether accurate use is associated with controller medication adherence, asthma symptoms, or exacerbations requiring acute health care services; and determine whether knowledge of accurate use improves following regular exposure to controller medications with school-based directly observed therapy (DOT). METHODS: We analyzed baseline and 7-month data from the School-Based Asthma Care for Teens trial. Adolescents (12-16 years) identified inhaled medications on a chart and stated when each is used. We compared accurate use with adolescent-reported adherence, recent symptoms, and asthma-related acute health care visits; and exposure to DOT. Analyses were limited to subjects with controller medication. RESULTS: Of 430 participants, 252 had controller medication at baseline. Knowledge of accurate use was described by 62%, and associated with adherence (odds ratio [OR]: 2.06, 95% confidence interval [CI]: 1.12-3.83). By 7 months, 313 adolescents had controller medication; 75% described accurate use, which was associated with adherence (OR: 3.46, 95% CI: 1.83-6.54), health care (OR: 0.39, 95% CI: 0.20-0.79), and DOT exposure (OR: 1.83, 95% CI: 1.10-3.32). Associations with adherence and health care at 7 months persisted in adjusted analyses. DISCUSSION: Adolescent knowledge of accurate medication use was linked with greater adherence (baseline, 7 months), less acute health care (7 months), and exposure to in-school DOT. Interventions to support adolescents with persistent asthma should consider school-based care strategies and facilitate adolescent understanding of when to use different medications.

Utilization of the emergency department as a routine source of care among children with asthma.

Objective: To describe characteristics of children with persistent asthma in the ED who receive most of their healthcare in emergency settings; and determine whether recent asthma experiences or historic patterns of care are associated with identifying the ED as a typical location for care.Methods: We conducted a sub-analysis of baseline data from Telemedicine Enhanced Asthma Management through the Emergency Department (TEAM-ED), an RCT of children (3-12 years) presenting to the ED with persistent asthma (2016-2020). Caregivers identified reasons for seeking emergency care, including if their child received most overall healthcare in the ED ('ED Care'; primary outcome) or not ('Other Care'). Independent variables included demographics, recent symptoms and quality of life (QOL), and historic preventive care and healthcare use. We compared responses between ED Care and Other Care groups using bivariate and multivariate analyses.Results: We analyzed data for 355 children (31% ED Care, 69% Other Care). Compared with Other Care, ED Care respondents were more likely to identify the ED as the closest source of healthcare; report fewer symptom nights but a poorer quality of life; and describe the ED as a usual place for sick care, despite most having a PCP.Conclusions: Many children with asthma use the ED as a typical source of healthcare, and are distinguished by need for proximity, poorer caregiver QOL, and historic patterns of care-seeking. Efforts to improve timely access to outpatient care and reinforce the role of PCP-directed asthma management, such as through telemedicine, may reduce preventable morbidity including ED visits.

Caregiver Experiences Managing Persistent Childhood Asthma During the COVID-19 Pandemic.

COVID-19 has adversely affected child wellness, but it is unclear whether the pandemic led to changes in home management of chronic diseases like asthma. We surveyed 93 caregivers of children with persistent asthma from 2 ongoing asthma trials to measure changes in home asthma management, stressors, access to health care, and caregivers' worry about COVID-19 affecting their child's health. We conducted descriptive analyses, and assessed whether caregiver worry about COVID-19 was associated with asthma management, stressors, health care access, or recent symptoms. Most (80%) caregivers worried that COVID-19 would affect their child's health, and >50% restricted their child's physical activity to avoid asthma symptoms. We observed a dose-dependent relationship between increasing worry about COVID-19 and activity restrictions, financial hardship, difficulty obtaining asthma medications, and nocturnal asthma symptoms. These findings raise concern that children with persistent asthma may be at particular risk for weight gain and obesity-associated asthma morbidity due to the pandemic.

Clinical Outcomes for Young Children Diagnosed With Asthma Versus Reactive Airway Disease.

