TABLE 1

Estimates of Asthma Medication Usage Rates

Drug ClassUsage Rate, %No. of Studies
MeanMinimum25th PercentileMedian75th PercentileMaximum
Antiinflammatory drugs34.50.015.732.549.694.068
Bronchodilators27.50.269.116.944.898.034
Rescue treatment50.00.5614.152.884.196.048
  • Studies were included if they reported some measure of the proportion of children and adults with asthma who took or were prescribed a drug in 1 of the 3 classes.