Evidence map›Paper›PMID 29855830›Full record

ArticleAnnals of surgical oncology2018

Metaplastic Breast Cancer Treatment and Outcomes in 2500 Patients: A Retrospective Analysis of a National Oncology Database.

Cecilia T Ong, Brittany M Campbell, Samantha M Thomas, Rachel A Greenup, Jennifer K Plichta, Laura H Rosenberger, Jeremy Force, Allison Hall, Terry Hyslop, E Shelley Hwang and 1 more

Open access · greenAbstract read
In one paragraph

Article in Annals of surgical oncology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 6% 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

77 citing papers in PubMed, 1 synthesis or guideline pooled it, 112 citations in OpenAlex.

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17 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 1 country.

Cecilia T OngDepartment of Surgery, Duke University Medical Center, Durham, NC, USA.
Brittany M CampbellDuke University School of Medicine, Durham, NC, USA.
Samantha M ThomasDepartment of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA.
Rachel A GreenupDepartment of Surgery, Duke University Medical Center, Durham, NC, USA.
Jennifer K PlichtaDepartment of Surgery, Duke University Medical Center, Durham, NC, USA.
Laura H RosenbergerDepartment of Surgery, Duke University Medical Center, Durham, NC, USA.
Jeremy ForceDuke Cancer Institute, Durham, NC, USA.
Allison HallDuke Cancer Institute, Durham, NC, USA.
Terry HyslopDepartment of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA.
E Shelley HwangDepartment of Surgery, Duke University Medical Center, Durham, NC, USA.
Oluwadamilola M FayanjuDepartment of Surgery, Duke University Medical Center, Durham, NC, USA. lola.fayanju@duke.edu.
Duke Cancer InstituteDuke Medical Center · USDuke University · US

Funding

Women's Cancer Research ProgramP30CA014236 · NCI · DUKE UNIVERSITY · PI DONNA NIEDZWIECKI · 1985 to 2026
$174.8M
Interdisciplinary Research Careers in Women's HealthK12HD043446 · NICHD · DUKE UNIVERSITY · PI AMUNDSEN, CINDY · 2002 to 2023
$9.6M
Duke CTSA (Composite)KL2TR001115 · NCATS · DUKE UNIVERSITY · PI BOULWARE, LEIGH E, KRAFT, MONICA · 2013 to 2017
$5.1M
National Cancer Institute P30CA014236National Center for Advancing Translational Sciences 5KL2TR001115NCATS NIH HHS KL2 TR001115NCI NIH HHS P30 CA014236NICHD NIH HHS K12 HD043446Office of Research on Women's Health K12HD043446
6 · The paper itself

Abstract

backgroundMetaplastic breast cancer (MBC) is characterized by chemoresistance and hematogenous spread. We sought to identify factors associated with improved MBC outcomes and increased likelihood of MBC diagnosis.

methodsWomen ≥ 18 years of age with stage I-III MBC and non-MBC diagnosed between 2010 and 2014 were identified in the National Cancer Data Base. Kaplan-Meier and multivariate Cox proportional hazards models were used to estimate associations with overall survival (OS). Multivariate logistic regression identified factors associated with MBC diagnosis.

resultsOverall, 2451 MBC and 568,057 non-MBC patients were included; 70.3% of MBC vs. 11.3% of non-MBC patients were triple negative (p < 0.001). Five-year OS was reduced among MBC vs. non-MBC patients for the entire cohort (72.7 vs. 87.5%) and among triple-negative patients (71.1 vs. 77.8%; both p < 0.001). In MBC, triple-negative (vs. luminal) subtype was not associated with worse OS (hazard ratio [HR] 1.16, 95% confidence interval [CI] 0.88-1.54, p = 0.28). Compared with non-MBC patients, MBC patients were more likely to receive mastectomy (59.0 vs. 44.9%), chemotherapy (74.1 vs. 43.1%), and axillary lymph node dissection (ALND; 35.2 vs. 32.2%, all p ≤ 0.001). MBC patients more frequently had negative ALND (pN0) than non-MBC patients (20.0 vs. 10.6%, p < 0.001). Among MBC patients, chemotherapy (HR 0.69, 95% CI 0.53-0.89, p = 0.004) and radiotherapy (HR 0.52, 95% CI 0.39-0.69, p < 0.001) were associated with improved survival, while ALND was associated with decreased survival (HR 1.37, 95% CI 1.06-1.77, p = 0.02).

conclusionsMBC patients had worse survival than non-MBC patients, independent of receptor status, suggesting that MBC may confer an additional survival disadvantage. Multimodal therapy was associated with improved outcomes, but ALND was not and may be overutilized in MBC.

Indexed as

Databases, FactualAgedAxillaBreast NeoplasmsCombined Modality TherapyFemaleFollow-Up StudiesHumansMetaplasiaMiddle AgedPrognosisRetrospective StudiesSurvival Rate

Identifiers

PMID29855830
PMCPMC6039971
OpenAlexW2805696891

What OpenQuestion holds

Textmetadata
LicenceTDM
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.