OBJECTIVE: Clinical diagnoses of asthma and reactive airway disease (RAD) in young children are subjective. We examined how often children were diagnosed with asthma versus RAD, and whether preventive care and 2-year clinical outcomes differed based on initial diagnosis. METHODS: We conducted a retrospective cohort analysis of children (2-7 years) from a university-based general pediatrics practice who had been diagnosed with RAD or asthma. We performed adjusted comparisons between groups for time until subsequent asthma-related care. We also compared delivery of asthma-related healthcare services, corticosteroid and controller prescriptions, and action plans within 2 years of index diagnosis, using bivariate and regression analyses. RESULTS: Four hundred three children were included (64% male, 67% Black, 25% Hispanic). RAD was diagnosed in 62% of index visits, and was more likely than asthma to be diagnosed in emergency settings. In the full sample, the time between index visit and subsequent asthma care did not differ between groups, after adjustment for index location. For subjects with complete 24-month follow-up (N = 300), no between-group differences were found in adjusted analyses. Most children with RAD received action plans and controller medications only after a subsequent asthma diagnosis, on average, 9 months after their index visit. CONCLUSIONS: RAD diagnoses were linked to delayed delivery of preventive care measures, but within 2 years of initial diagnosis, clinical outcomes for those diagnosed with RAD and asthma did not differ. To facilitate clear communication and timely treatment, a prompt diagnosis of asthma, rather than RAD, should be considered for children with asthma symptoms.

Going mobile with primary care: smartphone-telemedicine for asthma management in young urban adults (TEAMS).

BACKGROUND: The majority of adults with persistent asthma have chronically uncontrolled disease and interventions to improve outcomes are needed. We evaluated the efficacy, feasibility, and acceptability of a multi-component smartphone-telemedicine program (TEAMS) to deliver asthma care remotely, support provider adherence to asthma management guidelines, and improve patient outcomes. METHODS: TEAMS utilized: (1) remote symptom monitoring, (2) nurse-led smartphone-telemedicine with self-management training for patients, and (3) Electronic medical record-based clinical decision support software. Adults aged 18-44 (N = 33) and primary care providers (N = 4) were recruited from a safety-net practice in Upstate New York. Asthma control, quality of life, and FEV1 were measured at 0, 3 and 6 months. Acceptability was assessed via survey and end-of-study interviews. Paired t-test and mixed effects modeling were used to evaluate the effect of the intervention on asthma outcomes. RESULTS: At baseline, 80% of participants had uncontrolled asthma. By 6-months, 80% classified as well-controlled. Improvements in control and quality of life were large (d = 1.955, d = 1.579). FEV%pred increased 4.2% (d = 1.687) with the greatest gain in males, smokers, and lower educational status. Provider adherence to national guidelines increased from 43.3% to 86.7% (CI = 22.11-64.55) and patient adherence to medication increased from 45.58% to 85.29% (CI = 14.79-64.62). Acceptability was 95.7%; In follow up interviews, 29/30 patients and all providers indicated TEAMS worked better than usual care, supported effective self-management, and reduced symptoms over time, which led to greater self-efficacy and motivation to manage asthma. DISCUSSION: Based on these findings, we conclude that smartphone telemedicine could substantially improve clinical asthma management, adherence to guidelines, and patient outcomes.

The relationship between teen-reported nocturnal asthma symptoms and daily functioning.

OBJECTIVE: This study aims to identify associations between nocturnal asthma awakenings and functional health outcomes in a cohort of teenagers with asthma. METHODS: We analyzed baseline data from teenagers enrolled in SB-ACT, an NIH-funded RCT. During an at-home baseline survey, teenagers with asthma answered questions about demographics, recent asthma symptoms, and functional health outcomes. We conducted regression analyses to explore the relationship between persistent nocturnal asthma symptoms (≥2 nights of nocturnal asthma awakenings in the past 14 days) and functional health measures. RESULTS: Of the 430 teens enrolled (Participation rate = 79%, Mean Age = 13.4), 30% reported persistent nocturnal asthma symptoms. Compared to teens with intermittent nocturnal asthma symptoms, teens with persistent nocturnal asthma symptoms were more likely to report physical limitation during strenuous activities (OR = 1.9, 1.3-3.0), moderate activities (OR = 1.9, 1.2-3.1), and school gym (OR = 2.4, 1.5-3.8). They were also more likely to report depressive symptoms (OR = 2.3, 1.5-3.6), more asthma-related school absenteeism in the past 14 days (0.81 vs 0.12, p < 0.01) and poorer quality of life (4.6 vs 5.9, p < 0.01). These findings remained significant when controlling for daytime asthma symptoms, weight status, race, ethnicity, gender, age, and smoke exposure. CONCLUSIONS: In this cross-sectional study, persistent nighttime asthma symptoms were associated with poor functional health outcomes among teens, independent of day-time symptoms. Identifying nighttime symptoms and improving asthma control at night may positively impact daily functioning for these teens.

