Racial and Ethnic Disparities in Current Asthma and Emergency Department Visits: Findings from the National Health Interview Survey, 2001–2010

Objectives. Racial/ethnic disparities in current asthma prevalence and medical care are a major public health concern. We examined the differences in asthma prevalence and morbidity among major racial/ethnic populations in the US. Methods. We analyzed data from the 2001–2010 National Health Interview Survey for adults (≥18 years) and children and adolescents (<18 years). Outcome variables were current asthma prevalence, at least one attack in the past 12 months, and at least one asthma-related emergency department/urgent care center (ED/UCC) visit in the past 12 months. We used multivariate logistic regression to calculate the model-adjusted prevalence and risk ratios (ARR). Results. In our study, 9.0% of the children and 7.2% of the adults had current asthma. Non-Hispanic black and Puerto Rican children were more likely to have current asthma (ARR 1.46, 1.66, respectively) and to visit the ED/UCC (ARR 1.61, 1.67, respectively) than non-Hispanic whites. American Indian/Alaskan Native children were more likely to have current asthma (ARR 1.76) than non-Hispanic whites. Mexican/Mexican American children and adults had lower prevalence of current asthma but higher ED/UCC use (adults only) than non-Hispanic whites. Among adults, Puerto Ricans and American Indian/Alaskan Natives were more likely to have current asthma (ARR 1.60, 1.39, respectively) than non-Hispanic whites, and all the studied racial/ethnic groups except Asians were more likely to have visited the ED/UCC than non-Hispanic whites. Adults and children who received emergency care for asthma in the past 12 months more frequently received multiple components of asthma management and control (e.g., taking long-term medication, having an asthma management plan) compared to those without emergency care. Conclusions. Racial/ethnic differences in current asthma prevalence, asthma attacks, and increased utilization of emergency room visits for asthma among minorities persist among children and adults. Appropriate and effective asthma management and education may lead to better asthma control and reduce emergency care utilization.     

What About Your Friends? Exploring Asthma-Related Peer Interactions

Purpose. School-based asthma interventions have been shown to be effective, but many may not be sensitive to the influence of peer interactions in shaping asthma-related emotional experiences. This exploratory study describes associations between peer interactions and asthma-related emotional experiences, asthma control, and outcomes among elementary-aged children with asthma. Methods. Data come from the baseline assessment of a randomized trial evaluating the effect of a school-based asthma intervention. Univariate and multivariate statistics were completed to examine associations between peer interactions and asthma-related variables of interest. Results. Eight hundred and thirty-five caregiver and child interviews were used in the analysis. Both males and females were enrolled in this study, 31% had not well controlled or poorly controlled asthma and 44% reported taking asthma medications. Overall, 26% of children talked to friends about asthma. Females were significantly more likely to talk to friends about asthma (p < .05) and more likely to report that they were worried, concerned, or troubled about asthma (p < .01). Significant differences in emotional quality of life between males and females were also found. Children who reported talking to friends about asthma were more likely to report teasing about asthma (OR = 2.47; 95% CI 1.57, 3.89) and to report that friends help with their asthma (OR = 1.79; 95% CI 1.07, 3.01). Conclusions. School-based asthma interventions should be sensitive to emotional-related outcomes associated with asthma and the influence of asthma-related peer interactions. Providing children with communication strategies for disclosure of asthma status to peers that result in more supportive interactions may be needed.     

