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[The level of asthma control in China from a national asthma control survey]
1Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China.
Insights
Asthma control in urban China improved slightly but remains suboptimal, affecting over a quarter of patients. Poorly controlled asthma leads to increased hospitalizations, emergency visits, and missed work or school days.
Area of Science:
- Pulmonary Medicine
- Epidemiology
- Public Health
Background:
- Asthma remains a significant public health concern globally.
- Effective asthma control is crucial for patient quality of life and reducing healthcare burden.
- Understanding asthma control levels in diverse populations is essential for targeted interventions.
Purpose of the Study:
- To evaluate the current asthma control status among adult asthmatic outpatients in urban China.
- To identify factors associated with asthma control and its impact on healthcare utilization and daily life.
- To compare current asthma control levels with previous findings in selected Chinese cities.
Main Methods:
- A multi-center, cross-sectional survey involving 3,875 asthmatic outpatients across 30 Chinese provinces.
- Data collected via face-to-face interviews covering demographics, asthma control (GINA 2015 criteria), management, exacerbations, and self-management.
- Analysis included prevalence of controlled asthma, rates of hospitalizations, emergency visits, and work/school absences.
Main Results:
- Overall asthma control prevalence was 28.5%.
- In 10 cities surveyed previously, asthma control improved from 28.7% (2008) to 39.2% (2016).
- Significant rates of hospitalizations (26.4%), emergency visits (22.4%), and work/school absences (18.4% adults, 63.6% adolescents) were reported.
Conclusions:
- Asthma control in urban China shows improvement but is not yet ideal.
- Poorly controlled asthma significantly contributes to increased healthcare utilization and disruptions in daily life.
- Further efforts are needed to enhance asthma management and control strategies nationwide.
Abstract:
Objective: To assess the overall asthma control level in urban China. Methods: A multi-center, cross-sectional, questionnaire-based survey was carried out in 30 provinces in China (except Tibet). Asthmatic outpatients who met the inclusion criteria were recruited consecutively from 30 sub-centers from October 2015 to May 2016. Data of demographic characteristics, asthma control, asthma management, asthma exacerbations and self-management, and disease perception were collected by face-to-face interviews. Results: Totally 3 875 asthmatic outpatients were recruited. Asthma control level was assessed according to GINA 2015. The prevalence of asthma control was 28.5%(1 099/3 854). Among 10 cities, which were also involved in the asthma control survey in 2008, the level of asthma control improved from 28.7% in 2008 to 39.2%(533/1 361) in 2016. The rate of hospitalizations due to asthma exacerbations was 26.4%(1 017/3 858) and the rate of emergency visits was 22.4%(864/3 858). Among adult patients, 18.4%(568/3 092) of them had been absent from work while 63.6%(63/99) adolescent patients had been absent from school because of asthma attacks in the previous year. Conclusion: Although the level of asthma control in China is still far from ideal at present, the status has been improved in some cities. Poorly controlled asthma resulted in increase of hospitalizations, emergency department visits and work/school absences.
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