Table 2 Univariate analysis of OS

Age

2.732 (1.241–6.015)

0.013

Tumor site

0.103 (0.014–0.752)

0.025

D-dimer

8.205 (4.085–16.481)

< 0.001

Pathology classification

4.377 (1.978–9.683)

< 0.001

Bone marrow metastasis

6.551 (3.203–13.399)

< 0.001

Bone metastasis

11.610 (5.530–24.372)

< 0.001

NMYC status

6.727 (3.505–12.910)

< 0.001

INSS stage

10.056 (1.378–73.389)

0.023

COG risk classification

23.481 (5.570–98.987)

< 0.001