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. 2023 Nov 22;23(1):463.
doi: 10.1186/s12890-023-02685-0.

Medical resource utilization and the associated costs of asthma in China: a 1-year retrospective study

Xueer Yang #  1 , Tiantian Zhang #  1   2   3 , Xuanyi Yang  1 , Jie Jiang  1 , Yuwen He  4 , Pei Wang  5   6
Affiliations

Medical resource utilization and the associated costs of asthma in China: a 1-year retrospective study

Xueer Yang et al. BMC Pulm Med. .

Abstract

Background: Despite evidence that severe and poorly controlled asthma are associated with more clinical unmet needs and intensive utilization of healthcare resources, limited data is available on severe asthma expenditure in China. The study aimed to assess Medical Resource Utilization (MRU) costs of asthma and explore the cost drivers in order to better understand the economic burden of the Chinese population suffered from asthma.

Methods: A retrospective analysis was conducted using Chinese sampled national claim database. Patients aged 6 years and above with primary diagnosis of asthma and asthma-related medical visit/hospitalization during 2015 were included. Medication was used as a proxy per the GINA and China guideline to identify asthma severity (i.e. mild, moderate, and severe). multiple linear regression model was conducted to identify MRU costs drivers.

Results: 7,254 patients diagnosed with asthma were included: 4,529 (62.4%), 2,200 (30.3%), and 525 (7.2%) had mild, moderate, and severe asthma, respectively. On average, each severe patient spent 6,782 Chinese Yuan (CNY) on asthma treatment and had 57.0% hospitalization rate during the year, 3.9- and 4.4-fold of the average of overall population (P < 0.001 for both). The proportion of patients experiencing exacerbation significantly higher in the severe asthma population (66.5%; P < 0.001) compared to mild (30.0%) and moderate (16.8%) groups. In subgroup with 1,660 samples had annual consecutive data, severe patients had annual cost of CNY 8,314 and 52.2% hospitalization rate. 13% of severe patients who had frequent severe exacerbation (≥ 2 events) experienced the highest annual average cost CNY 23,037, P < 0.001) whereas children aged from 6 to 14 with a lower annual cost of CNY 1,094.2, 1,660.2 and 3,020.2 for mild, moderate, and severe patients respectively. The multiple model identified degree of severity, control status, complications, age, and live region as independent drivers of MRU costs.

Conclusions: Chinese asthma patients bear heavy economic burden. Severe asthma associated with higher MRU (mainly from hospitalization) and costs compared with mild to moderate asthma in China. More efforts should be devoted to the control of the disease severity and complication as the main drivers of asthma cost.

Keywords: Asthma; Costs and cost analysis; Economic burden.

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Conflict of interest statement

The authors declare no competing interests.

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