Early life blood lead levels and asthma diagnosis at age 4-6 years.

The USA has a high burden of childhood asthma. Previous studies have observed associations between higher blood lead levels and greater hypersensitivity in children. The objective of the present study was to estimate the association between blood lead concentrations during early childhood and an asthma diagnosis between 48 and 72 months of age amongst a cohort with well-characterized blood lead concentrations. Blood lead concentrations were measured at 6, 12, 18, 24, 36, and 48 months of age in 222 children. The presence of an asthma diagnosis between 48 and 72 months was assessed using a questionnaire which asked parents or guardians whether they had been told by a physician, in the past 12 months, that their child had asthma. Crude and adjusted risk ratios (RR) of an asthma diagnosis were estimated for several parameterizations of blood lead exposure including lifetime average (6 to 48 months) and infancy average (6 to 24 months) concentrations. After adjustment for child sex, birthweight, daycare attendance, maternal race, education, parity, breastfeeding, income, and household smoking, age-specific or composite measures of blood lead were not associated with asthma diagnosis by 72 months of age in this cohort.

A Quality Improvement Approach to Decreasing Postdischarge Acute Care Reuse Among Children With Asthma.

OBJECTIVES: To reduce 7-day acute care reuse among children with asthma after discharge from an academic children's hospital by standardizing the delivery of clinical care and patient education. METHODS: A diverse group of stakeholders from our tertiary care children's hospital and local community agencies used quality improvement methods to implement a series of interventions within inpatient, emergency department (ED), and outpatient settings. These interventions were designed to improve admission, inpatient care, and discharge processes for children hospitalized because of asthma and included a focus on (1) resident education, (2) patient access to medication and asthma education, and (3) gaps in existing asthma clinical care pathways in the ED and ICU. The primary outcome was the rate of 7-day acute care reuse (combined hospital readmissions and ED revisits) after discharge from an index hospitalization for asthma, measured through a monthly review of electronic health record data and compared with a 6-month baseline period of reuse data. RESULTS: The mean 7-day reuse rate for asthma after discharge was 3.7% during the 6 months baseline period (n = 107) and 1.0% during the 15-month intervention period (n = 302). This included a shift in our median from 3.3% to 0% with an 8-month period of no 7-day reuse. CONCLUSIONS: An interprofessional quality improvement team successfully achieved and sustained a 73% reduction in mean 7-day asthma-related acute care reuse after discharge by standardizing provider training, care processes, and patient education.

Nurse-delivered outpatient asthma education for children and caregivers: a pilot study to promote shared asthma management.

OBJECTIVES: To assess the feasibility of nurse-delivered asthma education for caregiver/child dyads in a busy clinic setting, and measure the preliminary effectiveness of the intervention. METHODS: We conducted a pilot study of nurse-delivered asthma education in a busy outpatient clinic. We enrolled a convenience sample of children (7-16 years) with uncontrolled persistent asthma who had a prescription for an inhaled controller medication and public health insurance. After provider visits, nurses taught dyads using picture-based materials, teach-back methods, and colored labels applied to asthma medications. The intervention was repeated at 1-month follow-up. We assessed feasibility by reviewing nurse documentation in the electronic medical record, detailing whether each component was implemented and the time required for education at each visit. We measured preliminary effectiveness by surveying children and caregivers separately before each clinic visit about asthma management responsibility, self-efficacy, caregiver quality of life, and symptoms; caregivers also completed a final telephone survey 2 months after the follow-up visit. We examined pre-post differences in continuous outcomes within-subjects using Wilcoxon signed rank tests. RESULTS: We enrolled 22 child/caregiver dyads. Nursing documentation indicated a high rate of component delivery at each visit; the initial and 1-month visits required 25 and 15 min, respectively. We observed significant increases in child responsibility, child/caregiver self-efficacy, caregiver quality of life, and child symptoms at each follow-up. CONCLUSION: This intervention of patient-centered asthma education can be delivered by nurses to caregiver/child dyads with high fidelity in a busy pediatric practice. Preliminary data indicate potential benefit for both children and caregivers.

