Asthma Medication Adherence Research Articles

Improving asthma self-management education through inhaler labeling

ObjectiveImproper use and poor understanding of asthma medications can lead to poorly controlled asthma, emergency department visits, and hospitalizations for children with asthma. Pharmacists play a critical role in improving asthma medication adherence through education on asthma self-management. The use of color-coded labels applied at pharmacies to help patients differentiate between rescue and maintenance inhalers has not been explored. MethodsPharmacies were recruited to join a community pharmacy asthma coalition. Pharmacists provided patient education and labeled inhalers with two types of color-coded stickers. A red sticker labeled “RESCUE” was used for short-acting β-2 agonist medication inhalers. A green sticker labeled “USE EVERY DAY” was used for inhaled corticosteroids (ICS) or combination ICS/long-acting β-2 agonist medication inhalers. ResultsDuring the two years of the pilot program, 25 pharmacy locations participated. Pharmacies labeled over 6000 rescue and 9000 controller medications using color-coded labels. Over 1000 children and 7000 adults were served by the coalition. ConclusionColor-coded asthma medication labels can be successfully utilized by pharmacies. This low-cost tool provides vital information regarding the proper use of asthma medications. InnovationThe color-coded labeling of asthma medications is a novel innovation that can be successfully used by pharmacists to improve asthma self-management education.

Asthma medication adherence, control, and psychological symptoms: a cross-sectional study

BackgroundNonadherence to therapies and psychological disorders are associated with poor asthma control. This study aims to assess the prevalence of anxiety and depressive symptoms, asthma control, and adherence to inhalers and to investigate whether there is an association of anxiety and depressive symptoms with adherence to inhalers and asthma control.MethodsWe measured anxiety and depressive symptoms using the Hospital Anxiety and Depression Scale in patients with asthma. Asthma Control Test and the 10-Item Test of Adherence to Inhalers Scale were used to assess levels of asthma control adherence to inhalers, respectively. Univariate and multivariate regression models assessed the associations of anxiety and depressive symptoms with adherence to inhalers and asthma control.ResultsA total of 287 patients completed the study, of whom 72% were female. The mean ± SD age and body mass index of our study population were 44 ± 13 years and 29 ± 7.2 kg/m2, respectively. Poor adherence to inhaler use was highly prevalent (49.8%; 95% CI: 43.8 to 55.7). The prevalence of anxiety, depression and poor asthma control was 27.2% (95% CI: 22.1 to 32.7), 20.9% (95% CI: 16.3 to 26.1), and 22.7% (95% CI: 17.9 to 27.9), respectively. We found a negative relationship between asthma control and anxiety, and depressive symptoms (adjusted β: -0.25; 95% CI: -0.36 to -0.14; p < 0.001 and adjusted β: -0.29; 95% CI: -0.40 to -0.18; p < 0.001, respectively). A negative relationship was also observed between adherence to inhalers and anxiety and depressive symptoms (adjusted β: -0.34; 95% CI: -0.46 to -0.22; p < 0.001 and adjusted β: -0.36; 95% CI: − 0.48 to − 0.24; p < 0.001, respectively).ConclusionsThe high prevalence of uncontrolled asthma symptoms and poor adherence to inhalers and their impact on anxiety and depression levels among patients with asthma point to the need for early screening for psychological symptoms and recognition of nonadherence as part of asthma assessment and management plan in primary care in Saudi Arabia to avoid further worsening of asthma symptoms. Further studies are needed to explore the effectiveness of specific psychoeducational interventions and investigate the long-term impact of early psychological symptom detection on asthma outcomes.