A Library-Site Asthma Education Program for Inner-City Communities

Asthma education programs are reportedly effective for children and adolescents. Urban and minority children continue to have poor asthma outcomes and limited access to asthma education programs. The purpose of this study was to determine whether a library-based asthma education program, the Columbus Ohio Partnership for Inner-City Asthma Education (COPICAE), offered to urban and minority children (with their parents) could improve asthma-related outcomes and reduce billing claims for asthma-related hospital visits. A prospective/observational study was conducted to evaluate asthma-related outcomes of 87 children who completed 6 hours of asthma education using telephone follow-up at 12 and 24 months with a scored Living With Asthma Survey (LWAS). Hospital billing claims for asthma as the primary diagnosis were compared over a 24-month period for 64 children who completed 6 hours of asthma education with an age and zip code match control. Two separate focus groups with Spanish-speaking and English-speaking parents who completed 6 hours of asthma education with their children obtained parental perspectives about the asthma education classes. LWAS follow-up data were obtained on 67% of the participants at year 1 and 43% at year 2. Compared to pre-intervention mean scores, there were decreases in scores to all LWAS items. Parents reported improvements in compliance with asthma medication use and overall control of their child's asthma. Parents also found the information from the asthma education classes to be “beneficial.” Total asthma-related billing claims for children who completed 6 hours of asthma education decreased 63.2%, while those for age and zip code matched controls increased 0.7%. Inner-city and minority children (with their parents) who attended 6 hours of asthma education offered in a public library showed improvements in asthma-related outcomes over a 24-month period and decreased billing claims for asthma-related hospital visits. Parents found 6 hours of asthma education to be beneficial in gaining basic knowledge about asthma and improving their child's illness control and self-esteem in living with asthma.     

Respira project: Humanistic and economic burden of asthma in Brazil

Objective: To determine the association of asthma on health-related quality of life (QoL), productivity, and use of healthcare resources among adults in Brazil. Methods: Data were analyzed from the 2015 Brazil National Health and Wellness Survey, a cross-sectional survey with 12,000 adult respondents. Asthma and control groups were compared with respect to health-related QoL, asthma control, work productivity, and adherence. Generalized linear models were developed to compare asthma-related associations controlling for potential confounding factors. Results: Among respondents, 4.1% (n = 494) reported an asthma diagnosis; those without asthma symptoms were used as the control group (n = 11,487). Regarding asthma control, 51.2% of patients had uncontrolled asthma, 36.4% partially controlled asthma, and 12.3% were fully controlled. Short-acting β2 agonists were the most commonly used class of drugs (38.5%). Approximately 32.4% of asthma patients were considered fully adherent to their treatment. In multivariable analyses, asthma patients presented lower health-related QoL and had more frequent visits with medical healthcare providers (6.1 versus 4.2) emergency room visits (1.0 versus 0.5), and more hospitalizations (0.4 versus 0.2), than control respondents six months prior to the study (p < 0.05). Rates of absenteeism and presenteeism varied between 11.5% and 7.4% (p < 0.05) and 30.4% and 20.9% (p < 0.001) between asthma patients and controls, respectively. Conclusions: Asthma had a negative association on health-related QoL, work productivity, and use of healthcare resources. Excessive use of short-acting β2 agonists and poor treatment adherence reflect poor asthma control and suggest the need to implement new strategies for asthma treatment in Brazil.     

Race, socioeconomic factors, and area of residence are associated with asthma prevalence

Asthma prevalence in the United States has been reported to be higher in minority groups such as Blacks and Hispanics. Because a disproportionate number of individuals from such minority groups are of low socioeconomic status (SES), it is unclear how much of the racial/ethnic differences in asthma prevalence is related to low SES. We investigated the effect of SES on the relationship between race/ethnicity and asthma prevalence in a cohort of families with a history of asthma or allergies from the Boston, Massachusetts area. From 499 families, a cohort of 998 parents and 307 children was identified. We used total yearly family income (<$50,000 vs. > or = $50, 000), highest level of education (< or = high school vs. > or = college), and residence in high-poverty areas vs. low-poverty areas as measures of SES. Yearly family income <$50,000, < or = high school education, and residence in high poverty areas were all associated with increased risks for asthma in both cohorts. In the parental cohort, Blacks and Hispanics (OR = 2.1, 95% CI = 1.5, 2.8; and OR = 2.2, 95% CI = 1.5, 3.2, respectively) were at greater risk for asthma than Whites. In the cohort of children, Black and Hispanic children (OR = 2.9, 95% CI = 1.0, 8.0; and OR = 5.3, 95% CI = 1.6, 17.5, respectively) were also at increased risk for asthma. When the three measures of SES were included in the multivariable models, the risks associated with Blacks and Hispanics decreased in both cohorts: OR = 1.4, 95% CI = 0.9, 2.0; and OR = 1.6, 95% CI = 1.0, 2. 6, respectively, for the parents; and OR = 0.8, 95% CI = 0.2, 3.0; and 2.5, 95% CI = 0.5, 11.7, respectively, for the children. We conclude that a large proportion of the racial/ethnic differences in asthma prevalence in our study is explained by factors related to income, area of residence, and level of education.     

