16 Table 3.20: Prognostic factors for progression-free survival Parameter Univariate Multivariate HR p HR p Non-response from RECIST 4.12 0.01 1.03 0.97 Non-response from PERCIST 3.47 0.01 6.72 0.02 SUVmax 2 1.08 0.07 0.63 0.15 SUVmean 2 1.26 0.06 6.66 0.07 MTV 2 1.05 0.04 1.34 0.01 TLG 2 1.00 0.06 0.95 0.06 MTV 0.99 0.04 1.02 0.12 Independent prognostic variables for disease progression included non-responder according to PERCIST 1.0 (HR = 6.72) and MTV tumor after treatment (HR = 1.34) (p < 0.05).