Evidence map›Paper›PMID 33932466›Full record

Observational studyChest2021

Predicting Lymph Node Metastasis in Non-small Cell Lung Cancer: Prospective External and Temporal Validation of the HAL and HOMER Models.

Gabriela Martinez-Zayas, Francisco A Almeida, Lonny Yarmus, Daniel Steinfort, Donald R Lazarus, Michael J Simoff, Timothy Saettele, Septimiu Murgu, Tarek Dammad, D Kevin Duong and 34 more

Open access · greenAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Chest, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 5% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

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  6. Global trends and academic landscapes of ultrasound applications in lung cancer research: a bibliometric analysis (2000-2024).Cancer imaging : the official publication of the International Cancer Imaging Society · 2025
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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

44 authors at 9 institutions in 2 countries.

Gabriela Martinez-ZayasDepartment of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX.
Francisco A AlmeidaDepartment of Pulmonary Medicine, Cleveland Clinic, Cleveland, OH.
Lonny YarmusDivision of Pulmonary and Critical Care, Johns Hopkins University, Baltimore, MD.
Daniel SteinfortDepartment of Respiratory Medicine, Royal Melbourne Hospital, Melbourne, Australia; Department of Medicine, University of Melbourne, Melbourne, Australia.
Donald R LazarusDepartment of Pulmonary, Critical Care, and Sleep Medicine, Baylor College of Medicine, Houston, TX.
Michael J SimoffDepartment of Pulmonary and Critical Care Medicine, Henry Ford Hospital, Detroit, MI.
Timothy SaetteleDepartment of Pulmonary Disease and Critical Care Medicine, Saint Luke's Hospital of Kansas City, Kansas City, MO.
Septimiu MurguDivision of Pulmonary and Critical Care Medicine, University of Chicago, Chicago, IL.
Tarek DammadDepartment of Pulmonary Medicine, University of New Mexico, Albuquerque, NM; Department of Pulmonary and Critical Care Medicine, CHRISTUS St. Vincent Medical Center, Santa Fe, NM.
D Kevin DuongDepartment of Pulmonary, Allergy and Critical Care Medicine, Stanford University Medical Center and School of Medicine, Stanford, CA.
Lakshmi MudambiDivision of Pulmonary and Critical Care, VA Portland Health Care System, Oregon Health and Science University, Portland, OR.
Joshua J FilnerDepartment of Pulmonary Medicine, Northwest Permanente and The Center for Health Research, Kaiser Permanente Northwest, Portland, OR.
Sofia MolinaDepartment of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX.
Carlos AravenaDepartment of Respiratory Diseases, Pontificia Universidad Catolica de Chile, Santiago, Chile.
Jeffrey ThiboutotDivision of Pulmonary and Critical Care, Johns Hopkins University, Baltimore, MD.
Asha BonneyDepartment of Respiratory Medicine, Royal Melbourne Hospital, Melbourne, Australia.
Adriana M RuedaDepartment of Pulmonary, Critical Care, and Sleep Medicine, Baylor College of Medicine, Houston, TX.
Labib G DebianeDepartment of Pulmonary and Critical Care Medicine, Henry Ford Hospital, Detroit, MI.
D Kyle HogarthDivision of Pulmonary and Critical Care Medicine, University of Chicago, Chicago, IL.
Harmeet BediDepartment of Pulmonary, Allergy and Critical Care Medicine, Stanford University Medical Center and School of Medicine, Stanford, CA.
Mark DeffebachDivision of Pulmonary and Critical Care, VA Portland Health Care System, Oregon Health and Science University, Portland, OR.
Ala-Eddin S SagarDepartment of Pulmonary Medicine, Banner MD Anderson Cancer Center, Gilbert, AZ.
Joseph CiceniaDepartment of Pulmonary Medicine, Cleveland Clinic, Cleveland, OH.
Diana H YuDivision of Pulmonary, Critical Care and Sleep Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA.
Avi CohenDepartment of Pulmonary and Critical Care Medicine, Henry Ford Hospital, Detroit, MI.
Laura FryeDivision of Allergy, Pulmonary and Critical Care Medicine, University of Wisconsin, Madison, WI.
Horiana B GrosuDepartment of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX.
Thomas GildeaDepartment of Pulmonary Medicine, Cleveland Clinic, Cleveland, OH.
David Feller-KopmanDivision of Pulmonary and Critical Care, Johns Hopkins University, Baltimore, MD.
Roberto F CasalDepartment of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX.
Michael MachuzakDepartment of Pulmonary Medicine, Cleveland Clinic, Cleveland, OH.
Muhammad H ArainDepartment of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX.
Sonali SethiDepartment of Pulmonary Medicine, Cleveland Clinic, Cleveland, OH.
George A EapenDepartment of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX.
Louis LamDepartment of Pulmonary Medicine, Cleveland Clinic, Cleveland, OH.
Carlos A JimenezDepartment of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX.
Manuel RibeiroDepartment of Pulmonary Medicine, Cleveland Clinic, Cleveland, OH.
Laila Z NoorDepartment of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX.
Atul MehtaDepartment of Pulmonary Medicine, Cleveland Clinic, Cleveland, OH.
Juhee SongDepartment of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX.
Humberto ChoiDepartment of Pulmonary Medicine, Cleveland Clinic, Cleveland, OH.
Junsheng MaDepartment of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX.
Liang LiDepartment of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX.
David E OstDepartment of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX. Electronic address: dost@mdanderson.org.
The University of Texas MD Anderson Cancer Center · USCleveland Clinic · USHenry Ford Hospital · USJohns Hopkins University · USBaylor College of Medicine · USUniversity of Chicago · USThe Royal Melbourne Hospital · AUUniversity of Southern California · USUniversity of Wisconsin–Madison · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
NCI NIH HHS P30 CA016672
6 · The paper itself

