Validation of a β-agonist long-term asthma control scale derived from computerized pharmacy data

Predictors of asthma medication nonadherence

“…Others have found that IBA overuse was associated with poorer asthma control. 32 Our measure of perceived control did not demonstrate an association with IBA use. Other factors that have been associated with asthma medication nonadherence are beliefs about asthma, 33,34 doubts about the usefulness of ICS medications, 32 fear of side effects, [35][36][37][38] and, among African-Americans, distrust of the health care system.…”

Outcomes before and after treatment escalation to Global Initiative for Asthma steps 4 and 5 in severe asthma

“…Use of a bagonist has been highlighted by the GINA as an important indicator of asthma control 8 and has been used successfully in administrative claims data. 10 Oral corticosteroid use and ED and inpatient visits were used as measurements of asthma risk. These are valid measurements of asthma risk that have been assessed successfully in previous studies using administrative databases.…”

Long-term Outcomes After Stepping Down Asthma Controller Medications

“…Th e other secondary outcome we collected, Ն 2 rescue inhalers in a 4-month period, was intended to be a surrogate marker for asthma control. 9 However, over one-half of our cohort met this criteria during the 24-month outcome period ( Table 2 ). Th ese fi ndings could be interpreted to suggest that the majority of individuals who step down their asthma medication experience asthma that is not in control in the subsequent 24 months or that using rescue inhaler dispensing numbers Ն 2 in 4 months from claims data may be oversensitive as a marker for asthma control.…”

“…8 Th e number of rescue inhaler dispensing using administrative claims is associated with a measure of asthma control. 9 …”