Evidence map›Paper›PMID 34808436›Full record

ArticleBreast (Edinburgh, Scotland)2021

Effects of postmastectomy radiotherapy on survival in different age groups for patients with T3N0M0 breast cancer.

Meng-Ting He, Xun-Xi Lu, Zong-Chao Gou

Open access · goldAbstract read
In one paragraph

Article in Breast (Edinburgh, Scotland), 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
1.1field-weighted citation impact, top 25% 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, 15 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 1 institution in 1 country.

Meng-Ting HeWest China School of Medicine, West China Hospital, Sichuan University, Chengdu, People's Republic of China.
Xun-Xi LuDepartment of Pathology, West China Hospital, Sichuan University, Chengdu, People's Republic of China; Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, People's Republic of China.
Zong-Chao GouDepartment of Breast Surgery, West China Hospital, Sichuan University, Chengdu, People's Republic of China; State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, People's Republic of China. Electronic address: fdchao@126.com.
Sichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPostmastectomy radiotherapy (PMRT), as an important regional treatment, improves the survival rate of patients with T3N0M0 breast cancers. However, the therapeutic effect of PMRT on T3N0M0 patients in different age groups is unclear.

methodsUsing Surveillance, Epidemiology, and End Results database, we identified 4840 T3N0M0 patients between 2000 and 2015. The primary and secondary outcomes were overall survival (OS) and breast cancer-specific survival (BCSS). Survival outcomes were compared using Kaplan-Meier survival test, COX regression analysis, propensity score matching and forest plot, which present the relationship between age and PMRT.

resultsSurvival analysis demonstrated that for young patients (aged 18-45 and 46-55), there was no significant difference in OS between with and without PMRT. However, for patients older than 65 years, PMRT could significantly improve survival time (P < 0.001). Multivariate Cox analysis of OS showed older patients with PMRT had a lower hazard ratio (HR) than those without PMRT (aged 56-65: HR = 0.67, P = 0.014; aged >65: HR = 0.60, P < 0.001), and little benefit for young patients. The consistent results were also observed in 1:1 matched cohort. Subgroup analysis revealed the survival HRs of with versus without PMRT for patients older than 65 years were significant in most subgroups.

conclusionThe effect of PMRT in T3N0M0 patients is related to the age. PMRT is associated with improved survival in older patients with T3N0M0 breast cancer, especially those older than 65 years. While the benefit of PMRT is limited in T3N0M0 patients of young age. The observation suggests the importance of age for T3N0M0 patients when individualized treatment is made.

Indexed as

Breast NeoplasmsAgedFemaleHumansKaplan-Meier EstimateMastectomyNeoplasm StagingRadiotherapy, AdjuvantRetrospective StudiesSurvival AnalysisAgeBreast cancer-specific survivalOverall survivalPostmastectomy radiotherapyT3N0M0 breast Cancer

Identifiers

PMID34808436
PMCPMC8606543
OpenAlexW3217707706

What OpenQuestion holds

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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.