Document Classification

Section Type: RESULTS

Text: The multivariate analysis showed that ER positivity (hazard ratio [HR], 0. 295 ; 95 % confidence interval [CI], 0. 141-0. 618 ; P = 0. 001), serum VEGF of less than 500 pg/mL after 3 months of intervention (HR, 2. 220 ; 95 % CI, 1. 136-4. 338 ; P = 0. 020), baseline serum NTx of less than 18 nM BCE (HR, 2. 842 ; 95 % CI, 1. 458-5. 539 ; P = 0. 001), and 2 or fewer chemotherapy regimens received (HR, 7. 803 ; 95 % CI, 2. 884-21. 112 ; P = 0. 000) were associated with a better PFS.