Zhou et al reported a model and nomogram for predicting prognosis for a patient with Ewing sarcoma of bone. This can help to identify a patient who may require more aggressive or novel therapy. The authors are from Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine in Zhejiang. China.
Patient selection: Ewing sarcoma of bone
Outcome: 5-year overall survival
Parameters:
(1) age in years
(2) race
(3) stage
(4) tumor site
(5) tumor size in mm
(6) chemotherapy
Parameter
Finding
Points
age in years
< 13 years
0
13 to 28 years
47.7
> 28 years
95.5
race
White
0
Black
13.3
other
26.4
stage
localized
0
regional spread
50
distant metastases
100
tumor site
appendicular bone
0
axial bone
25.7
tumor size
< 71 mm
0
71 to 115 mm
25.3
> 115 mm
50.9
chemotherapy
no
0
yes
88
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 386.5
• The greater the score the worse the 5-year survival.