Omalizumab (Xolair) improves quality of life in adult patients with allergic asthma: a review

Physicians are increasingly aware that asthma causes significant impairment of the patients physical, psychological, and social well-being. Whilst standard clinical endpoints provide significant information on airway status during treatment, it is important to determine whether such improvements overcome the functional impairment that patients have to deal with on a daily basis. As such, assessment of health-related quality of life (QoL) is an important aspect of asthma management in clinical practice. Omalizumab (Xolair) is a recombinant humanized monoclonal anti-immunoglobulin E (IgE) antibody that represents a new therapeutic approach to IgE-mediated diseases such as allergic asthma. Clinical studies show that omalizumab improves the control of allergic asthma whilst reducing steroid consumption, and enhances long-term disease control in patients with recurrent symptoms. Using established and validated QoL methodology, two placebo-controlled clinical studies in adults with moderate-to-severe allergic asthma have shown that patients treated with omalizumab experience a clinically relevant improvement in all aspects of their asthma-related QoL, changes that were significantly superior to those observed for placebo. Such improvements were apparent when omalizumab was added to existing therapy with inhaled corticosteroids, and maintained during a subsequent steroid-reduction phase. Through effective disease control, omalizumab therefore leads to significant improvements in health-related QoL that are meaningful to patients with allergic asthma.     

A Library-Site Asthma Education Program for Inner-City Communities

Asthma education programs are reportedly effective for children and adolescents. Urban and minority children continue to have poor asthma outcomes and limited access to asthma education programs. The purpose of this study was to determine whether a library-based asthma education program, the Columbus Ohio Partnership for Inner-City Asthma Education (COPICAE), offered to urban and minority children (with their parents) could improve asthma-related outcomes and reduce billing claims for asthma-related hospital visits. A prospective/observational study was conducted to evaluate asthma-related outcomes of 87 children who completed 6 hours of asthma education using telephone follow-up at 12 and 24 months with a scored Living With Asthma Survey (LWAS). Hospital billing claims for asthma as the primary diagnosis were compared over a 24-month period for 64 children who completed 6 hours of asthma education with an age and zip code match control. Two separate focus groups with Spanish-speaking and English-speaking parents who completed 6 hours of asthma education with their children obtained parental perspectives about the asthma education classes. LWAS follow-up data were obtained on 67% of the participants at year 1 and 43% at year 2. Compared to pre-intervention mean scores, there were decreases in scores to all LWAS items. Parents reported improvements in compliance with asthma medication use and overall control of their child's asthma. Parents also found the information from the asthma education classes to be “beneficial.” Total asthma-related billing claims for children who completed 6 hours of asthma education decreased 63.2%, while those for age and zip code matched controls increased 0.7%. Inner-city and minority children (with their parents) who attended 6 hours of asthma education offered in a public library showed improvements in asthma-related outcomes over a 24-month period and decreased billing claims for asthma-related hospital visits. Parents found 6 hours of asthma education to be beneficial in gaining basic knowledge about asthma and improving their child's illness control and self-esteem in living with asthma.     

Identifying Risk and Resource Factors in Children with Asthma from Urban Settings: The Context-Health-Development Model

This two-year longitudinal study examined concurrent and across-time associations between characteristics related to context, health, and development (i.e., neighborhood disadvantage, knowledge related to asthma management and asthma management behaviors, and self-competence) and children's asthma-related functioning. Thirty-one 8- to 12-year-old children with asthma and their primary caregivers were interviewed for the baseline of this study, and 29 of these dyads were interviewed for the 1-year follow-up. All participants resided in urban neighborhoods, and most were members of ethnic minority (African American and Hispanic) groups. Cross-sectional support was found for significant inverse relationships between neighborhood disadvantage and children's asthma knowledge. Lower levels of self-competence were consistently cross-sectionally associated with lower levels of asthma knowledge. A combination of higher levels of asthma knowledge, more optimal asthma management strategies, and self-competence was associated with fewer school absences across the study period. These results suggest an interdependence between aspects of children's sociocultural context, health, and developmental characteristics. This multidimensional model provided preliminary support for the risk function of neighborhood disadvantage and the resource functions of asthma knowledge, asthma management, and self-competence for asthma-related functioning among urban children.     

