Figure 2.

Kaplan–Meier analysis depicts overall survival after ²²³Ra-therapy as a function of pre-treatment PSA (a), number of lesions (b) and TLA (c), respectively. Panel (a) shows that patients with PSA ≤ 50.2 ng/mL (blue line) had significantly longer survival than those with PSA > 50.2 ng/mL (green line). Panel (b) depicts that subjects with a number of lesions ≤ 20 (blue line) presented significantly longer survival than those presenting > 20 lesions (green line). Panel (c) demonstrates that subjects with TLA ≤ 351.5 g (blue line) survived significantly longer than those with TLA > 351.5 g (green line).