Interstitial lung disease in a veterans affairs regional network; a retrospective cohort study.

dc.contributor.author

Bedoya, Armando

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Pleasants, Roy A

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Boggan, Joel C

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Seaman, Danielle

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Reihman, Anne

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Howard, Lauren

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Kundich, Robert

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Welty-Wolf, Karen

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Tighe, Robert M

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Arjomandi, Mehrdad

dc.date.accessioned

2021-06-02T20:25:50Z

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2021-06-02T20:25:50Z

dc.date.issued

2021-01

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2021-06-02T20:25:49Z

dc.description.abstract

Background

The epidemiology of Interstitial Lung Diseases (ILD) in the Veterans Health Administration (VHA) is presently unknown.

Research question

Describe the incidence/prevalence, clinical characteristics, and outcomes of ILD patients within the Veteran's Administration Mid-Atlantic Health Care Network (VISN6).

Study design and methods

A multi-center retrospective cohort study was performed of veterans receiving hospital or outpatient ILD care from January 1, 2008 to December 31st, 2015 in six VISN6 facilities. Patients were identified by at least one visit encounter with a 515, 516, or other ILD ICD-9 code. Demographic and clinical characteristics were summarized using median, 25th and 75th percentile for continuous variables and count/percentage for categorical variables. Characteristics and incidence/prevalence rates were summarized, and stratified by ILD ICD-9 code. Kaplan Meier curves were generated to define overall survival.

Results

3293 subjects met the inclusion criteria. 879 subjects (26%) had no evidence of ILD following manual medical record review. Overall estimated prevalence in verified ILD subjects was 256 per 100,000 people with a mean incidence across the years of 70 per 100,000 person-years (0.07%). The prevalence and mean incidence when focusing on people with an ILD diagnostic code who had a HRCT scan or a bronchoscopic or surgical lung biopsy was 237 per 100,000 people (0.237%) and 63 per 100,000 person-years respectively (0.063%). The median survival was 76.9 months for 515 codes, 103.4 months for 516 codes, and 83.6 months for 516.31.

Interpretation

This retrospective cohort study defines high ILD incidence/prevalence within the VA. Therefore, ILD is an important VA health concern.
dc.identifier

PONE-D-20-27587

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1932-6203

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1932-6203

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https://hdl.handle.net/10161/23332

dc.language

eng

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Public Library of Science (PLoS)

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PloS one

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10.1371/journal.pone.0247316

dc.title

Interstitial lung disease in a veterans affairs regional network; a retrospective cohort study.

dc.type

Journal article

duke.contributor.orcid

Bedoya, Armando|0000-0001-6496-7024

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Boggan, Joel C|0000-0003-3564-2807

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Tighe, Robert M|0000-0002-3465-9861

pubs.begin-page

e0247316

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3

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School of Medicine

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Biostatistics & Bioinformatics

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Medicine, Pulmonary, Allergy, and Critical Care Medicine

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Duke

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Basic Science Departments

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Medicine

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Clinical Science Departments

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Environmental Sciences and Policy

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Nicholas School of the Environment

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Medicine, General Internal Medicine

pubs.publication-status

Published

pubs.volume

16

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