Evidence map›Paper›PMID 31085285›Full record

Trial reportInternational journal of radiation oncology, biology, physics2019

Development and Validation of a Nomogram to Predict Lymphedema After Axillary Surgery and Radiation Therapy in Women With Breast Cancer From the NCIC CTG MA.20 Randomized Trial.

Jeffrey P Gross, Timothy J Whelan, Wendy R Parulekar, Bingshu E Chen, Alfred W Rademaker, Irene B Helenowski, Eric D Donnelly, Jonathan B Strauss

Open access · bronzeAbstract readClinical Trial, Phase IIIRandomized Controlled TrialValidation Study
PubMed Publisher
In one paragraph

Trial report in International journal of radiation oncology, biology, physics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 3 pooled it
3.1field-weighted citation impact, top 7% 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

28 citing papers in PubMed, 3 syntheses or guidelines pooled it, 53 citations in OpenAlex.

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  18. Development and validation of a nomogram to predict the risk of breast cancer-related lymphedema among Chinese breast cancer survivors.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Jeffrey P GrossDepartment of Radiation Oncology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
Timothy J WhelanDivision of Radiation Oncology, Department of Oncology, McMaster University, Hamilton, Ontario.
Wendy R ParulekarCanadian Cancer Trials Group, Queen's University, Kingston, Ontario.
Bingshu E ChenCanadian Cancer Trials Group, Queen's University, Kingston, Ontario.
Alfred W RademakerDepartment of Preventative Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
Irene B HelenowskiDepartment of Preventative Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
Eric D DonnellyDepartment of Radiation Oncology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
Jonathan B StraussDepartment of Radiation Oncology, Northwestern University Feinberg School of Medicine, Chicago, Illinois. Electronic address: jstrauss@alumni.brown.edu.
Northwestern University · USQueen's University · CAMcMaster University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeRegional nodal irradiation for women with breast cancer is known to be an important risk factor for the development of upper extremity lymphedema, but tools to accurately predict lymphedema risks for individual patients are lacking. This study sought to develop and validate a nomogram to predict lymphedema risk after axillary surgery and radiation therapy in women with breast cancer. METHODS AND MATERIALS: Data from 1832 women accrued on the MA.20 trial between March 2000 and February 2007 were used to create a prognostic model with National Cancer Institute Common Toxicity Criteria Version 2.0 grade 2 or higher lymphedema as the primary endpoint. Multivariable logistic regression estimated model performance. External validation was performed on data from a single large academic cancer center (N = 785).

resultsIn the MA.20 trial cohort, 3 risk factors were predictive of lymphedema risk: body mass index (adjusted odds ratio, 1.05 per unit body mass index; 95% confidence interval [CI], 1.03-1.08, P < .001), extent of axillary surgery (adjusted odds radio for 8-11 lymph nodes removed, 3.28 [95% CI, 1.53-7.89] P = .004; 12-15 lymph nodes, 4.04 [95% CI, 1.76-10.26] P = .002; ≥16 nodes, 5.08 [95% CI, 2.26-12.70] P < .001), and extent of nodal irradiation (adjusted odds radio for limited, 1.66 [95% CI, 1.08-2.56] P = .02; for extensive, 2.31 [95% CI, 1.28-4.10] P = .004). A nomogram was created from these data that predicted lymphedema risk with reasonable accuracy confirmed by both internal (concordance index, 0.69; 95% CI, 0.64-0.74) and external validation (concordance index, 0.71; 95% CI, 0.66-0.76).

conclusionsThe nomogram created from the MA.20 randomized trial data using clinical information may be useful for lymphedema screening and risk stratification for therapeutic intervention trials.

Indexed as

NomogramsAdultAxillaBody Mass IndexBreast NeoplasmsCanadaConfidence IntervalsFemaleHumansLymphatic IrradiationLymphedemaLymph Node ExcisionMiddle AgedOdds RatioPostoperative ComplicationsRisk Assessment

Identifiers

PMID31085285
OpenAlexW2943924806

What OpenQuestion holds

Textmetadata
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.