Factors Univariate analysis Univariate analysis Univariate analysis Multivariate analysis Multivariate analysis Multivariate analysis Score
HR 95% CI p* HR 95% CI p**
Age at diagnosis, years
≤6 1 1 16
>6 0.6 0.5-0.8 <0.001 0.8 0.6-1.0 0.030 0
Race
White 1 1 5
Black 0.9 1.0-1.2 0.037 0.8 1.1-1.2 0.035 3
Other 1.4 0.9-2.0 0.111 0.6 0.3-2.1 0.375 0
Sex
Male 1 1
Female 1.3 1.0-1.5 0.028 1.1 0.9-1.3 0.586
YOD
1998-2008 1
2009-2016 0.9 0.8-1.2 0.568
Tumor size, diameter, cm
≤3 1 1 0
>3 4.6 2.8-7.6 <0.001 1.9 1.1-3.1 0.013 4
Unknown 2.8 1.7-4.5 <0.001 1.7 1.0-2.8 0.037 7
Histologic grade
Well 1 1 0
Moderately 0.7 0.2-3.0 0.669 0.8 0.2-3.1 0.722 3
Poorly 3.4 0.9-13.2 0.075 1.5 2.1-5.8 0.021 5
Undifferentiated 4.8 1.4-16.6 0.013 2.1 0.6-7.3 0.248 8
Unknown 2.1 0.7-6.7 0.189 1.3 0.4-4.0 0.682 10
Stage
Localized 1 1
Regional 1.4 1.0-1.9 0.068 1.2 0.9-1.7 0.292
Distant 2.4 1.2-4.7 0.009 1.5 0.7-2.9 0.275
Surgery
None 1
Yes 0.6 0.3-1.2 0.164
Radiotherapy
None 1 1 0
Yes 5.9 4.3-8.2 <0.001 4.7 3.3-6.6 <0.001 100
Chemotherapy
None 1 1
Yes 1.8 1.5-2.3 <0.001 1.0 0.8-1.3 0.779