highly significantp = 0.0001
Performance status by ECOG score was strongly associated with survival: patients with ECOG 0 had an MST of 22.5 months (95% CI, 12.1–32.9), ECOG 1 patients 13.3 months (95% CI, 10.4–16.3), and those with ECOG 2 had a markedly shorter MST of 3.3 months (95% CI, 2.8–3.8), with highly significant differences ( p = 0.0001) ( Figure 2 D).