Scores of 20–25 are classified as well-controlled asthma; 16–19 as not well-controlled; and 5-15 as very poorly controlled asthma. N , total number of qualified subjects for evaluation; n (%), frequency (percentage of frequency); 95% CI, 95% confidence interval.

Of note, during the COVID-19 epidemic, 13.5% (24/178) of the patients had worried about insufficient maintenance medications, among whom 45.8% (11/24) had reduced medication dosing for this reason. After reducing medication dosing, 27.3% (3/11) of them experienced asthma aggravation. Among patients who had their prescriptions refilled during the COVID-19 epidemic, 60.6% (40/66) chose to go to a hospital, 36.4% (24/66) chose a nearby pharmacy, and 3.0% (2/66) chose to purchase online.

For patients on maintenance therapy (n=105), 93.3% (98/105) used two or even three drugs, as illustrated in Table 2. ICS plus LABA was the most commonly used therapy, followed by ICS/LABA plus oral leukotriene modifiers.

Table 2 Current maintenance therapy during the COVID-19 pandemic