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. 2019 Jun 28;11(7):909. doi: 10.3390/cancers11070909

Figure 2.

Figure 2

(A) Ki-67 index <15% in the Kaplan–Meier analysis was found as a positive predictive factor for OS (Log rank test p = 0.013). Out of 18 analyzed patients, 6 had Ki-67 index ≥15% and 12 <15%. Seven patients received PRRT as first-line therapy and 11 because of progressive disease. (B) In addition, PRRT administered as first-line treatment, and not because of progressive disease (PD), was found as a positive predictive factor for OS (Log rank test p = 0.41). All 22 patients were analyzed and PRRT was administered as first-line therapy in 13 patients and because of progressive disease in 9.