Asian Pacific journal of allergy and immunology · 2023
Epidemiological, clinical and economic burden of severe eosinophilic asthma in Taiwan: Results from a large tertiary care hospital.
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Shantakumar Sumitra, Ho Yu-Fan, Tuan Li-Wen, Lin Tzu-Mei, Hershko Alon Y, Chen Yi-Hsing
Аннотация
BACKGROUND: Burden of severe eosinophilic asthma (SEA) data in Asia are limited.
OBJECTIVE: This retrospective, observational study characterized SEA epidemiology, healthcare resource use (HCRU) and costs for adult patients in Taiwan.
METHODS: Data from Taichung Veterans General Hospital electronic medical record database, between 2013 to 2016, were extracted. Eligible general asthma patients were ≥ 18 years at index date, with ≥ 1 medical claim with an asthma diagnosis after the index date. Patients with SEA (meeting additional criteria: Global Initiative for Asthma Step 4/5 treatment guidelines [within 3 months preceding index date], ≥ 2 clinically significant exacerbations, and eosinophil counts ≥ 300 cells/μL [within 12 months preceding index date] or ≥ 150 cells/μL [on index date]) and SEA patients using high-dose inhaled corticosteroids (HD ICS) were also identified. Twelve months' pre-index data were used to evaluate exacerbation frequency, treatment patterns, HCRU, and costs (2016 US Dollars).
RESULTS: Of 2,601 eligible general asthmatic patients, 162 (6.2%) met predefined criteria for SEA; of SEA patients, 72/162 (44.4%) had used HD ICS. SEA and HD ICS SEA patients experienced more clinically significant exacerbations than general asthma patients (1.6 ± 3.3 and 1.5 ± 2.6 vs 0.6 ± 2.0, p < 0.01). HD ICS SEA and SEA patients incurred at least 2-2.5-fold higher total asthma-related and all-cause costs than general asthma patients and had significantly greater HCRU.
CONCLUSIONS: Of eligible Taiwanese general asthma patients, 6.2% met predefined SEA criteria. Compared with general asthma patients, SEA and HD ICS SEA patients used more respiratory medications, experienced more exacerbations, and incurred greater HCRU and higher costs.
OBJECTIVE: This retrospective, observational study characterized SEA epidemiology, healthcare resource use (HCRU) and costs for adult patients in Taiwan.
METHODS: Data from Taichung Veterans General Hospital electronic medical record database, between 2013 to 2016, were extracted. Eligible general asthma patients were ≥ 18 years at index date, with ≥ 1 medical claim with an asthma diagnosis after the index date. Patients with SEA (meeting additional criteria: Global Initiative for Asthma Step 4/5 treatment guidelines [within 3 months preceding index date], ≥ 2 clinically significant exacerbations, and eosinophil counts ≥ 300 cells/μL [within 12 months preceding index date] or ≥ 150 cells/μL [on index date]) and SEA patients using high-dose inhaled corticosteroids (HD ICS) were also identified. Twelve months' pre-index data were used to evaluate exacerbation frequency, treatment patterns, HCRU, and costs (2016 US Dollars).
RESULTS: Of 2,601 eligible general asthmatic patients, 162 (6.2%) met predefined criteria for SEA; of SEA patients, 72/162 (44.4%) had used HD ICS. SEA and HD ICS SEA patients experienced more clinically significant exacerbations than general asthma patients (1.6 ± 3.3 and 1.5 ± 2.6 vs 0.6 ± 2.0, p < 0.01). HD ICS SEA and SEA patients incurred at least 2-2.5-fold higher total asthma-related and all-cause costs than general asthma patients and had significantly greater HCRU.
CONCLUSIONS: Of eligible Taiwanese general asthma patients, 6.2% met predefined SEA criteria. Compared with general asthma patients, SEA and HD ICS SEA patients used more respiratory medications, experienced more exacerbations, and incurred greater HCRU and higher costs.