Evidence map›Paper›PMID 33393476›Full record

Observational studyChest2021

A Comparison of the PanCan Model and Lung-RADS to Assess Cancer Probability Among People With Screening-Detected, Solid Lung Nodules.

Vandana Sundaram, Michael K Gould, Viswam S Nair

Open access · greenAbstract readObservational 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 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.6field-weighted citation impact, top 26% 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

8 citing papers in PubMed, 13 citations in OpenAlex.

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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

3 authors at 3 institutions in 1 country.

Vandana SundaramQuantitative Sciences Unit, Stanford University School of Medicine, Stanford, CA. Electronic address: sund@stanford.edu.
Michael K GouldDivision of Health Services Research and Implementation Science, Kaiser Permanente Southern California, La Cañada Flintridge, CA; Department of Health Systems Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, CA.
Viswam S NairClinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington School of Medicine, Seattle, WA.
Fred Hutch Cancer Center · USKaiser Permanente · USStanford University · US

Funding

Translational Oncology Research Program (Project-005)P30CA124435 · NCI · STANFORD UNIVERSITY · PI Melinda L. Telli · 2007 to 2026
$71.4M
NCI NIH HHS P30 CA124435
6 · The paper itself

Abstract

backgroundThe Pan-Canadian Early Detection of Lung Cancer (PanCan) risk model and the Lung CT Screening Reporting & Data System (Lung-RADS) estimate cancer probability for screening-detected nodules. The accuracy and agreement of these models require further study. RESEARCH QUESTION: What is the performance of the PanCan model and Lung-RADS to estimate the probability of cancer in screening-detected solid nodules? STUDY DESIGN AND

methodsWe analyzed data for newly identified, solid nodules detected on any screening round in the low-dose CT arm of the National Lung Screening Trial to assign a PanCan risk and Lung-RADS score. We compared PanCan risk with the corresponding Lung-RADS category according to the expected prevalence of cancer and examined accuracy using logistic regression and between-test agreement. We also analyzed baseline screen-detected nodules only, high (defined as ≥ 5% probability of cancer) vs low-risk nodules, "risk-gap" nodules with a 3% to 5% PanCan probability and no equivalent Lung-RADS category, and procedure use by model.

resultsParticipants with solid nodules (6,956) had a calculable PanCan risk and Lung-RADS score. PanCan accuracy by cancer probabilities < 1%, 1% to 2%, 5% to 15%, and > 15% was similar to corresponding Lung-RADS categories 2, 3, 4A, and 4B for any solid nodule (area under the curve, 0.84 vs 0.84; P = .95) and for nodules identified at baseline (area under the curve, 0.85 vs 0.84; P = .17). When dichotomized by high/low risk, PanCan and Lung-RADS were discordant (P < .001). Participants with risk-gap nodules (n = 543) were distributed across Lung-RADS categories 2 through 4; 41 (8%) had invasive procedures with 23 (4%) having unnecessary invasive procedure use for solid, benign nodules.

interpretationPanCan and Lung-RADS had similar overall accuracy for assessing cancer in screening-detected, solid lung nodules with evidence of discordance by subgroup. The existence of Lung-RADS category 4 nodules with a ≥ 3% to 5% PanCan risk may result in unnecessary procedures.

Indexed as

Data AccuracyEarly Detection of CancerFemaleHumansLungLung NeoplasmsMaleMiddle AgedModels, StatisticalMultiple Pulmonary NodulesPrecancerous ConditionsRetrospective StudiesRisk AssessmentTomography, X-Ray ComputedUnited Statescancer risk assessmentdiagnostic imagingearly detection cancerlung cancer

Identifiers

PMID33393476
PMCPMC8500997
OpenAlexW3094324332

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.