The effects of race, ethnicity, and gender on predictors of asthma medication adherence among early high school students

ABSTRACT We evaluated the moderating effects of gender on predictors of asthma medication adherence, and whether the moderating effects of gender differed by race and ethnicity. Adolescents with asthma(N = 62) on daily medication and their caregivers were enrolled in a longitudinal investigation of family asthma management across the transition to high school. Participants were on average 13.7 years old (SD = 0.6) and 62.7% were male. Forty percent were non-Latino white (NLW), 23.7% Black/African American, and 37.3% Latino. Adherence was objectively monitored. Family cohesion and medication beliefs were assessed at 8th and 10th grades. Favorable medication beliefs were associated with higher adherence among males, and higher family cohesion was related to higher adherence among females. Gender effects were moderated by race and ethnicity. Males had lower adherence than females among NLW participants and Latino participants. Among Black participants, males had higher adherence relative to females. Intersectional aspects of adolescent race, ethnicity, and gender may relate to medication adherence during the high school transition.

Participant Perspectives on the Implementation of a School-Linked Text-Message Intervention to Improve Pediatric Asthma Medication Adherence.

Background: Poor adherence to inhaled corticosteroids (ICS) is a significant challenge in pediatric asthma, contributing to health inequities. Text-message reminders for ICS therapy are an evidence-based approach that improves pediatric asthma medication adherence, yet has not been widely adopted into practice, partly due to lack of (1) participant input on design and implementation and (2) use of sustainable community linkages. Remote Asthma Link™ (RAL) seeks to fill this gap as a school-linked text-message intervention wherein parents of children with poorly controlled asthma received daily, 2-way text-message reminders for preventive inhaler use. Responses were shared with school nurses who conducted remote check-ins with families. Enrolled children, largely from underserved backgrounds, experienced improvements in medication adherence and asthma health outcomes. While initial results were promising, we have yet to elicit participant input to refine the protocol for more widespread implementation. Objective: Examine participant perspectives on barriers and facilitators of RAL implementation. Methods: Semistructured interviews were conducted May-June 2022 with intervention participants: 10 parents, 7 school nurses, and 4 pediatric providers (n = 21) until thematic saturation was reached. Interview transcripts were coded using thematic analysis. Results: Several facilitators for RAL implementation were identified, including ease of use and accessibility, personal connection to the school nurse, and receipt of a visual notification for habit formation. Barriers included challenges with school nurses reaching parents, poor understanding of program expectations, and lack of reimbursement structure. Participant-proposed solutions to barriers included utilizing alternate communication methods (eg, social media), educational sessions, and meeting with payors to consider reimbursement models. Conclusion: RAL is a school-linked text-message intervention demonstrating promise in improving outcomes and equity in asthma care. Key implementation facilitators, barriers, and proposed solutions will inform protocol adaptations to promote successful implementation of this and other text-message interventions into clinical practice.

Therapeutic drug monitoring of corticosteroids/β2-agonists in the hair of patients with asthma: an open-label feasibility study.

Background: Although adherence to inhaled medication is critically important for treatment efficiency, around half of patients taking these drugs are non-adherent or make critical errors when using their delivery device. Segmental hair analysis might be a valuable tool for therapeutic monitoring because hair concentrations reflect exposure from month to month. The objective of the present proof-of-concept study was to establish the feasibility of segmental hair analysis of inhaled budesonide and formoterol in asthma patients. Methods: We conducted a prospective, open-label, interventional study of adult patients being treated with budesonide/formoterol for controlled, moderate-to-severe asthma (CorticHair, NCT03691961). Asthma control, lung function, and medication adherence were recorded. Hair samples were taken 4 months after enrolment and cut into four 1cm segments. Results: Samples were available from 21 patients (20 women; median age: 53; median budesonide dose: 600μg/d). Budesonide and formoterol were detected in samples from 18 to 13 patients, respectively. The median hair concentrations were 6.25pg/mg for budesonide and 0.9pg/mg for formoterol. The intrapatient coefficient of variation between hair segments was 21% for budesonide and 40% for formoterol. Pearson's coefficients for the correlations between the hair concentration and the self-reported drug dose and the prescribed drug dose were respectively 0.42 (p = 0.08) and 0.29 (p = 0.25) for budesonide and 0.24 (p = 0.44) and 0.17 (p = 0.57) for formoterol. Conclusion: Segmental hair analysis of inhaled medications was feasible, with low intrapatient variability. This innovative, non-invasive means of assessing monthly drug exposure might help physicians to personalize drug regimens for patients with difficult-to-treat asthma.

