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Factors Influencing Asthma Control: Results Of A Real-life Prospective Observational Asthma Inhaler Treatment (asit) Study
Author: Füsun Yildiz
Publisher: Derivative Works
9 pages
One time payment: €0.00
Required subscription: Free
Type of publication: Article
ISBN/ISSN: 1178-6965
DOI: 10.2147/JAA.S45269
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Description:

Background: Despite the availability of new pharmacological options and novel combinations of existing drug therapies, the rate of suboptimal asthma control is still high. Therefore, early identification of the clinical and behavioral factors responsible for poor asthma control, and interventions during routine outpatient visits to improve asthma trigger management, are strongly recommended. This study was designed to evaluate the profiles of asthmatic patients and their inhaler treatment devices in relation to asthma control in Turkey.
Methods: A total of 572 patients with persistent asthma (mean [standard deviation] age: 42.7 [12.1] years; 76% female) were included in this prospective observational study. A baseline visit (0 month, visit 1) and three follow-up visits (1, 3 and 6 months after enrolment) were conducted to collect data on demographics, past medical and asthma history, and inhaler device use.
Results: Asthma control was identified in 61.5% of patients at visit 1 and increased to 87.3% at visit 4 (P < 0.001), regardless of sociodemographics, asthma duration, body mass index or smoking status. The presence of asthma-related comorbidity had a significantly negative effect on asthma control (P= 0.004). A significant decrease was determined, in the rate of uncontrolled asthma, upon follow-up among patients who were using a variety of fixed dose combination inhalers (P < 0.001 for each). Logistic regression analysis was used to show that the presence of asthma-related comorbidity (odds ratio [OR], 0.602; 95% confidence interval [CI], 0.419; 0.863, P = 0.006) and active smoking (OR, 0.522; 95% CI, 0.330; 0.825, P = 0.005) were significant predictors of asthma control.
Conclusion: Our findings indicate that, despite ongoing treatment, asthma control rate was 61.5% at visit 1 in adult outpatients with persistent asthma. However, by the final follow-up 6 months later, this had increased to 87.3%, independent of sociodemographic and clinical characteristics. Poor asthma control was associated with asthma-related comorbid diseases, while the efficacy of fixed dose combinations was evident in the achievement of asthma control.

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