Abstract
BACKGROUND: Inhaled corticosteroids (ICSs) are a fundamental pillar of most regimens for long-term control of persistent asthma. Poor adherence to ICS medication is a common problem in the asthma population that can lead to poor asthma control. We hypothesized that conducting a follow-up telephone call after general pediatric clinic visits for asthma would improve refill persistence. METHODS: We conducted a prospective cohort analysis of pediatric and young adult subjects followed in our pediatric primary care clinic for asthma on ICS medication found to have poor ICS refill persistence. This cohort received a follow-up telephone outreach call 5-8 weeks after the clinic visit. The primary outcome measure was refill persistence with regard to ICS therapy. RESULTS: There were 289 subjects who met the inclusion criteria and did not meet any exclusion criteria for the study (n = 131 in the primary cohort, n = 158 in the post-COVID cohort). The mean ICS refill persistence increased significantly for subjects in the primary cohort (39.4 ± 30.8% post intervention vs 32.4 ± 19.7% pre intervention) (P = .02) but not in the post-COVID cohort (36.4 ± 25.6% post intervention vs 38.9 ± 21.0% pre intervention) (P = .26). There was not a statistically significant change in hospitalizations after the intervention in either the primary or the post-COVID cohorts (P = .08 and .07, respectively). Systemic corticosteroid courses and emergency department visits decreased significantly post intervention (P = .01 and P = .004, respectively) in the primary group but not in the post-COVID group (P = .75 and P = .16, respectively). CONCLUSIONS: These results suggest that telephone outreach after out-patient clinic visits for asthma may have short-term benefit in ICS refill persistence; however, the effect size was small.