Relationship of platelet count with clinicopathological features and prognosis of patients with breast cancer

Abstract

Objective To investigate relationship of platelet (PLT) count with clinicopathological features and prognosis of patients with breast cancer, and explore the susceptibility index to evaluate prognosis of patients with breast cancer. Methods A retrospective analysis of clinical data of 498 patients with breast cancer in January 1995 to December 2005 was carried out. PLT count was tested. Those patients were divided into group A (PLT 250×109/L) according to PLT count level. The relationship of platelet count with clinicopathological features was analyzed. Kaplan-Meier and Cox proportional hazards model were used for univariate analysis and multivariate analysis of PLT impact on survival time. Results There was positively correlated between PLT count and clinicopathological features (Pearson coefficient>0, P<0.05). There was negative correlated between PLT count and survival time (Pearson coefficient=-0.583, P<0.05). The survival time of groups A, B and C were significantly different (P=0.018). Cox proportional hazards model multi-factor analysis showed that PLT count was an independent factors affecting survival time (OR=2.256, P<0.05). Conclusions Patients with breast cancer associated with increased emphasis and PLT count. PLT count had negative correlation with survival time. PLT count could be a susceptible index to predict the prognosis of patients with breast cancer. Key words: Breast neoplasms; Platelet count; Prognosis