From: Prognostic value of volumetric metabolic parameters measured by [18F]Fluorodeoxyglucose-positron emission tomography/computed tomography in patients with small cell lung cancer
Variable
HR
95% CI
P
Age (1-year increase)
1.04
1.02–1.06
< 0.001
Clinical stage
  Extensive vs. limited
2.442
1.742–3.425
Sum of MTV
  ≥ 100 cm3 vs. < 100 cm3
1.662
1.204–2.295
0.002