Type-2 inflammation and lung function decline in chronic airway disease in the general population

© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ..

BACKGROUND: It is unclear if type-2 inflammation is associated with accelerated lung function decline in individuals with asthma and chronic obstructive pulmonary disease (COPD). We tested the hypothesis that type-2 inflammation indicated by elevated blood eosinophils (BE) and fraction of exhaled nitric oxide (FeNO) is associated with accelerated lung function decline in the general population.

METHODS: We included adults from the Copenhagen General Population Study with measurements of BE (N=15 605) and FeNO (N=2583) from a follow-up examination and assessed forced expiratory volume in 1 s (FEV1) decline in the preceding 10 years. Based on pre- and post-bronchodilator lung function, smoking history and asthma at follow-up examination, participants were assigned as not having airway disease, asthma with full reversibility (AR), asthma with persistent obstruction (APO), COPD, and not classifiable airflow limitation (NAL).

RESULTS: FEV1 decline in mL/year increased with 1.0 (95% CI 0.6 to 1.4, p<0.0001) per 100 cells/µL higher BE and with 3.2 (95% CI 2.0 to 4.5, p<0.0001) per 10 ppb higher FeNO. Adjusted FEV1 decline in mL/year was 18 (95% CI 17 to 20) in those with BE<300 cells/µL and FeNO<20 ppb, 22 (19-25) in BE≥300 cells/µL or FeNO≥20 ppb, and 27 (21-33) in those with BE≥300 cells/µL and FeNO≥20 ppb (p for trend<0.0001). Corresponding FEV1 declines were 24 (19-29), 33 (25-40) and 44 (31-56) in AR (0.002), 26 (14-37), 36 (12-60) and 56 (24-89) in APO (0.07), 32 (27-36), 31 (24-38) and 44 (24-65) in COPD (0.46), and 27 (21-33), 35 (26-45), and 37 (25-49) in NAL (0.10), respectively.

CONCLUSIONS: Type-2 inflammation indicated by elevated BE and FeNO is associated with accelerated FEV1 decline in individuals with chronic airway disease in the general population, and this association was most pronounced in an asthma-like phenotype.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:79

Enthalten in:

Thorax - 79(2024), 4 vom: 15. März, Seite 349-358

Sprache:

Englisch

Beteiligte Personen:

Çolak, Yunus [VerfasserIn]
Afzal, Shoaib [VerfasserIn]
Marott, Jacob Louis [VerfasserIn]
Vestbo, Jørgen [VerfasserIn]
Nordestgaard, Børge Grønne [VerfasserIn]
Lange, Peter [VerfasserIn]

Links:

Volltext

Themen:

31C4KY9ESH
Asthma Epidemiology
Asthma Mechanisms
COPD Pathology
COPD epidemiology
Clinical Epidemiology
Journal Article
Nitric Oxide

Anmerkungen:

Date Completed 18.03.2024

Date Revised 24.03.2024

published: Electronic

Citation Status MEDLINE

doi:

10.1136/thorax-2023-220972

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM366862421