Evidence map›Paper›PMID 34156606›Full record

ArticleAdvances in therapy2021

Prevalence and Incidence of Chronic Fibrosing Interstitial Lung Diseases with a Progressive Phenotype in the United States Estimated in a Large Claims Database Analysis.

Amy L Olson, Padmaja Patnaik, Nadine Hartmann, Rhonda L Bohn, Elizabeth M Garry, Laura Wallace

Open access · hybridAbstract read
In one paragraph

Article in Advances in therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Association ofInternational journal of molecular sciences · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. [Surgical Management of Lung Cancer in Patients with Interstitial Lung Disease].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2026
    Review
  7. Article
  8. Article
  9. Article
  10. Pulmonary Involvement in Autoimmune-Mediated Disease.Deutsches Arzteblatt international · 2025
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 2 countries.

Amy L OlsonInterstitial Lung Disease Program, Division of Pulmonary and Critical Care Medicine, Autoimmune Lung Center, National Jewish Health, Denver, CO, USA. amy.olson@boehringer-ingelheim.com.
Padmaja PatnaikBoehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA.
Nadine HartmannBoehringer Ingelheim International GmbH, Ingelheim am Rhein, Germany.
Rhonda L BohnBohn Epidemiology, LLC, Boston, MA, USA.
Elizabeth M GarryAetion Inc, Boston, MA, USA.
Laura WallaceBoehringer Ingelheim International GmbH, Ingelheim am Rhein, Germany.
Boehringer Ingelheim (Germany) · DEAetion (United States) · USBoehringer Ingelheim (United States) · USNational Jewish Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMany fibrosing interstitial lung diseases (ILDs) develop a chronic progressive phenotype. While idiopathic pulmonary fibrosis, which is always progressive, is well characterized with established treatment options, the epidemiology of other chronic fibrosing ILDs with a progressive phenotype has not been widely investigated. Treatment options are limited, with a high unmet need. This claims database study estimates the incidence and prevalence of these diseases in the USA.

methodsDiagnosis, procedure and resource utilization codes from insurance claims were used to identify patients with fibrosing ILD and those with a chronic progressive phenotype among 37,565,644 adult patients in the IBM

resultsThe estimated age- and sex-adjusted prevalence per 100,000 persons of fibrosing ILD (95% confidence interval) was 117.82 (116.56, 119.08) and of chronic fibrosing ILDs with a progressive phenotype was 70.30 (69.32, 71.27). The estimated adjusted incidence per 100,000 patient-years of fibrosing ILD was 51.56 (50.88, 52.24) and of chronic fibrosing ILDs with a progressive phenotype was 32.55 (32.01, 33.09). Among incident fibrosing ILD patients, 57.3% experienced progression over a median of 117 days (interquartile range 63-224), with largely comparable rates of progression among different diseases.

conclusionsChronic fibrosing ILDs with a progressive phenotype comprise a relatively new disease construct requiring varied approaches to obtain reliable estimates of prevalence and incidence. This is the first large claims database study using real-world data to provide estimates of the prevalence and incidence of these diseases among a very large segment of the US population and could form the groundwork for future studies.

Indexed as

Idiopathic Pulmonary FibrosisLung Diseases, InterstitialAdultDisease ProgressionHumansIncidencePhenotypePrevalenceUnited StatesEpidemiologyLung diseaseProgressionPulmonary fibrosis

Identifiers

PMID34156606
PMCPMC8279991
OpenAlexW3174192893

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.