From: Craniospinal irradiation(CSI) in patients with leptomeningeal metastases: risk-benefit-profile and development of a prognostic score for decision making in the palliative setting
Score
Median OS (months)
Median OS (weeks)
0
No extra-CNS disease and KPS ≥ 70
7.3
31.9
1
One of the two factors present
3.3
14.3
2
Extra-CNS disease present and KPS < 70
1.5
6.4