Cost-Effectiveness and Impact on Health Care Utilization of Interventions to Improve Medication Adherence and Outcomes in Asthma and Chronic Obstructive Pulmonary Disease: A Systematic Literature Review

BackgroundPoor adherence to asthma and chronic obstructive pulmonary disease (COPD) maintenance therapies impairs health outcomes. Proven and cost-effective programs to promote adherence and persistence are not yet in widespread, regular use. Implementation costs are a potential barrier to uptake of such programs. ObjectiveWe undertook a systematic literature review and narrative synthesis of studies investigating the cost-effectiveness of treatment adherence-promoting programs or that determined their impact on healthcare budget directly or via healthcare resource utilization (HCRU). MethodsWe identified relevant publications using MEDLINE and PREMEDLINE (PubMed), EMBASE (Embase.com, Elsevier) and EconLit for publications between January 2000 and July 2021. Clinical trial databases and selected conference proceedings were also searched. ResultsOf 1,910 potentially relevant articles, 26 met prespecified inclusion criteria and underwent data extraction. Eleven reported a direct assessment of adherence, 15 included economic evaluations, and 17 described HCRU. None included analysis of biologic medication use. Where studied, interventions were often found to be highly cost-effective, with dominant incremental cost-effectiveness ratios in some cases. Reductions in direct costs and HCRU – healthcare visits, hospital admissions and/or the use of medications (including add-on/reliever treatment and antibiotics) – were reported frequently. Reported use of maintenance treatments improved in some studies. Counseling and/or digitally informed programs were used in all cases where favorable outcomes were observed. ConclusionAdherence-promoting interventions are mostly cost-effective and often result in reduced HCRU and associated costs. Multidisciplinary care involving one-to-one advice and digitally enhanced communications appear to offer the greatest benefit.

Adherence to inhalers in patients with severe asthma treated with anti-interleukin-5 biologics

ObjectiveGiven poor medication adherence in severe asthma is difficult to evaluate in daily practice, using at least two methods concurrently is recommended. We aimed to determine the prevalence of nonadherence to inhalers using the Test of Adherence to Inhalers questionnaire and the medication possession ratio obtained from the pharmacy refill data in patients with severe asthma treated with anti-interleukin-5 biologics and to evaluate their concordance. MethodThis was a cross-sectional retrospective observational study of 53 patients with severe asthma recruited from the severe asthma unit of a tertiary hospital in Madrid from June to December 2020. We registered demographic data, comorbidities and concomitant therapy for asthma. Nonadherence was defined as pharmacy refill data < 80% and/or Test of Adherence to Inhalers questionnaire results < 50. Concordance was assessed by determining the Cohen's kappa statistic. ResultsThe median age was 61 years (interquartile range 51.8–67.0), and 33 (61%) were women. According to the pharmacy refill data lack of adherence to the primary inhaler was 58.5%. However, when using the Test of Adherence to Inhalers questionnaire, it was 22.6%. Combining both methods, 17% of patients were considered to have nonadherence to inhalers. Likewise, when identifying nonadherence by either of these methods, it reached a prevalence of 64.2%. The pharmacy refill data and Test of Adherence to Inhalers questionnaire agreed in 53.1% and disagreed in 46.9% of patients (k = 0137; 95% confidence interval -0.057 to 0.331; p = 0.318). ConclusionsWe observed a higher prevalence of non-adherence to inhalers in patients with severe asthma treated with anti-interleukin-5 biologics. The agreement between the Test of Adherence to Inhalers questionnaire and the pharmacy refill data is lower when evaluating nonadherence in patients with severe asthma treated with anti-interleukin-5 biologics. The pharmacy refill data detect a higher proportion of nonadherence compared with the Test of Adherence to Inhalers questionnaire.

