- Prognostic value of F-FDG PET / CT for survival Table 3.18: Prognostic factors for overall survival Parameter Univariate Multivariate HR p HR p ECOG (1 - 2 vs 0) 11.23 0.02 377.75 0.07 Non-response from RECIST 6.48 0.02 6.47 0.16 SUVmean 1 1.23 0.06 1.37 1.37 MTV 1 1.04 0.04 1.00 0.99 TLG 1 1.00 0.06 1.01 0.83 SUVmax 2 1.12 0.09 1.06 0.76 MTV 2 1.07 0.02 1.22 0.35 TLG 2 1.01 0.09 0.97 0.52 None of the variables had an independent prognosis for overall survival (p > 0.05).