Abstract

backgroundTwo models, the Help with the Assessment of Adenopathy in Lung cancer (HAL) and Help with Oncologic Mediastinal Evaluation for Radiation (HOMER), were recently developed to estimate the probability of nodal disease in patients with non-small cell lung cancer (NSCLC) as determined by endobronchial ultrasound-transbronchial needle aspiration (EBUS-TBNA). The objective of this study was to prospectively externally validate both models at multiple centers. RESEARCH QUESTION: Are the HAL and HOMER models valid across multiple centers? STUDY DESIGN AND

methodsThis multicenter prospective observational cohort study enrolled consecutive patients with PET-CT clinical-radiographic stages T1-3, N0-3, M0 NSCLC undergoing EBUS-TBNA staging. HOMER was used to predict the probability of N0 vs N1 vs N2 or N3 (N2|3) disease, and HAL was used to predict the probability of N2|3 (vs N0 or N1) disease. Model discrimination was assessed using the area under the receiver operating characteristics curve (ROC-AUC), and calibration was assessed using the Brier score, calibration plots, and the Hosmer-Lemeshow test.

resultsThirteen centers enrolled 1,799 patients. HAL and HOMER demonstrated good discrimination: HAL ROC-AUC = 0.873 (95%CI, 0.856-0.891) and HOMER ROC-AUC = 0.837 (95%CI, 0.814-0.859) for predicting N1 disease or higher (N1|2|3) and 0.876 (95%CI, 0.855-0.897) for predicting N2|3 disease. Brier scores were 0.117 and 0.349, respectively. Calibration plots demonstrated good calibration for both models. For HAL, the difference between forecast and observed probability of N2|3 disease was +0.012; for HOMER, the difference for N1|2|3 was -0.018 and for N2|3 was +0.002. The Hosmer-Lemeshow test was significant for both models (P = .034 and .002), indicating a small but statistically significant calibration error.

interpretationHAL and HOMER demonstrated good discrimination and calibration in multiple centers. Although calibration error was present, the magnitude of the error is small, such that the models are informative.

Indexed as

Lymphatic MetastasisBiopsy, Fine-NeedleBronchoscopyCalibrationCarcinoma, Non-Small-Cell LungEndosonographyFemaleHumansImage-Guided BiopsyLung NeoplasmsMaleMediastinumMiddle AgedNeoplasm StagingPatient SelectionPredictive Value of Testsendobronchial ultrasoundlung cancerlung cancer stagingmediastinal adenopathy

Identifiers

PMID33932466
PMCPMC8727846
OpenAlexW3159582117

What OpenQuestion holds

Textmetadata
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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.