Online Survey to Investigate Asthma Medication Prescription and Adherence from the Perspective of Patients and Healthcare Practitioners in England [Letter

Online Survey to Investigate Asthma Medication Prescription and Adherence from the Perspective of Patients and Healthcare Practitioners in England [Letter

Online Survey to Investigate Asthma Medication Prescription and Adherence from the Perspective of Patients and Healthcare Practitioners in England.

High short-acting β2-agonist (SABA) use and/or inhaled corticosteroid (ICS) underuse are common and are associated with poor asthma outcomes. This study explored patients' and healthcare practitioners' (HCPs') perspectives to contextualize asthma treatment patterns observed in real-world studies. Data were collected using online surveys from HCPs and people with asthma (≥18 years old with a confirmed asthma diagnosis of any severity) who had consented to research participation through the Clinical Practice Research Datalink. Data were analysed using descriptive statistics. In total, 76 HCPs and 63 patients were invited to take part. Of 48 valid HCP responders, 54.2% (n=26) reported scheduling an annual asthma treatment review with their patients and 83.3% of general practitioners (n=40) had prescribed repeated inhalers at the patient's request. Of 47 valid patient responders, 57.4% (n=27) reported using their reliever (SABA) inhaler daily and 55.3% of patients (n=26) reported being prescribed a preventer inhaler. Of the total patient responders, 31.9% (n=15) reported that they never used their preventer inhaler. Consistent annual adherence with preventer inhalers was reported by 44.7% of all valid responders (n=21), while other patients admitted to using preventers intermittently. SABA and ICS prescription patterns are driven by a combination of HCP and patient factors. Opportunities exist to improve asthma control and behaviours around inhaler use.

Preference for and impact of telehealth vs in-person asthma visits among Black and Latinx adults

BackgroundBlack and Latinx adults experience disproportionate asthma-related morbidity and limited specialty care access. The severe acute respiratory syndrome coronavirus 2 pandemic expanded telehealth use. ObjectiveTo evaluate visit type (telehealth [TH] vs in-person [IP]) preferences and the impact of visit type on asthma outcomes among Black and Latinx adults with moderate-to-severe asthma. MethodsFor this PREPARE trial ancillary study, visit type preference was surveyed by e-mail or telephone post-trial. Emergency medical record data on visit types and asthma outcomes were available for a subset (March 2020 to April 2021). Characteristics associated with visit type preferences, and relationships between visit type and asthma outcomes (control [Asthma Control Test] and asthma-related quality of life [Asthma Symptom Utility Index]), were tested using multivariable regression. ResultsA total of 866 participants consented to be surveyed, with 847 respondents. Among the participants with asthma care experience with both visit types, 42.0% preferred TH for regular checkups, which associated with employment (odds ratio [OR] = 1.61; 95% confidence interval [CI], 1.09-2.39; P = .02), lower asthma medication adherence (OR = 1.06; 95% CI, 1.01-1.11; P = .03), and having more historical emergency department and urgent care asthma visits (OR = 1.10 for each additional visit; 95% CI, 1.02-1.18; P = .02), after adjustment. Emergency medical record data were available for 98 participants (62 TH, 36 IP). Those with TH visits were more likely Latinx, from the Southwest, employed, using inhaled corticosteroid–only controller therapy, with lower body mass index, and lower self-reported asthma medication adherence vs those with IP visits only. Both groups had comparable Asthma Control Test (18.4 vs 18.9, P = .52) and Asthma Symptom Utility Index (0.79 vs 0.84, P = .16) scores after adjustment. ConclusionTH may be similarly efficacious as and often preferred over IP among Black and Latinx adults with moderate-to-severe asthma, especially for regular checkups. Trial RegistrationClinicalTrials.gov Identifier: NCT02995733.

Asthma medication use and health care utilization evolution during pandemic times.