Health-related internet use among adolescents with uncontrolled persistent asthma.

OBJECTIVES: To describe internet use for health information among adolescents with uncontrolled persistent asthma, and to examine whether health-related internet use is associated with responsibility for home asthma management. METHODS: We analyzed baseline data from the School-Based Asthma Care for Teens (SB-ACT) Trial, which included adolescents (12-16 years) in an urban school district who had uncontrolled persistent asthma per caregiver report. We asked adolescents whether they had ever used the Internet to look for health or medical information (Y/N). Teens then described family responsibility for 9 asthma management tasks (e.g. full caregiver responsibility, shared responsibility, or full teen responsibility). We examined responsibility sum scores in addition to responsibility for individual management tasks. We used bivariate and multivariate analyses to compare health-related internet use with participant characteristics, teen-reported asthma symptoms, and management responsibility. RESULTS: We examined data for 425 adolescents (mean age 13.4 years). Almost half (45%) reported seeking health information on the Internet. In adjusted analyses, health-related internet use was strongly associated with teen responsibility (sum score and tasks relating to carrying and using medications); internet use was also more likely among teens who were older, female, or reported uncontrolled disease. CONCLUSIONS: Adolescents with persistent asthma who share responsibility for home management or report uncontrolled disease are more likely to seek health information online. Future interventions to support teens who co-manage asthma should work to engage patients in both clinical and digital spaces, and ensure that all patients can access accurate, patient-centered asthma information when needed.

Development and preliminary results of an Electronic Medical Record (EMR)-integrated smartphone telemedicine program to deliver asthma care remotely.

INTRODUCTION: Technology-based interventions that can function within real-world practice and improve outcomes without increasing provider burden are needed, yet few successfully cross the research-to-practice divide. This paper describes the process of developing a clinically integrated smartphone-telemedicine program for adults with asthma and results from proof-of-concept testing. METHODS: We used a contextually grounded intervention development approach and May's implementation theory to design the intervention, with emphasis on systems capabilities and stakeholder needs. The intervention incorporated symptom monitoring by smartphone, smartphone telemedicine visits and self-management training with a nurse, and clinical decision-support software, which provided automated calculations of asthma severity, control and step-wise therapy. Seven adults (aged 18-40 y) engaged in a 3-month beta-test. Asthma outcomes (control, quality of life, FEV1) and healthcare utilisation patterns were measured at baseline and end-of-study. RESULTS: Each participant averaged four telemedicine visits (94% patient satisfaction). All participants had uncontrolled asthma at baseline; end-of-study 5/7 classified as well-controlled. Mean asthma control improved 1.55 points (CI = 0.59-2.51); quality of life improved 1.91 points (CI = 0.50-3.31), FEV1 percent predicted increased 14.86% (CI = -3.09-32.80): effect sizes of d = 1.16, 1.09, and 0.96, respectively. Preventive healthcare utilisation increased significantly (1.86 visits/year vs. 0.28/year prior, CI 0.67-2.47) as did prescriptions for controller medications (9.29 prescriptions/year vs. 1.57 prescriptions/year, CI 4.85-10.58). DISCUSSION: Smartphone telemedicine may be an effective means to improve outcomes and deliver asthma care remotely. However, careful attention to systems capabilities and stakeholder acceptability is needed to ensure successful integration with practice.Clinical Trials registration #: NCT03648203.

Considering the Control Group: The Influence of Follow-Up Assessments on Asthma Symptoms.

OBJECTIVE: It is unclear whether research participation effects contribute to an improvement in asthma symptoms during clinical trials in the absence of any active intervention. We examined the impact of additional follow-up surveys on caregiver-reported symptoms among control subjects in a series of randomized controlled asthma trials. METHODS: We analyzed baseline and follow-up data for children (3-10 years) with poorly controlled persistent asthma that participated as control subjects in 1 of 3 randomized trials of urban school-based asthma care (study duration: 7-10 months). We compared mean symptom-free days (SFD) per 2 weeks between baseline and final follow-up; performed bivariate regressions to explore associations between demographics and changes in SFD; and performed multivariate random-effects generalized least square regression to examine the relationship between number of follow-ups beyond baseline (range: 1-10) and changes in SFD over time. RESULTS: Five hundred and sixteen children were enrolled as controls across the 3 trials (mean age 7.5 years, 61% Black, 28% Hispanic, 81% Medicaid). Mean SFDs increased significantly from baseline to final follow-up (7.8-11.4 days, P < .001). In adjusted analyses, significant improvements in SFD were observed with all follow-up contacts in comparison with baseline. Symptom improvement showed a dose-response relationship with the number of follow-up assessments completed (1, 2-3, 4-5, and 6-10 assessments). CONCLUSIONS: Children with uncontrolled asthma who participate as controls in clinical trials experience a significant increase in SFD with additional follow-up assessments. This improvement should be considered when designing/analyzing asthma interventions, and may help guide clinical outreach efforts for underserved children with persistent asthma.

