Table 4 Multivariate analysis for disease-free survival and overall survival in the AYA and non-AYA groups

 Maximum tumor size > 5 cm

1.3

1.1–2.4

< 0.01

1.5

1.1–2.7

< 0.01

 Portal vein invasion

1.8

1.5–2.3

< 0.01

1.6

1.4–2.4

< 0.01

 Tumor capsule formation

0.6

0.3–0.8

< 0.05

 TNM stage

2.1

1.5–3.1

< 0.01

3.1

2.1–5.4

< 0.01

 AFP > 100 ng/dL

1.4

1.1–2.5

< 0.01

 Maximum tumor size > 5 cm

1.5

1.2–2.1

< 0.01

1.7

1.2–2.6

< 0.01

 Portal vein invasion

2.1

1.3–3.3

< 0.01

2.5

1.4–3.5

< 0.01

 Satellite nodules

1.9

1.3–2.7

< 0.05

 Tumor capsule formation

0.5

0.2–0.9

< 0.05

0.7

0.3–0.9

< 0.01

 TNM stage

2.7

1.3–4.1

< 0.01

1.8

1.1–3.1

< 0.01

 AFP > 100 ng/dL

2.0

1.2–4.1

< 0.05