Pediatric asthma care was significantly impacted by the Coronavirus Disease (COVID-19) pandemic, with significant decline in asthma health care utilization noted early in the pandemic. We compared Emergency Department (ED) utilization rates and prescription fill rates of controller and quick relief asthma medications between March and December 2020 versus 2021 in a county-specific pediatric Medicaid population to evaluate for changes later in the pandemic. Our data showed an increase in ED utilization by 46.7% (p-.0371) in the second year of the pandemic. There was no significant change in prescription fills for reliever medications (p-.1309) during this time with increased ED utilization for asthma but there was a significant decline in controller medication fills (p-.0039). This data suggests a potential explanation for resurgence of asthma health care utilization because of decreased controller medication fill and use during a time frame that also saw increased viral positivity rates. The poor medication adherence rates despite this increase in ED visits suggests that new interventions may be needed to assist patients with asthma medication adherence.

Exploring the nexus: Asthma prevalence, smoking habits, and medication adherence among urban slum dwellers of Delhi

Abstract BACKGROUND: Asthma is chronic lung disease. Reducing exposure to tobacco smoke is vital for both primary prevention of asthma and disease management. Adherence to medical advice is crucial for the effectiveness of treatments. This research explores the connected dynamics of smoking habits, asthma prevalence, and medication adherence among urban slum dwellers. METHODS: A door-to-door survey was conducted in two urban slums of Delhi, employing a random sampling method to study 318 households comprehensively. Two proficient research volunteers administered a questionnaire designed to assess smoking habits, asthma prevalence, adherence to prescribed medications, and devices used by individuals with asthma. RESULTS: The overall prevalence of asthma was found at 1.6%, with gender-specific rates of 0.9% and 0.7% for males and females, respectively, with a mean age of 35.62 years (standard deviation = 15.93) in the population of 1376 individuals. Within the cohort of asthmatic patients, 13.6% exhibited severe asthma. Despite their asthma diagnosis, 9.1% were current active smokers, and 18.2% transitioned to the use of smokeless tobacco. The odds ratio for being asthmatic in smokers as compared to nonsmokers was 2.11 (95% confidence interval: 0.81–5.46, P = 0.1224). A significant proportion of patients displayed lapses in adhering to prescribed medication regimens. CONCLUSION: The current study sheds light on a concerning trend of negligence observed in both medical adherence and smoking habits among asthmatic patients. The findings underscore the imperative for targeted interventions and educational initiatives aimed at enhancing adherence to medical regimens and mitigating smoking behaviors within this vulnerable patient population. Addressing these factors is pivotal for enhancing comprehensive asthma management, alleviating associated risks, and promoting more favorable long-term health outcomes.

Anticipated barriers and facilitators for implementing smart inhalers in asthma medication adherence management

Smart inhalers are electronic monitoring devices which are promising in increasing medication adherence and maintaining asthma control. A multi-stakeholder capacity and needs assessment is recommended prior to implementation in healthcare systems. This study aimed to explore perceptions of stakeholders and to identify anticipated facilitators and barriers associated with the implementation of smart digital inhalers in the Dutch healthcare system. Data were collected through focus group discussions with female patients with asthma (n = 9) and healthcare professionals (n = 7) and through individual semi-structured interviews with policy makers (n = 4) and smart inhaler developers (n = 4). Data were analysed using the Framework method. Five themes were identified: (i) perceived benefits, (ii) usability, (iii) feasibility, (iv) payment and reimbursement, and (v) data safety and ownership. In total, 14 barriers and 32 facilitators were found among all stakeholders. The results of this study could contribute to the design of a tailored implementation strategy for smart inhalers in daily practice.

Asthma medication adherence during the coronavirus disease 2019 pandemic in children at high risk of exacerbation

Asthma medication adherence during the coronavirus disease 2019 pandemic in children at high risk of exacerbation

The impact of unsupervised and unconsented switch of inhalers in patients with controlled asthma - A targeted literature review.