Identifying Risk and Resource Factors in Children with Asthma from Urban Settings: The Context-Health-Development Model

This two-year longitudinal study examined concurrent and across-time associations between characteristics related to context, health, and development (i.e., neighborhood disadvantage, knowledge related to asthma management and asthma management behaviors, and self-competence) and children's asthma-related functioning. Thirty-one 8- to 12-year-old children with asthma and their primary caregivers were interviewed for the baseline of this study, and 29 of these dyads were interviewed for the 1-year follow-up. All participants resided in urban neighborhoods, and most were members of ethnic minority (African American and Hispanic) groups. Cross-sectional support was found for significant inverse relationships between neighborhood disadvantage and children's asthma knowledge. Lower levels of self-competence were consistently cross-sectionally associated with lower levels of asthma knowledge. A combination of higher levels of asthma knowledge, more optimal asthma management strategies, and self-competence was associated with fewer school absences across the study period. These results suggest an interdependence between aspects of children's sociocultural context, health, and developmental characteristics. This multidimensional model provided preliminary support for the risk function of neighborhood disadvantage and the resource functions of asthma knowledge, asthma management, and self-competence for asthma-related functioning among urban children.     

Prevalence of Childhood Asthma and Associated Morbidity in Los Angeles County: Impacts of Race/Ethnicity and Income

Racial/ethnic and socioeconomic disparities in the prevalence of childhood asthma have been reported nationally but few population-based studies in local and regional settings have been reported. To assess variation in the prevalence of childhood asthma and associated morbidity across race/ethnic and income groups in the Los Angeles County population, we analyzed data on a random sample of 6004 children (≤17 years old) enrolled in a countywide health survey from 09 1999 through 04 2000. The prevalence of childhood asthma was highest in blacks (15.8%), intermediate in whites (7.3%) and Asians (6.0%), and lowest in Latinos (3.9%; p<0.001). These differences persisted after controlling for income, measures of health care access, and other covariates. Asthma prevalence was inversely related to income in all racial/ethnic groups except Latinos from Spanish-speaking households. Among children with asthma, blacks and Latinos were more likely than whites to report asthma-related limitations in physical activity and need for urgent medical services. These findings indicate marked disparities in asthma prevalence and related morbidity in this large urban child population and highlight the importance of efforts to identify high-risk subpopulations for focused prevention and treatment interventions.     

Socioeconomic status and asthma control in African American youth in SAGE II

Objective: African Americans are disproportionately burdened by asthma. We assessed the individual and joint contribution of socioeconomic status (SES) on asthma morbidity among African American youth. Methods: We examined 686 African Americans (8–21 years) with asthma. To account for the joint effects of SES, a composite index was derived from maternal educational attainment, household income, and insurance status. Ordinal logistic regression was used to estimate the individual and joint effect of SES on asthma control. Models were adjusted for age, sex, controller medication use, in utero smoke exposure, family history of asthma, family history of rhinitis, breastfeeding, daycare attendance, and mold exposure. Results: Participants were classified as Poorly Controlled Asthma (40.8%), Partially Controlled Asthma (29.7%), or Controlled Asthma (30.2%). Of the individual SES indicators, low income was the strongest predictor of poor asthma control. Children with low income had worse asthma control than those with higher income (OR 1.39; 95% CI 0.92–2.12). The SES index ranged from 4–9. SES was associated with 17% increased odds of poor asthma control with each decrease in the index (95% CI 1.05–1.32). The SES index was associated with asthma-related symptoms, nocturnal awakenings, limited activity, and missed school days. Conclusions: The negative effects of SES were observed along the entire socioeconomic gradient, and the adverse asthma outcomes observed in African American youth were not limited to the very poor. We also found that the SES index may be a more consistent and useful predictor of poor asthma outcomes than each indicator alone.     

Area-level socio-economic status and health status among adults with asthma and rhinitis.

