ArticleRevista da Associacao Medica Brasileira (1992)2025
The prognostic value of platelet count and lymphocyte-to-monocyte ratio, Ki-67, and Nottingham indexes in early-stage breast cancer.
Article in Revista da Associacao Medica Brasileira (1992), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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6 authors.
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Abstract
objectiveThe Nottingham Prognostic Index, Ki-67 Prognostic Index, and combination of platelet count and lymphocyte-to-monocyte ratio have shown prognostic significance in breast cancer. This aim of the study was to compare combination of platelet count and lymphocyte-to-monocyte ratio with Nottingham Prognostic Index and Ki-67 Prognostic Index in early-stage breast cancer.
methodsA retrospective cohort study included 321 women aged ≥18 years diagnosed with early-stage breast cancer (2010-2020) who did not receive neoadjuvant chemotherapy. Data were extracted from records, with laboratory values collected preoperatively, postoperatively, and at 6-month and 1-year intervals. Regression and survival analyses evaluated the predictive value of combination of platelet count and lymphocyte-to-monocyte ratio, Nottingham Prognostic Index, and Ki-67 Prognostic Index for disease-free survival and overall survival.
resultsThe mean age at diagnosis was 53.3 years. The mortality rate was 6.2%, and recurrence occurred in 9.3% of patients. Univariate regression showed age as the sole factor influencing overall survival (HR 1.063, p<0.001). Factors associated with disease-free survival included Luminal-B subtype (HR 3.790, p=0.029), estrogen receptor negativity (HR 15.710, p=0.007), human epidermal growth factor receptor 2 positivity (HR 4.833, p<0.001), Nottingham Prognostic Index (HR 1.967, p=0.009), and Ki-67 Prognostic Index stage (HR 1.908, p=0.008). Multivariate analysis identified age as the only significant predictor for overall survival, while human epidermal growth factor receptor 2-negativity was the sole independent factor for disease-free survival.
conclusionCombination of platelet count and lymphocyte-to-monocyte ratio did not show significant prognostic value in early-stage hormone receptor-positive breast cancer. However, Nottingham Prognostic Index and Ki-67 Prognostic Index were strong predictors, particularly for disease-free survival.
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