Inhaler combination formulations consisting of an inhaled corticosteroid (ICS) (fluticasone propionate) and a long-acting β2 agonist (salmeterol xinafoate) are indicated as maintenance treatments for patients with asthma and/or for selected patients with chronic obstructive pulmonary disease. The emergence of generic equivalents to branded inhalers is expected to offer economic edge/savings; however, some may argue that cost advantages offered by generic inhalers may be offset by worsening outcomes due to improper inhaler use, reduced adherence, and consequently worse disease control. To understand how unsupervised and unconsented switch of dry-powder inhalers and/or metered-dose inhalers affects clinical and humanistic outcomes in asthma, comprehensive searches of Embase and MEDLINE were conducted to identify research articles published in the English language since 2011. Patients with asthma of any age who underwent an unsupervised and unconsented switch from an ICS/long-acting β2 agonist to another (brand-to-generic or brand-to-brand) for non-medical reasons were the target of this research. Relevant outcomes included asthma control, medication adherence, and healthcare resource utilization. In total, 11 studies were identified for review (ten non-interventional and one post hoc); cohorts ranged from 19 to 42,553 patients. Six studies indicated that unsupervised and unconsented inhaler switch had a negative impact on asthma control; six studies indicated reduced medication adherence post-switching; and five studies reporting healthcare resource utilization showed it was unchanged or increased post-switching. Findings from this targeted review support concerns that unsupervised and unconsented inhaler switch has a largely negative impact on asthma-associated outcomes. Additional studies are warranted to further explore unsupervised and unconsented switch in asthma.

AI Sound Recognition on Asthma Medication Adherence: Evaluation With the RDA Benchmark Suite

Asthma is a common, usually long-term respiratory disease with negative impact on global society and economy. Treatment involves using medical devices (inhalers) that distribute medication to the airways and its efficiency depends on the precision of the inhalation technique. There is a clinical need for objective methods to assess the inhalation technique, during clinical consultation. Integrated health monitoring systems, equipped with sensors, enable the recognition of drug actuation, embedded with sound signal detection, analysis and identification from intelligent structures, that could provide powerful tools for reliable content management. Health monitoring systems equipped with sensors, embedded with sound signal detection, enable the recognition of drug actuation and could be used for effective audio content analysis. This paper revisits sound pattern recognition with machine learning techniques for asthma medication adherence assessment and presents the <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Respiratory and Drug Actuation (RDA)</i> Suite <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><i>a</i></sup> for benchmarking and further research. The RDA Suite includes a set of tools for audio processing, feature extraction and classification procedures and is provided along with a dataset, consisting of respiratory and drug actuation sounds. The classification models in RDA are implemented based on conventional and advanced machine learning and deep networks’ architectures. This study provides a comparative evaluation of the implemented approaches, examines potential improvements and discusses on challenges and future tendencies.

The Effect of Internet Addiction on Asthma Control and Medication Adherence

The Effect of Internet Addiction on Asthma Control and Medication Adherence

Beliefs about medicines and adherence to asthma medications during pregnancy

Objective Discontinuation of, and non-adherence to, inhaled corticosteroids (ICS) for asthma treatment is a significant issue in pregnancy. This study characterized beliefs about medicines in pregnant women with asthma and investigated associations with ICS adherence. Methods Pregnant women with relatively mild asthma (n = 302) were grouped according to ICS use and self-reported adherence (≥80% doses taken). They completed questions about dislike of asthma medications and the validated Beliefs about Medicines Questionnaire (BMQ), which consists of ten questions about asthma medicines (“necessity” questions about maintaining health, or “concern” questions about adverse effects), and eight general medicine questions, scored on five-point Likert scales. The Necessity Concerns differential (N-C) was calculated, with positive scores indicating that the patient perceives the benefits of medicines to outweigh the risks. Results ICS was used by 87 (29%) women, with 49 (56%) self-reporting adherence. Of the 22% who disliked taking asthma medications during pregnancy, 20% had the belief that the medication was unsafe. ICS users had a significantly higher BMQ necessity score and higher necessity-concern differential score than nonusers; when adjusted for covariates, ICS non-adherence was associated with a lower necessity score (p = 0.015). Women adherent to ICS were more likely to agree to “my health at present depends on my asthma medication” compared to non-adherent ICS users. Conclusions ICS non-adherence was not associated with having relatively more concerns about asthma medicines; however, ICS users were more likely to perceive that the benefits of medication use outweighed any risks. Interventions to improve asthma medication adherence in pregnancy are needed.