Socio-economic status (SES) may affect health status in airway disease at the individual and area level. In a cohort of adults with asthma, rhinitis or both conditions, questionnaire-derived individual-level SES and principal components analysis (PCA) of census data for area-level SES factors were used. Regression analysis was utilised to study the associations among individual- and area-level SES for the following four health status measures: severity of asthma scores and the Short Form-12 Physical Component Scale (SF-12 PCS) (n = 404); asthma-specific quality of life (QoL) scores (n = 340); and forced expiratory volume in one second (FEV1) per cent predicted (n = 218). PCA yielded a two-factor solution for area-level SES. Factor 1 (lower area-level SES) was significantly associated with poorer SF-12 PCS and worse asthma QoL. These associations remained significant after adding individual-level SES. Factor 1 was also significantly associated with severity of asthma scores, but not after addition of the individual-level SES. Factor 2 (suburban area-level SES) was associated with lower FEV1 per cent predicted in combined area-level and individual SES models. In conclusion, area-level socio-economic status is linked to some, but not all, of the studied health status measures after taking into account individual-level socio-economic status.     

The relationship between Direct to Consumer Advertising (DTCA) and asthma-related emergency department use among Medicaid-enrolled children

Objective: Asthma is a leading cause of emergency department (ED) visits. There has been much debate on the impact of direct to consumer advertising (DTCA) on healthcare. This study seeks to examine the association between DTCA expenditure and asthma-related ED use. Study design: In this study, we combined Medicaid administrative data and a national advertising data on asthma medications. The sample size consisted of 180?584 Medicaid-enrolled children between the ages of 5 and 18 years who had an asthma diagnosis. Twenty percent of the Medicaid-enrolled children in the sample had asthma-related ED visits. Results: We found that DTCA expenditure is associated with a decrease in asthma-related ED visits (OR?=?0.75; CI: 0.64–0.89). However, at higher levels of DTCA expenditure, the likelihood of asthma-related ED visits increases (OR?=?1.25; CI: 1.05–1.49), indicating a decreased relationship between DTCA and asthma-related ED visits. Conclusions: Our findings suggest that DTCA may be associated with improved health outcomes for Medicaid-enrolled children with asthma.     

The relationship between patient–provider communication and quality of life for children with asthma and their caregivers

Abstract

Objective: This study examined whether patient–provider communication is associated with asthma-related quality of life (QOL) and asthma outcomes among children with asthma and their caregivers. Methods: Children ages 8–16 years with asthma and their caregivers (n?=?296) were recruited at five pediatric practices in North Carolina. Children and caregivers reported demographic and clinical characteristics immediately after an audio-taped medical visit with their health care provider. During a home visit that took place 1 month after the medical visit, children and caregivers reported asthma-related QOL, and caregivers reported child asthma outcomes, including asthma symptom days and missed school days. Generalized estimating equations were used to determine whether patient–provider communication during the medical visit was associated with child and caregiver QOL and child asthma outcomes 1 month later. Results: On average, providers asked caregivers 4.5 questions and asked children 3 questions per visit, whereas caregivers and children asked less than 1 question per visit. Providers asked children more asthma-related questions, caregivers reported better QOL and fewer asthma symptom days 1 month later. Children and caregivers with higher asthma-management self-efficacy at the office visit reported better QOL 1 month later. Conclusions: Mirroring national guideline recommendations, our results suggest that providers should ask children about their asthma during medical visits. Future longitudinal studies should conduct mediation analyses to determine whether asking children asthma-related questions during medical visits increases children’s asthma management self-efficacy and ultimately improve outcomes, such as QOL, health care utilization, symptom days and missed school days.     

Asthma exacerbations and socio-economic status in French adults with persistent asthma: A prospective cohort study

Introduction: Adults disadvantaged by poor socio-economic status (SES) are more severely affected by asthma compared to those with better SES. We aimed to determine whether the frequency of asthma exacerbations (AEx), as well as aspects related to AEx management, differed based on SES in patients treated with daily treatments. Methods: This study, part of the prospective observational cohort ASTRO-LAB, included French adult patients with persistent asthma. Patients were considered as low SES if they benefited from publicly funded special health insurance and/or were perceived as low SES by their general practitioner. AEx was defined as at least one of the following: asthma-related oral corticosteroid course, medical contact, hospitalization, and death. We examined associations between SES and AEx frequency, perceived triggering factors and type of medical contact after AEx. Results: In our sample of 255 patients, 11.40% were considered as low SES. Patients with low SES did not report significantly more AEx than medium/high SES patients during one-year follow-up (0.79 versus 0.55, p = 0.38). The type of medical contact during AEx differed significantly between the two groups (p = 0.03): patients with medium/high SES consulted their general practitioner more frequently (OR = 2.23, 95% CI = 0.91–5.50, p = 0.08) and were less likely to visit an emergency department or be hospitalized (OR = 0.27, 95% CI = 0.09–0.84, p = 0.02). Conclusions: AEx frequency did not differ significantly between low and medium/high SES patients, but differences were found in the management of AEx. Studies are needed to better understand the relation between precariousness and management of asthma.     