Comparing inhaled medications reported by adolescents with persistent asthma and their caregivers.

Objectives: To compare concordance (agreement) between teens with persistent asthma and their caregivers on the reported number of inhaled asthma medications used (rescue and controller); examine concordance specific to controller medications; and determine whether concordance over controller medications within caregiver/teen dyads is associated with demographics or clinical outcomes.Methods: We used baseline data from the School-Based Asthma Care for Teens (SB-ACT) trial in urban Rochester, NY. Caregivers and teens (12-16 yrs.) with poorly controlled persistent asthma separately reported the teens' inhaled therapy, and could name up to two rescue and two controller medications. We compared the total number of medications and number of controller medications reported by each dyad member with Cohen's Kappa, and assessed whether concordance over the number of controller medications was associated with demographics, symptoms, or healthcare utilization using chi-square and t-tests.Results: Of 210 dyads (79% public health insurance, 61% Black teens), 132 (63%) were disconcordant in reporting the overall number of inhaled medications. Teens or caregivers from 173 dyads (82%) reported any controller medication; however, a majority (61%) were discordant in the reporting of controller medications. Compared with concordant dyads, fewer caregivers from dyads with controller medication discordance reported education past high school (35% vs. 51%, p = 0.04); no other differences in demographics, symptoms, or healthcare utilization were identified based on controller medication concordance.Conclusions: Most dyads identified different numbers of inhaled medications, with substantial disagreement over controller medications. Working to ensure a basic understanding of treatment plans may promote successful self-management in persistent childhood asthma.

Identifying which children with persistent asthma have preventive medications available at home.

Objective: To compare caregiver-reported preventive medication use and pharmacy data with medications available at home for children with persistent asthma, and identify factors associated with having preventive medication at home.Methods: We analyzed baseline data from the School-Based Telemedicine Enhanced Asthma Management (SB-TEAM) study, including medication use, symptoms, and demographics. Research assistants documented all asthma medications available during home visits. We reviewed pharmacy records for a subset of children. Bivariate and multivariate analyses identified factors associated with having any preventive medication in the home.Results: We included 335 children (mean 7.7 years, 56% Black, 34% Hispanic, 77% Medicaid; participation 79%). Most caregivers (69%) reported preventive medication use, yet only 45% had preventive medication at home. Compared to families with preventive medication at home, more families without preventive medication reported discontinuous insurance in the prior year (7% vs. 15%, p = .02) and medication sharing (22% vs. 32%, p = .04). For the subset with pharmacy records (n = 192), 40% filled a preventive medication in the past year and 15% had a preventive medication at home. In multivariate analyses, children were less likely to have preventive medication at home when caregivers reported no preventive medication use in the past 2 weeks (OR 0.25; 95% CI 0.14, 0.43), discontinuous insurance (OR 0.42; 95% CI 0.19, 0.97), medication sharing (OR 0.54; 95% CI 0.32, 0.91), or caregiver education ≥ HS (OR 0.59; 95% CI 0.35, 0.99).Conclusion: Among urban children with persistent asthma, neither caregiver report nor pharmacy data reflect home preventive medication availability. Inquiring about insurance coverage and medication sharing may improve preventive medication availability for these children.

Transition Readiness for Talking With Providers in Urban Youth With Asthma: Associations With Medication Management.