Acute severe asthma in emergency department: clinical characteristics, risk factors, and predictors for poor outcome

BackgroundSevere asthma exacerbation can be a frightening experience to the patient and physician. Despite continuous efforts to frame management guidelines and advances in treatment, severe exacerbations still occur. In order to prevent and judicious management of asthma exacerbations, we should predict them first. This study aims to evaluate distinct clinical trajectories and management outcome of patients with severe asthma exacerbations and also evaluate predictors for poor outcome.MethodsPatients suffering from acute asthma exacerbation and presented to emergency room (forty patients) were grouped into 2 groups (groups A and B) according to severity of exacerbation. Assessment included full clinical history, laboratory investigations (including eosinophil cell count and serum IgE level), Beck’s anxiety and depression inventory scales, assessment of asthma medication adherence and control level, and peak expiratory flow measurement (at presentation, 1 and 6 h after).ResultsFifty-five percent of patients suffered from severe and life-threatening asthma exacerbations, 63.6% of them were females. The most important predictors for severe exacerbations were SO2 < 90% at baseline (OR = 4.56; 95% CI = 3.45–7.56; P < 0.001), PEFR after 1 h (OR= 3.34; 95%CI = 1.90–4.90; P < 0.001), and uncontrolled asthma (OR= 3.33; 95%CI = 2.50–5.05; P < 0.001). Predictors for hospitalization were old age (OR = 1.11; 95%CI = 1.09–2.11; P < 0.001), uncontrolled asthma (OR = 2.34; 95%CI = 2.01–4.40; P < 0.001), PEFR after 1 h (OR= 4.44; 95%CI= 3.24–7.68; P < 0.001), and SO2 <90% at baseline (OR= 5.67; 95%CI= 3.98–8.50; P < 0.001).ConclusionsSevere asthma exacerbations can be predicted by old age, previous history of mechanical ventilation, obstructive sleep apnea, overuse of SABA, uncontrolled asthma, moderate to severe depression, eosinophilia, SO2 <90%, and low peak expiratory flow rates.

Factors associated with medication adherence among adults with asthma

Objective Asthma medication adherence is of crucial importance for successful disease management. The aim of this study was to identify and rank factors associated with medication adherence among adults with asthma in the general population. Methods We used data on physician-diagnosed asthma, medication adherence, and factors associated with asthma medication adherence from the Danish General Suburban Population Study using a cross-sectional study design. We ranked factors associated with asthma medication adherence based on the magnitude of odds ratios, and the population attributable fractions. Results Among 20,032 individuals from the general population, 1,128 (6%) suffered from asthma and 822 (73%) of these were adherent to asthma medications. Based on odds ratios, the three top-ranked factors associated with asthma medication adherence were asthma attacks within the past year (4.0; 95% CI: 2.9–5.5), allergy medication use (3.8; 2.6–5.6), and age above median (3.4; 2.4–4.7), followed by asthma severity markers like airway obstruction, and coughing with mucus. Based on population attributable fractions, the three top-ranked factors associated with adherence to asthma medications were asthma attacks within the past year (70%), age above median (57%), and use of allergy medication (49%). Conclusions The study showed that in the general population recent asthma attacks, higher age, and taking allergy medication were the three most important factors associated with asthma medication adherence. The importance of maintaining adherence to asthma medications even in the absence of severe disease or expressed asthma symptoms should be better communicated to the general population.