| BMI | Body mass index |
| FEV1 | Forced expiratory volume in 1 s |
| FeNO | Exhaled nitric oxide |
| ICS | Inhaled corticosteroids |
| LABA | Long-acting beta-agonists |
| preBD | Pre-bronchodilation |
| postBD | Post-bronchodilation |
| OCS | Oral corticosteroids |
| RT-qPCR | Quantitative reverse transcription PCR |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.