Please use this identifier to cite or link to this item: https://ahro.austin.org.au/austinjspui/handle/1/35554
Title: Epidemiology and Prognostic Significance of Cough in Fibrotic Interstitial Lung Disease.
Austin Authors: Khor, Yet H ;Johannson, Kerri A;Marcoux, Veronica;Fisher, Jolene H;Assayag, Deborah;Manganas, Helene;Khalil, Nasreen;Kolb, Martin;Ryerson, Christopher J
Affiliation: Respiratory and Sleep Medicine
Institute for Breathing and Sleep
Department of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
Department of Medicine, McGill University, Montreal, Quebec, Canada.
Département de Médecine, Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada.
Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
Department of Medicine, Firestone Institute for Respiratory Health, McMaster University, Hamilton, Ontario, Canada; and.
Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.;Centre for Heart Lung Innovation, St. Paul's Hospital, Vancouver, British Columbia, Canada.
Issue Date: 15-Oct-2024
Publication information: American journal of respiratory and critical care medicine 2024-10-15; 210(8)
Abstract: Rationale: Cough is a key symptom in patients with fibrotic interstitial lung disease (ILD). Objectives: This study evaluated the prevalence, longitudinal change, associations, and prognostic significance of cough severity in patients with fibrotic ILD. Methods: We included consecutive patients with idiopathic pulmonary fibrosis (IPF) and non-IPF fibrotic ILD who completed the 100-mm Cough Severity Visual Analog Scale from the prospective multicenter Canadian Registry for Pulmonary Fibrosis. Baseline cough severity and associations with patient demographics and clinical factors were determined. Relationships between baseline cough severity and health outcomes were evaluated. Measurements and Main Results: Patients with IPF (n = 1,061) had higher median baseline cough severity than those with non-IPF fibrotic ILD (n = 2,825) (24 vs. 20 mm; P < 0.001), with worse cough associated with gastroesophageal reflux disease for both cohorts. Worse cough severity was independently associated with worse health-related quality of life at baseline, larger annualized decline in DlCO, development of disease progression, and reduced transplant-free survival in both IPF and non-IPF fibrotic ILD cohorts. The IPF cohort (2.2 mm; 95% confidence interval, 1.6-2.9 mm) had larger annualized increments in cough severity than the non-IPF fibrotic ILD cohort (1.1 mm; 95% confidence interval, 0.8-1.4 mm; P = 0.004). There was no difference in worsening cough over time comparing those receiving and not receiving ILD-targeted therapy or with and without lung function decline. Conclusions: Cough is common in patients with IPF and non-IPF fibrotic ILD, with increasing cough severity over time irrespective of ILD-targeted therapy. Patient-reported cough severity has prognostic implications on health-related quality of life, disease progression, and survival in fibrotic ILD.
URI: https://ahro.austin.org.au/austinjspui/handle/1/35554
DOI: 10.1164/rccm.202311-2101OC
ORCID: 0000-0002-5434-9342
0000-0003-1205-5511
0000-0002-2497-9984
0000-0003-3837-1467
Journal: American journal of respiratory and critical care medicine
Start page: 1035
End page: 1044
PubMed URL: 38536110
ISSN: 1535-4970
Type: Journal Article
Subjects: chronic cough
cough
health outcomes
idiopathic pulmonary fibrosis
interstitial lung disease
Cough/etiology
Cough/physiopathology
Cough/epidemiology
Lung Diseases, Interstitial/physiopathology
Lung Diseases, Interstitial/epidemiology
Lung Diseases, Interstitial/mortality
Canada/epidemiology
Idiopathic Pulmonary Fibrosis/epidemiology
Idiopathic Pulmonary Fibrosis/physiopathology
Idiopathic Pulmonary Fibrosis/complications
Idiopathic Pulmonary Fibrosis/mortality
Appears in Collections:Journal articles

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