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To investigate the correlation of baseline plasma D-dimer levels and clinicopathological features and tumor VEGF expression in non-small cell lung cancer(NSCLC) patients, and to evaluate the value of D-dimer in predicting survival time.
A retrospective review of the clinicopathological data of 290 NSCLC patients confirmed pathologically in Tianjin Cancer Hospital from July 2007 to April 2009 was performed. The correlations between plasma baseline D-dimer levels and clinicopathological characteristics and progonosis were analyzed.
For 290 NSCLC patients with low ( ≤ 0.3 µg/ml) and high (>0.3 µg/ml) D-dimer levels, the median survival times were 54.0 months and 46.2 months, respectively (P < 0.05), and for the patients with stages I, II, IIIA, IIIB and IV NSCLC, the median survival times were 58.1, 40.6, 26.7 and 23.5 months, respectively (P < 0.05). In the operable patients (stages I, II and IIIa) with low and high D-dimer levels, the median progression-free survivals (PFS) were 35.0 and 11.0 months, respectiv