Shiva G. Sajjan, PhD

Even small changes in average copayment for long-term controller asthma medications can result in significant reductions in medication use and increases in healthcare services.

HEDIS-defined persistent asthma is generally consistent with survey-defined persistent asthma over a 3-year period.

Fewer short-acting agonist canisters dispensed (but not dispensing of any controller) and higher ratio of controller to total medication are associated with reduced asthma exacerbations.