PURPOSE: Teen readiness assessments may provide a developmental indicator of the transfer of responsibility for health self-management from caregivers to teens. Among urban adolescents with asthma, we aimed to describe teen readiness for talking with providers and identify how readiness relates to responsibility for asthma management, medication beliefs, and clinical outcomes. METHODS: Teens and caregivers enrolled in the school-based asthma care for teen's trial in Rochester, NY completed in-home surveys. We classified ready teens as those reporting a score of five on both items of the transition readiness assessment questionnaire talking with providers subscale. We performed bivariate analyses to detect differences between ready teens and other teens in teen- and caregiver-reported responsibility, teen medication beliefs, and clinical outcomes (medication adherence over the past 2 weeks, and healthcare use over the past year). RESULTS: Among this sample of 251 adolescents (mean age: 13.4 years), 35% were classified as "Ready." Ready teens were more likely than other teens to want to use a controller medication independently (7.6 vs. 6.5 out of 10, p < .01) and to have confidence in this ability (8.4 vs. 7.6 out of 10, p = .02). Teens reported poor adherence (missed 52.9% of prescribed controller doses), with no differences in responsibility or clinical outcomes based on level of teen readiness for talking with providers. CONCLUSIONS: In urban adolescents with poorly controlled asthma, a higher level of teen readiness for talking with providers is associated with higher perceptions of independence in medication taking, but does not appear to relate to clinical outcomes.

Knowledge of Inhaled Therapy and Responsibility for Asthma Management Among Young Teens With Uncontrolled Persistent Asthma.

OBJECTIVES: To compare the abilities of teens with uncontrolled persistent asthma and their caregivers to identify inhaled medications and state correct indications for use; examine medication responsibility within dyads; and determine whether responsibility is associated with knowledge about inhaled therapies. METHODS: In the baseline survey for the School-Based Asthma Care for Teens (SB-ACT) trial, we separately asked caregivers and teens to: 1) identify the teen's inhaled asthma therapies by name and from a picture chart (complete matches considered "concordant"); 2) describe indications of use for each medication; and 3) describe the allocation of responsibility for medication use within dyads. We limited analyses to dyads in which either member reported at least one rescue and one inhaled controller medication; we used McNemar and Pearson chi-square tests. RESULTS: A total of 136 dyads were analyzed. More caregivers than teens concordantly identified medications (63% vs 31%, P < .001). There was no difference between caregivers and teens in the ability to state correct indications for use (56% vs 54%, P = .79). More teens than caregivers endorsed "full teen responsibility" for rescue medication (65% vs 27%, P < .001) and controller medication use (50% vs 15%, P < .001). Neither concordant identification nor knowing indications for use was associated with reported medication responsibility. CONCLUSIONS: Medication responsibility within dyads of caregivers and teens with persistent asthma is not associated with knowledge about inhaled therapies. Targeting both members of the dyad with education and self-management strategies before responsibility transitions start may allow providers to avoid a missed opportunity to support these emerging stakeholders to adherence.

Medication identification in pediatric asthma (MED ID): The reliability and validity of a novel screening tool.

OBJECTIVES: To evaluate the reliability and validity of medication identification (MED ID), a novel survey assessing caregiver-perceived ability to identify inhaled asthma medications. METHODS: We analyzed baseline data from the School-Based Asthma Care for Teens trial in Rochester, NY. Caregivers of adolescents with persistent asthma named the inhaled medications used by their child and identified medications on a pictorial chart. Accurate identification was defined as completed matches between listed names and selected images. Caregivers answered the MED ID survey of four scaled questions on perceived ability to identify inhaled medications. We determined internal consistency reliability using Cronbach's alpha; examined concurrent validity by comparing MED ID sum scores with accurate identification using bivariate and multivariate analyses; and assessed the diagnostic utility of MED ID through receiver operating characteristic analysis. RESULTS: 126 caregivers (76% of enrolled) reported >1 inhaled medication; 52% of caregivers accurately identified medications. Two MED ID questions were removed during analysis. The two remaining questions had a score range of 2-10 points; higher scores indicate greater caregiver-perceived ability to identify medications. The Cronbach's alpha was 0.603. Accurate identification of medications was associated with a higher mean MED ID score (8.6 vs 7.6, p = 0.01). Accuracy was most strongly associated with MED ID scores ≥8 points (88% vs 60%, p < 0.001, Phi 0.32); findings were consistent in regression analysis. The greatest area under the curve was seen with MED ID scores ≥8 points (0.638). CONCLUSIONS: The two-item MED ID survey is a reliable and valid way to assess caregiver's ability to identify inhaled asthma medications.