Evidence map›Paper›PMID 38685449›Full record

ArticlePractical radiation oncology

Increase in Hypofractionated Radiation Therapy Among Patients with Invasive Breast Cancer or Ductal Carcinoma In Situ: Who is Left Behind?

Sara Booth, Jincong Q Freeman, James L Li, Dezheng Huo

Abstract read
In one paragraph

Article in Practical radiation oncology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

  1. Randomized Trial of Hypofractionated Postmastectomy Radiation Therapy in Women With Breast Reconstruction (RT CHARM, Alliance A221505).Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Awareness, knowledge, and attitudes toward polygenic risk scores for breast cancer in multiethnic high-risk cohorts of women.Genetics in medicine : official journal of the American College of Medical Genetics · 2025
    Article
  6. In Reply to Dimitroyannis.Practical radiation oncology
    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

4 authors.

Sara BoothDepartment of Public Health Sciences, University of Chicago, Chicago, Illinois.
Jincong Q FreemanDepartment of Public Health Sciences, University of Chicago, Chicago, Illinois; Center for Health and the Social Sciences, University of Chicago, Chicago, Illinois.
James L LiDepartment of Public Health Sciences, University of Chicago, Chicago, Illinois; Pritzker School of Medicine, University of Chicago, Illinois.
Dezheng HuoDepartment of Public Health Sciences, University of Chicago, Chicago, Illinois; Center for Clinical Cancer Genetics and Global Health, University of Chicago, Chicago, Illinois. Electronic address: dhuo@bsd.uchicago.edu.

Funding

SPECIALIZED TRAINING PROGRAM IN THE DEMOGRAPHY &ECON.T32AG000243 · NIA · UNIVERSITY OF CHICAGO · PI DAVID O MELTZER · 1994 to 2026
$8.2M
Medical Scientist National Research Service AwardT32GM150375 · NIGMS · UNIVERSITY OF CHICAGO · PI Raghavendra G Mirmira · 2023 to 2026
$5.5M
Identifying Barriers for Slow Update of Effective Radiotherapy Method for CancerR03HS025806 · AHRQ · UNIVERSITY OF CHICAGO · PI HUO, DEZHENG · 2018 to 2019
$99k
AHRQ HHS R03 HS025806NIA NIH HHS T32 AG000243NIGMS NIH HHS T32 GM150375
6 · The paper itself

Abstract

purposeWe aimed to update the trend of hypofractionated whole-breast irradiation (HF-WBI) use over time in the US and examine factors associated with lack of HF-WBI adoption for patients with early-stage invasive breast cancer (IBC) or ductal carcinoma in situ (DCIS) undergoing a lumpectomy. METHODS AND MATERIALS: Among patients who underwent a lumpectomy, we identified 928,034 patients with early-stage IBC and 330,964 patients with DCIS in the 2004 to 2020 National Cancer Database. We defined HF-WBI as 2.5-3.33 Gy/fraction to the breast and conventionally fractionated WBI as 1.8-2.0 Gy/fraction. We evaluated the trend of HF-WBI utilization using a generalized linear model with the log link and binomial distribution. Factors associated with HF-WBI utilization were assessed using multivariable logistic regression in patients diagnosed between 2018 and 2020.

resultsAmong patients with IBC, HF-WBI use has significantly increased from 0.7% in 2004 to 63.9% in 2020. Similarly, HF-WBI usage among patients with DCIS has also increased significantly from 0.4% in 2004 to 56.6% in 2020. Black patients with IBC were less likely than White patients to receive HF-WBI (adjusted odds ratio [AOR] 0.81; 95% CI, 0.77-0.85). Community cancer programs were less likely to administer HF-WBI to patients with IBC (AOR, 0.80; 95% CI, 0.77-0.84) and to those with DCIS (AOR, 0.87; 95% CI, 0.79-0.96) than academic/research programs. Younger age, positive nodes, larger tumor size, low volume programs, and facility location were also associated with lack of HF-WBI adoption in both patient cohorts.

conclusionsHF-WBI utilization among postlumpectomy patients has significantly increased from 2004 to 2020 and can finally be considered standard of care in the US. We found substantial disparities in adoption within patient and facility subgroups. Reducing disparities in HF-WBI adoption has the potential to further alleviate health care costs while improving patients' quality of life.

Indexed as

Breast NeoplasmsCarcinoma, Intraductal, NoninfiltratingRadiation Dose HypofractionationAdultAgedCarcinoma, Ductal, BreastFemaleHumansMastectomy, SegmentalMiddle Aged

Identifiers

PMID38685449
PMCPMC11543517

What OpenQuestion holds

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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.