ArticleAsian Pacific journal of cancer prevention : APJCP2025
Poor Prognostic Clinicopathological Features of Young Women with Breast Cancer in the MF18-04 Turkish National Breast Cancer Registry Study.
Article in Asian Pacific journal of cancer prevention : APJCP, 2025. 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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Abstract
objectiveThe role of younger age as a prognostic factor in breast cancer remains debated. Despite its association with an aggressive clinical course, there is insufficient research on its etiology. This study aimed to analyze age-related differences in breast cancer diagnosis among Turkish women. MATERIALS AND
methodsData from 23,594 patients in the National Breast Cancer Database (NBCD) were analyzed. The demographic, clinical, and pathological characteristics of patients aged ≤40 years were compared with those >40 years.
resultsThe median age was 50 years (range 18-97). Among them, 4,535 patients (19%) were 40 years old or younger, with 84% of this subgroup being over 30 years old. Conversely, 19,059 patients (81%) were older than 40. Patients in the younger age group were less likely to have pathologic T1 disease (41% vs. 47%), N0 disease (49% vs. 55%), and Stage I disease (25% vs. 31%) compared to those over 40 (p<0.001). The rates of mastectomy (41% vs. 39%; p = 0.024) and axillary dissection (71% vs. 65%; p = 0.001) were higher among patients diagnosed at 40 years of age or younger. Multivariate analysis identified significant associations in younger patients, including invasive ductal carcinoma (95% CI, 1.06-1.43), estrogen receptor (ER) negativity (95% CI, 1.26-1.87), PR negativity (95% CI, 1.21-1.75), high histologic grade (95% CI, 1.43-1.87), multifocality/multicentricity (95% CI, 1.26-1.72), T3-T4 tumors (95% CI, 1.06-1.66), and axillary positivity (95% CI, 1.025-1.321).
conclusionsBreast cancer diagnosed at ≤40 years is more likely to exhibit aggressive biology, multifocality, or multicentricity presentation, and present at advanced stages. Consequently, younger patients experience higher rates of mastectomy and axillary dissection. These findings suggest a poorer prognosis, highlighting the need for more intensive therapeutic strategies in this population.
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