Depression symptoms and quality of life among individuals with aspirin-exacerbated respiratory disease

Objective: Patients with aspirin-exacerbated respiratory disease (AERD) have high disease burden due to the severity of asthma and sinonasal symptoms. There is limited research on the psychological well-being and subjective experiences of patients with AERD. This study examined levels of depression symptoms, asthma-related quality of life and asthma control among AERD patients. Methods: Thirty-two adults with AERD and 39 patients without AERD (asthma-only) were recruited from outpatient asthma/allergy clinics. The sample was largely comprised of ethnic minority, inner-city patients who ranged in age from 19 to 84?years old. Participants completed the Beck Depression Inventory (BDI), the Mini Asthma Quality of Life Questionnaire (Mini AQLQ), a self-report rating of asthma severity and spirometry testing. Asthma control and severity were determined following national guidelines. Results: AERD patients reported lower levels of depression symptoms (p?=?0.049), better overall asthma-related quality of life (p?<?0.001), and perceived their asthma to be less severe (p?=?0.01) compared to asthma-only patients. However, clinician ratings of asthma severity were more severe for AERD than asthma-only patients (p?=?0.006). No significant differences were found between the groups on asthma controller medications or oral corticosteroid bursts for asthma. Conclusions: AERD patients may be resilient given their low levels of depression symptoms and positive views of asthma-related impairment despite higher clinician-rated asthma severity. The adult onset nature of asthma in AERD might be a protective factor on mental health. Future studies should explore mechanisms linking AERD and positive psychological health outcomes and subjective perception of asthma.     

Parental Self-Efficacy and Morbidity in Pediatric Asthma

This study investigated the relationship between parental self-efficacy and asthma-related morbidity. Participants included 139 parents of children (ages 5–8) who were diagnosed with asthma and were primarily from lower-income and minority backgrounds. Parents completed a 22-item measure of self-efficacy; factor analysis was conducted on this measure, yielding two factors: learned helplessness and self-efficacy. Correlational analyses indicated that higher scores on the learned helplessness factor were significantly related to increased asthma-related morbidity for the majority of morbidity variables. The self-efficacy factor was significantly related to days of school missed. Regression analyses conducted with the factor scores and the morbidity variables provide further support that the learned helplessness factor accounts for a significant amount of the variance in asthma morbidity for many of the variables studied, while the self-efficacy factor was related to only a few. Although improving health outcomes of children with asthma is a multifaceted process, the results of this study suggest that targeting parental self-efficacy, particularly with parents who are experiencing high levels of perceived learned helplessness, may be a helpful component of an intervention program with this population.     

Parental Self-Efficacy and Morbidity in Pediatric Asthma

This study investigated the relationship between parental self-efficacy and asthma-related morbidity. Participants included 139 parents of children (ages 5-8) who were diagnosed with asthma and were primarily from lower-income and minority backgrounds. Parents completed a 22-item measure of self-efficacy; factor analysis was conducted on this measure, yielding two factors: learned helplessness and self-efficacy. Correlational analyses indicated that higher scores on the learned helplessness factor were significantly related to increased asthma-related morbidity for the majority of morbidity variables. The self-efficacy factor was significantly related to days of school missed. Regression analyses conducted with the factor scores and the morbidity variables provide further support that the learned helplessness factor accounts for a significant amount of the variance in asthma morbidity for many of the variables studied, while the self-efficacy factor was related to only a few. Although improving health outcomes of children with asthma is a multifaceted process, the results of this study suggest that targeting parental self-efficacy, particularly with parents who are experiencing high levels of perceived learned helplessness, may be a helpful component of an intervention program with this population.