Asthma Control and Quality of Life Outcomes by Standard vs Nonstandard Inhaler Names
Non-Standard versus standard Inhaler Name Use | |||
---|---|---|---|
Effect size | 95% CI | p-Value | |
ACT | −0.58 | −1.12 to −0.04 | 0.0372 |
ASUI | −0.04 | −0.07 to −0.01 | 0.0022 |
APGAR | 0.28 | 0.06 to 0.51 | 0.0142 |
Notes: Data shown compare asthma control and quality of life survey scores for participants who use non-standard inhaler names relative to those who use standard inhalers names. These are the results of multivariable linear regression models, controlling for age, gender, ethnicity, BMI, region, smoking environment, years diagnosed with asthma, and asthma controller regimen.
Abbreviations: ACT, Asthma Control Test®24; APGAR, asthma Activities, Persistent triGgers, Asthma medications and Response to therapy)32; ASUI, Asthma Symptom Utility Index33; BMI, body mass index; CI, confidence interval. The ACT is a self-administered survey that assesses asthma control levels, with total score ranging from 5 to 25, and a minimal clinically important difference of 3 points; scores of 20–25 indicate well-controlled asthma, 16–19 not well-controlled asthma, and 5–15 very poorly controlled asthma. The ASUI is a self-administered survey that assesses preference-based quality of life, with minimal clinically important difference of 0.09 points, and scores ranging from 0 (worst symptoms) to 1 (no symptoms). The asthma APGAR has 3 questions related to activity limitations and daytime and nighttime asthma symptoms, with total score ranging from 0 to 6, where a total score >2 represents uncontrolled asthma.