| 25(OH)D | 25-hydroxyvitamin D |
| BMI | body mass index |
| CDC | Centers for Disease Control and Prevention |
| CF | cystic fibrosis |
| CFSPID | cystic fibrosis screening positive with inconclusive diagnosis |
| CFTR | CF transmembrane conductance regulator |
| ETI | Elexacaftor/Tezacaftor/Ivacaftor |
| F | female(s) |
| Iva | Ivacaftor |
| LumIva | Lumacaftor/Ivacaftor |
| M | male(s) |
| WHO | World Health Organization |
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