Evidence map›Paper›PMID 42180097›Full record

ArticleFrontiers in oncology2026

Impact of socioeconomic status on tumor stage, molecular subtype distribution, treatment adherence, and survival outcomes in breast cancer.

Ting Li, Huan Liu, Shuang Ma, Li Guo, Jinping Li

Abstract read
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Article in Frontiers in oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Ting LiClinical Medical School, Ningxia Medical University, Yinchuan, Ningxia, China.
Huan LiuClinical Medical School, Ningxia Medical University, Yinchuan, Ningxia, China.
Shuang MaClinical Medical School, Ningxia Medical University, Yinchuan, Ningxia, China.
Li GuoDepartment of Surgical Oncology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China.
Jinping LiDepartment of Surgical Oncology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Socioeconomic status (SES) is a key determinant of cancer outcomes, influencing access to screening, early diagnosis, treatment adherence, and survival. Socioeconomic disparities in breast cancer may contribute to differences in tumor biology, stage at diagnosis, and prognosis. Purpose: This study aimed to evaluate the impact of socioeconomic status on tumor stage at diagnosis, molecular subtype distribution, treatment utilization, adherence, and survival outcomes among patients with breast cancer. Methodology: A retrospective cohort study was conducted using hospital cancer registries and electronic medical records from a tertiary oncology center. A total of 800 patients diagnosed with primary invasive breast cancer were included and categorized into low (n = 300), middle (n = 300), and high (n = 200) SES groups based on income, education, and insurance status. Clinical and pathological variables were collected, including tumor stage, molecular subtype, treatment modalities, adherence patterns, and diagnostic delays. Survival outcomes were assessed using overall survival (OS) and disease-free survival (DFS) with a minimum follow-up of 72 months. Chi-square and ANOVA tests examined group differences, while multivariate logistic regression and Cox proportional hazards models identified predictors of late-stage diagnosis and survival outcomes. Results: Patients with low SES were significantly more likely to present with late-stage disease (49.3%) than those with high SES (25.0%) (p < 0.001). Low SES patients also showed more aggressive tumor characteristics, including larger tumor size, lymph node involvement, higher tumor grade, and elevated Ki-67 levels (p < 0.01). Triple-negative breast cancer was more prevalent in the low SES group (29.3%). Treatment adherence and completion rates were lower among low SES patients, accompanied by greater diagnostic and treatment delays. Survival analysis showed poorer outcomes in low SES patients, with reduced median OS (64 vs. 88 months) and DFS (50 vs. 80 months). Multivariate analysis confirmed low SES as an independent predictor of late-stage diagnosis (OR 2.45) and poorer survival (HR 1.72 for OS; HR 1.60 for DFS). Conclusion: Socioeconomic disparities significantly influence breast cancer stage at diagnosis, tumor characteristics, treatment adherence, and survival. Addressing socioeconomic barriers and improving equitable access to cancer care are essential to reduce disparities in breast cancer outcomes.

Indexed as

breast cancerhealth disparitiesmolecular subtypesocioeconomic statusstage of tumorsurvival ratestreatment compliance

Identifiers

PMID42180097
PMCPMC13194018

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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.